生物大分子絮凝剂BF SVI-SD的絮凝性能  

STUDY ON THE FLOCCULATING PROPERTIES OF BIOPOLYMERIC FLOCCULANT BF SVI-SD

作　　者：潘素娟[1,3] 何玉凤[1] 李刚[1] 达文燕[2] 王荣民[1] 

机构地区：[1]甘肃省高分子材料重点实验室,西北师范大学高分子研究所,甘肃兰州730070 [2]西北师范大学生命科学学院,甘肃兰州730070 [3]天水师范学院生命科学与化学学院,甘肃天水741000

出　　处：《水处理技术》2008年第8期38-41,共4页Technology of Water Treatment

基　　金：教育部新世纪优秀人才支持计划资助项目;甘肃省中青年科技基金资助项目(031-A21-006);甘肃省教育厅基金资助项目(031-29);天水师范学院科研基金资助项目

摘　　要：利用本实验室筛选出的一株生物大分子絮凝剂高产菌,生物合成了一种环境友好的生物大分子絮凝剂BFSVI-SD。将该生物大分子絮凝剂应用于不同来源废水的处理并考察了影响絮凝性能的因素。结果表明,BFSVI-SD具有絮凝效率高、使用pH值范围较宽(4.0～9.0)等特点。金属离子对BFSVI-SD的絮凝性能具有促进作用,其中Al3+、Fe3+的促进作用最强。BFSVI-SD对淀粉废水的COD去除率可达48.6%;对泥浆悬浊液的浊度去除率达63.6%;在处理生活污水时,浊度去除率为97.6%,COD去除率达63.4%。该絮凝剂有望用于城市生活污水处理和食品工业废水处理中。A new kind ofbiopolymeric flocculant （BF SVI-SD） was prepared by microorganism, for treatment of different wastewater. The results showed that BF SVI-SD exhibits excellent flocculating efficiency with adding only a little dosage. Some metal irons, such as Fe^3＋, Al^3＋ can increased its flocculating efficiency. It could be used in system which pH value ranges from 4.0 to 9.0. The removal rate of COD was 48.6% for starch wastewater. The removal rate of turbidity was 63.6% in treatment of mud wastewater. To treat domestic sewage, the removal rate of COD and turbidity were 63.4% and 97.6%, respectively. BF SVI-SD could be used in treating wastewater of food industry and domestic sewage.

关 键 词：生物大分子絮凝剂 水处理 絮凝性能 城市生活污水 淀粉废水 

分 类 号：TQ314.253[化学工程—高聚物工业]