1
|
Maria Antonio M, Faez R. Unlocking Agronutrient Resources: Sorption Strategies for sugar-energy industry waste. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120634. [PMID: 38518490 DOI: 10.1016/j.jenvman.2024.120634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/16/2024] [Accepted: 03/10/2024] [Indexed: 03/24/2024]
Abstract
Vinasse and ash from sugarcane bagasse (SCB) are key byproducts in the sugar-energy industry. Vinasse is nutrient-rich but environmentally challenging, while sugarcane bagasse ash (SCBA) offers excellent adsorbent for treating effluents. This work aims to assess the effectiveness of SCBA in removing nitrogen (N) and potassium (K) nutrients from Vinasse. Simulated standard solutions of K2SO4 and (NH4)2HPO4 were used to mimic the nutrient concentrations in Vinasse and optimize experimental parameters such as adsorbent mass and contact time. Kinetic and isotherm models were also applied to elucidate the underlying adsorption mechanisms. Structural, morphological, and thermal analyses revealed the micro-mesoporous and heterogeneous nature of SCBA, primarily composed of SiO2 (quartz and cristobalite). The sorption assessment indicated the ideal conditions involved lower SCBA masses (2.5 g) and 6 h of contact time for the simulated standard solutions. The replicated conditions for Vinasse (at an adjusted sorption time of 24 h) demonstrated nutrient sorption and pH correction of the Vinasse, attributed to the alkaline nature of SCBA. Analysis of the sorption kinetic models for K+ and NH4+ revealed that SCBA interacts diffusively with the environment, not necessarily controlled by adsorption on active sites, indicating non-uniform characteristics. The sorption isotherms for K+ and NH4+ showed the non-linearized Freundlich model was the most suitable, indicating the adsorption sites with varying energy levels and a multilayer sorption process. In conclusion, we successfully demonstrated the sorption of nutrients from Vinasse by SCBA, enhancing the value of these residues and mitigating their environmental impact when used in agricultural applications.
Collapse
Affiliation(s)
- Milena Maria Antonio
- Graduate Program in Agriculture and Environmental - PPGAA, Federal University of São Carlos, UFSCar, 13600970, Araras, SP, Brazil; Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970, Araras, SP, Brazil
| | - Roselena Faez
- Graduate Program in Agriculture and Environmental - PPGAA, Federal University of São Carlos, UFSCar, 13600970, Araras, SP, Brazil; Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, 13600970, Araras, SP, Brazil.
| |
Collapse
|
2
|
El-Maadawy MM, Elzoghby AA, Masoud AM, El-Deeb ZM, El Naggar AMA, Taha MH. Conversion of carbon black recovered from waste tires into activated carbon via chemical/microwave methods for efficient removal of heavy metal ions from wastewater. RSC Adv 2024; 14:6324-6338. [PMID: 38380235 PMCID: PMC10877484 DOI: 10.1039/d4ra00172a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 02/01/2024] [Indexed: 02/22/2024] Open
Abstract
In this research study, recovered carbon black (rCB) was obtained via pyrolysis of waste tires. The obtained rCB was then converted into activated carbon species through both chemical treatment and microwave coupled with chemical treatment as a two-step activation process. The activated carbon obtained from chemical activation was denoted as C-AC, while that obtained from exposure to microwave followed by chemical activation was labeled as MC-AC. These two structures were consequently introduced as sorbents for the removal of cadmium ions from an aqueous solution. The structural characteristics of the introduced adsorbents were confirmed using various techniques, namely X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, and energy-dispersive X-ray (EDX) spectroscopy. Additionally, textual features of these adsorbents were acquired via both scanning electron microscopy (SEM) and N2 adsorption-desorption BET surface area analyses. These two structures were then introduced for Cd ion adsorption under different operating conditions. Particularly, the effect of pH, contact time, adsorbent dose, and metal ion concentration on the efficiency of adsorption was investigated. The 1maximum adsorption capacity was detected at a pH value of 5.0, a contact time of 30 min, a sorbent dose of 0.4 g L-1, and an initial metal concentration of 50 mg L-1 using MC-AC, which exhibited nearly double the sorption capacity detected for C-AC. Kinetic studies indicated that the process of Cd(ii) adsorption is perfectly described and fitted by the pseudo-second-order model. However, adsorption isotherms for the two adsorbents were found to match the Langmuir model, referring to the occurrence of uniform monolayer adsorption for the metal ions. Thermodynamic analysis demonstrated that the adsorption process was spontaneous and endothermic.
Collapse
Affiliation(s)
- M M El-Maadawy
- Nuclear Materials Authority PO Box 530, El Maddi Cairo Egypt
| | - Amir A Elzoghby
- Nuclear Materials Authority PO Box 530, El Maddi Cairo Egypt
| | - Ahmed M Masoud
- Nuclear Materials Authority PO Box 530, El Maddi Cairo Egypt
| | - Zahraa M El-Deeb
- Chemistry Department, Faculty of Science, Mansoura University Mansoura Egypt
| | - Ahmed M A El Naggar
- Egyptian Petroleum Research Institute (EPRI) 1 Ahmed El-Zomor St., Nasr City Cairo Egypt
| | - Mohamed H Taha
- Nuclear Materials Authority PO Box 530, El Maddi Cairo Egypt
| |
Collapse
|
3
|
Xu S, Chen A, Wang Y, Han Y, Liu M. Effects of blast furnace slag on the immobilization, plant uptake and translocation of Cd in a contaminated paddy soil. ENVIRONMENT INTERNATIONAL 2023; 179:108162. [PMID: 37688807 DOI: 10.1016/j.envint.2023.108162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/11/2023] [Accepted: 08/17/2023] [Indexed: 09/11/2023]
Abstract
The potential toxicity of Cd to soil and rice plant severely threaten human health. This study was conducted to investigate the remediation effects of blast furnace slag (BFS) on the bioavailability of Cd in a contaminated paddy soil from a perspective of soil solution chemistry. Batch experiments, pot culture experiments, and principal analysis (PCA) were used to study the effects and mechanisms of BFS addition changing Cd chemical behavior and Cd toxicity. Results indicated that BFS facilitated Cd adsorption in soils, increased pH, Eh, and EC values in soil solution, whereas reduced dissolved Cd content. BFS amendment was efficient in decreasing root Cd intake and Cd upward transport in rice plant, with the Cd translocation factor in brown rice decreased by ∼ 75% (BFS treatment, 6‰ wt) relative to Cd treatment, which in turn increased rice biomass and grain yield. PCA indicated that the dissolved Cd concentration had a close relationship with soil pH and metal concentration in soil solution. Results from this study indicated that BFS had potential ability for either immobilization or remobilization of Cd in soils, and the findings have important implications for Cd-polluted soil remediation or other resource utilization with slag-based materials.
Collapse
Affiliation(s)
- Shuang Xu
- College of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning 110866, PR China
| | - Aiting Chen
- College of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning 110866, PR China
| | - Yaojing Wang
- College of Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, PR China
| | - Ying Han
- College of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning 110866, PR China.
| | - Mingda Liu
- College of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning 110866, PR China.
| |
Collapse
|
4
|
Khalid AM, Hossain MS, Khalil NA, Zulkifli M, Arafath MA, Shaharun MS, Ayub R, Ahmad Yahaya AN, Ismail N. Adsorptive Elimination of Heavy Metals from Aqueous Solution Using Magnetic Chitosan/Cellulose-Fe(III) Composite as a Bio-Sorbent. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13101595. [PMID: 37242012 DOI: 10.3390/nano13101595] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/13/2023] [Accepted: 05/03/2023] [Indexed: 05/28/2023]
Abstract
Magnetic chitosan/cellulose nanofiber-Fe(III) [M-Ch/CNF-Fe(III)] composites were isolated for the elimination of Cr(VI), Cu(II), and Pb(II) from aqueous solution. Various analytical methods, such as field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction analysis (XRD), and thermogravimetric analysis (TGA) were employed to determine the morphological, physicochemical, and thermal properties of the isolated M-Ch/CNF-Fe(III) composites. It was found that the M-Ch/CNF-Fe(III) composites were porous materials, and they have the potential to be implemented as an adsorbent for heavy metals removal. The adsorption efficiency of M-Ch/CNF-Fe(III) composites was determined for Cr(VI), Cu(II), and Pb(II) elimination with changing pH (pH 1.0-8.0), adsorbent doses (0.05-1.0 g), time (15-90 min), and temperature (28-80 °C). In addition, isothermal and kinetics studies were conducted to assess the adsorption behavior and mass transfer phenomena of M-Ch/CNF-Fe(III) composites as an adsorbent for Cr(VI), Cu(II) and Pb(II) elimination from aqueous solution. The outcomes of the present study reveal that the M-Ch/CNF-Fe(III) composites could be utilized as an adsorbent for the Cr(VI), Cu(II), and Pb(II) elimination from industrial effluents.
Collapse
Affiliation(s)
- Aina Mardhia Khalid
- School of Industrial Technology, Universiti Sains Malaysia (USM), George Town 11800, Malaysia
| | - Md Sohrab Hossain
- Department of Fundamental and Applied Sciences, Faculty of Science and Information Technology, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
| | - Nor Afifah Khalil
- Universiti Kuala Lumpur, Branch Campus Malaysian Institute of Chemical and BioEngineering Technology, Alor Gajah 78000, Malaysia
| | - Muzafar Zulkifli
- Universiti Kuala Lumpur, Branch Campus Malaysian Institute of Chemical and BioEngineering Technology, Alor Gajah 78000, Malaysia
| | - Md Azharul Arafath
- Department of Chemistry, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Maizatul Shima Shaharun
- Institute of Contaminant Management, Centre for Contaminant Control & Utilization (CenCoU), Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
| | - Rashid Ayub
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ahmad Naim Ahmad Yahaya
- Universiti Kuala Lumpur, Branch Campus Malaysian Institute of Chemical and BioEngineering Technology, Alor Gajah 78000, Malaysia
| | - Norli Ismail
- School of Industrial Technology, Universiti Sains Malaysia (USM), George Town 11800, Malaysia
| |
Collapse
|
5
|
Bayuo J, Rwiza MJ, Sillanpää M, Mtei KM. Removal of heavy metals from binary and multicomponent adsorption systems using various adsorbents - a systematic review. RSC Adv 2023; 13:13052-13093. [PMID: 37124024 PMCID: PMC10140672 DOI: 10.1039/d3ra01660a] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 04/19/2023] [Indexed: 05/02/2023] Open
Abstract
The ecosystem and human health are both significantly affected by the occurrence of potentially harmful heavy metals in the aquatic environment. In general, wastewater comprises an array of heavy metals, and the existence of other competing heavy metal ions might affect the adsorptive elimination of one heavy metal ion. Therefore, to fully comprehend the adsorbent's efficiency and practical applications, the abatement of heavy metals in multicomponent systems is important. In the current study, the multicomponent adsorption of heavy metals from different complex mixtures, such as binary, ternary, quaternary, and quinary solutions, utilizing various adsorbents are reviewed in detail. According to the systematic review, the adsorbents made from locally and naturally occurring materials, such as biomass, feedstocks, and industrial and agricultural waste, are effective and promising in removing heavy metals from complex water systems. The systematic study further discovered that numerous studies evaluate the adsorption characteristics of an adsorbent in a multicomponent system using various important independent adsorption parameters. These independent adsorption parameters include reaction time, solution pH, agitation speed, adsorbent dosage, initial metal ion concentration, ionic strength as well as reaction temperature, which were found to significantly affect the multicomponent sorption of heavy metals. Furthermore, through the application of the multicomponent adsorption isotherms, the competitive heavy metals sorption mechanisms were identified and characterized by three primary kinds of interactive effects including synergism, antagonism, and non-interaction. Despite the enormous amount of research and extensive data on the capability of different adsorbents, several significant drawbacks hinder adsorbents from being used practically and economically to remove heavy metal ions from multicomponent systems. As a result, the current systematic review provides insights and perspectives for further studies through the thorough and reliable analysis of the relevant literature on heavy metals removal from multicomponent systems.
