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Gamboa DMP, Abatal M, Lima E, Franseschi FA, Ucán CA, Tariq R, Elías MAR, Vargas J. Sorption Behavior of Azo Dye Congo Red onto Activated Biochar from Haematoxylum campechianum Waste: Gradient Boosting Machine Learning-Assisted Bayesian Optimization for Improved Adsorption Process. Int J Mol Sci 2024; 25:4771. [PMID: 38731990 PMCID: PMC11083778 DOI: 10.3390/ijms25094771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/24/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
This work aimed to describe the adsorption behavior of Congo red (CR) onto activated biochar material prepared from Haematoxylum campechianum waste (ABHC). The carbon precursor was soaked with phosphoric acid, followed by pyrolysis to convert the precursor into activated biochar. The surface morphology of the adsorbent (before and after dye adsorption) was characterized by scanning electron microscopy (SEM/EDS), BET method, X-ray powder diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR) and, lastly, pHpzc was also determined. Batch studies were carried out in the following intervals of pH = 4-10, temperature = 300.15-330.15 K, the dose of adsorbent = 1-10 g/L, and isotherms evaluated the adsorption process to determine the maximum adsorption capacity (Qmax, mg/g). Kinetic studies were performed starting from two different initial concentrations (25 and 50 mg/L) and at a maximum contact time of 48 h. The reusability potential of activated biochar was evaluated by adsorption-desorption cycles. The maximum adsorption capacity obtained with the Langmuir adsorption isotherm model was 114.8 mg/g at 300.15 K, pH = 5.4, and a dose of activated biochar of 1.0 g/L. This study also highlights the application of advanced machine learning techniques to optimize a chemical removal process. Leveraging a comprehensive dataset, a Gradient Boosting regression model was developed and fine-tuned using Bayesian optimization within a Python programming environment. The optimization algorithm efficiently navigated the input space to maximize the removal percentage, resulting in a predicted efficiency of approximately 90.47% under optimal conditions. These findings offer promising insights for enhancing efficiency in similar removal processes, showcasing the potential of machine learning in process optimization and environmental remediation.
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Affiliation(s)
| | - Mohamed Abatal
- Facultad de Ingeniería, Universidad Autónoma del Carmen, Ciudad del Carmen 24115, Campeche, Mexico;
| | - Eder Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Goncalves 9500, P.O. Box 15003, Porto Alegre 91501-970, RS, Brazil;
| | - Francisco Anguebes Franseschi
- Facultad de Química, Universidad Autónoma del Carmen, Calle 56 No. 4 Av. Concordia, Ciudad del Carmen 24180, Campeche, Mexico; (F.A.F.); (C.A.U.); (M.A.R.E.)
| | - Claudia Aguilar Ucán
- Facultad de Química, Universidad Autónoma del Carmen, Calle 56 No. 4 Av. Concordia, Ciudad del Carmen 24180, Campeche, Mexico; (F.A.F.); (C.A.U.); (M.A.R.E.)
| | - Rasikh Tariq
- Tecnologico de Monterrey, Institute for the Future of Education, Ave. Eugenio Garza Sada 2501, Monterrey 64849, Nuevo León, Mexico;
| | - Miguel Angel Ramírez Elías
- Facultad de Química, Universidad Autónoma del Carmen, Calle 56 No. 4 Av. Concordia, Ciudad del Carmen 24180, Campeche, Mexico; (F.A.F.); (C.A.U.); (M.A.R.E.)
| | - Joel Vargas
- Instituto de Investigaciones en Materiales, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex Hacienda de San José de la Huerta, Morelia 58190, Michoacán, Mexico;
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Almadani M. Adsorption process modeling to reduce COD by activated carbon for wastewater treatment. CHEMOSPHERE 2023; 339:139691. [PMID: 37544522 DOI: 10.1016/j.chemosphere.2023.139691] [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: 06/01/2023] [Revised: 07/15/2023] [Accepted: 07/30/2023] [Indexed: 08/08/2023]
Abstract
Investigations have been carried out on the utilization of Activated Carbon (AC) in adsorption processes for the wastewater treatment of industry and municipal. Sulfides materials, phenols and furfural is a toxic compounds in wastewater from refineries can adversely affect the performance of biological aeration basins in reducing COD levels. This work aims to provide the effectiveness of AC in reducing the COD level of the effluent from the Dissolved Air Flotation (DAF) unit to meet standards of environments protecting and pass the design of wastewater treatment plants. A dynamic adsorption model was developed based on the dispersion of axial in the AC packed bed, assuming that the LDF (linear driving force) model in to the adsorbents is agreed to mass transfer. The model's predictions of chemical oxygen demand breakthrough curve concentrations showed excellent agreement with experimental data. The sensitivity analysis of operational conditions such as flow rate, inlet concentration of COD and bed length was used to gain a better understanding of the optimal design of an AC fixed bed. The results suggest that an AC fixed bed can complement biological treatment of wastewater and address the challenges faced by biological basins in oil refineries.
