1
|
Yu B, Zhang Y, Wu H, Yan W, Meng Y, Hu C, Liu Z, Ding J, Zhang H. Advanced oxidation processes for synchronizing harmful microcystis blooms control with algal metabolites removal: From the laboratory to practical applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167650. [PMID: 37806585 DOI: 10.1016/j.scitotenv.2023.167650] [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: 07/30/2023] [Revised: 10/05/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
Harmful algal blooms (HABs) in freshwater systems have become a global epidemic, leading to a series of problems related to cyanobacterial outbreaks and toxicity. Studies are needed to improve the technology used for the simultaneous removal of harmful cyanobacteria and algal metabolites. In this review, widely reported advanced oxidation processes (AOPs) strategies for removing major species Microcystis aeruginosa (M. aeruginosa) and microcystins (MCs) were screened through bibliometrics, such as photocatalysis, activated persulfate, H2O2, Ozone oxidation, ultrasonic oxidation, and electrochemical oxidation, etc. AOPs generate kinds of reactive oxygen species (ROS) to inactivate cyanobacteria and degrade cyanotoxins. A series of responses occurs in algal cells to resist the damaging effects of ROS generated by AOPs. Specifically, we reviewed laboratory research, mechanisms, practical applications, and challenges of HABs treatments in AOPs. Problems common to these technologies include the impact of algal response and metabolites, and environmental factors. This information provides guidance for future research on the removal of harmful cyanobacteria and treatment of algal metabolites using AOPs.
Collapse
Affiliation(s)
- Bingzhi Yu
- School of Life and Environmental Sciences, Hangzhou Normal University, 311121 Hangzhou, Zhejiang, China
| | - Yinan Zhang
- School of Life and Environmental Sciences, Hangzhou Normal University, 311121 Hangzhou, Zhejiang, China
| | - Huazhen Wu
- Hangzhou Huanke Environmental Consulting Co. LTD, 310010 Hangzhou, Zhejiang, China
| | - Wen Yan
- School of Life and Environmental Sciences, Hangzhou Normal University, 311121 Hangzhou, Zhejiang, China
| | - Yunjuan Meng
- School of Life and Environmental Sciences, Hangzhou Normal University, 311121 Hangzhou, Zhejiang, China
| | - Chao Hu
- School of Life and Environmental Sciences, Hangzhou Normal University, 311121 Hangzhou, Zhejiang, China
| | - Zhiquan Liu
- School of Engineering, Hangzhou Normal University, 310018 Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Urban Wetlands and Regional Change, 311121 Hangzhou, Zhejiang, China
| | - Jiafeng Ding
- School of Engineering, Hangzhou Normal University, 310018 Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Urban Wetlands and Regional Change, 311121 Hangzhou, Zhejiang, China.
