Article
Environmental Sciences
Ivan Valles, Lucas Santos-Juanes, Ana M. Amat, Javier Moreno-Andres, Antonio Arques
Summary: The study found that chlorides interfere with the photo-Fenton process in a pH-dependent manner, with more pronounced interference in acidic conditions and slight promotion in neutral environments. Dissolved salts in seawater lead to higher inhibition of pollutant removal compared to NaCl experiments.
Article
Engineering, Environmental
Yunmei Liu, Hongyu Zhou, Kexin Wei, Chuanshu He, Ye Du, Yang Liu, Ruzhen Xie, Gang Yao, Bo Lai
Summary: In this study, a novel visible light catalytic system was proposed to overcome the limitations of traditional photo-Fenton reactions. The system exhibited efficient organic contaminant degradation in a broad pH range and the primary active species was identified as hydroxyl radical. Furthermore, the pH-dependent mechanism of Fe3+ reduction process and the triple role of H2O2 in the system were investigated.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Ling Zhao, Yi Sun, Dionysios D. Dionysiou, Ying Teng
Summary: This study investigated the effects of different reductants on the degradation of polychlorinated biphenyls (PCBs) in a pyrophosphate-modified Fenton-like (PMF) process. The results showed that the application of suitable reductants, particularly ascorbic acid (AA), can facilitate the removal of refractory organic pollutants in natural environments.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Hank Hui-Hsiang Lin, Angela Yu-Chen Lin
Summary: Cytostatic drugs are commonly found in wastewater effluents due to their poor biodegradability, but the Fe(III)-EDDS complex has shown to efficiently degrade cyclophosphamide and 5-fluorouracil under solar light. The addition of EDDS widens the operational pH range of the solar photo-Fenton process, and a suitable Fe(III):EDDS ratio and initial dissolved oxygen level impact the degradation performance. Rapid degradation of the drugs was achieved within 1.5 minutes in the solar photo-Fenton process, with potential for total mineralization under relatively low Fe(III) concentration and H2O2 dosage.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Gulnara Maniakova, Irene Salmeron, Marina Aliste, Maria Inmaculada Polo-Lopez, Isabel Oller, Sixto Malato, Luigi Rizzo
Summary: Solar photo-Fenton (SPF) and ozonation were compared for the degradation of emerging contaminants in urban wastewater. Ozonation had a faster degradation rate, while SPF had lower toxicity levels. Chronic toxicity was observed even after 80% removal of the contaminants by both methods.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Jingpi Gao, Gaofeng Liang, Xiaoran Liu, Kaiyong Cai, Jinghua Li
Summary: The study develops a photothermal-driven Cu2O-SnO2-Polydopamine (PDA) triple cubic heterostructures Fenton catalyst system, which exhibits strong photothermal capabilities in the NIR region and achieves higher degradation efficiency. The system significantly improves the energy conversion efficiency of Cu2O and exhibits excellent catalytic activity over a wide pH range using Rhodamine B (RhB) as the model dye. This study offers a novel approach for environmental remediation through the synergistic effect of photocatalysis and photothermal processes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Xiang Li, Xianyi Gan
Summary: This study explores the efficient removal of pharmaceuticals and personal care products in water using Cu-doped g-C3N4 for photo-Fenton degradation. The modified g-C3N4 shows improved solar light absorption and successfully removes a variety of micropollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Applied
A. Cruz del Alamo, R. Zou, M. Pariente, R. Molina, F. Martinez, Y. Zhang
Summary: The study evaluated LaCu0.5Mn0.5O3 as a heterogeneous electro-Fenton catalyst for the removal of methylene blue dye, demonstrating its remarkable activity and high stability under circumneutral and basic conditions.