Collapse
Affiliation(s)
- Jonas Bayuo
- School of Materials, Energy, Water, and Environmental Sciences (MEWES), The Nelson Mandela African Institution of Science and Technology (NM-AIST) P.O. Box 447 Arusha Tanzania
- Department of Science Education, School of Science, Mathematics, and Technology Education (SoSMTE), C. K. Tedam University of Technology and Applied Sciences (CKT-UTAS) Postal Box 24 Navrongo Upper East Region Ghana
| | - Mwemezi J Rwiza
- School of Materials, Energy, Water, and Environmental Sciences (MEWES), The Nelson Mandela African Institution of Science and Technology (NM-AIST) P.O. Box 447 Arusha Tanzania
| | - Mika Sillanpää
- Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg P. O. Box 17011 Doornfontein 2028 South Africa
| | - Kelvin Mark Mtei
- School of Materials, Energy, Water, and Environmental Sciences (MEWES), The Nelson Mandela African Institution of Science and Technology (NM-AIST) P.O. Box 447 Arusha Tanzania
| |
Collapse
|
6
|
Recycled Smelter Slags for In Situ and Ex Situ Water and Wastewater Treatment—Current Knowledge and Opportunities. Processes (Basel) 2023. [DOI: 10.3390/pr11030783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Slags from the ferrous and nonferrous metallurgical industries have been used to treat toxic contaminants in water and wastewater. Using slag as a recycling or renewable resource rather than a waste product has environmental and economic benefits. Recycled smelter slags can be used in both in situ and ex situ treatment. However, their application has some limitations. One of the challenges is how to handle spent slag adsorbents, as they contain the accumulation of solid waste loaded with high concentrations of toxic contaminants. These challenges can be overcome by regeneration, recycling, reuse, and immobilization treatment of spent slag adsorbents. The present paper explored the scientific and technical information about the composition, reaction mechanisms, adsorption capacity, and opportunities of recycled slags while adsorbing toxic compounds from contaminated water. It comprehensively reviewed the current state of the art for using smelting slags as sustainable adsorbents for water and wastewater. The study revealed that ferrous slags are more effective in removing a wide range of toxic chemicals than nonferrous smelter slags. It investigated the necessary improved approach through the 5Rs (i.e., reduce, reuse, recycle, remove, and recover) using smelter slags as reactive materials in ex situ and in situ treatment.
Collapse
|
7
|
Mathew M, George AM, Tembhurkar AR. Removal of cutting oil from wastewater by utilization of novel adsorbent developed from teak leaf ( Tectona grandis): equilibrium, kinetic, and thermodynamic studies. CHEM ENG COMMUN 2023. [DOI: 10.1080/00986445.2023.2185517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Affiliation(s)
- Mable Mathew
- Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, India
| | - Aju Mathew George
- Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, India
| | - Ajay R. Tembhurkar
- Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, India
| |
Collapse
|
8
|
Pellenz L, de Oliveira CRS, da Silva Júnior AH, da Silva LJS, da Silva L, Ulson de Souza AA, de Souza SMDAGU, Borba FH, da Silva A. A comprehensive guide for characterization of adsorbent materials. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
9
|
Faimon J, Baldík V, Buriánek D, Rez J, Štelcl J, Všianský D, Sedláček J, Dostalík M, Nečas J, Novotný R, Hadacz R, Kryštofová E, Novotná J, Müller P, Krumlová H, Čáp P, Faktorová K, Malík J, Roháč J, Kycl P, Janderková J. Historical ferrous slag induces modern environmental problems in the Moravian Karst (Czech Republic). THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 847:157433. [PMID: 35868374 DOI: 10.1016/j.scitotenv.2022.157433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/26/2022] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
Ferrous slag produced by a historic smelter is washed from a slagheap and transported by a creek through a cave system. Slag filling cave spaces, abrasion of cave walls / calcite speleothems, and contamination of the aquatic environment with heavy metals and other toxic components are concerns. We characterize the slag in its deposition site, map its transport through the cave system, characterize the effect of slag transport, and evaluate the risks to both cave and aqueous environments. The study was based on chemical and phase analysis supported laboratory experiments and geochemical modeling. The slag in the slagheap was dominated by amorphous glass phase (66 to 99 wt%) with mean composition of 49.8 ± 2.8 wt% SiO2, 29.9 ± 1.6 wt% CaO, 13.4 ± 1.2 wt% Al2O3, 2.7 ± 0.3 wt% K2O, and 1.2 ± 0.1 wt% MgO. Minerals such as melilite, plagioclase, anorthite, and wollastonite / pseudowollastonite with lower amounts of quartz, cristobalite, and calcite were detected. Slag enriches the cave environment with Se, As, W, Y, U, Be, Cs, Sc, Cd, Hf, Ba, Th, Cr, Zr, Zn, and V. However, only Zr, V, Co, and As exceed the specified limits for soils (US EPA and EU limits). The dissolution lifetime of a 1 mm3 volume of slag was estimated to be 27,000 years, whereas the mean residence time of the slag in the cave is much shorter, defined by a flood frequency of ca. 47 years. Consequently, the extent of slag weathering and contamination of cave environment by slag weathering products is small under given conditions. However, slag enriched in U and Th can increase radon production as a result of alpha decay. The slag has an abrasive effect on surrounding rocks and disintegrated slag can contaminate calcite speleothems.
Collapse
Affiliation(s)
- Jiří Faimon
- Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37 Brno, Czech Republic; Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic.
| | - Vít Baldík
- Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - David Buriánek
- Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37 Brno, Czech Republic; Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - Jiří Rez
- Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37 Brno, Czech Republic; Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - Jindřich Štelcl
- Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37 Brno, Czech Republic; Department of Biology, Faculty of Education, Masaryk University, Poříčí 623/7, 603 00 Brno, Czech Republic
| | - Dalibor Všianský
- Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37 Brno, Czech Republic
| | - Jan Sedláček
- Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - Martin Dostalík
- Czech Geological Survey, Klárov 131/3, 118 21 Praha, Czech Republic
| | - Jiří Nečas
- Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - Roman Novotný
- Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - Roman Hadacz
- Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - Eva Kryštofová
- Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - Jitka Novotná
- Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - Pavel Müller
- Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| | - Hana Krumlová
- Institute of Physics of the Earth, Masaryk University, Tvrdého 12, 602 00 Brno, Czech Republic
| | - Pavel Čáp
- Czech Geological Survey, Klárov 131/3, 118 21 Praha, Czech Republic
| | | | - Jan Malík
- Czech Geological Survey, Klárov 131/3, 118 21 Praha, Czech Republic
| | - Jakub Roháč
- Czech Geological Survey, Klárov 131/3, 118 21 Praha, Czech Republic
| | - Petr Kycl
- Czech Geological Survey, Klárov 131/3, 118 21 Praha, Czech Republic
| | - Jana Janderková
- Czech Geological Survey, Leitnerova 22, 658 69 Brno, Czech Republic
| |
Collapse
|
10
|
Joshi NC, Rawat BS, Semwal P, Kumar N. Effective removal of highly toxic Pb 2+ and Cd 2+ ions using reduced graphene oxide, polythiophene, and silica-based nanocomposite. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2127752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
| | - B. S. Rawat
- Department of Physics, Uttaranchal University, Dehradun, India
| | - Prashant Semwal
- Department of Physics, Uttaranchal University, Dehradun, India
| | - Niraj Kumar
- Division of Research & Innovation, Uttaranchal University, Dehradun, India
| |
Collapse
|
11
|
Perspective on the heavy metal pollution and recent remediation strategies. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 3:100166. [DOI: 10.1016/j.crmicr.2022.100166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
|
12
|
Chowdhury IR, Chowdhury S, Mazumder MAJ, Al-Ahmed A. Removal of lead ions (Pb 2+) from water and wastewater: a review on the low-cost adsorbents. APPLIED WATER SCIENCE 2022; 12:185. [PMID: 35754932 PMCID: PMC9213643 DOI: 10.1007/s13201-022-01703-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 05/27/2022] [Indexed: 05/31/2023]
Abstract
The presence of lead compounds in the environment is an issue. In particular, supply water consumption has been reported to be a significant source of human exposure to lead compounds, which can pose an elevated risk to humans. Due to its toxicity, the International Agency for Research on Cancer and the US Environmental Protection Agency (USEPA) have classified lead (Pb) and its compounds as probable human carcinogens. The European Community Directive and World Health Organization have set the maximum acceptable lead limits in tap water as 10 µg/L. The USEPA has a guideline value of 15 µg/L in drinking water. Removal of lead ions from water and wastewater is of great importance from regulatory and health perspectives. To date, several hundred publications have been reported on the removal of lead ions from an aqueous solution. This study reviewed the research findings on the low-cost removal of lead ions using different types of adsorbents. The research achievements to date and the limitations were investigated. Different types of adsorbents were compared with respect to adsorption capacity, removal performances, sorbent dose, optimum pH, temperature, initial concentration, and contact time. The best adsorbents and the scopes of improvements were identified. The adsorption capacity of natural materials, industrial byproducts, agricultural waste, forest waste, and biotechnology-based adsorbents were in the ranges of 0.8-333.3 mg/g, 2.5-524.0 mg/g, 0.7-2079 mg/g, 0.4-769.2 mg/g, and 7.6-526.0 mg/g, respectively. The removal efficiency for these adsorbents was in the range of 13.6-100%. Future research to improve these adsorbents might assist in developing low-cost adsorbents for mass-scale applications.