| | - Hangjun Zhang
- School of Engineering, Hangzhou Normal University, 310018 Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Urban Wetlands and Regional Change, 311121 Hangzhou, Zhejiang, China
| |
Collapse
|
2
|
Shahi NK, Kim JY, Dockko S. Process analysis of microplastic aging during the photochemical oxidation process and its effect on the adsorption behavior of dissolved organic matter. CHEMOSPHERE 2023; 341:139980. [PMID: 37648171 DOI: 10.1016/j.chemosphere.2023.139980] [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: 05/15/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 09/01/2023]
Abstract
Information on microplastics (MPs) interactions with dissolved organic matter (DOM) is essential for understanding their environmental impacts. However, research is scarce regarding the adsorption behavior of DOM with different characteristics onto pristine and aged MPs. This research thus investigates MPs aging behavior accelerated by UV/Persulfate and UV/chlorine oxidation processes and the adsorption behavior of organic matter with low-specific ultraviolet absorbance (L-SUVA) and high-SUVA (H-SUVA) characteristics. MPs were degraded by UV/Cl and UV/Persulfate for 30 days. Changes in thermal properties, surface morphology, and chemistry were studied using different analytical techniques. The adsorption behavior was assessed by adsorption kinetic and isotherm study. After oxidation, the surface of the MPs showed a significant increase in the oxygen-containing functional groups, contact angle, surface roughness, and surface energy, and a decrease in crystallinity. The oxidation effect follows the order of UV/Cl > UV/Persulfate. The kinetic and equilibrium data of H-SUVA adsorption on pristine and aged MPs well-fitted the pseudo-second-order and Langmuir model. In contrast, L-SUVA well-fitted the pseudo-first-order and Freundlich model. The adsorption capacity (qm) increased in the following orders: 8.11 > 5.87>4.29 mg g-1 for H-SUVA and 19.81 > 6.662>5.315 mg g-1 for L-SUVA by MPs aged with UV/Cl, UV/Persulfate and pristine MPs, respectively. The larger the surface damage of MPs, the greater the adsorption affinity of DOM. The result was attributed to the physical adsorption process, hydrophobic interactions, electrostatic, hydrogen, and halogen bonding. These findings are beneficial to provide new insights involving the adsorption behavior and interaction mechanisms of DOM onto MPs for the environmental risk assessment.
Collapse
Affiliation(s)
- Nirmal Kumar Shahi
- Department of Civil and Environmental Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Jae-Yup Kim
- Department of Chemical Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Seok Dockko
- Department of Civil and Environmental Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, Republic of Korea.
| |
Collapse
|
3
|
Wang M, Li T, Hou Q, Hao Y, Wang Z. Facile one-step preparation of Co and Ce doped TiO 2 in visible light PMS activation for PAHs degradation. CHEMOSPHERE 2022; 308:136360. [PMID: 36115476 DOI: 10.1016/j.chemosphere.2022.136360] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/18/2022] [Accepted: 09/03/2022] [Indexed: 06/15/2023]
Abstract
In this work, Co and Ce doped TiO2 (CoCeTi) with low content of Co and Ce was successfully prepared by a facile one-step sol-gel solvothermal process for activating Peroxymonosulfate (PMS) to degrade Polycyclic aromatic hydrocarbons (PAHs). The phenanthrene degradation rate was 98.2% effectively in 15 min by CoCeTi (50.0 mg/L) activation PMS (0.50 mmol/L) under visible light. SO4•-, O2•-, h+ and 1O2 were verified as the dominant reactive species for PAHs degradation. The collective effect of CoCeTi, PMS and visible light irradiation has been discussed. The possible phenanthrene degradation pathway was proposed through intermediates analysis. CoCeTi composed of Co3O4, CeO2 and TiO2 was confirmed. Outstandingly, CoCeTi/PMS/visible light system has very low cobalt (0.036 mg/L) and cerium (0.27 mg/L) leaching. Due to CoCeTi having good activated PMS properties and other excellent characteristics, it has potential application for PAHs or other organic pollutants degradation.
Collapse
Affiliation(s)
- Mingyong Wang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing, 100049, China
| | - Taiguang Li
- School of Chemical Sciences, University of the Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing, 100049, China
| | - Qingzheng Hou
- School of Chemical Sciences, University of the Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing, 100049, China
| | - Yongmei Hao
- School of Chemical Sciences, University of the Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing, 100049, China.
| | - Zhongming Wang
- Faculty of Science, Beijing University of Chemical Technology, No. 15 of North 3rd Ring East Road, Chaoyang District, 100029, Beijing, China.
