膜科学与技术

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Effect of iron-based MOF material on membrane fouling during the algae-laden water treatment by ultrafiltration

Authors： Qu Fangshu, Wei Guangmei, Deng Liang, Ye Linxiong, Rong Hongwei, Yu Huarong, Yang Zhimeng

Units： Department of Municipal Engineer, College of Civil Engineer, Guangzhou University, Guangzhou 510006, China

KeyWords： Iron-based Metal-Organic Frameworks; High alginate water; Ultrafiltration; Membrane fouling

ClassificationCode：X524

year,volume(issue):pagination： 2022,42(3):135-144

Abstract：

Ultrafiltration (UF) technology can completely remove algae, but membrane fouling is still the core problem restricting the development of UF technology. In this paper, iron-based metal organic frameworks (MOFs) were used to control algae membrane fouling. The effects of MIL-88A adsorption and MIL-88A activated persulfate on membrane fouling during the algae-laden water treatment by ultrafiltration were investigated. The results showed that the pretreatment of MIL-88A could significantly alleviate the decline of membrane flux during ultrafiltration. When the dosage of MIL-88A increased from 0mg/L to 25mg/L, the terminal specific flux increased from 0.17 to 0.46; Meanwhile, the mitigation effect of MIL-88A pretreatment on irreversible membrane fouling was about 50%, but the mitigation effect did not increase with the increase of MIL-88A concentration; MIL-88A pre-treatment can effectively improve the removal of fluorescent components during the treatment of algae-laden water by ultrafiltration. Moreover, MIL-88A can effectively activate persulfate, but it can not effectively control membrane fouling during the treatment of algae-laden water by ultrafiltration.

Funds：

国家自然科学基金资助项目（51878211）；广东省自然科学基金(2019A1515012232)。

AuthorIntro：

瞿芳术（1984.09），男，副教授，籍贯：福建省宁德市，研究方向：主要从事膜法水处理技术研究

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