Article
Engineering, Environmental
Antonino Fiorentino, Prisco Prete, Luigi Rizzo, Raffaele Cucciniello, Antonio Proto
Summary: A new green and fully biodegradable catalyst Fe-IDS was prepared for water treatment using Fenton processes. The Fe-IDS supported photo-Fenton process showed efficient phenol removal. Fe-IDS overcomes the acidic pH limitation of conventional Fenton processes, making it an attractive option for water and wastewater treatment in a wide pH range.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Cintia Casado, Jose Moreno-SanSegundo, Irene De la Obra, Belen Esteban Garcia, Jose Antonio Sanchez Perez, Javier Marugan
Summary: This study focuses on the mechanistic modelling of wastewater disinfection using controlled solar simulated radiation in the solar photoFenton process for the first time. It was found that iron precipitates forming hydroxides at circumneutral pH significantly affect the optical properties of water, and a mechanism for bacterial inactivation was proposed.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Xuedong Du, Wenyang Fu, Pei Su, Qizhan Zhang, Minghua Zhou
Summary: The reduced S-modified MIL-53(Fe) is an efficient electro-Fenton catalyst for sulfamethazine degradation in a wide pH range. The catalyst showed enhanced catalytic performance due to the surface etching and increased Fe2+ content. The S-doped MIL-53(Fe) has promising prospects for environmental applications, with the ability to adjust pH quickly and efficiently activate H2O2.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Carlos Dante Gamarra-Guere, Dawany Dionisio, Gessica Oliveira Santiago Santos, Marcos Roberto Vasconcelos Lanza, Artur de Jesus Motheo
Summary: Endocrine disruptors, such as MeP, are persistent pollutants in aquatic ecosystems. Among various advanced oxidation processes, electro-Fenton was found to be the most effective method for degrading MeP efficiently and quickly, outperforming other alternatives.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Ying Liu, Shixian Huang, Helen J. Sun, Yao Liu, Lijiao Liang, Qingwei Nan, Tao Wang, Zhengzheng Chen, Jianting Tang, Chuanbo Hu, Joe R. Zhao
Summary: In this study, an amorphous Cu-Mn hopcalite catalyst was prepared and demonstrated excellent catalytic performance in the degradation of tetracycline using H2O2 as oxidant. The catalyst showed high stability and activity even after 6 cycles of reuse. The amorphous structure and high contents of chemically adsorbed oxygen, Cu+, and Mn4+ species were identified as the reasons for its performance.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Environmental Sciences
Dingxi Zhang, Yuping Xiang, Guangliang Liu, Lina Liang, Lufeng Chen, Jianbo Shi, Yongguang Yin, Yong Cai, Guibin Jiang
Summary: Methylmercury (MeHg) is a global environmental concern derived from industrial processes and microbial methylation. This study presents a new method using ligand-enhanced Fenton-like reaction to rapidly degrade MeHg at neutral pH. Results showed that three common chelating ligands (NTA, citrate, and EDTA) promoted MeHg degradation, with EDTA exhibiting the highest efficiency. Scavenger addition revealed the involvement of hydroxyl radical, superoxide radical, and ferryl in MeHg degradation, with their contributions dependent on the ligand type. Furthermore, environmental factors such as pH, organic complexation, and inorganic ions were also investigated for their impact on MeHg degradation.
Article
Chemistry, Physical
Amanda Carmelo da Rocha, Adila de Oliveira Sampaio Dantas, Patricia Angelica Vieira, Vicelma Luiz Cardoso
Summary: This study employed basalt powder as a photocatalyst to degrade atrazine under UV-C and visible light irradiation. The optimal conditions were identified as an initial pH of approximately 6, basalt sintered at 600 degrees C with specific dosages, and an initial H2O2 concentration of 1.6 mM. The results showed high removal efficiency of ATZ under both UV-C and visible light, with the toxicity of the process effluent being lower than the initial sample.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Environmental Sciences
Dirce Martins de Oliveira, Rodrigo Pereira Cavalcante, Lucas de Melo da Silva, Carme Sans, Santiago Esplugas, Silvio Cesar de Oliveira, Amilcar Machulek Junior
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Engineering, Environmental
Alberto Cruz-Alcalde, Santiago Esplugas, Carme Sans
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Environmental Sciences
N. Villota, J. Lombrana, A. Cruz-Alcalde, M. Marce, S. Esplugas
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Chemistry, Physical
Danilo Bertagna Silva, Alberto Cruz-Alcalde, Carmen Sans, Jaime Gimenez, Santiago Esplugas
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Engineering, Environmental
Xavier Baraza, Alexis Pey, Jaime Gimenez
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Engineering, Environmental
N. Lopez-Vinent, A. Cruz-Alcalde, C. Gutierrez, P. Marco, J. Gimenez, S. Esplugas
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Engineering, Environmental
N. Lopez-Vinent, A. Cruz-Alcalde, L. E. Romero, M. E. Chavez, P. Marco, J. Gimenez, S. Esplugas
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Engineering, Environmental
N. Lopez-Vinent, A. Cruz-Alcalde, J. A. Malvestiti, P. Marco, J. Gimenez, S. Esplugas
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Engineering, Environmental
Alberto Cruz-Alcalde, Santiago Esplugas, Carme Sans
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Engineering, Chemical
Alberto Cruz-Alcalde, Santiago Esplugas, Carme Sans
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Environmental Sciences
Nuria Lopez-Vinent, Alberto Cruz-Alcalde, Soliu O. Ganiyu, Shailesh Sable, Selamawit Ashagre Messele, Dustin Lillico, James Stafford, Carme Sans, Jaime Gimenez, Santiago Esplugas, Mohamed Gamal El-Din
Summary: Catalytic ozonation using carbon, iron, and peroxide-based catalysts was effective in treating CSO spiked with micropollutants, with carbon-based catalysts showing high adsorption capacity for MPs. Ozonation alone was effective for degrading certain MPs, but catalytic ozonation improved degradation at lower catalyst dosages and inhibited degradation at higher dosages. In all cases, the effluents showed negligible acute toxicity, indicating the suitability of the process for CSO treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Rodrigo Pereira Cavalcante, Dirce Martins de Oliveira, Lucas de Melo da Silva, Jaime Gimenez, Santiago Esplugas, Silvio Cesar de Oliveira, Renato Falcao Dantas, Carme Sans, Amilcar Machulek Junior
Summary: This study investigates the effectiveness of photocatalysis using TiO2 as a catalyst for the removal of ametryn, showing significant advantages over photolysis, generating over 30 intermediates and determining degradation pathways through the use of different scavengers.
JOURNAL OF ENVIRONMENTAL CHEMICAL 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.