Article
Agricultural Engineering
Kaichong Wang, Zhen Zhou, Jiaxin Qiang, Siqi Yu, Xinqi Wang, Yao Yuan, Xiaodan Zhao, Yangjie Qin, Kaiqi Xiao
Summary: The study developed a CEPT-AIR-BAF process for efficient pollutants removal, which achieved good treatment results in pilot-scale testing, showing great potential for practical applications.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Kaichong Wang, Zhen Zhou, Jiaxin Qiang, Siqi Yu, Xinqi Wang, Yao Yuan, Xiaodan Zhao, Yangjie Qin, Kaiqi Xiao
Summary: The study constructed a novel CEPT-AIR-BAF process for efficient pollutants removal by coupling CEPT, AIR, and BAF in series, achieving good effluent quality with reduced land occupation and upfront investment.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Francois-Johan Chassaing, Rovshan Mahmudov, Chris D. Metcalfe, Viviane Yargeau
Summary: Catalytic ozonation achieves equivalent disinfection to conventional ozonation with reduced ozone dose, enhances removal of emerging contaminants, and effectively removes compounds with low reaction rates with ozone. Catalytic ozonation utilizes hydroxyl radicals to improve pollutant removal efficiency compared to ozonation alone.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Ali Nikoonahad, Abdolmajid Gholizadeh, Mohammad Taghi Ghaneian, Ali Paseban, Nayera Naimi, Mahdi Ghorbanian, Mahmoud Taghavi, Amir Mohammadi, Ali Abdolahnejad, Bagher Moradi
Summary: The use of treated wastewater can solve the issue of water shortage, improve soil fertility, and reduce the use of chemical fertilizers. The study introduces a novel integrated membrane biological aerated filter (IMBAF) system for high-quality wastewater treatment and recycling, aiming to decrease treatment costs and enhance the efficiency of wastewater reuse.
Article
Engineering, Environmental
Xiang Mei, Mengyuan Ma, Zhongwei Guo, Wentian Shen, Yong Wang, Lijie Xu, Zimiao Zhang, Yang Ding, Yanyan Xiao, Xu Yang, Rong Jiang, Ying Zhang, Chengqi Yin, Yixuan Wang
Summary: The combination of a low-aeration-pressure PMABR and a BAF effectively treats toxic UFR wastewater by reducing energy consumption and providing organic carbon sources for denitrification. This innovative approach achieved high removal rates of FA, COD, and TN, demonstrating a cleaner treatment of UFR wastewater in an economical manner.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Woongbae Lee, Sangki Choi, Hyunjin Kim, Woorim Lee, Minju Lee, Heejong Son, Changha Lee, Min Cho, Yunho Lee
Summary: This study assessed and compared the efficiencies of ozonation and ozone with hydrogen peroxide for the removal of organic micropollutants (OMPs), as well as the inactivation of bacteria and viruses, and the formation of bromate and biodegradable organics in municipal wastewater effluent. The results showed that ozonation effectively eliminated 39 OMPs, with 22 OMPs achieving a removal rate of 54 ± 14% at an ozone dosage of 0.5 gO(3)/gDOC. The concentration and exposure time of ozone were positively correlated with microbial inactivation levels, and O-3/H2O2 minimized bromate formation but decreased bacteria/virus inactivation. Ozonation also produced biodegradable organics, which could be removed through post-biodegradation treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Qingchao Liu, Guang Yang, Na Lu, Yanmei Yin, Hui Jia, Jie Wang
Summary: In this study, a novel filter (BFD-filler) prepared using blast furnace dust (BFD) was applied to treat domestic wastewater in a biological aerated filter (BAF). The optimization of reactor operation and the mechanism of BAF enhancement by inner-electrolysis were investigated. The results showed that BFD-BAF achieved significantly higher removal rates of COD and NH4+-N compared to the conventional process, and the addition of BFD-filler affected the bacterial community and enhanced bacterial abundance and specificity in BAF.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Lam Thanh Phan, Heidemarie Schaar, Ernis Saracevic, Jorg Krampe, Norbert Kreuzinger
