Article
Engineering, Environmental
Tao Yang, Jiamin Mai, Haijun Cheng, Mengyang Zhu, Sisi Wu, Liuyan Tang, Ping Liang, Jianbo Jia, Jun Ma
Summary: This study investigated the use of UVA-LED in combination with Fe(VI) for degrading micropollutants, showing significant enhancement compared to Fe(VI) alone. Factors such as wavelength, light intensity, and pH were found to influence the degradation performance.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Meng Zhang, Zhiyong Luo, Yiwen Luo, Jun Zhai, Zhihui Wang
Summary: The research comprehensively investigated the influence of pH on the degradation of 2,4,6-trichlorophenol (TCP) by ferrate(VI) (Fe(VI)), showing that Fe(VI) has significant potential to remove TCP and pH strongly influences TCP degradation by Fe(VI).
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Environmental
Yihao Li, Lu Jiang, Rui Wang, Pingxiao Wu, Juan Liu, Shanshan Yang, Jiahao Liang, Guining Lu, Nengwu Zhu
Summary: This study investigates the oxidation mechanism of phenolic compounds by ferrate (Fe(VI)), showing increased degradation rates at higher pH levels. It identifies 14 degradation products, proposes two possible pathways, and highlights the crucial role of hydroxyl radicals in the degradation process. Density functional theory calculations reveal preferences for chlorine atom substitution over hydrogen atom and ortho-position substitution over para-position for all four compounds, providing valuable insights for environmental remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Chemical
Mei Dai, Zhiyong Luo, Yiwen Luo, Qing Zheng, Bingwen Zhang
Summary: This study investigated the kinetics, performance, and mechanism of Fe(VI) oxidation degradation of 2,6-DCP, and found that Fe(VI) has efficient removal efficiency for 2,6-DCP, especially under higher molar ratio conditions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yanhui Cheng, Fukang Zheng, Huiyu Dong, Fei Pan, Lei Sun, Nevskii Aleksandr, Xiangjuan Yuan
Summary: This study investigated the advanced oxidation technology of ozone and ferrate (ozone/Fe (VI)) for the degradation of micropollutants. The results showed that ozone/Fe(VI) process efficiently degraded sulfamethoxazole (SMX) and diclofenac sodium (DCF), with higher degradation efficiency under acidic conditions. Scavenging and probe experiments identified ozone, Fe(VI), OH, and Fe(IV)/Fe(V) species as the main oxidants for SMX and DCF degradation. The study also identified the transformation products of SMX and DCF and evaluated their ecotoxicity. These findings have important implications for water treatment using the ozone/Fe(VI) process.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Zhuang Zhang, Xin Li, Chang Zhang, Sihui Lu, Yanni Xi, Yicai Huang, Zhuangzhuang Xue, Ting Yang
Summary: This study systematically investigated the degradation of chloramphenicol by combining ferrate (Fe(VI)) with thiosulfate (TS). The Fe(VI)/TS system showed higher removal efficiency of CAP under certain conditions, producing sulfate radical and hydroxyl radical as the primary active species. LC-MS/MS detected eight intermediates and proposed three possible degradation pathways of CAP, while toxicity of the by-products was evaluated through Escherichia coli toxicity test.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Hang Yu, Yu Tian, Shuyue Wang, Xin Ke, Rundong Li, Xiaohui Kang
Summary: This study investigated the oxidation mechanism of SANs by Fe(VI) using DFT, revealing that the primary oxidations of SANs follow the HAT mechanism, with the hydroxyl oxygen being more reactive than the carbonyl oxygen. Formation of SAN radicals is crucial, and substituents have a greater influence on the reaction than the position.
Article
Environmental Sciences
Warunee Limmun, Nao Ishikawa, Jin Momotori, Masanori Terasaki, Takumu Sato, Kotaro Kikuchi, Makoto Sasamoto, Teruyuki Umita, Ayumi Ito
Summary: In this study, the biodegradability of 4-NP and its degradation products in the presence of ferrate(VI) were evaluated. It was found that 4-NP was not completely mineralized and formed degradation products when ferrate(VI) was added. Mass spectra analysis revealed a unique peak at m/z 223 for the degradation products of 4-NP with Fe(VI). Furthermore, the estrogenic activity of 4-NP in aqueous solution was significantly reduced with increasing Fe(VI) concentration.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Yu Li, Hefa Cheng
Summary: This study investigated the degradation kinetics, influence of water matrices, and transformation pathways of carbendazim (CBZ) in ferrate (Fe(VI)) oxidation. The results showed that Fe(VI) oxidation could efficiently remove CBZ in natural water matrices under near-neutral conditions.