Collapse
Affiliation(s)
- Imran Rahman Chowdhury
- Department of Civil and Environmental Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| | - Shakhawat Chowdhury
- Department of Civil and Environmental Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
- Interdisciplinary Research Center for Construction and Building Materials, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| | - Mohammad Abu Jafar Mazumder
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| | - Amir Al-Ahmed
- Interdisciplinary Research Center for Renewable Energy and Power Systems, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| |
Collapse
|
13
|
Li Y, Dong Z, Feng D, Zhang X, Jia Z, Fan Q, Liu K. Study on the risk of soil heavy metal pollution in typical developed cities in eastern China. Sci Rep 2022; 12:3855. [PMID: 35264659 PMCID: PMC8907225 DOI: 10.1038/s41598-022-07864-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 02/25/2022] [Indexed: 11/09/2022] Open
Abstract
Enrichment of heavy metals in urban soils has become a major regional environmental risk. At present, research on the soil heavy metals in cities lacks risk spatial correlation analyses between different heavy metals, and there is a relative lack of assessments of the ecological and health risks. We selected Wuxi, a typical developed city of eastern China, collected and tested the contents of heavy metals in the urban soils of Wuxi in May 2020. Combined with Pb isotope analysis, ecological and health risk assessment, we found that the high heavy metal concentrations in Wuxi are mainly located in the central and western regions, and that the changes in spatial fluctuation are relatively small. The Pb isotopes in the urban soils of Wuxi are distributed in areas, such as those are related to coal combustion, automobile exhaust and urban garbage, indicating that the heavy metals in the urban soils of Wuxi are affected by human activities such as coal combustion and automobile exhaust. The average value of the potential ecological risk index of soil heavy metal Cd is 80.3 (the threshold: 40), which represents a high-risk state. Whether adults or children, the risk of soil heavy metals via ingestion is much higher than that through skin exposure. High health risk values are present in the central area of Wuxi and decrease in a ring-shaped pattern, which is similar to the population distribution of Wuxi and greatly increases the potential risk from soil heavy metals, which should be given close attention. We should develop and use clean energy to replace petroleum fossil fuels, especially in densely populated areas. This study provides technical support for the prevention and control of urban heavy metal pollution.
Collapse
Affiliation(s)
- Yan Li
- Collaborative Innovation Center of Sustainable Forestry, Nanjing Forestry University, Nanjing, Jiangsu, China. .,Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, Jiangsu, China. .,Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, Shanghai, China.
| | - Zhen Dong
- Collaborative Innovation Center of Sustainable Forestry, Nanjing Forestry University, Nanjing, Jiangsu, China
| | - Dike Feng
- Collaborative Innovation Center of Sustainable Forestry, Nanjing Forestry University, Nanjing, Jiangsu, China
| | - Xiaomian Zhang
- Zhejiang Academy of Forestry Sciences, Hangzhou, Zhejiang, China
| | - Zhenyi Jia
- School of Geography and Ocean Science, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, China
| | - Qingbin Fan
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Ke Liu
- School of Geography and Ocean Science, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, China
| |
Collapse
|
14
|
Kuwer P, Yadav A, Labhasetwar PK. Adsorption of cupric, cadmium and cobalt ions from the aqueous stream using the composite of iron(II,III) oxide and zeolitic imidazole framework-8. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:2288-2303. [PMID: 34810312 DOI: 10.2166/wst.2021.452] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In recent research, the composite of Fe3O4 and metal-organic frameworks have shown great potential in removing potentially toxic metals from water. We conducted the adsorption studies of potentially toxic metal ions (Cu2+, Co2+ and Cd2+) using the composite of Fe3O4 and zeolitic imidazole framework-8 (Fe3O4@ZIF-8) for the first time. The solvothermal technique was used to synthesize the Fe3O4. The magnetic ZIF-8 offers high thermal stability, greater adsorption surface, good removability, and high chemical and thermal stability. Characterization techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR) were used to characterize the synthesized samples. The SEM and XRD results revealed the high purity and structural integrity of ZIF-8 crystallites. To remove potentially toxic metals (Cu2+, Co2+ and Cd2+), the influence of adsorbent dosage, contact time, pH, and adsorbate concentration on the adsorption performance of Fe3O4@ZIF-8 was investigated. The Langmuir isotherm accurately represented the adsorption processes, with absorption magnitudes of Fe3O4@ZIF-8 determined to be 46.82 mg g-1, 71.29 mg g-1 and 54.49 mg g-1 for Cu2+, Co2+ and Cd2+, respectively. According to the adsorption mechanism analysis, the primary Cu2+, Co2+ and Cd2+ removal methods of Fe3O4@ZIF-8 were ion exchange and coordination bonds. The uptake capacity of Cu2+, Co2+ and Cd2+ solution by Fe3O4@ZIF-8 were not significantly affected by the presence of counter ions. The material exhibited superior regenerative properties for Cu2+, Co2+ and Cd2+ ions from water for up to three cycles. This study concluded that the Fe3O4@ZIF-8 could be a viable candidate for eliminating potentially toxic metals (Cu2+, Co2+ and Cd2+).
Collapse
Affiliation(s)
- Pushpmala Kuwer
- Department of Chemistry, Institute for Excellence in Higher Education, Bhopal 462016, India; Membrane Science and Separation Technology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, India E-mail:
| | - Anshul Yadav
- Membrane Science and Separation Technology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, India E-mail:
| | - Pawan Kumar Labhasetwar
- Water Technology and Management Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, India
| |
Collapse
|
15
|
Cherono F, Mburu N, Kakoi B. Adsorption of lead, copper and zinc in a multi-metal aqueous solution by waste rubber tires for the design of single batch adsorber. Heliyon 2021; 7:e08254. [PMID: 34765777 PMCID: PMC8571509 DOI: 10.1016/j.heliyon.2021.e08254] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 11/23/2022] Open
Abstract
Heavy metal pollution has emerged as one of the most serious environmental challenges facing the world today. The removal of heavy metals from the effluent is of special environmental concern because of their toxicity and persistence in nature. This study presents the suitability of activated carbon from waste rubber tire as a low-cost adsorbent for multiple adsorption of copper, lead and zinc from wastewater. The adsorbent removed heavy metal ions effectively from solution medium in the order of copper > lead > Zinc. The adsorption process was rapid with all metals reaching equilibrium within 120 min. The optimum pH for Lead was achieved at 5 and 6 for copper and Zinc. The removal of heavy metals was discovered to increase with adsorbent dosage and contact time and reduced with initial concentration. The adsorption of multiple heavy metals was modeled using Freundlich and Langmuir adsorption isotherms to assess the experimental findings. The equilibrium data better fitted to the Langmuir isotherm with regression coefficient (R2) of 0.9831, 0.9992 and 0.9953 for lead, copper and zinc respectively. The maximum adsorption capacities (Qmax) at equilibrium were 9.6805 mg/g, 12.4378 mg/g and 4.9950 mg/g for Lead, Copper and Zinc respectively. The adsorption kinetics indicated that pseudo-second-order kinetic model described well the sorption mechanism for multiple adsorption of heavy metals with R2 of more than 0.99 for all metal ions. An empirical model for predicting and designing of a single batch adsorber for 95 % multiple heavy metal ion removal at any given initial heavy metal ion concentration and effluent volume was further developed using activated carbon from waste rubber tires. Waste rubber tire Activated carbon demonstrated an ability for the treatment of wastewater containing these heavy metals in multimetal solutions.
Collapse
Affiliation(s)
- Faith Cherono
- Civil and Environmental Engineering, Pan African University Institute for Basic Sciences, Technology and Innovation, Jomo Kenyatta University of Agriculture and Technology, P.O Box 62000-00200, Nairobi, Kenya
| | - Njenga Mburu
- Department of Civil Engineering, Dedan Kimathi University of Technology, Private Bag - 10143, Dedan Kimathi
| | - Beatrice Kakoi
- Department of Civil, Construction and Environmental Engineering, Jomo Kenyatta University of Agriculture and Technology, P.O Box 62000-00200, Nairobi, Kenya
| |
Collapse
|
16
|
Electrospun Polyacrylonitrile/Lignin/Poly(Ethylene Glycol)-Based Porous Activated Carbon Nanofiber for Removal of Nickel(II) Ion from Aqueous Solution. Polymers (Basel) 2021; 13:polym13203590. [PMID: 34685349 PMCID: PMC8537280 DOI: 10.3390/polym13203590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/07/2021] [Accepted: 09/10/2021] [Indexed: 12/18/2022] Open
Abstract
The issue of heavy metal contamination has caused a great deal of concern among water quality experts today, as it contributes to water pollution. Activated carbon nanofibers (ACNFs) showed a significant ability in removing heavy metals from the wastewater. In this study, polyacrylonitrile (PAN) was blended and electrospun with an abundant and inexpensive biopolymer, lignin and a water soluble polymer, poly(ethylene glycol) (PEG), by using an electrospinning technique to form nanofibers. The electrospun nanofibers were then investigated as a precursor for the production of porous ACNFs to study the removal of nickel(II) ions by adsorption technique. PEG was added to act as a porogen and to create the porous structure of carbon nanofibers (CNFs). CNFs were prepared by thermal treatment of the electrospun nanofibers and followed by activation of CNFs by thermal and acid treatment on CNFs. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) spectral analysis of the ACNFs showed a strong absorption peak of the C-O functional group, indicating the increase in the oxygenated compound. Field emission scanning electron microscopy (FESEM) images concluded that the ACNFs have more porous and compact fibers with a smaller fiber diameter of 263 ± 11 nm, while the CNFs are less compact and have slightly larger fiber diameter of 323 ± 6 nm. The adsorption study showed that the ACNFs possessed a much higher adsorption capacity of 18.09 mg/g compared with the CNFs, which the amount adsorbed was achieved only at 2.7 mg/g. The optimum adsorption conditions that gave the highest percentage of 60% for nickel(II) ions removal were 50 mg of adsorbent dosage, 100 ppm of nickel(II) solution, pH 3, and a contact time of 60 min. The study demonstrated that the fabrication of ACNFs from PAN/lignin/PEG electrospun nanofibers have potential as adsorbents for the removal of heavy metal contaminants.
