退浆工艺对环境的污染及其对策  

Environmental pollution from desizing process and its countermeasures

作　　者：李戎[1] 胡婷莉[1] 刘红玉[1] 阎克路[1] 

机构地区：[1]东华大学化学化工与生物工程学院国家染整工程技术研究中心,上海201620

出　　处：《印染》2009年第5期49-51,共3页China Dyeing and Finishing

摘　　要：我国印染行业现行退浆工艺能耗高,对环境污染严重,退浆废水的COD值要占整个印染废水的60%。目前,我国纺织行业大多采用PVA和淀粉混合浆,而PVA很难降解。采用PVA降解酶的退浆工艺虽然不能降低退浆液的COD值,但可以有效降解废水中的PVA,从而改善退浆废水的可生化性。开发商品化PVA降解酶及其退浆工艺,或推行氧化退浆工艺及无PVA的上浆工艺,将是今后的发展方向。Conventional desizing processes are always concerned about high energy consumption and heaw environmental pollution, COD value of desizing effluent occupies 60% of dyeing effluents. The most popular size for textile industry is the mixture of starch and PVA, but PVA is very hard to be degraded. It was found that although PVA degrading enzyme could not effectively decrease the COD value of desizing liquor, it could effectively degrade PVA, therefore, biodegradability of desizing effluents was greatly improved. The developing trend in future is the commercialization of PVA degrading enzyme and its applied process, as well as populating oxidation desizing process and PVA-free sizing process.

关 键 词：退浆 浆料 降解酶 织物 

分 类 号：TS190[轻工技术与工程—纺织化学与染整工程]