Summary: The study found that ozonation led to a dose-dependent increase in biological activity, particularly for substances that are recalcitrant to biodegradation. Additionally, ozonation enhanced the degradation potential of COD and BDOC, while also partially mineralizing organic compounds. These results suggest that a combination of ozonation and biological post-treatment can contribute to sustainable water resource management by reducing biodegradable organic carbon emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Aviad Avraham, Akachukwu Favour Nwaobi, Michal Sela-Adler, Amit Gross, Roy Bernstein
Summary: This study suggests a multistep onsite wastewater treatment system that is capable of effectively treating wastewater in varying conditions and producing high-quality effluent suitable for reuse.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Z. Amadou Yacouba, J. Mendret, G. Lesage, F. Zaviska, S. Brosillon
Summary: This study developed an innovative integrated membrane and oxidation system for domestic wastewater treatment, combining MBR, NF, and ozonation. The NF process effectively rejected selected organic micropollutants, while ozonation achieved successful degradation of various pharmaceuticals. Pre-ozonation significantly reduced NF fouling resistance.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Silin Chen, Chengxiu Wu, Benru Song, Philip Antwi, Ming Chen, Wuhui Luo
Summary: A two-stage biological aerated filter (BAF) was used for steady nitrogen removal in wastewater from a mining area, but cost efficiency of the medium and carbon source hindered development. Different media and soluble carbon sources were compared, with volcanic and quartz showing favorable performance and acetate being suitable for all chosen media-packed BAFs. Sweet potato residues were found to reduce added acetate amount, while specific bacterial communities were identified in volcanic and zeolite-packed BAFs contributing to efficient nitrogen removal.Deployment of volcanic medium and acetate soluble carbon source was proposed for optimal operational performance.
Article
Engineering, Environmental
Vladislav Knytl, Pavel Masin, Vera Vlckova, Jaroslav Semerad, Klara Michalikova, Petra Najmanova, Tomas Cajthaml
Summary: This study evaluated the feasibility of using photooxidation UV/H2O2 technology as a tertiary treatment step for the removal of pharmaceuticals in wastewater treatment plants. The technology was compared with activated carbon adsorption, and both methods were found to effectively remove over 95% of the target pharmaceuticals during long-term testing. Ecotoxicity evaluations showed no increased toxicity compared to the inflow water samples for both treatment systems. From an economic perspective, the UV/H2O2 system was found to be more economically feasible in terms of operational costs.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xinghao Liu, Zhaoguang Yang, Jiayun Peng, Leilei Chen, Ying Yang, Haipu Li, Liqun Yang
Summary: The study investigated the advanced treatment of secondary effluents using heterogeneous catalytic ozonation integrated with a biological aerated filter (BAF) process. The results showed that catalytic ozonation significantly improved pollutant removal and broke down macromolecules using hydroxyl radicals. The BAF process reduced COD from 54.26 to 32.56 mg/L, while coupling catalytic ozonation with BAF achieved a reduction to 14.65 mg/L (73% removal ratio). NH4+-N decreased from 77.43 to 22.69 mg/L and 15.73 mg/L (70% removal ratio) in the BAF and catalytic ozonation coupled with BAF, respectively. The integrated process provides efficient and sustainable treatment of secondary effluents.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Jennifer E. Schollee, Juliane Hollender, Christa S. McArdell
Summary: The study evaluated different wastewater treatment setups for the removal of micropollutants using high-resolution mass spectrometry data. Results showed that biological treatment effectively removed most non-target features and industrial features, while advanced treatment could remove an additional portion of non-target features and was crucial for the abatement of certain known micropollutants.