Collapse
|
17
|
Adsorption Behavior of Lead Ions from Wastewater on Pristine and Aminopropyl-Modified Blast Furnace Slag. WATER 2021. [DOI: 10.3390/w13192735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The potential possibility of blast furnace slag as a low-cost adsorbent to remove lead ions from wastewater was investigated in detail in the present work. Both single factor experiment and orthogonal experiment were performed to reveal the effect of pH, adsorption temperature, contact time and initial concentration of lead ions on the adsorption performance of pristine slag. In order to make clear the correlation between the lead ion adsorption performance and the structure of slag, solid state nuclear magnetic resonance (NMR) was conducted to reveal the network structure and X-ray fluorescence (XRF) was used to calculate the nonbridging oxygen in the network-forming tetrahedra. For the purpose of improving the adsorption performance, γ-aminopropyltriethoxysilane (APTES) was adopted to modify the slag via post-grafting method. The results show that the slag is predominately composed of SiO2, Al2O3, CaO and MgO, exhibiting an amorphous network structure based on SiO4 and AlO4 tetrahedra. The conditions for adsorption can be optimized as follows: a pH of 7, an adsorption temperature of 60 °C, a contact time of 120 min and an initial lead ion concentration of 40 mg·L−1. Under the optimal conditions, a removal rate of 99.98% and an adsorption capacity of 49.99 mg·g−1 are obtained for the pristine slag. The adsorption complies with the Langmuir model thermodynamically and conforms to the pseudo-second order model kinetically. It is noted that aminopropyl-modification has considerably enhanced the removal rate of lead ions from 20.71 to 64.32% and the adsorption capacity from 29.01 to 96.48 mg·g−1 since amino groups (-NH2) are more inclined to form a complex with lead ions than hydroxyl groups due to the higher nucleophilicity of amino groups than that of hydroxyl groups. However, it is necessary to develop more low-cost modification agents in the future work.
Collapse
|
18
|
Steel Slag and Autoclaved Aerated Concrete Grains as Low-Cost Adsorbents to Remove Cd2+ and Pb2+ in Wastewater: Effects of Mixing Proportions of Grains and Liquid-to-Solid Ratio. SUSTAINABILITY 2021. [DOI: 10.3390/su131810321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study investigated the applicability of industrial by-products such as steel slag (SS) and autoclaved aerated concrete (AAC) grains (<0.105, 0.105–2, 2–4.75 mm) as low-cost adsorbents for simultaneous removal of Cd2+ and Pb2+ in wastewater. A series of batch adsorption experiments was carried out in single and binary-metal solutions of Cd2+ and Pb2+ by changing the mixing proportions of SS and AAC grains. In addition, the effect of the liquid-to-solid ratio (L/S) on the removal of Cd2+ and Pb2+ in multi-metal solution was examined. Results showed that SS grains had a high affinity with Cd2+ in the single solution, while AAC grains had an affinity with Pb2+. In the binary solution, the mixtures of SS and AAC grains removed both Cd2+ and Pb2+ well; especially, the tested adsorbents of SS+AAC [1:1] and SS+AAC [1:4] mixtures achieved approximately 100% removal of both metals. Based on the results in the multi-metal solutions, the metal removal % and selectivity sequence varied depending on the mixed proportions of SS and AAC grains and L/S values. It was found that the SS+AAC [1:1] mixture of SS and AAC grains showed 100% removals of Cd2+, Pb2+, Cu2+, Ni2+, and Zn2+ simultaneously at L/S = 10 and 60.
Collapse
|
19
|
Elmes VK, Hurt AP, Coleman NJ. Mixed-Phase Ion-Exchangers from Waste Amber Container Glass. MATERIALS 2021; 14:ma14174887. [PMID: 34500976 PMCID: PMC8432655 DOI: 10.3390/ma14174887] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/19/2021] [Accepted: 08/24/2021] [Indexed: 11/16/2022]
Abstract
This study investigated the one-pot hydrothermal synthesis of mixed-phase ion-exchangers from waste amber container glass and three different aluminium sources (Si/Al = 2) in 4.5 M NaOH(aq) at 100 °C. Reaction products were characterised by X-ray diffraction analysis, Fourier transform infrared spectroscopy, 27Al and 29Si magic angle spinning nuclear magnetic resonance spectroscopy and scanning electron microscopy at 24, 48 and 150 h. Nitrated forms of cancrinite and sodalite were the predominant products obtained with reagent grade aluminium nitrate (Al(NO3)3∙9H2O). Waste aluminium foil gave rise to sodalite, tobermorite and zeolite Na-P1 as major phases; and the principal products arising from amorphous aluminium hydroxide waste were sodalite, tobermorite and zeolite A. Minor proportions of the hydrogarnet, katoite, and calcite were also present in each sample. In each case, crystallisation was incomplete and products of 52, 65 and 49% crystallinity were obtained at 150 h for the samples prepared with aluminium nitrate (AN-150), aluminium foil (AF-150) and amorphous aluminium hydroxide waste (AH-150), respectively. Batch Pb2+-uptake (~100 mg g-1) was similar for all 150-h samples irrespective of the nature of the aluminium reagent and composition of the product. Batch Cd2+-uptakes of AF-150 (54 mg g-1) and AH-150 (48 mg g-1) were greater than that of AN-150 (36 mg g-1) indicating that the sodalite- and tobermorite-rich products exhibited a superior affinity for Cd2+ ions. The observed Pb2+- and Cd2+-uptake capacities of the mixed-product ion-exchangers compared favourably with those of other inorganic waste-derived sorbents reported in the literature.
Collapse
|
20
|
Esfandiar N, Suri R, McKenzie ER. Simultaneous removal of multiple polycyclic aromatic hydrocarbons (PAHs) from urban stormwater using low-cost agricultural/industrial byproducts as sorbents. CHEMOSPHERE 2021; 274:129812. [PMID: 33582536 DOI: 10.1016/j.chemosphere.2021.129812] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 01/07/2021] [Accepted: 01/27/2021] [Indexed: 06/12/2023]
Abstract
The potential of five low-cost and globally available sorbents, including three raw waste products - waste tire crumb rubber (WTCR), coconut coir fiber (CCF) and blast furnace slag (BFS) - and two modified materials - biochar (BC) and iron coated biochar (FeBC) - were evaluated for removing a mixture of polycyclic aromatic hydrocarbons (PAHs): pyrene (PYR), phenanthrene (PHE), acenaphthylene (ACY) and naphthalene (NAP) from simulated stormwater. The physicochemical characteristics of the sorbents were assessed by BET-N2 surface area, CHN elemental analysis, FTIR and scanning electron microscope (SEM-EDS). The experimental data were well described by both linear and Freundlich isotherm and pseudo-second order kinetic models. The adsorption rate was mainly controlled by the film diffusion mass transfer mechanism. The magnitude of PAHs partition coefficients (Kd) followed the order of BC > FeBC > WTCR > CCF ≫ BFS, ranging from 80 to 390,000 L/kg. The sorption Kd values were positively correlated with both aromaticity of sorbents and octanol-water partition coefficients (Kow) of PAHs. Solution ionic strength and pH did not have significant effects on the sorption of PAHs by all sorbents. In contrast, humic acid, as dissolved organic carbon, decreased sorption capacities of WTCR and CCF, and increased sorption efficiency of BFS, which was confirmed with field-collected real stormwater. The hydrophobic π-π interactions were the main mechanism for the sorption of PAHs by various sorbents. These findings are promising for future development of cost-effective sorption filters for removal of hydrophobic organic pollutants from urban stormwater runoff.
Collapse
Affiliation(s)
- Narges Esfandiar
- Department of Civil and Environmental Engineering, Temple University, Philadelphia, PA, 19122, United States
| | - Rominder Suri
- Department of Civil and Environmental Engineering, Temple University, Philadelphia, PA, 19122, United States
| | - Erica R McKenzie
- Department of Civil and Environmental Engineering, Temple University, Philadelphia, PA, 19122, United States.
| |
Collapse
|
21
|
Mohammed D, Al-Malack MH, Chanbasha B. Sulfamic acid functionalized slag for effective removal of organic dye and toxic metal from the aqueous samples. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.08.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
22
|
Madan S, Thapa U, Tiwari S, Tiwari SK, Jakka SK, Soares MJ. Designing of a nanoscale zerovalent iron@fly ash composite as efficient and sustainable adsorbents for hexavalent chromium (Cr(VI)) from water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:22474-22487. [PMID: 33415643 DOI: 10.1007/s11356-020-11692-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 11/16/2020] [Indexed: 06/12/2023]
Abstract
The present study encompasses a unique concept involving the formation of core-shell particles with surface-activated fly ash (FA) as core and nanoscale zerovalent iron (nZVI) particles as shell, which not only imparts high adsorption efficiency for Cr(VI) but also contributes to fruitful utilization of FA while overcoming the drawbacks associated with ZVI nanoparticles (aggregation, rapid oxidation and less durability). The otherwise inert surface of FA has been modified and activated to achieve a uniform and stable layer of nZVI over FA. The functionalized particles were studied using FE-SEM/EDAX, HR-TEM, XRD and FT-IR studies for its physical, functional and morphological characteristics. The results indicate the strong adsorption ability of nZVI@FA particles, with 100% removal efficiency within 10 min at low initial concentrations of Cr(VI), which is appreciably higher than that of pure fly ash (26%) after 60 min of reaction. Besides, the so-formed structure of composite aids to improve its life, as the synthesized nZVI@FA particles could be efficiently regenerated and reused up to 5 subsequent adsorption-desorption cycles, which is in contrast with the ability of fly ash considering its low desorption potential. Hence, the composite material proves to be an effective and sustainable alternative for treatment of a waste using a waste.
Collapse
Affiliation(s)
- Shubhangi Madan
- Amity Institute of Applied Sciences, Amity University, Noida, 201303, India
| | - Urvashi Thapa
- Amity Institute of Applied Sciences, Amity University, Noida, 201303, India
| | - Sangeeta Tiwari
- Amity Institute of Applied Sciences, Amity University, Noida, 201303, India.
| | | | | | | |
Collapse
|
23
|
Hussain T, Hussain AI, Chatha SAS, Ali A, Rizwan M, Ali S, Ahamd P, Wijaya L, Alyemeni MN. Synthesis and Characterization of Na-Zeolites from Textile Waste Ash and Its Application for Removal of Lead (Pb) from Wastewater. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18073373. [PMID: 33805146 PMCID: PMC8037912 DOI: 10.3390/ijerph18073373] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/24/2021] [Accepted: 03/03/2021] [Indexed: 12/16/2022]
Abstract
Massive production of carcinogenic fly ash waste poses severe threats to water bodies due to its disposal into drains and landfills. Fly ash can be a source of raw materials for the synthesis of adsorbents. Rag fly ash as a new class of raw materials could be a cheap source of Al and Si for the synthesis of Na-zeolites. In this work, NaOH activation, via a prefusion- and postfusion-based hydrothermal strategy, was practiced for the modification of rag fly ash into Na-zeolite. Morphology, surface porosity, chemical composition, functionality, mineral phases, and crystallinity, in conjunction with ion exchangeability of the tailored materials, were evaluated by SEM, ICP-OES, XRF, FTIR, XRD, and cation exchange capacity (CEC) techniques. Rag fly ash and the synthesized Na-zeolites were applied for the removal of Pb (II) from synthetic wastewater by varying the reaction conditions, such as initial metal ion concentration, mass of adsorbent, sorption time, and pH of the reaction medium. It was observed that Na-zeolite materials (1 g/100 mL) effectively removed up to 90–98% of Pb (II) ions from 100 mg/L synthetic solution within 30 min at pH ≈ 8. Freundlich adsorption isotherm favors the multilayer heterogeneous adsorption mechanism for the removal of Pb (II). It is reasonable to conclude that recycling of textile rag fly ash waste into value-added Na-zeolites for the treatment of industrial wastewater could be an emergent move toward achieving sustainable and green remediation.
