Review
Environmental Sciences
Yi-Lin Zhang, Wen-Long Wang, Min-Yong Lee, Zheng-Wei Yang, Qian-Yuan Wu, Nan Huang, Hong-Ying Hu
Summary: The use of VUV/UV-AOPs for eliminating trace organic contaminants in wastewater has gained attention, but the mechanisms and influencing factors are not well understood. Further research and optimization are needed for this promising method.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Engineering, Environmental
Golnoosh Khajouei, Harry O. O. Finklea, Lian-Shin Lin
Summary: Advanced oxidation processes (AOPs), including UV/chlorine, have gained attention as alternatives to conventional water treatment technologies. UV/chlorine process offers multiple disinfection modes and maintains chlorine residuals, while also having advantages like higher radical production efficiency. This process has been applied to degrade a wide range of organic and inorganic compounds. This review evaluates the efficiency of UV/chlorine process and discusses strategies to tackle the formation of disinfection by-products (DBPs).
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Green & Sustainable Science & Technology
Wei-Ran Han, Wen-Long Wang, Zheng-Wei Yang, Hang Su, Chen-Xin Xu, Qian-Yuan Wu
Summary: The removal of trace organic contaminants is crucial for treating contaminated water and reducing associated risks. Ozonation, while commonly used for this purpose, can generate harmful oxidation byproducts. Toxic byproducts are often observed during ozonation of various contaminants, and their toxicity varies with the efficiency of contaminants removal.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Les D. Warren, Meaghan E. Guyader, Richard L. Kiesling, Christopher P. Higgins, Heiko L. Schoenfuss
Summary: The study found that exposure to trace organic contaminant mixtures resulted in decreased feeding efficiency in larval fathead minnows. Effects on adult fishes were mixed, with male sunfish showing a significant induction of vitellogenin levels.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Engineering, Environmental
Lei Guo, Ming Zhang, Shuqian Xie, Zhiqiang Xiao, Wenquan Sun, Yanhua Xu, Jun Zhou, Yongjun Sun
Summary: In this study, a salt-tolerant Fe-Bi@γ-Al2O3 catalyst was prepared and its catalytic performance and mechanism in treating high-salinity organic wastewater were investigated.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
Tutuk Djoko Kusworo, Dani Puji Budiyono
Summary: This article introduces the integration of photocatalytic reaction and membrane separation for wastewater treatment, and discusses the technical limitations for its application. Different types of photocatalysts combined with membranes are presented for improving performance and compatibility. The review outlines the enhanced performance of photocatalytic membranes in wastewater treatment and water reclamation. Photocatalysts enhance membrane separation by inducing anti-fouling and self-cleaning properties, as well as antibacterial activity.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Chemical
Peng Jiang, Jing-jing Zhou, Qing Zhou, Fang-yuan Xiang, Jin-An Wang, Xiao-Long Zhou
Summary: This study presents an efficient method for treating wastewater with a high benzotriazole concentration, using a combinational UV/H2O2/O-3 system under basic conditions. By introducing O-3 to the UV/H2O2 system, the degradation of benzotriazole can be promoted, with the optimal conditions leading to complete removal of BTZ and a significant reduction in COD.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Review
Engineering, Environmental
Ze Liu, Kristof Demeestere, Stijn Van Hulle
Summary: Ozone-based advanced oxidation processes (AOPs) are crucial for removing TrOCs from water. This review discusses the application of ozone-based AOPs in various types of water, analyzes the mechanisms of oxidation by-products generation, and compares the energy consumption during their application.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Engineering, Environmental
Hao Weng, Yang Yang, Chen Zhang, Min Cheng, Wenjun Wang, Biao Song, Hanzhuo Luo, Deyu Qin, Cheng Huang, Fanzhi Qin, Keteng Li