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Affiliation(s)
- Mohammad Almadani
- Department of Civil and Environmental Engineering, Faculty of Engineering-Rabigh Branch, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
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A Comprehensive Insight on Adsorption of Polyaromatic Hydrocarbons, Chemical Oxygen Demand, Pharmaceuticals, and Chemical Dyes in Wastewaters Using Biowaste Carbonaceous Adsorbents. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/9410266] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Recent trends in adsorption of hazardous organic pollutants including Polyaromatic Hydrocarbons (PAHs), Chemical Oxygen Demand (COD), Pharmaceuticals, and Chemical Dyes in wastewater using carbonaceous materials such as activated carbon (AC) and biochar (BC) have been discussed in this paper. Utilization of biomass waste in the preparation of AC and BC has gained a lot of attention recently. This review outlines the techniques used for preparation, modification, characterization, and application of the above-mentioned materials in batch studies. The approaches towards understanding the adsorption mechanisms have also been discussed. It is observed that in the majority of the studies, high removal efficiencies were reported using biowaste adsorbents. Regarding the full potential of adsorption, varying values were obtained that are strongly influenced by the adsorbent preparation technique and adsorption method. In addition, most of the studies were concentrated on the kinetic, isotherm equilibrium, and thermodynamic aspects of adsorption, suggesting the dominant isotherm and kinetic models as Langmuir or Freundlich and pseudo-second-order models. Due to development in biosorbents, adsorption has been found to be increasingly economical. However, application of these adsorbents at commercial scale has not been adequately investigated and needs to be studied. Most of the studies have been conducted on synthetic solutions that do not completely represent the discharged effluents. This also needs attention in future studies.
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Activated carbon preparation from eucalyptus wood chips using continuous carbonization-steam activation process in a batch intermittent rotary kiln. Sci Rep 2021; 11:13948. [PMID: 34230520 PMCID: PMC8260597 DOI: 10.1038/s41598-021-93249-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 06/22/2021] [Indexed: 11/08/2022] Open
Abstract
The production of activated carbon from eucalyptus wood chips by steam activation in a 2000 kg batch intermittent rotary kiln with continuous carbonization-steam activation process conducted at 500 °C to 700 °C was studied. The activated carbon products were characterized by FTIR, SEM-EDS, Raman spectroscopy, and BET analysis. Percent yields, iodine number, and methylene blue number of the produced activated carbon materials were measured as well. It was shown that the percent yields of the activated carbon materials made in the temperature range from 500 to 700 °C are 21.63 ± 1.52%-31.79 ± 0.70% with capacities of 518-737 mg I2/g and 70.11-96.93 mg methylene blue/g. The BET surface area and micropore volume of the activated carbons are 426.8125-870.4732 m2/g and 0.102390-0.215473 cm3/g, respectively. The steam used in the process could create various oxygen containing surface functional groups such as -CO and -COC groups. In addition, it could also increase the amorphous nature of the activated carbon product. These properties of the activated carbon products are increased with increasing steam activation temperature from 500 to 700 °C. As a result, the activated carbon materials produced at activation temperatures of 600 °C and 700 °C exhibit higher adsorption.
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Reshadi MAM, Bazargan A, McKay G. A review of the application of adsorbents for landfill leachate treatment: Focus on magnetic adsorption. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 731:138863. [PMID: 32446150 DOI: 10.1016/j.scitotenv.2020.138863] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/17/2020] [Accepted: 04/19/2020] [Indexed: 05/12/2023]
Abstract
Landfill leachate is a significant environmental threat due to the complexity and variety of its pollutants. There are various physical, chemical, and biological treatment methods proposed for leachate treatment. Adsorption with conventional adsorbents such as activated carbon is a process which has been widely employed with relative success. Magnetic adsorbents are a special type of adsorbents with favorable stability, high adsorption capacities, and excellent recycling and reuse capabilities when compared to conventional sorbents. Research regarding the synthesis and use of magnetic adsorbents has been growing at a rapid pace, exhibiting >8-fold increase in publications in the decade of 2010 to 2020. In the current study, both conventional and magnetic adsorbents for landfill leachate treatment have been comprehensively reviewed and discussed. The application of magnetic adsorbents for landfill leachate treatment is relatively new, with numerous avenues of research open to study. Although the production of magnetic adsorbents is significantly more expensive than conventional adsorbents, when taking into consideration all life cycle costs, they are much more competitive than it initially appears. If environmental impacts are of concern, research should shift towards the use of greener chemicals and processes for magnetic adsorbent synthesis, because preliminary analysis of the current synthesis processes shows a much higher environmental impact compared to conventional adsorbents, in particular in terms of global warming potential and energy use.