Collapse
Affiliation(s)
- Tabassum Hussain
- Department of Applied Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan;
| | - Abdullah Ijaz Hussain
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (A.I.H.); (S.A.S.C.)
| | - Shahzad Ali Shahid Chatha
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (A.I.H.); (S.A.S.C.)
| | - Adnan Ali
- Department of Physics, Government College University Faisalabad, Faisalabad 38000, Pakistan;
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad 38000, Pakistan;
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad 38000, Pakistan;
- Department of Biological Sciences and Technology, China Medical University, Taichung 40402, Taiwan
- Correspondence: or
| | - Parvaiz Ahamd
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (P.A.); (L.W.); (M.N.A.)
| | - Leonard Wijaya
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (P.A.); (L.W.); (M.N.A.)
| | - Mohammed Nasser Alyemeni
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (P.A.); (L.W.); (M.N.A.)
| |
Collapse
|
24
|
Yamaguchi S, Hongo T. Synthesis of metaettringite from blast furnace slag and evaluation of its boron adsorption ability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:15070-15075. [PMID: 33230798 DOI: 10.1007/s11356-020-11028-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
Blast furnace slag (BFS) is generated as a by-product in the ironmaking process, and hence, the development of a recycling system for BFS waste is important. In this study, the calcium component of BFS obtained from a steel company in Japan was successfully used as raw material of the synthesis of metaettringite. Metaettringite has been recently considered for as an adsorbent for boron, which is toxic to humans and animals. The BFS used was amorphous, and mainly consisted of CaO, SiO2, Al2O3, and MgO; in particular, it contained 42.82 mass % CaO. The X-ray diffraction pattern and Fourier transform infrared spectrum of the synthesized sample indicated the formation of metaettringite. Field-emission scanning electron microscopy observations revealed its needle-like morphology. The synthesized metaettringite adsorbed 1.189 mg-B/g-adsorbent in 240 min, which was approximately 25 times greater than that achieved using the parent BFS. The metaettringite can reduce the boron concentration to below the uniform effluent standard in industrial wastewater in Japan (16 mg/L).
Collapse
Affiliation(s)
- Shie Yamaguchi
- Department of Life & Green Chemistry, Faculty of Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama, 369-0293, Japan
| | - Teruhisa Hongo
- Department of Life & Green Chemistry, Faculty of Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama, 369-0293, Japan.
| |
Collapse
|
25
|
Interactions of Cd2+, Co2+ and MoO42− Ions with Crushed Concrete Fines. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5020042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Construction and demolition activities generate approximately two thirds of the world’s waste, with concrete-based demolition material accounting for the largest proportion. Primary aggregates are recovered and reused, although the cement-rich fine fraction is underutilised. In this study, single metal batch sorption experiments confirmed that crushed concrete fines (CCF) are an effective sorbent for the maximum exclusion of 45.2 mg g−1 Cd2+, 38.4 mg g−1 Co2+ and 56.0 mg g−1 MoO42− ions from aqueous media. The principal mechanisms of sorption were determined, by scanning electron microscopy of the metal-laden CCF, to be co-precipitation with Ca2+ ions released from the cement to form solubility limiting phases. The removal of Co2+ and MoO42− ions followed a zero-order reaction and that of Cd2+ was best described by a pseudo-second-order model. The Langmuir model provided the most appropriate description of the steady state immobilisation of Cd2+ and Co2+, whereas the removal of MoO42− conformed to the Freundlich isotherm. Long equilibration times (>120 h), loose floc formation and high pH are likely to limit the use of CCF in many conventional wastewater treatment applications; although, these properties could be usefully exploited in reactive barriers for the management of contaminated soils, sediments and groundwater.
Collapse
|
26
|
Adsorption Performance of Modified Fly Ash for Copper Ion Removal from Aqueous Solution. WATER 2021. [DOI: 10.3390/w13020207] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The initial characteristics of Romanian fly ash from the CET II Holboca power plant show the feasibility of its application for the production of a new material with applicability in environmental decontamination. The material obtained was characterized using standard techniques: scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), instrumental neutron activation analysis (INAA), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), the Brunauer–Emmett–Teller (BET) surface area, and thermogravimetric differential thermal analysis (TG-DTA). The adsorption capacity of the obtained material was evaluated in batch systems with different values of the initial Cu(II) ion concentration, pH, adsorbent dose, and contact time in order to optimize the adsorption process. According to the experimental data presented in this study, the adsorbent synthesized has a high adsorption capacity for copper ions (qmax = 27.32–58.48 mg/g). The alkali treatment of fly ash with NaOH improved the adsorption capacity of the obtained material compared to that of the untreated fly ash. Based on the kinetics results, the adsorption of copper ions onto synthesized material indicated the chemisorption mechanism. Notably, fly ash can be considered an important beginning in obtaining new materials with applicability to wastewater treatment.
Collapse
|
27
|
Laterite clay-based geopolymer as a potential adsorbent for the heavy metals removal from aqueous solutions. JOURNAL OF SAUDI CHEMICAL SOCIETY 2020. [DOI: 10.1016/j.jscs.2020.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
28
|
Microstructure and Pb2+ Adsorption Properties of Blast Furnace Slag and Fly Ash based Geopolymers. MINERALS 2020. [DOI: 10.3390/min10090808] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this study, a blast furnace slag (BFS) and fly ash (FA) based adsorbent geopolymer to be used for removing Pb2+ from aqueous solutions were synthesized using the hydrothermal method at 60 °C for 24 h, and then cured at 25 °C for another six days. The alkali activator applied in this work was a combination of sodium hydroxide and sodium silicate solutions at a mass ratio of 2. The geopolymer slurry was adjusted to a Si/Al molar ratio of 3. A BFS-based geopolymer (GS) having a specific area of 23.56 m2/g and pore size and volume of 7.8 nm and 73 cm3/kg, respectively, surpassed the raw material surface by approximately 13-fold. An FA-based geopolymer (GA) having a specific area of 35.97 m2/g and a size and porous volume of 9 nm and 124 nm, respectively, surpassed the raw material surface by approximately 23-fold. In addition, GS and GA showed a cation exchange capacity (CEC) of 241.30 and 286.96 Meq/100 g, respectively. X-ray diffraction (XRD) determined sample crystallinity and it was proven by scanning electron microscopy (SEM), showing that both geopolymers were constituted of unreacted particles surrounded by amorphous and semi-amorphous products. Through Fourier transform infrared spectroscopy (FTIR), a band that was assigned to the asymmetric stretching vibration of Si-O-M (M = Na+ and/or Ca2+) non-bridging oxygen type was observed, which suggested that Na and Ca could serve as exchangeable ions in the ionic exchange process. Adsorption test data indicated that good adsorption was obtained when a neutral pH was used at room temperature, and the adsorption isotherm showed that GA had more adsorption sites than GS, which meant greater maximum adsorption capacity.
Collapse
|
29
|
Baraud F, Zaiter A, Porée S, Leleyter L. New approach for determination of Cd, Cu, Cr, Ni, Pb, and Zn in sewage sludges, fired brick, and sediments using two analytical methods by microwave-induced plasma optical spectrometry and induced coupled plasma optical spectrometry. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03220-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
30
|
Eco-Friendly Materials Obtained by Fly Ash Sulphuric Activation for Cadmium Ions Removal. MATERIALS 2020; 13:ma13163584. [PMID: 32823715 PMCID: PMC7476049 DOI: 10.3390/ma13163584] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/09/2020] [Accepted: 08/11/2020] [Indexed: 01/02/2023]
Abstract
Wastes are the sustainable sources of raw materials for the synthesis of new adsorbent materials. This study has as objectives the advanced capitalization of fly ash, by sulphuric acid activation methods, and testing of synthesized materials for heavy metals removal. Based on the previous studies, the synthesis parameters were 1/3 s/L ratio, 80 °C temperature and 10% diluted sulphuric acid, which permitted the synthesis of an eco-friendly adsorbent. The prepared adsorbent was characterized through SEM, EDX, FTIR, XRD and BET methods. Adsorption studies were carried out for the removal of Cd2+ ions, recognized as ions dangerous for the environment. The effects of adsorbent dose, contact time and metal ion concentrations were studied. The data were tested in terms of Langmuir and Freundlich isotherm and it was found that the Langmuir isotherm fitted the adsorption with a maximum adsorption capacity of 28.09 mg/g. Kinetic data were evaluated with the pseudo-first-order model, the pseudo-second-order model and the intraparticle diffusion model. The kinetics of cadmium adsorption into eco-friendly material was described with the pseudo-second-order model, which indicated the chemisorption mechanism.
Collapse
|
31
|
Gao S, Wang Z, Wu Q, Zeng J. Multivariate statistical evaluation of dissolved heavy metals and a water quality assessment in the Lake Aha watershed, Southwest China. PeerJ 2020. [DOI: 10.7717/peerj.9660] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Heavy metals are of public concern in aquatic ecosystems due to their growing release from industries and mining activities. This study investigated the sources, temporal-spatial distributions and water quality of dissolved heavy metals (Mn, Co, Al, Ni, Ba, V, Sb, Fe, Sr) in the Lake Aha watershed, an area under the influence of sewage and acid mining drainage. These heavy metals displayed significant spatial and temporal variabilities. The water quality index results (WQI values ranged from 3.21 to 15.64) and health risk assessment (all hazard indexes are below 1) indicated that dissolved heavy metals in this study pose a low risk for human health. Correlation analysis and principal component analysis indicated that Fe and Sr mainly presented a natural geological feature in the study area, and Mn, Co, Al and Ni were influenced by the acid coal mine drainage, whereas Ba, V and Sb were under the impact of local industrial or medical activities. This study provides new insights into the risk assessment of heavy metals in small watersheds.