Summary: The discharge of organic wastewater is a serious threat to the ecosystem and human health. Advanced oxidation processes (AOPs) have been extensively studied for their effective removal of recalcitrant organic pollutants in wastewater treatment. In particular, the use of iron oxide hydroxide (FeOOH)-mediated AOPs systems has gained popularity due to their excellent catalytic performance and wide applicability. This review presents the recent progress of FeOOH-based catalysts in organic wastewater treatment, with a focus on photocatalytic oxidation, Fenton-like oxidation, catalytic ozonation, and persulfates activation processes. The review also discusses the diverse crystal phases of FeOOH and the main aqueous chemistry factors affecting the degradation efficiency of FeOOH-mediated AOPs. The review concludes with a brief summary of application tips and proposes future prospects for the application of FeOOH-mediated AOPs in organic wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Mechanical
Maarten Nagels, Brent Verhoeven, Nicolas Larche, Raf Dewil, Barbara Rossi
Summary: This study examines the corrosion of lean duplex stainless steel alloys when used as construction materials in advanced oxidation processes. Electrochemical and immersion experiments were conducted using wastewater subjected to ozone or Fenton oxidation. The results of the electrochemical experiments show that the presence of dissolved ozone does not increase pitting susceptibility for any of the alloys tested. However, the application of Fenton reagents induces pitting corrosion in the studied lean duplex alloys. The immersion experiments demonstrate that crevice corrosion occurs during wastewater treatment with both ozone and Fenton reagents.
ENGINEERING FAILURE ANALYSIS
(2022)
Review
Chemistry, Multidisciplinary
Ke Tian, Limin Hu, Letian Li, Qingzhu Zheng, Yanjun Xin, Guangshan Zhang
Summary: This paper summarizes the production of sulfate radicals through persulfate activation and analyzes the existing problems of persulfate-based advanced oxidation processes, providing corresponding solutions.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Gaoyan Shao, Zhiyong Zhou, Yuming Tu, Jianjie Chen, Fan Zhang, Shichao Tian, Zhongqi Ren
Summary: A novel calcium-based catalyst was prepared and used for the treatment of high-salt organic wastewater, showing higher efficiency in removing chemical oxygen demand (COD) compared to single ozonation. The catalyst exhibited good catalytic performance and outperformed other catalysts reported in the literature.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Environmental
Sara Ouali, Pierre-Francois Biard, Patrick Loulergue, Rukun You, Noureddine Nasrallah, Rachida Maachi, Anthony Szymczyk
Summary: This study aims to assess the feasibility of a hybrid ozonation/nanofiltration membrane process to simultaneously oxidize and reject contaminants while reducing membrane fouling. By using an innovative monophasic configuration with pre-ozonated water and H2O2-doped water, the study successfully avoided ozone-enriched gas flow in the membrane cell and achieved high ozone removal yields.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Zhi-Wei Lin, Emma F. Shapiro, Francisco J. Barajas-Rodriguez, Arsen Gaisin, Mohamed Ateia, John Currie, Damian E. Helbling, Rosa Gwinn, Aaron I. Packman, William R. Dichtel
Summary: Trace organic contaminants (TrOCs) pose significant challenges to wastewater treatment, and cross-linked beta-cyclodextrin (beta-CD) polymers show promise in removing TrOCs from complex water matrices.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Engineering, Environmental
Naipeng Lin, Yishu Gong, Ruotong Wang, Yin Wang, Xiaodong Zhang
Summary: Perovskite, with its low cost, high stability, excellent catalytic activity, diverse structure, and strong conversion adaptability, has attracted widespread attention in the field of modern environmental catalysis. By coupling perovskite catalysts with advanced oxidation processes, it is possible to effectively remove organic pollutants from wastewater.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Xuetong Yang, Pieter-Jan De Buyck, Rui Zhang, Dave Manhaeghe, Hao Wang, Licai Chen, Yunliang Zhao, Kristof Demeestere, Stijn W. H. Van Hulle
Summary: This study evaluated the feasibility of using packed bubble columns in the treatment of biotreated landfill leachate, and found that packed bubble columns have higher O3 utilization efficiency and lower energy consumption.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