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Affiliation(s)
| | - Alireza Bazargan
- School of Environment, College of Engineering, University of Tehran, Iran.
| | - Gordon McKay
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Education City, Qatar Foundation, Qatar
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Adsorption of Ammonium Nitrogen from Aqueous Solution on Chemically Activated Biochar Prepared from Sorghum Distillers Grain. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9235249] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chemically activated biochars prepared from sorghum distillers grain using two base activators (NaOH and KOH) were investigated for their adsorption properties with respect to ammonium nitrogen from aqueous solution. Detailed characterizations, including scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetry (TG), and specific surface area analyses, were carried out to offer a broad evaluation of the prepared biochars. The results showed that the NaOH- and KOH-activated biochars exhibited significantly enhanced adsorption capacity, by 2.93 and 4.74 times, respectively, in comparison with the pristine biochar. Although the NaOH-activated biochar possessed larger specific surface area (132.8 and 117.7 m2/g for the NaOH- and KOH-activated biochars, respectively), the KOH-activated biochar had higher adsorption capacity owing to its much higher content of functional groups. The adsorption kinetics and isotherms of the KOH-activated biochar at different temperatures were further studied. The biochar had a maximum adsorption capacity of 14.34 mg/g at 45 °C, which was satisfactory compared with other biochars prepared using different feedstocks. The adsorption process followed pseudo-second-order kinetics, and chemical adsorption was the rate-controlling step. The equilibrium data were consistent with the Freundlich isotherm, and the thermodynamic parameters suggested that the adsorption process was endothermic and spontaneous. Consequently, this work demonstrates that chemically activated biochar from sorghum distillers grain is effective for ammonium nitrogen removal.
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Extraction and Characterisation of African Star Apple ( Chrysophyllum albidum) Seed Oil and the Adsorptive Properties of the Fruit Shell in Ghana. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2019; 2019:4959586. [PMID: 31058182 PMCID: PMC6463670 DOI: 10.1155/2019/4959586] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/19/2018] [Accepted: 02/14/2019] [Indexed: 12/02/2022]
Abstract
This research work was undertaken to determine the physicochemical parameters of oil from the seeds of African Star Apple (Chrysophyllum albidum) and further evaluate the adsorptive properties of the fruit shell. The oil was extracted using hexane with the soxhlet apparatus at a temperature of 65°C for 4 hours. The results showed an average oil yield obtained of 11.6%, specific gravity of 0.92kg/m3, the refractive index of 1.464 at 30°C, an acid value of 7.72 mg KOH/g, a free fatty acid value of 3.16 g/100g, saponification value of 200.56 mg KOH/g, and an iodine value of 70.64 g/100g. A Fourier Transform Infrared (FTIR) study on the oil identified some triglycerides, carbonyl, alkane, and alkene compounds. Adsorptive studies of the fruit shell for the removal of dye were also performed after chemical activation with CaCl2, MgCl2, and ZnCl2. The kinetics of the adsorption favoured a pseudo-first-order reaction pathway for CaCl2 with R2 of 0.941 while ZnCl2 and MgCl2 favoured a pseudo-second-order reaction pathway with R2 of 0.914 and 0.973, respectively.
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da Silva CP, Pedroso CR, Zarpellon DI, Machado Filho JG, Sousa Vidal CM, Zimmermann CM, de Campos SX. Post-treatment of anaerobic reactor effluent for reuse using a triple filtration system. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 233:76-82. [PMID: 30562619 DOI: 10.1016/j.jenvman.2018.12.030] [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: 04/13/2018] [Revised: 11/15/2018] [Accepted: 12/09/2018] [Indexed: 06/09/2023]
Abstract
This study evaluated the triple filtration technology efficiency as a post-treatment of anaerobic reactor effluent. This study was carried out employing different concentrations of ferric chloride as coagulant and peracetic acid or calcium hypochlorite as oxidant. The filtration rates used were 150 m3/m2 d and 120 m3/m2 d. The efficiency of the system was evaluated through physicochemical and microbiological parameters. The best conditions found were those using 20 mg/L ferric chloride, 120 m3/m2 d filtration rate and 0.8 and 1.6 mg/L free chlorine. These conditions resulted in turbidity <1.0 NTU, Total Organic Carbon <1.5 mg/L, Chemical Oxygen Demand <1.0 mg/L, Biochemical Oxygen Demand <1.0 mg/L, in addition 100% removal of Total Phosphorus and Linear Alkylate Sulfonate. The post-oxidation process promoted inactivation of 100% Total Coliforms and E. coli. The post-treatment was able to produce effluent with characteristics that enable its urban, damming, creation and maintenance of wetlands, industrial and agricultural reuse proposed by USEPA.
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Affiliation(s)
- Cleber Pinto da Silva
- Laboratory of Analytical Chemistry, Environmental and Sanitary, Ponta Grossa State University (UEPG), Ponta Grossa, Paraná, Brazil.
| | | | - Diogo Ingles Zarpellon
- Sanitation Company of Paraná, Regional Unit of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | | | | | - Ciro Maurício Zimmermann
- Department of Chemical Engineering, Federal Technological University of Paraná, Ponta Grossa, Paraná, Brazil
| | - Sandro Xavier de Campos
- Laboratory of Analytical Chemistry, Environmental and Sanitary, Ponta Grossa State University (UEPG), Ponta Grossa, Paraná, Brazil.
