正渗透混合无机盐作汲取液处理废水的研究进展

Research Progress in Treatment of Wastewater Using Forward Osmosis Mixed Inorganic Salts as Extraction Solution

近年来,具有低能耗、低污染、可循环利用等优点的正渗透技术开始广泛应用于污水处理等方面,如何选择高效、稳定的汲取液是正渗透技术所要解决的核心问题。综述了近10年正渗透工艺在处理污水中的应用,重点阐述了不同汲取液进行正渗透的评价指标及其影响因素,并展望了未来混合无机盐作汲取液工艺规模化,以推动混合无机盐作汲取液的正渗透工艺在处理污水领域的应用。

In recent years,forward osmosis technology with the advantages of low energy consumption,low pollution,and recyclability,has been widely applied in sewage treatment and other fields.How to choose an efficient and stable extraction solution is the core problem that forward osmosis technology needs to solve.In this article,the application of forward osmosis technology in wastewater treatment in the past 10 years was reviewed,the evaluation indicators and influencing factors of different extraction liquids for forward osmosis were discussed.The scale of mixed inorganic salts as extraction liquid in the future was prospected to promote the application of forward osmosis process with mixed inorganic salts as extraction liquid in sewage treatment field.