Collapse
Affiliation(s)
- Shilin Gao
- Key Laboratory of Karst Geological Resources and Environment, Ministry of Education, Guizhou University, Guiyang, Guizhou Province, China
| | - Zhuhong Wang
- School of Public Health, Key Laboratory of Environmental Pollution and Disease Monitoring of Ministry of Education, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Qixin Wu
- Key Laboratory of Karst Geological Resources and Environment, Ministry of Education, Guizhou University, Guiyang, Guizhou Province, China
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou Province, China
| | - Jie Zeng
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, China
| |
Collapse
|
32
|
Panda L, Jena SK, Rath SS, Misra PK. Heavy metal removal from water by adsorption using a low-cost geopolymer. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:24284-24298. [PMID: 32306254 DOI: 10.1007/s11356-020-08482-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 03/16/2020] [Indexed: 06/11/2023]
Abstract
In the present study, a geopolymer from dolochar ash was synthesized and used for the removal of heavy metal ions such as Co(II), Ni(II), Cd(II), and Pb(II) from the aqueous solution through the adsorption process. The geopolymer was characterized by a series of analytical techniques. The XRD pattern revealed the loss of dolochar ash crystallinity on geoploymerization. The peak at 982 cm-1 observed in the FTIR spectrum due to Si-O-Si and Si-O-Al bonds confirmed the formation of geopolymer. BET surface area analyses indicated the mesoporous nature of the sample. The adsorption experiments revealed the higher removal efficiency of the geopolymer in comparison with the feed dolochar ash. The effects of different experimental factors such as pH, temperature, reaction time, and initial concentration of metal ions on metal uptake efficiency were evaluated to optimize the removal efficiency. The maximum removal of 98-99% was achieved when the pH, temperature, and initial metal ion concentration were 7.8, 343 K, and 10 ppm, respectively. The adsorption process followed the pseudo-second-order rate equation and validated the Langmuir adsorption model. Thermodynamic parameters such as ΔH, ΔS, and ΔG confirmed that the process to be spontaneous and endothermic. This geopolymer was found to compete efficiently with many adsorbents reported in the literature for water treatment.
Collapse
Affiliation(s)
- Laxmipriya Panda
- Centre of Studies in Surface Science and Technology, School of Chemistry, Sambalpur University, Jyoti Vihar, Burla, Odisha, 768019, India
| | - Sandeep K Jena
- Centre of Studies in Surface Science and Technology, School of Chemistry, Sambalpur University, Jyoti Vihar, Burla, Odisha, 768019, India
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, Odisha, 751013, India
| | - Swagat S Rath
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, Odisha, 751013, India
| | - Pramila K Misra
- Centre of Studies in Surface Science and Technology, School of Chemistry, Sambalpur University, Jyoti Vihar, Burla, Odisha, 768019, India.
| |
Collapse
|
33
|
Ahmad SZN, Wan Salleh WN, Ismail AF, Yusof N, Mohd Yusop MZ, Aziz F. Adsorptive removal of heavy metal ions using graphene-based nanomaterials: Toxicity, roles of functional groups and mechanisms. CHEMOSPHERE 2020; 248:126008. [PMID: 32006836 DOI: 10.1016/j.chemosphere.2020.126008] [Citation(s) in RCA: 131] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/12/2020] [Accepted: 01/21/2020] [Indexed: 05/20/2023]
Abstract
The endless introduction of toxic heavy metals through industrialization has worsened the heavy metal pollution in the environment. Thus, the need for its effective removal has become more crucial than before. Studies on graphene-based nanomaterials and their use in removing heavy metals are gaining tremendous traction over the past decade. The properties of graphene oxide (GO), such as large surface areas, desired functional groups and excellent mechanical properties are advantageous. Nevertheless, due to its tendency to agglomerate and difficulty in phase separation after treatment, the functionalization of GO using various materials of different surface functional groups is an ongoing study. The surface modification of GO is done by using various materials to introduce heteroatoms, which have high affinity for heavy metals. This review summarizes the utilization of different surface functional groups, such as oxygen-containing, nitrogen-containing, and sulphur-containing functionalized graphene oxide composites in the adsorption of cationic and oxyanionic heavy metals. The toxicity of these heavy metals is also addressed. Furthermore, the interactions between adsorbents and heavy metals which are influenced by pH and surface functional groups, are also discussed in detail. This is followed by the review in adsorption isotherms and kinetics. Future research needs are also offered.
Collapse
Affiliation(s)
- Siti Zu Nurain Ahmad
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia; School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| | - Wan Norharyati Wan Salleh
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia; School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia.
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia; School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| | - Norhaniza Yusof
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia; School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| | - Mohd Zamri Mohd Yusop
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia; School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| | - Farhana Aziz
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia; School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia
| |
Collapse
|
34
|
Ramachandra RH, Devatha CP. Experimental investigation on sludge dewatering using granulated blast furnace slag as skeleton material. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:11870-11881. [PMID: 31981030 DOI: 10.1007/s11356-020-07614-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 01/01/2020] [Indexed: 06/10/2023]
Abstract
The highly compressible nature of sludge and the presence of colloidal particles cause difficulties in sludge dewatering. Reducing the moisture content in secondary sludge is a key factor in reducing the capital costs, operational costs, and transportation costs in wastewater management. This investigation concerned the combined utilization of quicklime and granulated blast furnace slag (GBFS) to improve sludge dewatering. The experimental work included the initial characterization of the sludge and granulated blast furnace slag and evaluation of the dewatering ability of the treated sludge (CST, moisture content, turbidity, zeta potential, and heavy metal and biopolymer contents). Optimization using the Box-Behnken design (BBD) was carried out with various operational parameters, and the best performance was found to be at a pH of 10.2, a dose of 0.34 g/g DS, and a contact time of 14 min. A characterization study was carried out by scanning electron microscopy (SEM) in conjunction with EDS, X-ray diffractometry (XRD), and Fourier transform infrared spectroscopy (FTIR) to confirm the structural features (dense), elemental composition, and the presence of different functional groups. Hence, this study concluded that the use of quicklime with granulated blast furnace slag is suitable for conditioning during sludge dewatering. Graphical abstract.
Collapse
|
35
|
Yan SR, Foroughi MM, Safaei M, Jahani S, Ebrahimpour N, Borhani F, Rezaei Zade Baravati N, Aramesh-Boroujeni Z, Foong LK. A review: Recent advances in ultrasensitive and highly specific recognition aptasensors with various detection strategies. Int J Biol Macromol 2020; 155:184-207. [PMID: 32217120 DOI: 10.1016/j.ijbiomac.2020.03.173] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 03/03/2020] [Accepted: 03/19/2020] [Indexed: 12/17/2022]
Abstract
One of the most studied topics in analytical chemistry and physics is to develop bio-sensors. Aptamers are small single-stranded RNA or DNA oligonucleotides (5-25 kDa), which have advantages in comparison to their antibodies such as physicochemical stability and high binding specificity. They are able to integrate with proteins or small molecules, including intact viral particles, plant lectins, gene-regulation factor, growth factors, antibodies and enzymes. The aptamers have reportedly shown some unique characteristics, including long shelf-life, simple modification to provide covalent bonds to material surfaces, minor batch variation, cost-effectiveness and slight denaturation susceptibility. These features led important efforts toward the development of aptamer-based sensors, known as apta-sensors classified into optical, electrical and mass-sensitive based on the signal transduction mode. This review provided a number of current advancements in selecting, development criteria, and aptamers application with the focus on the effect of apta-sensors, specifically for disease-associated analyses. The review concentrated on the current reports of apta-sensors that are used for evaluating different food and environmental pollutants.
Collapse
Affiliation(s)
- Shu-Rong Yan
- Institute of Smart Finance, Yango University, Fuzhou 350015, China
| | | | - Mohadeseh Safaei
- Student Research Committee, School of Public Health, Bam University of Medical Sciences, Bam, Iran
| | - Shohreh Jahani
- Student Research Committee, School of Public Health, Bam University of Medical Sciences, Bam, Iran; Bam University of Medical Sciences, Bam, Iran
| | - Nasser Ebrahimpour
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Fariba Borhani
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Zahra Aramesh-Boroujeni
- Department of Clinical Laboratory, AlZahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Loke Kok Foong
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam.
| |
Collapse
|
36
|
Simultaneous adsorption of heavy metals from water by novel lemon-peel based biomaterial. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2020. [DOI: 10.2478/pjct-2020-0007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Simultaneous adsorption of heavy metals in complex multi metal system is insufficiently explored. This research gives results of key process parameters optimization for simultaneous removal of Cd(II), Co(II), Cr(III), Cu(II), Mn(II), Ni(II) and Pb(II) from aqueous solution (batch system). New lemon peel-based biomaterial was prepared and characterized by infrared spectroscopy with Fourier transformation (FTIR), scanning electron microscopy (SEM), electron dispersive spectroscopy (EDS), while the quantification of metals was made by atomic absorption spectrometry (AAS). Simultaneous removal of seven metals ions was favorable at pH 5 with 300 mg/50 mL solid-liquid phase ratio, within 60 min at room temperature with total obtained adsorption capacity of 46.77 mg g−1. Kinetic modeling showed that pseudo-second order kinetic and Weber-Morris diffusion models best describe the adsorption mechanism of all seven heavy metals onto lemon peel.
Collapse
|
37
|
Ironmaking and Steelmaking Slags as Sustainable Adsorbents for Industrial Effluents and Wastewater Treatment: A Critical Review of Properties, Performance, Challenges and Opportunities. SUSTAINABILITY 2020. [DOI: 10.3390/su12052118] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This paper critically discusses the structure, properties and applications of ironmaking and steelmaking slags and their silicate-based variants as low-cost adsorbents for removing cations and anions from industrial effluents and wastewater. Undoubtedly, the performance of slag-based adsorbents depends on their physical, chemical and phase chemical properties. The presence of crystalline phases, for example, has a significant effect on the adsorption capacity. However, despite their low cost and ubiquity, their chemical and geometric heterogeneity significantly affects the performance and applications of slag-based adsorbents. These challenges notwithstanding, the efficacy of slag-based adsorbents can be significantly enhanced through purposeful activation to increase the specific surface area and density of adsorption sites on the surfaces of adsorbent particles. The synthesis of functionalised adsorbents such as geopolymers, zeolites and layered double hydroxides from silicate and aluminosilicate precursors can also significantly increase the performance of slag-based adsorbents. In addition, the ability to stabilise the dissolved and/or entrained toxic metal species in stable phases in slags, either through controlled post-process fluxing or crystallisation, can significantly enhance the environmental performance of slag-based adsorbents. Most critical in the design of future slag-based adsorbents is the integration of the engineered properties of molten and solidified slags to the recovery and stabilisation of dissolved and/or entrained metals.