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9
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Competitive adsorption and optimization of binary mixture of textile dyes: A factorial design analysis. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.jaubas.2016.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Nayl AEA, Elkhashab RA, El Malah T, Yakout SM, El-Khateeb MA, Ali MMS, Ali HM. Adsorption studies on the removal of COD and BOD from treated sewage using activated carbon prepared from date palm waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:22284-22293. [PMID: 28799143 DOI: 10.1007/s11356-017-9878-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 08/01/2017] [Indexed: 06/07/2023]
Abstract
In this work, the adsorption of chemical oxygen demand (COD) and biological oxygen demand (BOD) from treated sewage with low-cost activated carbon prepared from date palm shell waste by chemical activation method was studied. Different parameters affecting the adsorption process such as carbon dose, pH, contact time, agitation rate, and temperature were studied. Adsorption equilibrium was attained after 150 min at pH 6.0 with agitation rate of 400 rpm at 25 °C. The results showed that COD removal percentage of 95.4 and 92.8% for BOD was obtained with carbon dosage of 0.1 g/100 ml of solution. The experimental batch equilibrium results follow linear, Langmuir, and Freundlich isotherm models. The experimental data was fitted to a pseudo-second-order kinetics model controlled by pore diffusion. Thermodynamic parameter values of ΔH 0, ΔG 0, and ΔS 0 were calculated. The obtained data indicated that the adsorption was spontaneous, endothermic nature and reflects an increased randomness and degree of disorderliness at the activated carbon/sewage interface during the adsorption process investigated in this study. Concentrations of different impurities were reduced to very small value by investigated adsorption process.
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Affiliation(s)
- Abd ElAziz A Nayl
- Chemistry Department, College of Science, Al Jouf University, Sakakah, Saudi Arabia.
- Hot Labs Centre, Atomic Energy Authority, Cairo, 13759, Egypt.
| | - Reda A Elkhashab
- Chemistry Department, College of Science, Al Jouf University, Sakakah, Saudi Arabia
- National Center for Clinical and Environmental Toxicology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Tamer El Malah
- Photochemistry Department, National Research Centre, Dokki, Cairo, 12622, Egypt
| | - Sobhy M Yakout
- Hot Labs Centre, Atomic Energy Authority, Cairo, 13759, Egypt
- Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed A El-Khateeb
- Water Pollution Control Department, Environmental Research Division, National Research Center, Dokki, Cairo, 12622, Egypt
| | - Mahmoud M S Ali
- Hot Labs Centre, Atomic Energy Authority, Cairo, 13759, Egypt
| | - Hazim M Ali
- Chemistry Department, College of Science, Al Jouf University, Sakakah, Saudi Arabia
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Removal of basic and industrial azo reactive dyes from aqueous solutions via Fenton-like reactions using catalytic non-magnetic Pd-flyash and magnetic Pd-Fe3O4-flyash composite particles. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.08.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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12
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Ezechi EH, Kutty SR, Isa MH, Malakahmad A, Ude CM, Menyechi EJ, Olisa E. Nutrient Removal from Wastewater by Integrated Attached Growth Bioreactor. ACTA ACUST UNITED AC 2016. [DOI: 10.3923/rjet.2016.28.38] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Characterization and Properties of Activated Carbon Prepared from Tamarind Seeds by KOH Activation for Fe(III) Adsorption from Aqueous Solution. ScientificWorldJournal 2015; 2015:415961. [PMID: 26689357 PMCID: PMC4673353 DOI: 10.1155/2015/415961] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 10/20/2015] [Accepted: 11/09/2015] [Indexed: 11/25/2022] Open
Abstract
This research studies the characterization of activated carbon from tamarind seed with KOH activation. The effects of 0.5 : 1–1.5 : 1 KOH : tamarind seed charcoal ratios and 500–700°C activation temperatures were studied. FTIR, SEM-EDS, XRD, and BET were used to characterize tamarind seed and the activated carbon prepared from them. Proximate analysis, percent yield, iodine number, methylene blue number, and preliminary test of Fe(III) adsorption were also studied. Fe(III) adsorption was carried out by 30 mL column with 5–20 ppm Fe(III) initial concentrations. The percent yield of activated carbon prepared from tamarind seed with KOH activation decreased with increasing activation temperature and impregnation ratios, which were in the range from 54.09 to 82.03 wt%. The surface functional groups of activated carbon are O–H, C=O, C–O, –CO3, C–H, and Si–H. The XRD result showed high crystallinity coming from a potassium compound in the activated carbon. The main elements found in the activated carbon by EDS are C, O, Si, and K. The results of iodine and methylene blue adsorption indicate that the pore size of the activated carbon is mostly in the range of mesopore and macropore. The average BET pore size and BET surface area of activated carbon are 67.9764 Å and 2.7167 m2/g, respectively. Finally, the tamarind seed based activated carbon produced with 500°C activation temperature and 1.0 : 1 KOH : tamarind seed charcoal ratio was used for Fe(III) adsorption test. It was shown that Fe(III) was adsorbed in alkaline conditions and adsorption increased with increasing Fe(III) initial concentration from 5 to 20 ppm with capacity adsorption of 0.0069–0.019 mg/g.
