Effect of pre-oxidation on low pressure membrane (LPM) for water and wastewater treatment: A review. (September 2019)

• Record Type: Journal Article
• Authors: Li, Kai; Wen, Gang; Li, Shu; Chang, Haiqing; Shao, Senlin; Huang, Tinglin; Li, Guibai; Liang, Heng
• Is Part Of: Chemosphere. Volume 231(2019)
• Page Start: 287
• Page End: 300
• Publication Date: 2019-09
• Subjects: Low pressure membrane (LPM) -- Pre-oxidation -- Membrane fouling -- Permeate water quality -- Organic matter; 2-MIB 2-methylisoborneol -- AFM atomic force microscopy -- AOM algae organic matter -- AOPs advanced oxidation processes -- ATZ Atrazine -- CBZ carbamazepine -- CUF coagulation-ultrafiltration process -- DBPs disinfection by-products -- DOM dissolved organic matter -- EDCs endocrine disrupter compounds -- E-E estradiol -- EfOM effluent organic matter -- EO electro-oxidation -- EPS extracellular polymeric substances -- GSM geosmin -- HAAs haloacetic acid -- IBU ibuprofen -- LPM low pressure membrane -- MC-LR microcystin-LR -- MF microfiltration -- MW molecular weight -- MWCO molecular weight cutoff -- NOM natural organic matter -- OCD organic carbon detector -- p-CBA para-Chlorobenzoic acid -- p-CNB p-chloronitrobenzene -- PMS peroxymonosulfate -- PPCPs pharmaceuticals and personal care products -- PS peroxysulphate -- PVC polyvinyl chloride -- PVDF polyvinylidene fluoride -- SMT sulfamethazine -- TCMs trichloromethane -- THMs trihalomethane -- TMP trans-membrane pressure -- TOC total organic carbon -- UF ultrafiltration -- UVD ultraviolet detector -- VEN venlafaxine; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2019.05.081
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Low pressure membrane (LPM) filtration is a promising technology for drinking water production, wastewater reclamation as well as pretreatment for seawater desalination. However, wider implementation of LPM is restricted by their inherent drawbacks, i.e., membrane fouling and insufficient rejection for dissolved contaminants. Pretreatment of feed water is a major method to improve the performance of LPM, and pre-oxidation has gained extensive attention because it can significantly alter compositions and properties of feed water through chemical reactions. This paper attempts to systematically review efficiency and mechanisms of pre-oxidation in membrane fouling control and permeate water quality improvement. On the basis of briefly discussing major foulants and fouling mechanisms of LPM, advantages and disadvantages of pre-oxidation in mitigating organic fouling, inorganic fouling and biofouling are discussed in detail. Impacts of pre-oxidation on removal of micropollutants, bulk organic matter and inorganic pollutants are summarized, and potential by-products of different oxidants are presented. As a prerequisite for the integration of chemical oxidation with LPM filtration, compatibility of membrane with oxidants at low concentration and long exposure time are highlighted. Finally, the existing challenges and future research needs in practical application of chemical oxidation to improve performance of LPM are also discussed. Graphical abstract: Image 1 Highlights: Effect of pre-oxidation on fouling and permeate quality of LPM is reviewed. Pre-oxidation effectively mitigates fouling caused by high-MW organics and bacteria. Pre-oxidation enhances removal of micropollutants and inorganic pollutants. Compatibility of polymeric membrane with oxidants requires further investigation.