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Applying permanganate/bisulfite (PM/BS) pre-oxidation enhanced coagulation to control fouling of ultrafiltration membrane in drinking waterworks by Xiaowei Liu; Qikun Zhou; Kexin Li; Peng Chen; Miaomiao Ye; Lili Wang is a Environmental Science article available to read on EtoBox.
What is Applying permanganate/bisulfite (PM/BS) pre-oxidation enhanced coagulation to control fouling of ultrafiltration membrane in drinking waterworks about?
Coagulation is an effective pre-treatment step for ultrafiltration (UF) drinking water treatment but is limited by the inability to regulate membrane fouling, particularly organic and biological fouling. Herein, we propose a permanganate/bisulfite (PM/BS) pre-oxidation enhanced coagulation process (PM/BS + coagulation) as UF pre-treatment and apply it to treat samples of natural surface waters. The results indicate that PM/BS + coagulation demonstrated superior performance in mitigating membrane fouling. For the four different types of real water, the specific membrane flux decline of UF following PM/BS + coagulation was 4.2 %–22 % less than that of UF following coagulation, and PM/BS + coagulation decreased the total filtration resistance by 21.7 %–74.9 % compared to coagulation alone. To achieve the best membrane fouling alleviation, PM/BS was suggested for use with aluminum polychloride-coagulation under optimized oxidation CoxTox, coagulant dosage, GT value, and sedimentation time. PM/BS + coagulation pre-treatment controlled UF membrane fouling by: 1) directly changing the UF feed water quality (e.g., composition and properties of organic matter, amount and properties of parti
Who reads Applying permanganate/bisulfite (PM/BS) pre-oxidation enhanced coagulation to control fouling of ultrafiltration membrane in drinking waterworks?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Xiaowei Liu; Qikun Zhou; Kexin Li; Peng Chen; Miaomiao Ye; Lili Wang
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Environmental Science (Physical Sciences)
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