Article
Environmental Sciences
Farshid Ghanbari, Stefanos Giannakis, Kun-Yi Andrew Lin, Junxue Wu, Soheila Madihi-Bidgoli
Summary: The study demonstrated the promising application of PAA/UVC-LED/Fe(II) process in degrading acetaminophen and other organic pollutants. Fe(II) showed the highest efficiency in the degradation process, with oxygen-centered radicals and hydroxyl radicals playing important roles.
Article
Engineering, Environmental
Allisson Barros de Souza, Joerg Mielcke, Izba Ali, Raf Dewil, Tom van de Goor, Deirdre Cabooter
Summary: This study examined the degradation of miconazole (MCZ) in water using ozone, photodegradation, and electrochemical processes. The results showed that MCZ can be efficiently removed by ozonation (98%) and electrochemical processes (94%). Matrix effects were observed in simulated wastewater, and the formation mechanism and ecological toxicity of degradation by-products were studied. Moreover, the automated online sampling technology provided a diagnostic tool for real-time process monitoring during water treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Dong Cheng, Yuansen Tan, Runhao Ma, Haoran Ding, Wenjuan Liao, Kai He, Rui Sun, Hengli Ni, Feng He
Summary: This study demonstrates the efficient degradation of nitrobenzene by FeS through a sequential reduction and oxidation process. Fe(II) and S(II) in FeS contribute electrons to the reduction of nitrobenzene. Addition of tripolyphosphate enhances the oxidation reaction, while TPP adsorption inhibits the surface oxidation reactivity of FeS. The effectiveness of FeS in degrading nitrobenzene in actual groundwater is demonstrated.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Na Qiu, Chanchan Shen, Yongxia Liu, Xiuqing Li, Guangyin Jia, Jingping Qin, Xinglei Wang
Summary: This study investigated the degradation mechanism of ibuprofen in aqueous solutions and the factors influencing the degradation process, and proposed a possible degradation pathway. The results showed that ferric ion activated peroxydisulfate coupled with electro-oxidation could effectively remove ibuprofen from water bodies.
Article
Engineering, Environmental
Mingxia Sun, Hongjie Song, Xiaobo Xie, Wenxi Yang, Yingying Su, Yi Lv
Summary: A specific luminescent probe was developed to selectively detect hydroxyl radicals, providing insights into the dynamic processes of hydroxyl radical generation and consumption.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Anna Wang, Zhechao Hua, Zihao Wu, Chunyan Chen, Shaodong Hou, Bangjie Huang, Yuge Wang, Ding Wang, Xuchun Li, Chuanhao Li, Jingyun Fang
Summary: This study examined the effects of bromide (Br-) at fresh water levels on radical chemistry in the UV/peroxydisulfate (UV/PDS) process. The presence of Br- promoted the conversion from sulfate radical (SO4-) to hydroxyl radical (HO-) and secondary reactive bromine species (RBS), significantly altering the radical chemistry of the process. Co-existing Cl- further enhanced the conversion from SO4- to HO- when combined with Br-.
Article
Engineering, Environmental
Ke Wang, Xuan Xing, Wen Liu, Yi Jiang, Hongna Li, Yue Lu, Huiying Chen, Huatang Ren
Summary: In this study, a novel PbO2 electrode modified with rare earth elements (La, Ce, Gd and Er) doping was prepared by electrodeposition. The micro-morphology, crystal structure, and electrochemical properties of the modified electrode were characterized. The results showed that rare earth elements doping significantly improved the oxidation ability of the PbO2 electrode by reducing grain size, increasing oxygen evolution potential, enlarging electrochemical active surface area, and enhancing center dot OH formation ability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Danyu Huang, Ning Chen, Changyin Zhu, Haitao Sun, Guodong Fang, Dongmei Zhou
Summary: In this study, the temporal and spatial variations in Fe species and ROS during the flooding-drainage process in a representative paddy soil were comprehensively assessed. The results showed complex transformations and generation processes of Fe species and ROS during the flooding process, which were influenced by dissolved oxygen concentration.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Physical
Emmanuel Mousset
Summary: Boron-doped diamond (BDD) anode has been widely studied for its excellent performance in the treatment of wastewater and disinfection. Microfluidic reactors, which implement submillimetric interelectrode gaps, have emerged as a promising alternative for optimal degradation and mineralization with BDD anode. They allow intensifying mass transport while reducing energy consumption and eliminating the need for supporting electrolytes.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Engineering, Environmental
Chunyan Chen, Zihao Wu, Zhechao Hua, Kaiheng Guo, Yujie Zhou, Ding Wang, Beicheng Xia, Jingyun Fang
Summary: The study found that different components in water have varying effects on radical generation and degradation of micropollutants in the UV/NH2Cl process. Chloride weakens the impacts of HO· and Cl·, bromide leads to a decrease in HO· and RCS, alkalinity enhances the degradation of micropollutants, while natural organic matter inhibits radical activity.
Article
Engineering, Environmental
Sara Feijoo, Mohammadreza Kamali, Quynh-Khoa Pham, Azziz Assoumani, Francois Lestremau, Deirdre Cabooter, Raf Dewil
Summary: The study demonstrates the effective electrochemical degradation of carbamazepine (CBZ) in water using a Boron-Doped Diamond (BDD) anode. The optimized conditions for complete CBZ removal within 5 minutes include CBZ concentration of 1μM, pH 2, temperature of 30 degrees C, 10 mM Na2SO4, and 50 A m(-2). The presence of SO42- and NO3- ions in solution is found to be crucial for achieving optimal degradation results.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Elvana Cako, Reza Darvishi Cheshmeh Soltani, Xun Sun, Grzegorz Boczkaj
Summary: A combination of dual-frequency acoustic cavitation and UV assisted advanced oxidation processes was developed for desulfurization of raw naphtha. The hybrid process of acoustic cavitation/peracetic acid/hydrogen peroxide showed the most effective treatment with high desulfurization efficiency. The alternative treatment process of acoustic cavitation/UV/acetone/water achieved complete desulfurization of specific sulfur compounds.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Francisco J. Real, Juan L. Acero, F. Javier Benitez, Esther Matamoros
Summary: This study investigates the elimination of neonicotinoid insecticides in water through ozone-based oxidation treatments. It is found that certain neonicotinoids can be partially degraded by ozone, with the degradation efficiency depending on the pH value and water constituents. Furthermore, advanced oxidation processes combining ozone with hydrogen peroxide or activated carbon show better performance in neonicotinoid removal compared to ozone alone.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Hai Lu, Qingpo Li, Weihao Feng
Summary: Organic pollution poses a significant challenge to environmental protection, and traditional sewage treatment methods are unable to effectively degrade such pollutants. The ozone/UV advanced oxidation process (O-3/UV) is a promising clean and efficient advanced treatment technology that can effectively degrade organic pollutants.
Review
Engineering, Environmental
Ifeoluwa O. Daramola, Mike O. Ojemaye, Anthony I. Okoh, Omobola O. Okoh
Summary: This article introduces the advanced oxidation processes (AOPs) for the degradation of herbicides in water, which can break down complex pollutants into carbon dioxide and mineral compounds. However, most AOPs are unable to completely degrade herbicides, and further development of novel AOPs is needed.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)