| |
Collapse
|
4
|
Shahi NK, Dockko S. Low-energy high-rate flotation technology for reduction of organic matter and disinfection by-products formation potential: A pilot-scale study. CHEMOSPHERE 2022; 303:135147. [PMID: 35636602 DOI: 10.1016/j.chemosphere.2022.135147] [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: 04/04/2022] [Revised: 05/21/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Despite operating complexity and high energy costs associated with its operation and maintenance, dissolved air flotation (DAF) is widely used in drinking water treatment processes. Recently, the focus has shifted to designing and developing DAF with high surface loading rates. This research compares the performance of pilot-scale high-rate DAF and low-energy high-rate flash-pressurized flotation (FPF) based on the removal behavior of natural organic matter, different molecular weight size fractions, and the formation potential of disinfection by-products. For a surface-loading rate of 30 m/h, the residual dissolved organic matter (DOC) concentrations in treated samples from high-rate DAF and FPF were 1.35 ± 0.02 (30.25 ± 0.15% removal) mg/L and 1.37 ± 0.03 (29.12 ± 1.72% removal) mg/L, respectively. In contrast, the removal of high-molecular-weight fractions, i.e., biopolymers and humic substances, showed similar removal performance for both treatment processes but not for building blocks. The removal rates were 27.10% and 6.64% for high-rate DAF and FPF, respectively. The formation potential of trihalomethanes/DOC for high-rate DAF with reaction times of 1, 3, 6, and 9 days 14.12 ± 0.18, 17.84 ± 0.22, 23.04 ± 0.29, and 29.73 ± 0.37 μg/mg C, respectively, and 16.83 ± 0.34, 22.69 ± 0.46, 27.08 ± 0.55, and 28.54 ± 0.58 for high-rate FPF. In the case of haloacetonitriles/dissolved organic nitrogen-humic substances and chloral hydrate/DOC, there were no significant differences. Thus, low-energy high-rate FPF with a reduction of energy of 55% provides an alternative to high-rate DAF.
Collapse
Affiliation(s)
- Nirmal Kumar Shahi
- Department of Civil and Environmental Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Seok Dockko
- Department of Civil and Environmental Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, Republic of Korea.
| |
Collapse
|
5
|
Kong Y, Ji L, Wang Y, Li J, Lu H, Mo S, Wang X, Zhu L, Xu X, Zheng X. Combined Effect of NZVI and H 2O 2 on the Cyanobacterium Microcystis aeruginosa: Performance and Mechanism. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3017. [PMID: 36080055 PMCID: PMC9458205 DOI: 10.3390/nano12173017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 08/25/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
In order to eliminate the harmful cyanobacterium Microcystis aeruginosa and the algal organic matters (AOMs) produced by M. aeruginosa, the combined process of nanoscale zero-valent iron (NZVI) and hydrogen peroxide (H2O2) has been carried out, and the removal mechanism has also been clarified. As the initial cyanobacterial cell concentration is 1.0 (±0.05) × 105 cells·mL-1, all the treatments of NZVI, H2O2, and NZVI/H2O2 have inhibition effects on both the Chl a contents and photosynthetic pigments, with the Chl a removal efficiency of 47.3%, 80.5%, and 90.7% on the 5th day, respectively; moreover, the variation of ζ potential is proportional to that of the Chl a removal efficiency. The malondialdehyde content and superoxide dismutase activity are firstly increased and ultimately decreased to mitigate the oxidative stress under all the treatments. Compared with NZVI treatment alone, the oxidation of the H2O2 and NZVI/H2O2 processes can effectively destroy the antioxidant enzyme system and then inactivate the cyanobacterial cells, which further leads to the release of photosynthetic pigments and intracellular organic matters (IOM); in addition, the IOM removal efficiency (in terms of TOC) is 61.3% and 54.1% for the H2O2 and NZVI/H2O2 processes, respectively. Although NZVI is much more effective for extracellular organic matters (EOM) removal, it is less effective for IOM removal. The results of the three-dimensional EEM fluorescence spectra analysis further confirm that both H2O2 and NZVI/H2O2 have the ability to remove fluorescent substances from EOM and IOM, due to the oxidation mechanism; while NZVI has no removal effect for the fluorescent substances from EOM, it can remove part of fluorescent substances from IOM due to the agglomeration. All the results demonstrate that the NZVI/H2O2 process is a highly effective and applicable technology for the removal of M. aeruginosa and AOMs.