Collapse
|
38
|
Sayago UFC, Castro YP, Rivera LRC, Mariaca AG. Estimation of equilibrium times and maximum capacity of adsorption of heavy metals by E. crassipes (review). ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:141. [DOI: https:/doi.org/10.1007/s10661-019-8032-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 12/10/2019] [Indexed: 06/06/2024]
Abstract
AbstractCellulose emerges as an alternative for the treatment of water contaminated with heavy metals due to its abundant biomass and its proven potential in the adsorption of pollutants. The aquatic plant Eichhornia crassipes is an option as raw material in the contribution of cellulose due to its enormous presence in contaminated wetlands, rivers, and lakes. The efficiency in the removal of heavy metals is due to the cation exchange between the hydroxyl groups and carboxyl groups present in the biomass of E. crassipes with heavy metals. Through different chemical and physical transformations of the biomass of E. crassipesThe objective of this review article is to provide a discussion on the different mechanisms of adsorption of the biomass of E. crassipes to retain heavy metals and dyes. In addition to estimating equilibrium, times through kinetic models of adsorption and maximum capacities of this biomass through equilibrium models with isotherms, in order to design one biofilter for treatment systems on a larger scale represented the effluents of a real industry.
Collapse
|
39
|
Sayago UFC, Castro YP, Rivera LRC, Mariaca AG. Estimation of equilibrium times and maximum capacity of adsorption of heavy metals by E. crassipes (review). ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:141. [PMID: 31982980 PMCID: PMC6982627 DOI: 10.1007/s10661-019-8032-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
Cellulose emerges as an alternative for the treatment of water contaminated with heavy metals due to its abundant biomass and its proven potential in the adsorption of pollutants. The aquatic plant Eichhornia crassipes is an option as raw material in the contribution of cellulose due to its enormous presence in contaminated wetlands, rivers, and lakes. The efficiency in the removal of heavy metals is due to the cation exchange between the hydroxyl groups and carboxyl groups present in the biomass of E. crassipes with heavy metals. Through different chemical and physical transformations of the biomass of E. crassipesThe objective of this review article is to provide a discussion on the different mechanisms of adsorption of the biomass of E. crassipes to retain heavy metals and dyes. In addition to estimating equilibrium, times through kinetic models of adsorption and maximum capacities of this biomass through equilibrium models with isotherms, in order to design one biofilter for treatment systems on a larger scale represented the effluents of a real industry.
Collapse
Affiliation(s)
| | - Yineth Pineros Castro
- Fundacion Universitaria Los Libertadores, Cra. 16 #63a-68, Bogotá, Cundinamarca Colombia
- Jorge Tadeo Lozano University, Cra. 4 #22-61, Bogotá, Cundinamarca Colombia
| | - Laura Rosa Conde Rivera
- Fundacion Universitaria Los Libertadores, Cra. 16 #63a-68, Bogotá, Cundinamarca Colombia
- Jorge Tadeo Lozano University, Cra. 4 #22-61, Bogotá, Cundinamarca Colombia
| | | |
Collapse
|
40
|
Tajik S, Beitollahi H, Nejad FG, Safaei M, Zhang K, Van Le Q, Varma RS, Jang HW, Shokouhimehr M. Developments and applications of nanomaterial-based carbon paste electrodes. RSC Adv 2020; 10:21561-21581. [PMID: 35518767 PMCID: PMC9054518 DOI: 10.1039/d0ra03672b] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 05/27/2020] [Indexed: 01/22/2023] Open
Abstract
This review summarizes the progress that has been made in the past ten years in the field of electrochemical sensing using nanomaterial-based carbon paste electrodes. Following an introduction into the field, a first large section covers sensors for biological species and pharmaceutical compounds (with subsections on sensors for antioxidants, catecholamines and amino acids). The next section covers sensors for environmental pollutants (with subsections on sensors for pesticides and heavy metal ions). Several tables are presented that give an overview on the wealth of methods (differential pulse voltammetry, square wave voltammetry, amperometry, etc.) and different nanomaterials available. A concluding section summarizes the status, addresses future challenges, and gives an outlook on potential trends. This review summarizes the progress that has been made in the past ten years in the field of electrochemical sensing using nanomaterial-based carbon paste electrodes.![]()
Collapse
Affiliation(s)
- Somayeh Tajik
- Research Center for Tropical and Infectious Diseases
- Kerman University of Medical Sciences
- Kerman
- Iran
| | - Hadi Beitollahi
- Environment Department
- Institute of Science and High Technology and Environmental Sciences
- Graduate University of Advanced Technology
- Kerman
- Iran
| | - Fariba Garkani Nejad
- Environment Department
- Institute of Science and High Technology and Environmental Sciences
- Graduate University of Advanced Technology
- Kerman
- Iran
| | - Mohadeseh Safaei
- Environment Department
- Institute of Science and High Technology and Environmental Sciences
- Graduate University of Advanced Technology
- Kerman
- Iran
| | - Kaiqiang Zhang
- Jiangsu Key Laboratory of Advanced Organic Materials
- Key Laboratory of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Quyet Van Le
- Institute of Research and Development
- Duy Tan University
- Da Nang 550000
- Vietnam
| | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials
- Department of Physical Chemistry
- Faculty of Science
- Palacky University
- 783 71 Olomouc
| | - Ho Won Jang
- Department of Materials Science and Engineering
- Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Mohammadreza Shokouhimehr
- Department of Materials Science and Engineering
- Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
- Republic of Korea
| |
Collapse
|
41
|
Predominant Mechanisms in the Treatment of Wastewater Due to Interaction of Benzaldehyde and Iron Slag Byproduct. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 17:ijerph17010226. [PMID: 31905605 PMCID: PMC6982317 DOI: 10.3390/ijerph17010226] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 12/25/2019] [Accepted: 12/26/2019] [Indexed: 01/10/2023]
Abstract
Iron slag is a byproduct generated in huge quantities from recycled remnants of iron and steel factories; therefore, the possibility of using this waste in the removal of benzaldehyde from contaminated water offers an excellent topic in sustainability field. Results reveal that the removal efficiency was equal to 85% for the interaction of slag and water contaminated with benzaldehyde at the best operational conditions of 0.3 g/100 mL, 6, 180 min, and 250 rpm for the sorbent dosage, initial pH, agitation time, and speed, respectively with 300 mg/L initial concentration. The maximum uptake capacity of iron slag was 118.25 mg/g which was calculated by the Langmuir model. Physical sorption may be the major mechanism for the removal of benzaldehyde onto iron slag based on the analysis of isotherm and kinetic sorption data and thermodynamically, the process was spontaneous and endothermic. Finally, the X-ray fluorescence spectroscopy (XRF), X-ray diffraction (XRD), Fourier transform infrared (FT-IR), scanning electron microscope (SEM) and energy-dispersive spectroscope (EDS) tests for reactive material certified that the dissolution of calcium oxide can enhance the removal of benzaldehyde by the formation of bridge cations.
Collapse
|
42
|
Fu P, Yang H, Zhang G, Fu P, Li Z. In-Situ Immobilization of Cd-Contaminated Soils Using Ferronickel Slag as Potential Soil Amendment. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 103:756-762. [PMID: 31583424 DOI: 10.1007/s00128-019-02719-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/21/2019] [Indexed: 06/10/2023]
Abstract
The current study investigated the efficiency and mechanisms of in situ immobilization of artificially Cd-contaminated soils with ferronickel slag (FNS). The available Cd content of soil was measured and the modified European Community Bureau of Reference (BCR) sequential extraction procedure (SEP) was adopted to quantify the evolutions of Cd chemical speciation after the immobilization by the FNS. The results showed that the addition of FNS (5%‒15%) remarkably reduced the available Cd content and increased the pH and cation exchange capacity of soils. The passivation rate of Cd increased from 58.13% to 73.25% as the spiked Cd content rose from 10 to 120 mg kg‒1. The BCR SEP test revealed that the FNS addition substantially reduced the acid soluble fraction and increased the residual fraction of Cd, indicating the reduction of mobility and bioavailability of Cd in soils. The chemical precipitation, ion exchange and surface complexation might be involved in in situ immobilization of Cd-contaminated soils by the FNS.
Collapse
Affiliation(s)
- Pingfeng Fu
- School of Civil and Resources Engineering, University of Science & Technology Beijing, Beijing, 100083, China.
| | - Huifen Yang
- School of Civil and Resources Engineering, University of Science & Technology Beijing, Beijing, 100083, China
| | - Ge Zhang
- School of Civil and Resources Engineering, University of Science & Technology Beijing, Beijing, 100083, China
| | - Peng Fu
- School of Civil and Resources Engineering, University of Science & Technology Beijing, Beijing, 100083, China
| | - Zhaofeng Li
- School of Civil and Resources Engineering, University of Science & Technology Beijing, Beijing, 100083, China
| |
Collapse
|
43
|
Wang Q, Li JS, Poon CS. Recycling of incinerated sewage sludge ash as an adsorbent for heavy metals removal from aqueous solutions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 247:509-517. [PMID: 31255965 DOI: 10.1016/j.jenvman.2019.06.115] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/20/2019] [Accepted: 06/25/2019] [Indexed: 06/09/2023]
Abstract
The management of large quantities of incinerated sewage sludge ash (ISSA) is problematic. Environmental and economic benefits can be achieved by using ISSA as an adsorbent for heavy metals removal due to its exceptionally porous structure and active components. In this study, the feasibility of using ISSA to treat heavy metals (Cd(II), Cu(II) and Zn(II)) contaminated waters from both single- and binary-metal systems were investigated. The results showed that the pH of the solution played a pivotal role in the adsorption of heavy metals by ISSA and the optimal pH for the adsorption of these metals was around 6.00. The adsorption process of Cu(II), Cd(II), and Zn(II) in a single-metal system was similar and fast. The equilibrium data followed the Freundlich isotherm model and the corresponding adsorption capacity was 0.13, 0.11 and 0.06 mmol/g, respectively. However, the presence of other competitive metal ions had adverse effects on both the adsorption rate and the adsorption capacity for the target metal ions. The affinity of ISSA towards the metals followed the order of Cu(II) > Cd(II) > Zn(II). The difference in pH value and Ca or Na concentration of the solution after adsorption revealed that cation exchange played a fundamental role in the adsorption of the target metals, while electrostatic attraction and precipitation were insignificant. Over all, the application of ISSA as an adsorbent would be a promising option to both relieve the waste disposal pressure and mitigate the complex heavy metals pollution.
