Article
Green & Sustainable Science & Technology
Chun Xiao, Xian Li, Qitian Li, Yongyou Hu, Jianhua Cheng, Yuancai Chen
Summary: In this study, a Ni-doped FeC2O4 photo-Fenton catalyst was prepared and successfully utilized for the simultaneous degradation of organic compounds and reduction of heavy metals. The removal efficiency of the RhB/Cr(VI) mixture in the 10-NiFeOx photo-Fenton system reached almost 100%.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Junhui Yang, Wenlei Wang, Jinglin Yin, Yanmei Li, Ziyang Xiang, Yi Peng, Ying Yan, Jing Wang, Hongbo Xiao
Summary: In this study, a composite material of CdZnS and alpha-FeOOH was prepared by a hydrothermal method and successfully used for the degradation of As(III) under visible light irradiation. The influence of oxalate concentration and oxygen on the catalytic oxidation of As(III) was investigated. The introduction of CdZnS promoted the separation of interfacial electron holes and accelerated the REDOX cycle.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Xiaobiao Zhu, Hao Li, Xiaohan Shang, Tiefei He
Summary: In this study, Fe-Cu binary oxide loaded on zeolite (Fe/Cu/zeolite) was used as a heterogeneous Fenton catalyst for the catalytic degradation of carbamazepine (CBZ) at near-neutral pH. The Fe/Cu/zeolite catalyst exhibited excellent performance in degrading CBZ, achieving complete degradation at initial pH values ranging from 3 to 7 and maintaining a removal efficiency above 74% even at pH near 10. After repeated use, the Fe/Cu/zeolite catalyst still showed over 95% removal efficiency of CBZ. The main active oxidants were identified as hydroxyl radicals (•OH) based on quenching experiments and ESR testing. XPS analysis revealed that the high catalytic efficiency was attributed to the synergistic effect of Fe(III)/Fe(II) and Cu(II)/Cu(I) redox cycles. Therefore, this catalyst can be effectively used for the degradation of organic pollutants in heterogeneous Fenton systems.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Jieru Guo, Ge Song, Minghua Zhou
Summary: In this study, highly dispersed FeN-CNTs catalysts were synthesized and applied in Hetero-EF process, which significantly improved the removal of pollutants under a wide pH range. FeN-CNTs/Hetero-EF achieved efficient degradation of CBZ at low current density and catalyst dosage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Ozkan Gormez, Fatma Gormez, Belgin Gozmen
Summary: This study compared the effects of homogeneous and heterogeneous electro-Fenton processes on the degradation of Metronidazole. It was found that the heterogeneous EF process had higher mineralization percentage and better reusability compared to the homogeneous EF process.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Yang Li, Ruoyun Lin, Fangjie Lv, Xiaoyu Zhao, Tianzhi Yong, Xiaojun Zuo
Summary: A tannic acid-Fe complex derivative-modified carbon felt (TFD@CF) cathode was prepared for hetero-EF treatment of organic pollutants, exhibiting excellent removal efficiency (>90%) for various pollutants at neutral and alkaline pH. The cathode also showed good COD removal performance in treating actual wastewater, and possessed improved electrochemical properties with enhanced electron transfer ability and a well-pronounced Fe(III) electroreductive response.
ENVIRONMENTAL RESEARCH
(2022)
Article
Polymer Science
Lu Fu, Zhiyu Huang, Xiang Zhou, Liumi Deng, Meng Liao, Shiwen Yang, Shaohua Chen, Hua Wang, Luoxin Wang
Summary: The study introduces a simple method for manufacturing heterogeneous Fenton aramid nanofibers/ferrous oxalate composite membrane catalysts with excellent degradation of methylene blue, showing high efficiency and reusability of the catalyst. This new avenue in the fabrication of heterogeneous Fenton catalysts contributes to dye wastewater purification, especially in the degradation of methylene blue.
Article
Nanoscience & Nanotechnology
Xiao Liu, Cheng Zhang, Chaoyi Zhu, Kenneth Vecchio
Summary: This study reports the achievement of strength-ductility synergy in an Al-Cr-Fe-Co-Ni complex concentrated alloy through the utilization of a heterogeneous lamella structure. The materials were processed using a simple two-step thermo-mechanical processing route and showed significant enhancement in both strength and ductility. The mechanical properties can be tuned by changing the annealing time, and the multiphase lamella structure exhibits a stronger Bauschinger effect compared to other similar materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Xuan Zhang, Yanqin Xue, Xianzhi Yin, Lian Shen, Kai Zhu, Xiaomei Huang, Dianxue Cao, Jiaxin Yao, Guiling Wang, Qing Yan
Summary: This study successfully fabricated Mn oxides-Fe-Ni sulfide composite materials as HER electrodes in alkaline media using a two-step hydrothermal process. The electrode shows low working potential and good stability.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Environmental
Yufan Chen, Christopher J. Miller, T. David Waite
Summary: The study reveals that both HO center dot and [(FeO)-O-IV](2+)/ Fe-III(O2H) are concurrently produced on the surface in the acidic to near-neutral pH range, but HO center dot is the major oxidant responsible for substrate oxidation. As pH increases, the yield of both oxidants is inhibited by the decreasing availability of surface sites due to ferrihydrite particle aggregation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Pengfei Yan, Haojian Wang, Mingwen Wang, Chengwen Chai, Yaping Ye
Summary: FeS2/MoS2 shows promising prospects for wastewater degradation with high degradation efficiency and a wide applicable pH range.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Chunwei Yang, Dong Wang, Qian Tang, Julia Youst MacRae
Summary: An Fe(II)-nano-Fe3O4@PAC heterogeneous Fenton catalyst was prepared for efficient aniline degradation, showing high degradation rates under optimal conditions. The catalyst has a cost-effective advantage and can be easily magnetically separated, making it promising for applications in treating organic industrial wastewater pollution in developing countries.
ENVIRONMENTAL TECHNOLOGY
(2021)
Article
Environmental Sciences
Huiwang Dai, Xiaozeng Miao, Jianxi Zhu, Jianxin Chen
Summary: In this study, oxalate was used as a regulator to enhance the degradation of Orange II in a Fe3O4 magnetic nanoparticles (NPs)-catalyzed heterogeneous UV-Fenton system. The oxalate could interact with the catalyst, weakening the bond and promoting the leaching of iron ions, leading to accelerated redox cycle of iron and generation of hydroxyl radicals. The results showed that the addition of oxalate significantly increased the degradation rate of Orange II. Furthermore, the Fe3O4 magnetic nanoparticles demonstrated high catalytic stability and reusability.
Article
Chemistry, Physical
Yashu Liu, Zi Wei, Shilin Wu, Shan Qiao, Hongbo Zhou
Summary: In this study, a highly efficient catalyst for oxygen evolution reaction (OER) was synthesized by adding carbon nanotubes into oxalate-based nickel-iron metal organic framework. The addition of 30% carbon nanotubes showed the best catalytic performance, which can be attributed to the formation of nickel-iron hydroxides in alkaline solution.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Jingjing Zhang, Shan Qiu, Haopeng Feng, Tong Hu, Yanxin Wu, Ting Luo, Wangwang Tang, Dongbo Wang
Summary: A novel heterogeneous EF catalyst, Fe@Fe2O3-CeO2, was successfully synthesized for efficient degradation of organic pollutants. The catalyst exhibited excellent performance with high removal and mineralization efficiency, good recyclability and stability. The heterogeneous EF process showed promising catalytic activity towards degradation of various organic pollutants, providing insights into the reaction mechanism and facilitating its application in refractory wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)