聚合硫酸铁对浓缩污泥的调理研究
Regulating Research of Polymeric Ferric Sulfate to Concentrated Sludge
王凤鹭 1杜慧玲 1董彭旭1
作者信息
- 1. 黑龙江省环境科学研究院,黑龙江哈尔滨150056
- 折叠
摘要
[目的]研究聚合硫酸铁(PFS)对浓缩污泥的脱水效果,为污水处理厂的污泥处理提供理论参考.[方法]以PFS作为调理剂,对浓缩池污泥进行调理,以污泥比阻为主要指标,研究了投药量、调理剂浓度、pH和搅拌强度对污泥过滤脱水性能的影响.[结果]PFS的投加量为l mL,浓度为6％,pH为7(未调节),快速搅拌速度为120 r/min,慢速搅拌速度为50 r/min的条件下,污泥由较难过滤转变为易过滤,污泥经过沉淀后上清液浊度减小.[结论] PFS对浓缩污泥具有较好的调理效果.
Abstract
[Objective] To research the dehydration effects of Polymeric Ferric Sulfate (PFS) to concentrated sludge,and to provide theoretical references for the sludge treatment of sewage treatment plant.[Method] With PFS as the conditioner,sludge in concentrated tank was adjusted.With sludge specific resistance as the main index,effects of drug injection quantity,conditioner concentration,pH value and stirring intensity on sludge filtration dehydration performance were researched.[Result] Under the conditions of 1 mL PFS injection quantity,6％ conditioner concentration,7 pH value,120 r/min rapid stirring rate and 50 r/min slow stirring rate,sludge could be changed from difficult filtration to easy filtration.After sedimentation,turbidity of sludge supernatant decreased.[Conclusion] PFS has relatively good conditioning effects on concentrated sludge.
关键词
聚合硫酸铁/污泥/化学调理/脱水Key words
PFS/Sludge/Chemical conditioning/Dehydration引用本文复制引用
基金项目
国家水体污染控制与治理科技重大专项(2012ZX07201002)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据