Article
Engineering, Environmental
Mingzhu Liu, Nannan Wu, Xiaoyu Li, ShengNan Zhang, Virender K. Sharma, Jamaan S. Ajarem, Ahmed A. Allam, Ruijuan Qu
Summary: This study investigated the oxidation reaction of benzophenones, commonly used UV filters, by the oxidant potassium permanganate (KMnO4). The addition of potassium permanganate enhanced the reaction rate and efficiency. The degradation of benzophenones involved hydroxylation, bond breaking, polymerization, and carboxylation processes. Toxicity assessments revealed that the intermediate products formed during the degradation process posed a decreasing ecological risk.
Article
Engineering, Environmental
Liwei Yang, Chao Hai, Heng Zhang, Can Feng, Mengfan Luo, Peng Zhou, Juntong Leng, Xinyuan Tian, Chuanliang Zhao, Bo Lai
Summary: This study investigated the degradation of methyl parathion using potassium ferrate. It was found that potassium ferrate has strong oxidation and adsorption abilities, and can completely degrade methyl parathion within a short period of time. Three conversion pathways of methyl parathion were proposed based on the identified by-products, and the toxicity of potassium ferrate-degraded methyl parathion was significantly reduced.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Xiaochen Qi, Na Liu, Zhongen Tang, Wenjuan Ou, Chuanqi Jian, Yutao Lei
Summary: In this study, a QSAR model was developed using particle swarm optimization and an extreme learning machine to understand the laws of kapp values of organic compounds during degradation by Fe (VI). The model was verified to have high reliability and predictability. Constructing the QSAR model facilitates kapp prediction for Fe (VI) in the degradation of various organic compounds, improves the understanding of the degradation mechanism, and reduces the pressure on human and material resources caused by experiments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Marwa El Kateb, Clement Trellu, Nihal Oturan, Nizar Bellakhal, Nasri K. Nesnas, Virender K. A. Sharma, Mehmet A. Oturan
Summary: Pharmaceutical residues as emerging pollutants in the aquatic environment have become a growing concern. This paper explores the use of ferrate oxidation combined with anodic oxidation or electro-Fenton processes for the degradation of a model pharmaceutical compound. The results show that using ferrate as a pre-oxidation step and as an iron source for the electro-Fenton process is the most promising treatment strategy, leading to fast degradation, low formation of aromatic by-products, and a significant decrease in acute toxicity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Fitri Widhiastuti, Linhua Fan, Jorge Paz-Ferreiro, Ken Chiang
Summary: The combination of Fe(VI) and H2O2 exhibited synergistic effect in degrading BPA in ROC, achieving higher degradation efficiency. Optimized degradation was achieved by adjusting operating conditions, including dosage, dosing strategy, pH, and initial concentration. Simultaneous addition of Fe(VI) and H2O2 provided satisfactory degradation of BPA.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Multidisciplinary
Cali Antolini, Charles D. Spellman Jr, Christopher J. Otolski, Gilles Doumy, Anne Marie March, Donald A. Walko, Cunming Liu, Xiaoyi Zhang, Benjamin T. Young, Joseph E. Goodwill, Dugan Hayes
Summary: This study investigates the formation and fate of Fe(V) and Fe(IV) species in aqueous potassium ferrate(VI) through a combination of optical and X-ray transient absorption spectroscopies. The results improve the mechanistic understanding and accelerate the development of novel advanced oxidation processes for water treatment applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Engineering, Environmental
Dian Majid, Il-Kyu Kim
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2018)
Article
Environmental Sciences
Dian Majid, Il-Kyu Kim, Fajar Budi Laksono, Aditya Rio Prabowo
Summary: This research investigates the degradation ability of ferrate on hazardous benzene derivatives such as bromobenzene and chlorobenzene, exploring optimal conditions for degradation. The study found that ferrate exhibits a greater degradation ability against chlorobenzene compared to bromobenzene.
Proceedings Paper
Environmental Sciences
Hadiyanto, Meiny Suzery, Deny Setyawan, Dian Majid, Heri Sutanto
2ND INTERNATIONAL CONFERENCE ON TROPICAL AND COASTAL REGION ECO DEVELOPMENT 2016
(2017)
Proceedings Paper
Engineering, Chemical
Meiny Suzery, Hadiyanto, Heri Sutanto, Danny Soetrisnanto, Dian Majid, Deny Setyawan, Nur Azizah
INTERNATIONAL CONFERENCE OF CHEMICAL AND MATERIAL ENGINEERING (ICCME) 2015: GREEN TECHNOLOGY FOR SUSTAINABLE CHEMICAL PRODUCTS AND PROCESSES
(2015)