Collapse
Affiliation(s)
- Yun Kong
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China
- College of Resources and Environment, Yangtze University, Wuhan 430100, China
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province, Hangzhou 310058, China
| | - Lipeng Ji
- College of Resources and Environment, Yangtze University, Wuhan 430100, China
| | - Yue Wang
- College of Resources and Environment, Yangtze University, Wuhan 430100, China
| | - Jiake Li
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China
| | - Hao Lu
- College of Resources and Environment, Yangtze University, Wuhan 430100, China
| | - Shuhong Mo
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China
| | - Xianxun Wang
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China
- College of Resources and Environment, Yangtze University, Wuhan 430100, China
| | - Liang Zhu
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province, Hangzhou 310058, China
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xiangyang Xu
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province, Hangzhou 310058, China
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xing Zheng
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China
| |
Collapse
|
6
|
Wang Y, Ma H, Wang X, Ju L, Tian L, Qi H, Yu H, He G, Li J. Study on the operation performance and floc adhesion mechanism of dissolved air flotation equipment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:54219-54233. [PMID: 35292900 DOI: 10.1007/s11356-022-19359-9] [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: 11/03/2021] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
As a critical air dissolving system, the performance of air flotation equipment directly determines the adhesion efficiency and pollutant removal efficiency of air flotation processes. The factors affecting the performance of air flotation equipment and the relationships between equipment performance and pollution removal efficiency were studied. The results show that when the dissolved gas pressure was 0.4 MPa and the air intake rate was 24 mL/min, the dissolved gas efficiency of the equipment reached its highest value of 55%, the average particle size of bubbles was maintained at 24 µm, and the dissolved oxygen (DO) content significantly increased. When the dissolved gas pressure was 0.4 MPa, the air intake rate was 24 mL/min, and the coagulant dose was 6 mg/L; the removal rates for turbidity, chlorophyll-a, total organic carbon (TOC), and UV absorbance at 254 nm (UV254) reached 95.76%, 96.41%, 34.21%, and 65.96%, respectively. The degree of pollutant removal was positively correlated with changes to the equipment performance parameters. Microbubbles (MBs) showed good removal of high-molecular weight, strongly hydrophobic organic matter and showed some removal of the trihalomethane formation potential (THMFP) of the water. The removal mechanism mainly depended on the hydrophobic interactions of the MBs with algae and organic matter. The flocs and MBs collided and adhered to form air-entrained flocs. The separation of air-entrained flocs depended on the relationship between the surface load and the rising velocity. The surface load has to be lower than the rising velocity of the minimum air-entrained flocs to ensure good effluent outcomes.
Collapse
Affiliation(s)
- Yonglei Wang
- College of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China.
| | - Huiyuan Ma
- College of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Xiaobo Wang
- Weifang Municipal Public Utilities Service Center, Weifang, 261041, China
| | - Ling Ju
- Shuifa Planning and Design Co., Ltd, Jinan, 250100, China
| | - Liping Tian
- Weifang Municipal Public Utilities Service Center, Weifang, 261041, China
| | - Hua Qi
- Xintai Tap Water Co., Ltd, Taian, 271299, China
| | - Haiyang Yu
- Shandong Haibang Water Technology Co., Ltd, Jinan, 250101, China
| | - Guilin He
- College of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Jingjing Li
- College of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| |
Collapse
|
7
|
Wang XX, Lin YL, Zhang TY, Dong ZY, Luo ZN, Hu CY, Tang YL, Xu B. Feasibility of UVC laser-activated persulfate with concentrated beam for micropollutant degradation in water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
8
|
Jegatheesan V, Shu L, Rene ER, Lin TF. Challenges in Environmental Science/Engineering and fate and innovative treatment/remediation of emerging pollutants. CHEMOSPHERE 2022; 292:133497. [PMID: 34995630 DOI: 10.1016/j.chemosphere.2021.133497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Solid waste Management: There are two articles in this section. Shi et al. (2021) investigated the unbalanced status and multidimensional influences of municipal solid waste management in Africa. It was identified that economic growth, urbanization and geographical location are the most critical factors influencing the unbalanced statue of MSW management in Africa.