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Henry Ezec E, Mohamed Ku SRB, Hasnain Is M, Malakahmad A, Ibrahim SU. Chemical Oxygen Demand Removal from Wastewater by Integrated Bioreactor. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/jest.2015.238.243] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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da Silva Lacerda V, López-Sotelo JB, Correa-Guimarães A, Hernández-Navarro S, Sánchez-Báscones M, Navas-Gracia LM, Martín-Ramos P, Martín-Gil J. Rhodamine B removal with activated carbons obtained from lignocellulosic waste. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2015; 155:67-76. [PMID: 25770964 DOI: 10.1016/j.jenvman.2015.03.007] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 03/02/2015] [Accepted: 03/05/2015] [Indexed: 05/11/2023]
Abstract
By-products from the wax production process from carnauba palm (leaves), from the extraction of oil from macauba seeds (endocarp) and from pine nut production (shell) have been assessed for activated carbon production, using H3PO4 or CaCl2 for their chemical activation. The resulting activated charcoals have been thoroughly characterized by elemental and thermal analysis, X-ray diffraction, infrared spectroscopy, electron scanning microscopy and N2 adsorption behavior. Subsequently, their adsorption capacity for the removal of rhodamine B (RhB) from aqueous solutions has been evaluated by studying different parameters: contact time, pH, adsorbent dose, initial dye concentration and solution temperature. The adsorption of RhB followed Freundlich's model in all cases. Kinetic studies indicate that the pseudo-second order model can be used for describing the dynamics of the adsorption process. Thermodynamic parameters have also been evaluated, indicating its endothermic and spontaneous nature. Finally, a preliminary analysis of the impact of cellulose content in the carbon precursor materials has been conducted, by using a mixture of native cellulose with one of the lignocellulosic materials.
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Affiliation(s)
- Viviane da Silva Lacerda
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, Spain
| | - Juan B López-Sotelo
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, Spain
| | - Adriana Correa-Guimarães
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, Spain
| | - Salvador Hernández-Navarro
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, Spain
| | - Mercedes Sánchez-Báscones
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, Spain
| | - Luis M Navas-Gracia
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, Spain
| | - Pablo Martín-Ramos
- Department of Agricultural and Environmental Sciences, Higher Polytechnic School of Huesca, Universidad de Zaragoza, Carretera de Cuarte s/n, 22071 Huesca, Spain
| | - Jesús Martín-Gil
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, Spain.
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Mauri M, Farina M, Patriarca G, Simonutti R, Klasson KT, Cheng HN. 129Xe NMR Studies of Pecan Shell-Based Biochar and Structure-Process Correlations. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2015. [DOI: 10.1080/1023666x.2015.979038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Development of a new method for determination of aluminum (Al) in Jordanian foods and drinks: Solid phase extraction and adsorption of Al3+-d-mannitol on carbon nanotubes. J Food Compost Anal 2014. [DOI: 10.1016/j.jfca.2013.10.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Lima IM, Boykin DL, Thomas Klasson K, Uchimiya M. Influence of post-treatment strategies on the properties of activated chars from broiler manure. CHEMOSPHERE 2014; 95:96-104. [PMID: 24025533 DOI: 10.1016/j.chemosphere.2013.08.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 08/05/2013] [Accepted: 08/08/2013] [Indexed: 06/02/2023]
Abstract
There are a myriad of carbonaceous precursors that can be used advantageously to produce activated carbons or chars, due to their low cost, availability and intrinsic properties. Because of the nature of the raw material, production of granular activated chars from broiler manure results in a significant ash fraction. This study was conducted to determine the influence of several pre- and post-treatment strategies in various physicochemical and adsorptive properties of the resulting activated chars. Pelletized samples of broiler litter and cake were pyrolyzed at 700 °C for 1h followed by a 45 min steam activation at 800 °C at different water flow rates from 1 to 5 mL min(-1). For each activation strategy, samples were either water-rinsed or acid-washed and rinsed or used as is (no acid wash/rinse). Activated char's physicochemical and adsorptive properties towards copper ions were selectively affected by both pre- and post-treatments. Percent ash reduction after either rinsing or acid washing ranged from 1.1 to 15.1% but washed activated chars were still alkaline with pH ranging from 8.4 to 9.1. Acid washing or water rinsing had no significant effect in the ability of the activated char to adsorb copper ions, however it significantly affected surface area, pH, ash content and carbon content. Instead, manure type (litter versus cake) and the activation water flow rate were determining factors in copper ion adsorption which ranged from 38 mg g(-1) to 104 mg g(-1) of activated char. Moreover, strong positive correlations were found between copper uptake and concentration of certain elements in the activated char such as phosphorous, sulfur, calcium and sodium. Rinsing could suffice as a post treatment strategy for ash reduction since no significant differences in the carbon properties were observed between rinsed and acid wash treatments.
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Affiliation(s)
- Isabel M Lima
- USDA ARS, Southern Regional Research Center, 1100 Robert E. Lee Blvd, New Orleans, LA 70124, United States.
