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Zhang S, Yi X, He D, Tang X, Chen Y, Zheng H. Recent progress and perspectives of typical renewable bio-based flocculants: characteristics and application in wastewater treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:46877-46897. [PMID: 38980480 DOI: 10.1007/s11356-024-34199-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 06/27/2024] [Indexed: 07/10/2024]
Abstract
The research on bio-based flocculants for waste resource utilization and environmental protection has garnered significant attention. Bio-based flocculants encompass plant-based, animal-based, and microbial variants that are prepared and modified through biological, chemical, and physical methods. These flocculants possess abundant functional groups, unique structures, and distinctive characteristics. This review comprehensively discussed the removal rates of conventional pollutants and emerging pollutants by bio-based flocculants, the interaction between these flocculants and pollutants, their impact on flocculation performance in wastewater treatment, as well as their application cost. Furthermore, it described the common challenges faced by bio-based flocculants in practical applications along with various improvement strategies to address them. With their safety profile, environmental friendliness, efficiency, renewability, and wide availability from diverse sources, bio-based flocculants hold great potential for widespread use in wastewater treatment.
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Affiliation(s)
- Shixin Zhang
- School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing, 400074, People's Republic of China
- Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing, 400074, People's Republic of China
| | - Xiaohui Yi
- School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing, 400074, People's Republic of China
| | - Dilin He
- School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing, 400074, People's Republic of China
| | - Xiaomin Tang
- Chongqing Key Laboratory of Catalysis & Functional Organic Molecules, College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, People's Republic of China
| | - Yao Chen
- School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing, 400074, People's Republic of China.
- Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing, 400074, People's Republic of China.
| | - Huaili Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing, 400045, People's Republic of China
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Chandra S, Walsh KB. Microplastics in water: Occurrence, fate and removal. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 264:104360. [PMID: 38729026 DOI: 10.1016/j.jconhyd.2024.104360] [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: 12/10/2023] [Revised: 04/22/2024] [Accepted: 05/02/2024] [Indexed: 05/12/2024]
Abstract
A global study on tap water samples has found that up to 83% of these contained microplastic fibres. These findings raise concerns about their potential health risks. Ingested microplastic particles have already been associated with harmful effects in animals, which raise concerns about similar outcomes in humans. Microplastics are ubiquitous in the environment, commonly found disposed in landfills and waste sites. Within indoor environments, the common sources are synthetic textiles, plastic bottles, and packaging. From the various point sources, they are globally distributed through air and water and can enter humans through various pathways. The finding of microplastics in fresh snow in the Antarctic highlights just how widely they are dispersed. The behaviour and health risks from microplastic particles are strongly influenced by their physicochemical properties, which is why their surfaces are important. Surface interactions are also important in pollutant transport via adsorption onto the microplastic particles. Our review covers the latest findings in microplastics research including the latest statistics in their abundance, their occurrence and fate in the environment, the methods of reducing microplastics exposure and their removal. We conclude by proposing future research directions into more effective remediation methods including new technologies and sustainable green remediation methods that need to be explored to achieve success in microplastics removal from waters at large scale.
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Affiliation(s)
- Shaneel Chandra
- College of Science and Sustainability, School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton North, QLD 4702, Australia; Coastal Marine Ecosystems Research Centre, Central Queensland University, Gladstone Marina Campus, Bryan Jordan Drive, Gladstone, QLD 4680, Australia.
| | - Kerry B Walsh
- College of Science and Sustainability, School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton North, QLD 4702, Australia
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Sadeghi M. The untold story of starch as a catalyst for organic reactions. RSC Adv 2024; 14:12676-12702. [PMID: 38645516 PMCID: PMC11027044 DOI: 10.1039/d4ra00775a] [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: 01/30/2024] [Accepted: 04/04/2024] [Indexed: 04/23/2024] Open
Abstract
Starch is one of the members of the polysaccharide family. This biopolymer has shown many potential applications in different fields such as catalytic reactions, water treatment, packaging, and food industries. In recent years, using starch as a catalyst has attracted much attention. From a catalytic point of view, starch can be used in organic chemistry reactions as a catalyst or catalyst support. Reports show that as a catalyst, simple starch can promote many heterocyclic compound reactions. On the other hand, functionalized starch is not only capable of advancing the synthesis of heterocycles but also is a good candidate catalyst for other reactions including oxidation and coupling reactions. This review tries to provide a fair survey of published organic reactions which include using starch as a catalyst or a part of the main catalyst. Therefore, the other types of starch applications are not the subject of this review.
