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The significant volume and substantial pollutant load in produced water (PW) pose challenges for the environment, thus necessitating exploration of appropriate treatment techniques. Though single oxidation or membrane methods exhibit effectiveness and individual merits, significant challenges persist in practical PW treatment. The efficacy of oxidation-membrane treatment trains in mitigating membrane fouling and enhancing permeate quality have been recognized. However, a significant deficiency lies in the discussion concerning the actual treatment performance and the synergistic effects between oxidation and membranes. Three typical hybrid methods integrating oxidation and membranes were proposed based on their individual performance, with the aim of facilitating PW beneficial reuse and achieving zero liquid discharge. Moreover, the state-of-theart treatment behaviors and the mechanisms for fouling alleviation were systematically evaluated. In particular, pre-ozonation-ultrafiltration/microfiltration stands out as the predominantly researched treatment method, whereas oxidation-nanofiltration/reverse osmosis has received limited research attention. Oxidation proved effective in removing both organic and reductive inorganic compounds from PW. After oxidation, the quality of PW can be significantly improved to cause less fouling in the following membrane steps. Additionally, effect of PW constituents on oxidation efficiency, oxidation-membrane, the compatibility of the oxidation-membrane hybrid process, management of hazardous hazardous byproducts disposal, and economic feasibility were proposed as the future research directions.
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SEPARATION AND PURIFICATION TECHNOLOGY
ISSN: 1383-5866
Year: 2024
Volume: 351
8 . 2 0 0
JCR@2023
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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