Rui Zhang, Lutian Wang, Fida Hussain Lakho, Xuetong Yang, Veerle Depuydt, Wouter Igodt, Hong Quan Le, Diederik P. L. Rousseau, Stijn Van Hulle
Summary: This study investigates the effectiveness of iron oxide coated sand (IOS) granules, a recycled waste product, in removing phosphorus from goat farm wastewater. The results demonstrate that IOS granules have a high specific surface area and good phosphorus adsorption capacity, indicating their potential application in wastewater treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Energy & Fuels
Xian Zhang, Fangyuan Chen, Shiwang Liu, Jian Lou, Wanpeng Liu, Diederik P. L. Rousseau, Stijn Van Hulle
Summary: In this study, hydrochars derived from different biomass sources were synthesized by hydrothermal carbonization and their physicochemical properties and adsorption behavior of methylene blue (MB) were investigated. The results showed that the hydrochars possessed oxygen-containing functional groups and the adsorption process was spontaneous. The adsorption capacity differed among hydrochars from different biomass sources, with the highest capacity observed for Mason pine-derived hydrochar, suggesting its potential application as an adsorbent in wastewater treatment.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
Ze Liu, Jianqun Wang, Xuetong Yang, Qian'en Huang, Kecheng Zhu, Yajiao Sun, Stijn Van Hulle, Hanzhong Jia
Summary: A large amount of microplastics and toxic substances were found in the leachates of disposable plastic face masks (DPFs). These DPFs leachates were confirmed to cause cytotoxicity and oxidative stress, and environmentally persistent free radicals (EPFRs) were generated. Surgical masks were shown to have higher risk than N95 respirators after exposure to water, releasing more microplastics, metals, and organic compounds, and generating more EPFRs.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Yongyuan Yang, Alex Ricoveri, Kristof Demeestere, Stijn Van Hulle
Summary: The complexity and dynamic characteristics of landfill leachate pose challenges for its treatment. A combined treatment process, including a one-stage partial nitrification-Anammox process, an O-3/H2O2 process, and a granular activated carbon filtration (GAC) process, was investigated. A surrogate-based ozone dose control strategy for the O-3/H2O2 process was evaluated. Results showed that this three-stage process achieved high removal rates of total nitrogen, COD, and micropollutants, satisfying discharge requirements. Real-time control of ozone dosing for COD removal was achieved through monitoring UVA(254) reduction. Cost analysis indicated that the combination of O-3/H2O2 and GAC as the main steps was more cost-effective in post-treatment. A dynamic operation strategy in response to leachate changes was recommended.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Fida Hussain Lakho, Asif Qureshi, Wouter Igodt, Hong Quan Le, Veerle Depuydt, Diederik P. L. Rousseau, Stijn W. H. Van Hulle
Summary: This study conducted a life cycle impact assessment of two different decentralized water treatment systems in Belgium using the Life Cycle Assessment tool. The results showed that these systems had a lower impact on the environment compared to their conventional alternatives in most impact categories. Therefore, decentralized water treatment systems can be considered environmentally beneficial under certain conditions.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Environmental Sciences
Yongyuan Yang, Alex Ricoveri, Kristof Demeestere, Stijn Van Hulle
Summary: This study investigates the impact of preceding ozonation on the adsorption of COD and MPs in leachate, and evaluates a new surrogate-based model for predicting MPs breakthrough. The results show that ozone reduces the adsorption affinity of COD and increases the adsorption of MPs in leachate. Furthermore, the developed model demonstrates good applicability for predicting MPs breakthrough.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Fida Hussain Lakho, Asif Qureshi, Laura De Donno Novelli, Veerle Depuydt, Teun Depreeuw, Stijn W. H. Van Hulle, Diederik P. L. Rousseau
Summary: Nature-based greywater treatment and reuse is an emerging option in urban areas. This study reports the performance of a green wall system called Total Value Wall (TVW) installed in a terrace house in Gent, Belgium for greywater treatment and reuse. The results indicate that the adapted TVW system can effectively treat greywater with higher pollutant loading rates, although issues with leakage and energy use need to be addressed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Hao Wang, Siyu Zhang, Can He, Run Yuan, Xu Wu, Shaoqing Guo, Xuwen He, Stijn W. H. Van Hulle