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El-Sheikh AH, Newman AP, Said AJ, Alzawahreh AM, Abu-Helal MM. Improving the adsorption efficiency of phenolic compounds into olive wood biosorbents by pre-washing with organic solvents: Equilibrium, kinetic and thermodynamic aspects. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2013; 118:1-10. [PMID: 23376341 DOI: 10.1016/j.jenvman.2013.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 01/06/2013] [Accepted: 01/11/2013] [Indexed: 06/01/2023]
Abstract
The adsorption properties of olive wood (OW) toward phenol, 2-chlorophenol, 3-chlorophenol, 4-chlorophenol, 2-nitrophenol, 4-nitrophenol and 2,4-dinitrophenol, were improved by washing OW with some organic solvents (ethanol, tetrahydrofuran, ether, dichloromethane or hexane). Adsorption isotherms were classified according to Giles and Smith classification, in which L2-shape was obtained after OW washing. The adsorption data were modeled using Langmuir and Freundlich isotherm equations and it was found that adsorption capacity and affinity have increased after OW washing. Thermodynamic (ΔG°, ΔH° and ΔS°), kinetic and intra-particle diffusion parameters were estimated before and after OW washing. It was found that the adsorption of phenols on OW was of physical nature, spontaneous, exothermic and followed second order rate equation. After OW washing, adsorption spontaneity has increased. Both pore diffusion and kinetic resistances have most likely affected the adsorption process. The results presented in this work suggested that washing OW with any one of the tested solvents would enhance uptake of the tested phenols into OW sorbent. Discussing some economical and environmental aspects suggested that the use of ethanol might be preferred.
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Affiliation(s)
- Amjad H El-Sheikh
- Department of Chemistry, Faculty of Science, Hashemite University, Zarqa 13115, Jordan.
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Spokas KA, Cantrell KB, Novak JM, Archer DW, Ippolito JA, Collins HP, Boateng AA, Lima IM, Lamb MC, McAloon AJ, Lentz RD, Nichols KA. Biochar: a synthesis of its agronomic impact beyond carbon sequestration. JOURNAL OF ENVIRONMENTAL QUALITY 2012; 41:973-989. [PMID: 22751040 DOI: 10.2134/jeq2011.0069] [Citation(s) in RCA: 225] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Biochar has been heralded as an amendment to revitalize degraded soils, improve soil carbon sequestration, increase agronomic productivity, and enter into future carbon trading markets. However, scientific and economic technicalties may limit the ability of biochar to consistently deliver on these expectations. Past research has demonstrated that biochar is part of the black carbon continuum with variable properties due to the net result of production (e.g., feedstock and pyrolysis conditions) and postproduction factors (storage or activation). Therefore, biochar is not a single entity but rather spans a wide range of black carbon forms. Biochar is black carbon, but not all black carbon is biochar. Agronomic benefits arising from biochar additions to degraded soils have been emphasized, but negligible and negative agronomic effects have also been reported. Fifty percent of the reviewed studies reported yield increases after black carbon or biochar additions, with the remainder of the studies reporting alarming decreases to no significant differences. Hardwood biochar (black carbon) produced by traditional methods (kilns or soil pits) possessed the most consistent yield increases when added to soils. The universality of this conclusion requires further evaluation due to the highly skewed feedstock preferences within existing studies. With global population expanding while the amount of arable land remains limited, restoring soil quality to nonproductive soils could be key to meeting future global food production, food security, and energy supplies; biochar may play a role in this endeavor. Biochar economics are often marginally viable and are tightly tied to the assumed duration of agronomic benefits. Further research is needed to determine the conditions under which biochar can provide economic and agronomic benefits and to elucidate the fundamental mechanisms responsible for these benefits.
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Affiliation(s)
- Kurt A Spokas
- USDA-ARS, Soil and Water Management Unit, St.Paul, MN, USA.
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Rathinam A, Rao JR, Nair BU. Adsorption of phenol onto activated carbon from seaweed: Determination of the optimal experimental parameters using factorial design. J Taiwan Inst Chem Eng 2011. [DOI: 10.1016/j.jtice.2011.04.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wang Y, Cheng R, Wen Z, Zhao L. Synthesis and Characterization of Single-Crystalline MnFe2O4 Ferrite Nanocrystals and Their Possible Application in Water Treatment. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100205] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Zhang L, Zhou X, Guo X, Song X, Liu X. Investigation on the degradation of acid fuchsin induced oxidation by MgFe2O4 under microwave irradiation. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcata.2010.11.007] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ahmad AA, Hameed BH. Reduction of COD and color of dyeing effluent from a cotton textile mill by adsorption onto bamboo-based activated carbon. JOURNAL OF HAZARDOUS MATERIALS 2009; 172:1538-43. [PMID: 19740605 DOI: 10.1016/j.jhazmat.2009.08.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2009] [Revised: 08/06/2009] [Accepted: 08/06/2009] [Indexed: 05/25/2023]
Abstract
In this work, activated carbon was prepared from bamboo waste by chemical activation method using phosphoric acid as activating agent. The activated carbon was evaluated for chemical oxygen demand (COD) and color reduction of a real textile mill effluent. A maximum reduction in color and COD of 91.84% and 75.21%, respectively was achieved. As a result, the standard B discharge limit of color and COD under the Malaysian Environmental Quality act 1974 was met. The Freundlich isotherm model was found best to describe the obtained equilibrium adsorption data at 30 degrees C. The Brunauer-Emmett-Teller (BET) surface area, total pore volume and the average pore diameter were 988.23 m(2)/g, 0.69 cm(3)/g and 2.82 nm, respectively. Various functional groups on the prepared bamboo activated carbon (BAC) were determined from the FTIR results.
