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Removal of microorganic pollutants in aquatic environment: The utilization of Fe(VI)

期刊

JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 316, 期 -, 页码 -

出版社

ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2022.115328

关键词

Fe(VI); Microorganic pollutants; Application; Coagulation mechanisms; Aquatic environments

资金

  1. State Key Program of National Natural Science Foundation of China [52030003]

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This paper reviews the application of Fe(VI) in the treatment of microorganic pollutants (MOPs) in aquatic environment. Fe(VI) has the dual functionality of oxidation and coagulation, and can effectively remove various pollutants. It can also be used in combination with traditional coagulants or as a pretreatment for membrane treatment. The study provides guidelines for the application and development of Fe(VI) in the removal of MOPs, summarizing control parameters, utilization methods, and toxicity effects.
Microorganic pollutants (MOPs) in aquatic environment with low levels but high toxicity are harmful to ecosystem and human health. Fe(VI) has a dual-functional role in oxidation and coagulation, and can effectively remove MOPs, heavy metal, phosphate, particulates and colloids. Moreover, Fe(VI) can combine with traditional coagulants, or use as a pretreatment for membrane treatment because of its characters to generate nanoparticles by degradation in water. Based on the relevant toxicity experiments, Fe(VI) had been proved to be safe for the efficient treatment of MOPs. For better utilization of Fe(VI), its oxidation and coagulation mechanisms are summarized, and the knowledge about the control parameters, utilization methods, and toxicity effect for Fe(VI) application are reviewed in this paper. pH, different valences of iron, environmental substances, and other parameters are summarized in this study to clarify the important factors in the treatment of MOPs with Fe(VI). In the future study, aiming at cost reduction in Fe(VI) preparation, transportation and storage, enhancement of oxidation in the intermediate state, and better understanding the mechanism between interface and Fe(VI) oxidation will help promote the application of Fe(VI) in the removal of MOPs. This study offers guidelines for the application and development of Fe(VI) for the treatment of MOPs in aquatic environment.

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