Collapse
Affiliation(s)
- Veeriah Jegatheesan
- School of Engineering and Water: Effective Technologies and Tools (WETT) Research Centre, RMIT University, Melbourne, VIC, 3000, Australia.
| | - Li Shu
- School of Engineering, Edith Cowan University, 70 Joondalup Drive, Joondalup, Perth, WA, 6027, Australia; LJS Environment, Parkville, VIC, 3052, Australia
| | - Eldon R Rene
- UNESCO-IHE Institute for Water Education, Westvest 7, 2611, AX Delft, the Netherlands
| | - Tsair-Fuh Lin
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
| |
Collapse
|
9
|
Lin JL, Nugrayanti MS, Karangan A. Effect of Al hydrates on minimization of disinfection-by-products precursors by coagulation with intensified pre-oxidation towards cyanobacteria-laden water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 810:152251. [PMID: 34896494 DOI: 10.1016/j.scitotenv.2021.152251] [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: 10/24/2021] [Revised: 12/04/2021] [Accepted: 12/04/2021] [Indexed: 06/14/2023]
Abstract
Pre-oxidation is warranted to improve cyanobacteria removal and minimize disinfection by-products (DBPs) precursors for subsequent coagulation with polyaluminum chloride (PACl) in drinking water treatment. However, the reduction in DBP precursors strongly depends on the Al hydrates for PACl coagulation. This study aimed to investigate the effects of intensified NaOCl and ClO2 pre-oxidation on the removal of Microcystis aeruginosa (MA) and the corresponding halogenated DBP precursors by PACl coagulation with different Al hydrates. Two PACl coagulants, namely PACl-W with 51% monomeric Al and PACl-H with 71% polymeric Al, were used for FlocCAM jar test. The results have shown that the reductions in MA cell and algogenic organic matter (AOM) are more pronounced by sweep flocculation in PACl-W coagulation coupled with NaOCl pre-oxidation. In contrast, ClO2 pre-oxidation with PACl-H coagulation outperforms the floc formation and the reduction in each fluorescent DOM substance, especially for humic acid-like (HAL) substances reduction in response to charge neutralization. Regardless of pre-oxidation approach, PACl-H coagulation exhibits a superior reduction in carbonaceous DBP formation potential (C-DBPFP) comparative PACl-W coagulation, especially for intensified pre-oxidation (Cl2:DOC = 3:1). Intensified NaOCl pre-oxidation is effective to enhance DBPFP reduction in a similar way to ClO2 oxidation by coagulation with both PACl coagulants. In addition, it clearly demonstrates that the halogenated DBP precursors are well-correlated with UV254 absorbance on the basis of principal component analysis (PCA) inference. It is concluded that intensified NaOCl pre-oxidation is an alternative approach to ClO2 pre-oxidation for the minimization of DBP precursors in oxidation-coagulation processes for cyanobacteria-laden water treatment.
Collapse
Affiliation(s)
- Jr-Lin Lin
- Department of Environmental Engineering, Chung Yuan Christian University, Chung-Li, Taiwan, ROC; Center for Environmental Risk Management, College of Engineering, Chung Yuan Christian University, Chung-Li, Taiwan, ROC.
| | - Mega Sidhi Nugrayanti
- Department of Environmental Engineering, Chung Yuan Christian University, Chung-Li, Taiwan, ROC
| | - Arthur Karangan
- Department of Environmental Engineering, Chung Yuan Christian University, Chung-Li, Taiwan, ROC
| |
Collapse
|