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Affiliation(s)
- A A Ahmad
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia
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Lv S, Chen X, Ye Y, Yin S, Cheng J, Xia M. Rice hull/MnFe2O4 composite: preparation, characterization and its rapid microwave-assisted COD removal for organic wastewater. JOURNAL OF HAZARDOUS MATERIALS 2009; 171:634-639. [PMID: 19581049 DOI: 10.1016/j.jhazmat.2009.06.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2009] [Revised: 05/21/2009] [Accepted: 06/10/2009] [Indexed: 05/28/2023]
Abstract
Adsorbent/ferrite composites can adsorb and degrade organics in the organic wastewater treatment. In this study, a rice hull/MnFe(2)O(4) composite (RHM) was prepared via calcination under nitrogen atmosphere and was used to treat organic wastewater with the assistance of microwave radiation. Rice hull was pyrolysed to a porous substrate that consisted of silica and activated carbon under high temperature. Monodisperse spinel MnFe(2)O(4) nanoparticles whose mean diameter is around 59 nm are distributed on the substrate. With the assistance of microwave radiation, RHM was motivated to a hotspot of adsorption and catalysis which could remove more than 70% COD of wastewater within 6 min. The maximum COD removal was 73.5% when the concentration of RHM was 15 mg mL(-1) and the irradiation time of microwave radiation was 6 min. Although the BET surface area and iodine value of RHM are half of rice hull ash (RHA), the COD removal of RHM is 7-20% higher than that of RHA. It is attributed to the presence of MnFe(2)O(4), which enhances the catalytic activity of RHM. RHM can be regenerated via water washing. However, the surface area and the maximum COD removal of RHM decrease for each regeneration cycle. With the advantages of low cost and rapid processing, this novel rice hull/MnFe(2)O(4) composite could gain promising application in wastewater treating-agent.
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Affiliation(s)
- Shuangshuang Lv
- Zhejiang Institute of Geology & Mineral Resources, Hangzhou 310007, People's Republic of China
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Glutaraldehyde cross-linked epoxyaminated chitosan as an adsorbent for the removal and recovery of copper(II) from aqueous media. Colloids Surf A Physicochem Eng Asp 2009. [DOI: 10.1016/j.colsurfa.2009.09.034] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Amuda O, Adelowo F, Ologunde M. Kinetics and equilibrium studies of adsorption of chromium(VI) ion from industrial wastewater using Chrysophyllum albidum (Sapotaceae) seed shells. Colloids Surf B Biointerfaces 2009; 68:184-92. [DOI: 10.1016/j.colsurfb.2008.10.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2008] [Revised: 09/19/2008] [Accepted: 10/01/2008] [Indexed: 12/01/2022]
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Andini S, Cioffi R, Colangelo F, Montagnaro F, Santoro L. Adsorption of chlorophenol, chloroaniline and methylene blue on fuel oil fly ash. JOURNAL OF HAZARDOUS MATERIALS 2008; 157:599-604. [PMID: 18289785 DOI: 10.1016/j.jhazmat.2008.01.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2007] [Revised: 12/21/2007] [Accepted: 01/10/2008] [Indexed: 05/25/2023]
Abstract
Fuel oil fly ash has been tested as low-cost carbon-based adsorbent of 2-chlorophenol (CP), 2-chloroaniline (CA) and methylene blue (MB) from aqueous solutions. In all the cases the adsorption was found to be of cooperative type. Different adsorption capacities were found for the three organics. Specifically, it was highest for 2-chlorophenol, reaching about 70 mg g(-1), and quite lower in the other two cases, that is about 47 and 36 mg g(-1) for methylene blue and 2-chloroaniline, respectively. Varying the initial pH and adding KCl were found to have different effects on the adsorption of the three organics. In particular, the presence of other ions had no effect on the adsorption of methylene blue, adverse effect in the case of 2-chlorophenol and enhancing effect in the case of 2-chloroaniline.
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Affiliation(s)
- Salvatore Andini
- Dipartimento di Chimica, Università di Napoli Federico II, Via Cintia, Napoli, Italy
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Caqueret V, Bostyn S, Cagnon B, Fauduet H. Purification of sugar beet vinasse - adsorption of polyphenolic and dark colored compounds on different commercial activated carbons. BIORESOURCE TECHNOLOGY 2008; 99:5814-5821. [PMID: 18023340 DOI: 10.1016/j.biortech.2007.10.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2007] [Revised: 09/28/2007] [Accepted: 10/03/2007] [Indexed: 05/25/2023]
Abstract
The adsorption on activated carbons of dark colored compounds contained in sugar beet vinasse was studied. Four commercial activated carbons with different properties (particle size, residual acidity and microporous properties) were respectively checked for efficiency at two temperature levels (25 degrees C and 40 degrees C) and at four pH levels (2,3.5,7,10). The adsorption of organic molecules was determined by quantifying the amounts of total polyphenolic compounds and total organic carbon. The results showed that the adsorption capacity of dark colored compounds was enhanced by the decrease in both temperature and pH values of the solution. In this study, it is shown that this capacity depends on activated carbon characteristics which can be classified in the following order: particle size>residual acidity>microporous volume. Three models (Langmuir, Freundlich and Dubinin-Radushkevich) were tested from experimental data and compared. The Langmuir model provided the best correlation on all the activated carbons studied.
