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211.
Alison P. Murata Tariq Siddique Allen M. Jobson Alsu Kuznetsova Amalesh Dhar M. Anne Naeth 《补救:环境净化治理成本、技术与工艺杂志》2023,33(2):111-118
Chloroform, a probable human carcinogen, is mainly produced anthropogenically for industrial use and may be released to the environment from a large number of sources related to its manufacture and use, including pulp and paper mills, hazardous waste sites, and sanitary landfills. Remediation of chloroform through conventional technologies has been met with limited success due to the conditions required and the formation of hazardous substances such as dichloromethane. The objective of this study was to investigate chloroform reduction in multicontaminated fine-textured soil using zero-valent iron (Fe0) in anaerobic microcosms. Four amended matrices were tested: simple matrix control (glass beads), soil matrix control (glass beads + soil), Fe0 in a simple matrix (glass beads + Fe0), and Fe0 in a soil matrix (soil + Fe0). Headspace chloroform and its transformation products dichloromethane, chloromethane, and methane were measured over 230 days and during short intervals in the initial 3 days. Chloroform (~0.3 mM initial mass) persisted in both control microcosms but was completely transformed in microcosms containing soil + Fe0 by 12 h and glass beads + Fe0 by 48 h. Reductive dechlorination of chloroform occurred with simultaneous production of dichloromethane (~0.11 to 0.14 mM mass) and chloromethane (~0.02 to 0.13 mM mass). Little methane (~0.07 to 0.26 μM mass) production as an end product of chloroform reduction was observed in microcosms amended with Fe0. Produced dichloromethane and chloroform almost disappeared by 230 days. The results showed a complete chloroform transformation pathway that has good potential for the remediation of chlorinated compounds in fine-textured soil. The role of soil clay minerals in redox reactions can be further investigated to improve the reductive dechlorination of chlorinated compounds in contaminated environments. 相似文献
212.
Pandey Kailash Pati Jha Ujjwal R. Kushwaha Jeetesh Priyadarsini Madhumita Meshram Siddharth U. Dhoble Abhishek S. 《Journal of Material Cycles and Waste Management》2023,25(3):1249-1266
Journal of Material Cycles and Waste Management - With sky-rocketing demand and unrestricted global production, plastics have become an inseparable part of daily human life and the circular economy... 相似文献
213.
Pandey Arunabh Kumar Brind 《Environmental science and pollution research international》2022,29(17):24504-24546
Environmental Science and Pollution Research - Over the years, supplementary cementitious materials (SCM) have been successfully utilized in concrete buildings, but they have been rarely exploited... 相似文献
214.
Thakurata Debasish Guha Das Krishna Chandra Dhar Siddhartha Sankar 《Environmental science and pollution research international》2022,29(23):34269-34277
Environmental Science and Pollution Research - The current research describes the synthesis, characterization and application of CoFe2O4/g-C3N4/bentonite as a novel nanocomposite for the efficient... 相似文献
215.
Adlakha Amit Pathak Paritosh Kumar Anup Pandey Prashant 《Environmental science and pollution research international》2022,29(30):45698-45715
Environmental Science and Pollution Research - The Swachh Bharat Mission undertaken by the Government of India (GoI) has been successful in accomplishing this objective within a short period... 相似文献