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Affiliation(s)
- Masoud Sadeghi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan P.O. Box: 87317-51167 Kashan Iran
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Mohtaram MS, Sabbaghi S, Rasouli J, Rasouli K. Photocatalytic degradation of tetracycline using a novel WO3-ZnO/AC under visible light irradiation: Optimization of effective factors by RSM-CCD. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123746. [PMID: 38460585 DOI: 10.1016/j.envpol.2024.123746] [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: 01/15/2024] [Revised: 02/10/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
Mitigating pharmaceutical pollution in the global environment is imperative, and tetracycline (TC) is a commonly utilized antibiotic in human and veterinary medicine. The persistent existence of TC highlights the necessity of establishing efficient measures to protect water systems and the environment from detrimental contaminants. Herein, a novel rhubarb seed waste-derived activated carbon-supported photocatalyst (WO3-ZnO/RUAC) was synthesized by combining wet impregnation and ultrasonic methods. The activated carbon (AC) was obtained from rhubarb seed waste for the first time via chemical activation. The function of AC as an electron acceptor and in separating electron-hole pairs was illuminated by characterization analyses that included XRD, FTIR, XPS, SEM, TEM, PL, EIS, TPC, and UV-DRS. Using the response surface methodology-central composite design (RSM-CCD) technique, the synthesis parameters of the composite were systematically optimized. Under ideal conditions, with a TC concentration of 33 mg. L-1, pH of 4.57, irradiation time of 108 min, and catalyst dose of 0.85 g. L-1, the highest degradation efficiency of TC by this composite, achieved 96.5%, and it was reusable for five cycles. Subsequently, trapping tests and electron spin resonance (ESR) analysis were conducted, elucidating that •OH and •O2- radicals played pivotal roles in the photocatalytic degradation of TC. This research offers valuable insights into utilizing the AC-based photocatalyst to degrade pharmaceutical micropollutants effectively.
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Affiliation(s)
- Mohammad Sina Mohtaram
- Department of Nano-Chemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran
| | - Samad Sabbaghi
- Department of Nano-Chemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran; Drilling Nanofluid Lab, Shiraz University, Shiraz, Iran; Nanotechnology Research Institute, Shiraz University, Shiraz, Iran.
| | - Jamal Rasouli
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
| | - Kamal Rasouli
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
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Bekchanov D, Mukhamediev M, Yarmanov S, Lieberzeit P, Mujahid A. Functionalizing natural polymers to develop green adsorbents for wastewater treatment applications. Carbohydr Polym 2024; 323:121397. [PMID: 37940289 DOI: 10.1016/j.carbpol.2023.121397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 11/10/2023]
Abstract
The present study provides an overview of scientific developments made in the last decade in the field of green adsorbents focusing on the modifications in natural polymers and their applications such as, wastewater treatment, and ion exchange. For this purpose, an introduction to the various methods of modifying natural polymers is first given, and then the properties, application, and future priorities of green adsorbents are also discussed. Methods of modification of natural polymers under homogeneous and heterogeneous conditions using modifiers with different properties are also described. Various methods for modifying natural polymers and the use of the obtained green adsorbents are reviewed. A comparison of the sorption properties of green adsorbents based on natural polymers and other adsorbents used in industry has also been carried out. With the participation of green adsorbents based on natural polymers, the properties of treated wastewaters having toxic metal ions, organic dyes, petroleum products, and other harmful compounds was analyzed. Future perspectives on green adsorbents based on natural polymers are as also highlighted.
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Affiliation(s)
- Davronbek Bekchanov
- Department of Polymer Chemistry, Faculty of Chemistry, National University of Uzbekistan, Tashkent 100174, Uzbekistan.