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Affiliation(s)
- Vincent Caqueret
- Laboratoire de Génie des Procédés pour l'Environnement, l'Energie et la Santé (GP2ES-EA 21), Institut Universitaire de Technologie, Université d'Orléans, Rue d'Issoudun, BP 16729, 45067 Orléans Cedex 2, France
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Hernandez-Ramirez O, Holmes SM. Novel and modified materials for wastewater treatment applications. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b716941h] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Amuda O, Giwa A, Bello I. Removal of heavy metal from industrial wastewater using modified activated coconut shell carbon. Biochem Eng J 2007. [DOI: 10.1016/j.bej.2007.02.013] [Citation(s) in RCA: 267] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Guo Y, Rockstraw DA. Physicochemical properties of carbons prepared from pecan shell by phosphoric acid activation. BIORESOURCE TECHNOLOGY 2007; 98:1513-21. [PMID: 16973352 DOI: 10.1016/j.biortech.2006.06.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2005] [Revised: 06/19/2006] [Accepted: 06/19/2006] [Indexed: 05/11/2023]
Abstract
Activated carbons were prepared from pecan shell by phosphoric acid activation. The pore structure and acidic surface groups of these carbons were characterized by nitrogen adsorption, Boehm titration and transmittance Fourier infrared spectroscopy (FTIR) techniques. The characterization results demonstrated that the development of pore structure was apparent at temperatures 250 degrees C, and reached 1130m(2)/g and 0.34cm(3)/g, respectively, at 500 degrees C. Impregnation ratio and soaking time at activation temperature also affected the pore development and pore size distribution of final carbon products. At an impregnation ratio of 1.5, activated carbon with BET surface area and micropore volume as high as 861m(2)/g and 0.289cm(3)/g was obtained at 400 degrees C. Microporous activated carbons were obtained in this study. Low impregnation ratio (less than 1.5) and activation temperature (less than 300 degrees C) are favorable to the formation of acidic surface functional groups, which consist of temperature-sensitive (unstable at high temperature) and temperature-insensitive (stable at high temperature) two parts. The disappearance of temperature-sensitive groups was significant at temperature 300 degrees C; while the temperature-insensitive groups are stable even at 500 degrees C. FTIR results showed that the temperature-insensitive part was mostly phosphorus-containing groups as well as some carbonyl-containing groups, while carbonyl-containing groups were the main contributor of temperature-sensitive part.
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Affiliation(s)
- Yanping Guo
- Department of Environmental Engineering and Science, Clemson University, 342 Computer Court, Anderson, SC 29625, USA.
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Igwe J, Abia A. Adsorption isotherm studies of Cd (II), Pb (II) and Zn (II) ions bioremediation from aqueous solution using unmodified and EDTA-modified maize cob. ECLÉTICA QUÍMICA 2007. [DOI: 10.1590/s0100-46702007000100005] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | - A.A. Abia
- University of Port-Harcourt, Nigeria
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Influence of carbon dioxide partial pressure and fluidization velocity on activated carbons prepared from scrap car tyre in a fluidized bed. Chem Eng Sci 2006. [DOI: 10.1016/j.ces.2006.09.047] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Basso MC, Cukierman AL. Wastewater Treatment by Chemically Activated Carbons from Giant Reed: Effect of the Activation Atmosphere on Properties and Adsorptive Behavior. SEP SCI TECHNOL 2006. [DOI: 10.1080/01496390500445642] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chapter 9 Activated carbon filters and their industrial applications. INTERFACE SCIENCE AND TECHNOLOGY 2006. [DOI: 10.1016/s1573-4285(06)80018-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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37
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Basso MC, Cukierman AL. Arundo donax-Based Activated Carbons for Aqueous-Phase Adsorption of Volatile Organic Compounds. Ind Eng Chem Res 2005. [DOI: 10.1021/ie0492294] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. C. Basso
- Programa de Investigación y Desarrollo de Fuentes Alternativas de Materias Primas y EnergíaPINMATE, Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2620, Ciudad Universitaria (C1428BGA), Buenos Aires, Argentina, and Departamento de Tecnología Farmacéutica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956 (C1113AAD), Buenos Aires, Argentina
| | - A. L. Cukierman
- Programa de Investigación y Desarrollo de Fuentes Alternativas de Materias Primas y EnergíaPINMATE, Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2620, Ciudad Universitaria (C1428BGA), Buenos Aires, Argentina, and Departamento de Tecnología Farmacéutica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956 (C1113AAD), Buenos Aires, Argentina
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Tawalbeh M, Allawzi MA, Kandah MI. Production of Activated Carbon from Jojoba Seed Residue by Chemical Activation Residue Using a Static Bed Reactor. ACTA ACUST UNITED AC 2005. [DOI: 10.3923/jas.2005.482.487] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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