化工进展2023，Vol.42Issue(11)：5920-5928,9.DOI:10.16085/j.issn.1000-6613.2022-2313
纳滤/反渗透膜硅垢形成影响因素及控制策略研究进展
Research progress on influencing factors and control strategies of silica scale formation in nanofiltration/reverse osmosis membranes
摘要
Abstract
Silica scaling led to irreversible decline of the nanofiltration/reverse osmosis(NF/RO)membrane permeation flux and severely limited the water productivity of the membrane system,which was widely considered as a difficult challenge in water treatment process.Two types of silica scale on NF/RO membrane were introduced firstly,namely inorganic scale and combined inorganic-organic scale.Then,the effects of influent water quality,membrane surface chemical properties and topology on the formation of silica scale on membrane surface were emphatically reviewed,as well as the control strategies for the formation of silica scale on membrane surface,including influent pretreatment,scale inhibitor addition,membrane surface chemical modification and morphology regulation.Finally,the existing problems and future research directions of silica scaling control on membrane surface were summarized,mainly including the research on silica scaling behavior using model substrates with controllable surface properties,the in-depth exploration of the relationship between membrane surface chemical properties and silica scaling potential,the thorough research on the delay and inhibition mechanism of polymer scale inhibitors at the molecular level,the development of novel membrane materials to simultaneously inhibit silica scaling and organic fouling,and the establishment of a comprehensive database related to membrane surface properties and silica scaling under different influent water quality conditions,which were of important guiding significance for the development of efficient silica scale control strategies.关键词
膜/纳滤/反渗透/硅垢Key words
membranes/nanofiltration/reverse osmosis/silica scale分类
化学化工引用本文复制引用
赵东升,宋基瑜,林治全,刘贵彩,吴怡波,黄立..纳滤/反渗透膜硅垢形成影响因素及控制策略研究进展[J].化工进展,2023,42(11):5920-5928,9.基金项目
河南省高等学校重点科研项目(23A560005) （23A560005）
南阳师范学院校级科研项目(2022QN018) （2022QN018）
河南省大学生创新创业训练计划(202210481010). （202210481010）