Summary: The ozone-based advanced oxidation process is efficient in degrading refractory organics in wastewater effluent, but its high energy consumption hinders widespread application. This study investigates the use of pre-coagulation enhanced catalytic ozonation for the treatment of biologically treated coking wastewater, and finds that pre-coagulation significantly improves the removal efficiency of organic pollutants.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Emma Deniere, Herman Van Langenhove, Stijn Van Hulle, Kristof Demeestere
Summary: Ozone-activated peroxymonosulfate process (O3/PMS) is a promising method for the removal of trace organic contaminants (TrOCs) from wastewater, but its effectiveness is limited compared to ozone oxidation. Spectral surrogate models based on UV absorbance and fluorescence can be used to predict TrOCs removal.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Hao Wang, Siyu Zhang, Xuwen He, Yongyuan Yang, Xuetong Yang, Stijn W. H. Van Hulle
Summary: This study compared the performance of single ozonation and two ozone-based advanced oxidation processes (AOPs) for polishing biotreated landfill leachate. The results showed that catalytic ozonation enhances direct ozone oxidation, while the O3/H2O2 process promotes indirect oxidation. The removal of UV-quenching substances correlated well with the elimination of MPs, providing a predictive model for high-strength leachate. The energy consumption of the processes varied depending on the desired COD removal efficiency.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xuetong Yang, Changtao Chen, Tao Zhang, Xiang Tian, Rui Zhang, Dave Manhaeghe, Yunliang Zhao, Shaoxian Song, Kristof Demeestere, Stijn W. H. Van Hulle
Summary: This study applied two minerals, lava rock and expanded clay aggregate (ECA), to build mineral-packed bubble columns (LBC and EBC) for enhancing O3 mass transfer and increasing the removal of micropollutants in bio-treated landfill leachate. The O3 gas-liquid mass transfer coefficient (kLa) and O3 decomposition coefficient (kd) were significantly increased in EBC and LBC compared to a non-packed bubble column (BC). The mineral-packed columns showed improved removal of O3-recalcitrant compounds and enhanced UV254 reduction, resulting from improved O3 mass transfer and the catalytic function of the minerals.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Rui Zhang, Xianchang Liu, Lutian Wang, Pan Xu, Kai Li, Xiaoxiao Chen, Rong Meng, Yuewu Pu, Xuetong Yang, Diederik P. L. Rousseau, Stijn W. H. Van Hulle
Summary: A novel WABR-CW system was developed to address the challenge of nutrient removal in decentralized wastewater treatment. The lab-scale experiment showed high removal efficiencies for COD (85-98%), NH4+-N (100%), TN (60-90%), and TP (85%-95%). The CW improved overall performance and provided denitrification capacity when the OLR was not optimal for the WABR.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Changtao Chen, Chuanlong Ma, Yongyuan Yang, Xuetong Yang, Kristof Demeestere, Anton Nikiforov, Stijn Van Hulle
Summary: A novel cascade reactor design was used to remove micropollutants from secondary municipal wastewater effluent, and the parameters such as gas flow rate, water flow rate, and discharge power greatly influenced the performance of the reactor. The utilization of different reactive oxygen species was improved by introducing an ozonation chamber preceding a dielectric barrier discharge plasma reactor. This study provides valuable insights and optimal settings for an energy-efficient removal of micropollutants from wastewater.
Article
Environmental Sciences
Nazia Hassan, Jente Lezy, Dries Parmentier, Henk Van Hulle
Summary: Electrocoagulation flotation (ECF) is a promising compact alternative technology for municipal wastewater treatment, achieving significant pollutant removal efficiencies. Both iron (Fe) and aluminum (Al) anodes showed promising results in treating rainy weather wastewater, with Fe ECF performing better at low current density.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
