摘要
三聚磷酸钠 ( STPP)是公认的优良洗涤助洗剂 ,它排入水体后对水体的富营养化起重要作用。国外学者从 70年代开始研究 STPP的代用品 ,至 80年代 ,洗衣粉中的助洗剂基本上由 STPP转向了 4 A沸石。目前认为最有前途的应为层状结晶二硅酸钠。国内学者从 80年代开始研究 4 A沸石起 ,先后开发出了沉淀二氧化硅、复合二硅酸钠、层状结晶二硅酸钠等代用品。治理水体富营养化可采用减少使用 STPP、污水三级处理。
Sodium tripolyphosphate (STPP) is known as a kind of better traditional detergent builder.After being drained into water,it plays an important role in eutrophication of water quality.Scholars at abroad have started to research the substitute for STPP since 1970's.Up to 1980's detergent builder was essentially turned STPP into 4A zeolite.At present layered crystal sodium disilicate is thought as the best builder.Scholars at home have started to research 4A zeolite since 1980's, and then other substitutes were developed,such as,precipitated silica,complex sodium disilicate and layered crystal sodium disilicate.Decreasing the use of STPP,handling waste water in three levels and biological method and so on can be used to administer eutrophication of water quality.
出处
《娄底师专学报》
2000年第2期100-102,共3页
Journal of Loudi Teachers College
关键词
三聚磷酸钠
水体富营养化
洗涤助洗剂
污水处理
sodium tripolyhposphate
4A zeolite
layered crystal sodium disilicate
eutrophication of water quality
