水解酸化池中硫酸盐还原及抑制效果研究  

Effects of sulphate reduction and inhibition in hydrolytic acidification tank

作　　者：王千红[1] 金宝华[1] 程晓玲[2] 

机构地区：[1]安徽工业大学建筑工程学院,安徽马鞍山243002 [2]马鞍山市华骐环保科技发展有限公司,安徽马鞍山243051

出　　处：《供水技术》2011年第1期27-30,共4页Water Technology

摘　　要：考察了水解酸化池中硫酸盐还原效果的影响因素。结果表明:进水硫酸盐质量浓度、温度对硫酸盐还原效果的影响不大,硫酸盐还原率随停留时间的延长逐渐升高;氧化还原电位为-330 mV时,硫酸盐的还原率为12.1%,随着氧化还原电位的增大,硫酸盐还原效果减弱,氧化还原电位在-260 mV以上时,出水硫酸盐大于进水。因此,提高氧化还原电位可以有效抑制硫酸盐的还原。The infuencing factors of sulphate reduction in hydrolytic acidification tank were investigated. The results showed that the initial concentration of sulphate and temperature had few influence on sulphate reduction efficiency. The reduction rate of sulphate was increased with extension of retention time, and the reduction rate of sulphate was 12. 1% when the oxidation-reduction potential （ORP） was -330 inV. The reduction efficiency of sulphate was decreased as the increasing of ORP. The sulphate in effluent was greater than it in influent when the ORP was more than -260 mV. Therefore, improving ORP could inhibit sulphate reduction effectively.

关 键 词：水解酸化 硫酸盐 还原 氧化还原电位 

分 类 号：TU992.3[建筑科学—市政工程]