| | - Mukhtar Mukhamediev
- Department of Polymer Chemistry, Faculty of Chemistry, National University of Uzbekistan, Tashkent 100174, Uzbekistan
| | | | - Peter Lieberzeit
- Faculty for Chemistry, Department of Physical Chemistry, University of Vienna, Vienna A-1090, Austria
| | - Adnan Mujahid
- School of Chemistry, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
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Guo K, Yu C, Gao B, Liu B, Wang Z, Wang Y, Yue Q, Gao Y. Intrinsic mechanism for the removal of antibiotic pollution by a dual coagulation process from the perspective of the interaction between NOM and antibiotic. WATER RESEARCH 2023; 244:120483. [PMID: 37633212 DOI: 10.1016/j.watres.2023.120483] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/03/2023] [Accepted: 08/12/2023] [Indexed: 08/28/2023]
Abstract
Antibiotics bring potential risks to human health and ecosystem, and their coexistence with natural organic matters (NOMs) could have harmful impacts on the environment. Herein, a polyaluminium chloride (PAC)-polydimethyl diallyl ammonium chloride (PDMDAAC) dual coagulation process was designed to remove the co-pollutants of chlortetracycline (CTC) and humic acid (HA), representing antibiotics and NOMs, respectively. The main research strength was given to understand molecular interactions and their mechanisms associated with the coagulation and flocculation. We found that the co-existing HA and CTC increased the hydrophily and stability of contaminants, and generated HA@CTC complexes with large particles size. The interaction mechanism between CTC and HA was mainly hydrogen bonding, hydrophobic association action, n-π* electron donor-acceptor interaction, and π-π* conjugation. Lewis acid-base interaction was the main force between HA and CTC. The bonding energies of OH…N, OH…O, and hydrophobic association were -12.2 kcal/mol, -13.1 kcal/mol, and -11.4 kcal/mol, respectively, indicating that hydrogen bonding was stronger than hydrophobic association. The interactions between HA and CTC could improve their removal efficiency in the coagulation process. This is due to that the functional groups (COOH and OH) in the HA@CTC could be adsorbed by Al based hydrolysates. Polar interaction dominated the CTC and HA removal, and PAC was more efficient than PDMDAAC to remove HA@CTC complexes due to its higher complexing capacity. Thanks to the low concentration of residual contaminants and the formation of large and loose flocs, the interaction of HA and CTC could alleviate membrane fouling during ultrafiltration process. This study will provide new insight into the efficient removal of combined pollution and membrane fouling control.
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Affiliation(s)
- Kangying Guo
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266000, PR China
| | - Chenghui Yu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266000, PR China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266000, PR China
| | - Beibei Liu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266000, PR China
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266000, PR China
| | - Yan Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266000, PR China
| | - Qinyan Yue
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266000, PR China
| | - Yue Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266000, PR China.
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Liang X, Wu M, Yang Y, Liu D, Li X. Shale gas hydraulic fracturing flowback fluid treatment using a modified vortex flocculation reactor: Effects of the axial and tangential inlet angles. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Application of hydrodynamic cavitation in the field of water treatment. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02754-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Ban W, Yang Q, Huang W, Li X, Wang Z, Chen S, Xiang L, Yan B. Mussel-Inspired Catechol-Grafted Quaternized Chitosan Flocculant for Efficiently Treating Suspended Particles and Refractory Soluble Organic Pollutants. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Wenzheng Ban
- National Engineering Laboratory for Clean Technology of Leather Manufacture, College of Biomass Science and Engineering, Sichuan University, Chengdu610065, China
| | - Qin Yang
- National Engineering Laboratory for Clean Technology of Leather Manufacture, College of Biomass Science and Engineering, Sichuan University, Chengdu610065, China
| | - Wenhuan Huang
- Chunliang Oil Production Plant of Shengli Oilfield, Sinopec, Binzhou City, Shandong256504, China
| | - Xingliang Li
- Gansu Tobacco Industry Co., Ltd, Lanzhou730050, China
| | - Zhicai Wang
- Gansu Tobacco Industry Co., Ltd, Lanzhou730050, China
| | - Sheng Chen
- National Engineering Laboratory for Clean Technology of Leather Manufacture, College of Biomass Science and Engineering, Sichuan University, Chengdu610065, China
| | - Li Xiang
- Jiangsu Key Laboratory for Design & Manufacture of Micro/Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing211189, China
| | - Bin Yan
- National Engineering Laboratory for Clean Technology of Leather Manufacture, College of Biomass Science and Engineering, Sichuan University, Chengdu610065, China
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Advances in the role of natural gums-based hydrogels in water purification, desalination and atmospheric-water harvesting. Int J Biol Macromol 2022; 222:2888-2921. [DOI: 10.1016/j.ijbiomac.2022.10.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 09/01/2022] [Accepted: 10/08/2022] [Indexed: 11/05/2022]
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