Review
Chemistry, Multidisciplinary
Pan Wang, Huixuan Zhang, Zhuohan Wu, Xiao Zhao, Ying Sun, Na Duan, Zhidan Liu, Wen Liu
Summary: Persulfate-based advanced oxidation processes (AOPs) using sulfate radicals have attracted attention for organic contaminants degradation. This study compared different activation methods and oxidants in the degradation performance of the target contaminant. pH also affected the degradation efficiency. The molecular structure of the contaminant and degradation pathways were analyzed.
CHINESE CHEMICAL LETTERS
(2023)
Article
Environmental Sciences
Yiting Luo, Rongkui Su, Haisong Yao, Aoshan Zhang, Siyuan Xiang, Lei Huang
Summary: The study found that free radical reactions in UV-activated persulfate systems significantly promoted the degradation of trimethoprim (TMP). Factors such as persulfate concentration, natural organic matter, and chloride ions all influence the degradation rate of TMP. Transition metal ions in industrial wastewater have a synergistic effect on TMP degradation in UV/PS systems.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Pericles Parthenidis, Eleni Evgenidou, Dimitra Lambropoulou
Summary: One negative aspect of landfilling is the production of multicomponent dark liquids containing various chemical pollutants. Effective treatment methods like UV/Fe2+/H2O2 and UV/Fe2+/S2O82- processes are evaluated for degradation of landfill leachate. Factors such as [Fe2+]/[Oxidant] ratio, UV light, dosing mode, and pretreatment by a physicochemical process are examined for their influence. Best removal efficiencies for COD, TOC, and color index are achieved under specific operating conditions, with UV/Fe2+/S2O82- process showing better performance despite the influence of sulfate radical selectivity.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Tan Meng, Xiao Su, Peizhe Sun, Wenjun Sun, Domenico Santoro, Hong Yao, Hui Wang
Summary: This study aimed to optimize the energy consumption and reduce the precursor chemical usage of various UV-based AOPs through mathematical modeling and experimental validation. New mathematical approaches were proposed to measure effective light absorbance and photoreactor wall reflectance, and an equation was derived for UV/H2O2 to determine the most cost-effective precursor chemical dose. The findings of this study can contribute to the energy optimization of UV-based AOPs in engineering applications.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Lianghu Su, Kaiyang Chen, Yiqing Cai, Tianyu Sheng, Sujuan Chen, Huiming Xiang, Yang Deng, Chaoqun Tan
Summary: This study compares and evaluates the UV/PS and heat/PS systems for advanced treatment of biologically pre-treated incineration leachate. The results show that the UV365 nm/PS system has the highest removal efficiency for various pollutants. Moreover, the study highlights the potential interference of PS on COD detection.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Chemistry, Multidisciplinary
Ines M. F. Cardoso, Rita M. F. Cardoso, Joaquim C. G. Esteves da Silva
Summary: Water quality management is a priority issue, with the need for new technologies to meet strict regulations and address challenges in limited water resources. Nanomaterials play a crucial role in advancing research on advanced oxidation processes.
Article
Engineering, Environmental
Anaelle Gabet, Helene Metivier, Christine de Brauer, Gilles Mailhot, Marcello Brigante
Summary: UVB radiation is more efficient in generating radicals, while the persulfate system shows higher efficiency in oxidant precursors. The Yeast Estrogen Screen assay is used to track estrogen degradation and ensure removal of estrogenic activity.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Tan Meng, Wenjun Sun, Xiao Su, Peizhe Sun
Summary: This study derived a simple equation for theoretical optimal concentration of H2O2 in the UV/H2O2 AOP, which was validated using a comprehensive kinetic model. The equation was applied to 77 environmental water samples, introducing the concept of practical optimal oxidant dose while minimizing operation costs. The study also showed the potential extension of the simple equation to other UV-based AOPs.
Review
Engineering, Environmental
Haoyu Luo, Hengyi Fu, Hua Yin, Qintie Lin
Summary: Many researchers have focused on the progress of carbon materials in PS-AOPs due to their advantages, but the specific relationship between the structures of carbon materials and their activities has not been thoroughly reviewed. Furthermore, methods to switch reaction pathways in carbonpersulfate-based AOPs have not been systematically explored, indicating the need for further research in this area.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Engineering, Environmental
Sihyeon Jo, Sujin Im, Seunghyun Weon, Hyeyoung Shin, Jonghun Lim
Summary: Reduced TiO2 nanotube arrays (r-TNAs) have emerged as promising environmental materials for efficient treatment of persistent organic pollutants (POPs) resistant to conventional biological treatment. r-TNAs possess superior conductivity and solar light absorption, as well as well-organized open channel structures for efficient mass transfer. Additionally, r-TNAs can be grown directly on substrates without the use of adhesives, improving their durability and reusability. This paper provides a comprehensive review of r-TNAs in advanced oxidation processes (AOPs), including their fabrication techniques, appealing properties, and potential applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Lu Chen, Hongchao Li, Jieshu Qian
Summary: The degradation of roxarsone (ROX) via UV-based advanced oxidation processes (AOPs) was investigated, with UV/PDS being the most effective in removing ROX and UV/H2O2 being the most effective in reducing total organic carbon (TOC). The degradation of ROX follows a pseudo-first-order kinetics model, with a significant enhancement observed at pH 11.0 in UV/PMS process.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Engineering, Environmental
Stefanos Giannakis, Kun-Yi Andrew Lin, Farshid Ghanbari
Summary: SR-AOPs have gained significant attention in recent years for their versatility and efficacy in disinfection and decontamination. These processes, which generate sulfate radicals or sulfate and hydroxyl radicals, have been successfully applied in the treatment of various industrial wastewater, providing a potential solution for better wastewater treatment practices.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Environmental Sciences
Eva Domingues, Maria Joao Silva, Telma Vaz, Joao Gomes, Rui C. Martins
Summary: Agro-industrial wastewater management is becoming increasingly important as environmental regulations become stricter worldwide. These wastewaters are known for high organic pollutant content, which adversely affects water bodies. Industries are seeking efficient, user-friendly, and affordable treatment processes. Sulfate radical based advanced oxidation processes (S-AOPs) are emerging as suitable alternatives for treating agro-industrial effluents. This review discusses the major findings regarding the application of this technology for real agro-industrial wastewater treatment, comparing it with Fenton's process, which is widely studied and highly efficient in treating agro-industrial effluents. Promising results have been achieved in existing studies, but there is still a lack of research in this area and using this technique.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Engineering, Chemical
P. V. Nidheesh, G. Divyapriya, Fatima Ezzahra Titchou, Mohamed Hamdani
Summary: This article extensively discusses various aspects of sulfate radicals based advanced oxidation processes (SR-AOPs) in treating textile wastewaters, including activation processes, reactive molecules and radicals species, performance evaluations, comparisons with other AOPs, and studies on experimental scales.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Jhih-Yang Yin, Haitao Wang, Kuo-Pin Yu, Jechan Lee, Kun-Yi Andrew Lin
Summary: Cobalt sulfide was developed as a heterogeneous catalyst for degrading PBSA by activating monopersulfate. The cobalt sulfide nanoplates demonstrated significantly higher catalytic activities for removing PBSA from water compared to the reference catalyst.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.