聚硅酸铝絮凝处理医院污水

辽宁石油化工大学学报 ›› 2006, Vol. 26 ›› Issue (2): 49-51.

聚硅酸铝絮凝处理医院污水

宋　波, 丁保宏

抚顺职业技术学院, 辽宁抚顺113006

收稿日期:2005-12-29 出版日期:2006-02-25 发布日期:2006-02-25
作者简介:宋波(1960 -), 女, 辽宁抚顺市, 副教授。

Treatment of Hospital Waste Water With Polysilicate Aluminum

Fushun Vocational Technology I nstitute , Fushun Laoning 113006, P .R .China

Received:2005-12-29 Published:2006-02-25 Online:2006-02-25

摘要/Abstract

摘要： 　以聚硅酸铝为混凝剂, 用化学法絮凝处理医院污水, 并用二氧化氯杀菌。考查了pH 、加入混凝剂的体积、搅拌速度、搅拌时间、沉降时间等条件对CODCr去除率的影响。结果表明, 在pH 为7 .7 时, 每100 mL 污水中聚硅酸铝的体积为0 .2 m L, 搅拌速度为60 r/min ,搅拌时间为25 s, 沉降20 min 后, CODCr去除率可达88 %左右, 经二氧化氯杀菌后污水水质达到国家二级排放标准, 可直接排放, 不会对环境造成污染, 明显优于传统的铁系混凝剂的处理效果。聚硅酸铝原料来源广泛, 价格低廉, 水处理成本仅为0 .30 元/ t , 有实际应用的价值。

关键词: 　医院污水, 　混凝沉降, 　聚硅酸铝

Abstract:

Hospital waste water was treated with polysilicate aluminum as coagulant, and using chlorine dioxide to kill bacteria .Conditional experiments were investigated about influence of pH , volume of coagulant , mixing speed , mixing time and sedimentation time to the removal rate of CODCr .The results show that the removal rate of CODCr can reach 88% under the conditions of pH 7.7, 0 .2 mL flocculation agent per 100mL waste water , 60 r/ min mixing speed, 25 s mixing time and 20 min sedimentation time .Water quality can reach the 2nd standard to drain off water in China af ter killing bacteria with cholorine dioxide .It can be drained off directly without pollution .It is more perfect than traditional Fe -family coagulant .The raw materials of poly silicate aluminum are abundant and inexpensive .The cost of the waste water treatment is only 0 .30 Yuan/ t .The practical application of poly silicate aluminum is advisable

Key words: 　Hospital wastewater , 　Coagulating deposit, 　Poly silicate aluminium

宋　波, 丁保宏. 聚硅酸铝絮凝处理医院污水[J]. 辽宁石油化工大学学报, 2006, 26(2): 49-51.

SONG Bo,DING Bao -hong. Treatment of Hospital Waste Water With Polysilicate Aluminum[J]. Journal of Liaoning Petrochemical University, 2006, 26(2): 49-51.