Review
Engineering, Environmental
Jia Li, Zhiwei Wang, Yayi Wang
Summary: Membrane aerated biofilm reactors (MABRs) are an energy-efficient technology for biological nitrogen removal (BNR), which can bring wastewater treatment plants (WWTPs) closer to carbon neutrality. MABRs use gas-permeable hydrophobic membranes to supply oxygen and serve as carriers for biofilm attachment. This review summarizes the characteristics and advantages of MABRs, as well as their application in coupling with novel BNR processes. It also discusses the potential of MABRs in upgrading existing WWTPs and the integration of PN/A process into MABRs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Liya Fu, Changyong Wu, Yuexi Zhou, Jiane Zuo, Yan Ding
ENVIRONMENTAL TECHNOLOGY
(2017)
Article
Biotechnology & Applied Microbiology
Xiao-Ling Li, Liang Zhang, Bai-Kun Li, Chang-Yong Wu, Yong-Zhen Peng
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2018)
Article
Engineering, Environmental
Siyu Zhang, Changyong Wu, Yuexi Zhou, Yaning Wang, Xuwen He
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Environmental Sciences
Changyong Wu, Yuexi Zhou, Siyu Zhang, Min Xu, Jiamei Song
Article
Environmental Sciences
Changyong Wu, Yanan Li, Yuexi Zhou, Zhimin Li, Siyu Zhang, Hengming Liu
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Article
Environmental Sciences
Min Xu, Changyong Wu, Yanan Li, Yuexi Zhou, Hao Xue, Yin Yu
WATER AIR AND SOIL POLLUTION
(2018)
Article
Environmental Sciences
Liya Fu, Changyong Wu, Yuexi Zhou, Jiane Zuo, Guangqing Song, Yu Tan
Article
Environmental Sciences
Liya Fu, Changyong Wu, Yuexi Zhou, Jiane Zuo, Guangqing Song
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Engineering, Environmental
Xiumei Sun, Changyong Wu, Yuexi Zhou, Wei Han
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Environmental Sciences
Liya Fu, Changyong Wu, Jian'e Zuo, Yuexi Zhou, Jin Yang
Summary: The presence of residual ozone significantly enhanced the removal of organics in biological processes, with a stimulating effect observed at low dosages but inhibitory effects at high dosages. Proper control and management of residual ozone in the integrated O3-BAF are crucial for optimizing microbial communities and activity.
Article
Environmental Sciences
Chunli Wan, Aoxuan Qu, Liyan Deng, Xiang Liu, Changyong Wu
Summary: This study successfully detected the presence of antibiotic-resistant genes in water environments using electrochemical sensor technology, confirming the specificity and sensitivity of this method.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Chemistry, Physical
Jin Yang, Liya Fu, Fachao Wu, Xingxing Chen, Changyong Wu, Qibao Wang
Summary: This paper systematically summarizes the methods for adjusting the pore structure of activated carbon and reviews the effects of pore structure on catalytic ozonation and mass transfer. It is found that large external surface area and reasonable pore size distribution are conducive to catalytic ozonation and mass transfer.
Review
Environmental Sciences
Xiaoguang Jin, Changyong Wu, Liya Fu, Xiangmiao Tian, Panxin Wang, Yuexi Zhou, Jiane Zuo
Summary: This review systematically summarizes the current research status of nanocatalysts in catalytic ozone oxidation, finding that most nanocatalysts are still in the laboratory research stage. The defects of nanocatalysts such as easy aggregation, difficult separation, and easy leakage lead to resource waste, economic loss, and potential adverse effects on the ecosystem and human health. Coupling nano-catalyst and membrane, supported nanocatalysts, and magnetic nanocatalysts are promising methods to solve these problems and promote the actual application of nanocatalysts in wastewater treatment.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Agricultural Engineering
Guangqing Song, Hongbo Xi, Yuexi Zhou, Liya Fu, Xin Xing, Changyong Wu
BIORESOURCE TECHNOLOGY
(2017)