Collapse
Affiliation(s)
- Qiming Wang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; IRSM-CAS/HK PolyU Joint Laboratory on Solid Waste Science, Hung Hom, Kowloon, Hong Kong
| | - Jiang-Shan Li
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; IRSM-CAS/HK PolyU Joint Laboratory on Solid Waste Science, Hung Hom, Kowloon, Hong Kong.
| | - Chi Sun Poon
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; IRSM-CAS/HK PolyU Joint Laboratory on Solid Waste Science, Hung Hom, Kowloon, Hong Kong.
| |
Collapse
|
44
|
Vardhan KH, Kumar PS, Panda RC. A review on heavy metal pollution, toxicity and remedial measures: Current trends and future perspectives. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111197] [Citation(s) in RCA: 500] [Impact Index Per Article: 100.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
45
|
Wang Q, Li JS, Poon CS. Using incinerated sewage sludge ash as a high-performance adsorbent for lead removal from aqueous solutions: Performances and mechanisms. CHEMOSPHERE 2019; 226:587-596. [PMID: 30954893 DOI: 10.1016/j.chemosphere.2019.03.193] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/28/2019] [Accepted: 03/31/2019] [Indexed: 06/09/2023]
Abstract
A substantial amount of ash is produced after the incineration of sewage sludge which is difficult to manage. Its potential use as a cost-effective adsorbent for heavy metals is beneficial to both waste management and wastewater treatment. In this study, the adsorption kinetics, isotherms as well as the factors influencing the adsorption performance were assessed through batch sorption experiments. The results show that incinerated sewage sludge ash (ISSA) was effective in adsorbing Pb(II) from aqueous solution in a wide pH range (3.00-6.00) due to the combined contributions of ion exchange, precipitation and complexation, which was confirmed by systematic investigation through XRD, SEM-EDX, FTIR, XPS and a sequential extraction procedure (SEP) for Pb(II). Nonetheless, the adsorption of Pb(II) by ISSA would be adversely affected by high ionic strength. The sorption process was fast, and the equilibrium data could be well described by the Langmuir model, the maximum uptake capacity for Pb(II) increased with temperature and the calculated adsorption capacities at 298, 308 and 318 K for Pb(II) were 58.28, 60.06 and 62.42 mg/g, respectively. These findings indicate the ISSA can be recognized as a high-performance adsorbent for Pb(II) removal in wastewater treatment applications.
Collapse
Affiliation(s)
- Qiming Wang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, China.
| | - Jiang-Shan Li
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, China.
| | - Chi Sun Poon
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, China.
| |
Collapse
|
46
|
Mourya A, Sinha SK, Mazumdar B. Glassy carbon electrode modified with blast furnace slag for electrochemical investigation of Cu2+ and Pb2+ metal ions. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.082] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
47
|
Yang H, Hu Y, Wang X, Fu W, Tian H, Alam E. Investigation on synthesis of ion-imprinted mesoporous adsorbents by using ultrasound- and microwave-assisted preparation and their dynamic adsorption properties on heavy metals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:10987-10999. [PMID: 30783933 DOI: 10.1007/s11356-019-04436-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
Removal of the heavy metal ions in aqueous solution is an important technology for waste water treatment. The effects of using ultrasonic and microwave on synthesizing Pb2+, Zn2+, and Cu2+ imprinted mesoporous adsorbents (Pb-IMA-UM, Zn-IMA-UM, and Cu-IMA-UM) and their dynamic adsorption properties were studied. The microstructure and composition of the ion-imprinted mesoporous adsorbents were discussed in detail by TEM, FTIR, N2 adsorption-desorption, XRD, and EDS. The pore sizes of mesoporous absorbents were improved more uniformly by using ultrasonic agitation than magnetic stirring. The elution efficiency of imprinting ions can be enhanced by microwave elution. Prepared Pb-IMA-UM, Zn-IMA-UM, and Cu-IMA-UM were used for dynamic adsorption study of heavy metals. The detected optimal feed rate was 20.0 mL/min and the influent concentration was 60 mg/L; the equilibrium adsorption capacities of Pb-IMA-UM, Cu-IMA-UM, and Zn-IMA-UM could reach 198 mg/g, 51.5 mg/g, and 57.3 mg/g, respectively. The dynamic regeneration performance of the adsorbent was also investigated with the Cu-IMA-UM sample. The adsorption rate remained above 89% after five dynamic regeneration experiments. At last, the actual wastewater from an electroplating industry was used as the research object. Three groups of dynamic adsorption coefficient contours of Pb-IMA-UM, Zn-IMA-UM, and Cu-IMA-UM were obtained when influents flowed into three adsorption columns separately. The experimental results showed that an ion-imprinted adsorbent had a much better adsorption capacity of imprinted ions under the various metals mixed conditions.
Collapse
Affiliation(s)
- Hong Yang
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, People's Republic of China.
| | - Yanling Hu
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, People's Republic of China
| | - Xiaoyu Wang
- School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Weng Fu
- School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Huijuan Tian
- School of Geomatics and Marine Information, Huaihai Institute of Technology, Lianyungang, 222005, People's Republic of China
| | - Easar Alam
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, People's Republic of China
| |
Collapse
|
48
|
Blaisi NI, Zubair M, Ali S, Kazeem TS, Manzar MS, Al-Kutti W, Al Harthi MA. Date palm ash-MgAl-layered double hydroxide composite: sustainable adsorbent for effective removal of methyl orange and eriochrome black-T from aqueous phase. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:34319-34331. [PMID: 30298353 DOI: 10.1007/s11356-018-3367-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 09/27/2018] [Indexed: 05/09/2023]
Abstract
Date palm ash (DPA) and MgAl-layered double hydroxide (LDH) composites were synthesized by the co-precipitation method and characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET). The DPA-MgAl-LDH (DPA/MgAl) composites were employed for the removal of methyl orange (MO) and eriochrome black-T (EBT) from aqueous phase. Incorporation of 33.33% (w/w) DPA into the layers of MgAl increased the surface area from 44.46 to 140.65 m2/g, which leads to the improved adsorption performance. The maximum adsorption capacity of DPA/MgAl (1:2) at 298 K was 242.98 and 425.16 (mg/g) for MO and EBT, respectively. The adsorption data of dyes were adequately fitted by a pseudo-second-order and Langmuir isotherm model. The composite showed excellent reusability performance up to three cycles. Addition of DPA into MgAl-LDH resulted in an effective low-cost adsorbent for decontamination of dyes from wastewater. Graphical abstract ᅟ.
Collapse
Affiliation(s)
- Nawaf I Blaisi
- Department of Environmental Engineering, College of Engineering, Imam Abdulrahman Bin Faisal University, 31982, Dammam, Saudi Arabia
| | - Mukarram Zubair
- Department of Environmental Engineering, College of Engineering, Imam Abdulrahman Bin Faisal University, 31982, Dammam, Saudi Arabia.
| | - Sadaqat Ali
- Department of Mechanical and Energy Engineering, College of Engineering, Imam Abdulrahman Bin Faisal University, 31982, Dammam, Saudi Arabia
| | - Taye Saheed Kazeem
- Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, 31261, Dhahran, Saudi Arabia
| | - Mohammad Saood Manzar
- Department of Environmental Engineering, College of Engineering, Imam Abdulrahman Bin Faisal University, 31982, Dammam, Saudi Arabia
| | - Walid Al-Kutti
- Department of Civil and Construction Engineering, College of Engineering, Imam Abdulrahman Bin Faisal University, 31982, Dammam, Saudi Arabia
| | - Mamdouh A Al Harthi
- Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, 31261, Dhahran, Saudi Arabia
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals, 31261, Dhahran, Saudi Arabia
| |
Collapse
|
49
|
Lead Ion Sorption by Perlite and Reuse of the Exhausted Material in the Construction Field. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8101882] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper deals with the possibility of using perlite as a lead ion sorbent from industrial wastewater. Dynamic (laboratory column) operations were carried-out using beads, which were percolated by metals in a 2–10 mg·L−1 concentration range. To this purpose, lead ion solutions were eluted in columns loaded with different amounts of sorbent (2–4 g) within a 1–2 mm bead size range, at 0.15–0.4 L·h−1 flow-rates. Tests were performed to complete sorbent exhaustion (column breakthrough). The highest retention was obtained at 0.3 L·h−1, with 4 g of perlite and 10 mg·L−1 of influent, lead ion concentration. Film diffusion control was the kinetic step of the process in the Nerst stationary film at the solid/liquid interface. At the end of the sorption, perlite beads were used as lightweight aggregates in the construction field (i.e., for the preparation of cement mortars). Specifically, conglomerates showing different weights and consequently different thermal insulating and mechanical properties were obtained, with potential applications in plaster or panels.
Collapse
|
50
|
Demarco CF, Afonso TF, Pieniz S, Quadro MS, Camargo FAO, Andreazza R. In situ phytoremediation characterization of heavy metals promoted by Hydrocotyle ranunculoides at Santa Bárbara stream, an anthropogenic polluted site in southern of Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:28312-28321. [PMID: 30083896 DOI: 10.1007/s11356-018-2836-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 07/23/2018] [Indexed: 06/08/2023]
Abstract
Aquatic environments are widely affected by anthropogenic activities and efficient remediation of these areas requires detailed studies for each natural ecosystem. This research aimed to evaluate the natural phytoremediation potential of Hydrocotyle ranunculoides L., a floating aquatic macrophyte located in a polluted aquatic environment in South of the Rio Grande do Sul, Brazil. Nutrients such as P, K, Ca, Mg, and S and heavy metals such as Cu, Zn, Fe, Mn, Na, Cd, Cr, Ni, Pb, Al, As, Co, and V content in the roots and shoots of the plants were evaluated through nitric perchloric acid digestion (HNO3-HClO4) methods and quantified by ICP-OES. Bioconcentration factor (BCF), translocation factor (TF), plant effective number (PEN), and potential phytoremoval (mg m-2) were carried out. H. ranunculoides showed a substantial ability for phytoextracting P, Na, and As, since showed ability of uptake these elements from the water and translocate them to the shoots of the plants. H. ranunculoides also showed potential for application in rhizofiltration of Mg, S, Cu, Zn, Fe, Mn, Cd, Cr, Ni, Pb, Al, and V, since exhibited high potential to uptake higher levels in the roots. The highest potential for bioremoval (mg m-2) of the H. ranunculoides was detected for K, Ca, P (recommending thus the use for phytoextraction), Fe, and Al (highly recommended for rhizofiltration). Therefore, this species under study showed high potential for in situ phytoremediation at Santa Bárbara stream, and as a widespread species, it might be tested for phytoremediation in other sites.
Collapse
Affiliation(s)
- Carolina F Demarco
- Postgraduate Program at Environmental Sciences, Center of Engineering, UFPel, Pelotas, RS, Brazil
| | - Thays F Afonso
- Postgraduate Program at Environmental Sciences, Center of Engineering, UFPel, Pelotas, RS, Brazil
| | - Simone Pieniz
- Postgraduate Program at Environmental Sciences, Center of Engineering, UFPel, Pelotas, RS, Brazil
| | - Maurízio S Quadro
- Postgraduate Program at Environmental Sciences, Center of Engineering, UFPel, Pelotas, RS, Brazil
| | - Flávio A O Camargo
- Department of Soil Science, Agronomy Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Robson Andreazza
- Postgraduate Program at Environmental Sciences, Center of Engineering, UFPel, Pelotas, RS, Brazil.
| |
Collapse
|