摘要
城市污水处理厂产生的剩余污泥常用作厌氧水解产酸的原料,可为反硝化工艺提供可利用碳源.本文通过实验研究了在不同的驯化污泥与未驯化污泥质量比(n)下,剩余污泥厌氧水解酸化过程中pH、ORP、SCOD、TOC、TN、NO3-N、NO2-N和MLSS的变化规律.综合各因素分析,结果表明:最佳配比方式为n=1∶2.在此配比下,SCOD和TOC分别能达到的最大值为5006.7mg/L和2060mg/L,反应时间为3d.
Residual sludge produced by urban sewage treatment plants is commonly used as the raw materials of anaerobic hydrolysis acidification, and provides the available carbon source for denitrification technology. This paper analyzed the change rules of pH, ORP , SCOD, TOC, TN, NO^-N, NO2-N and MLSS in the anaerobic hydrolysis process of residual sludge under different mass ratio of acclimated sludge and unacclimated sludge. The results show that the best ratio is 1 ~ 2. Under this sludge ratio, SCOD and TOC can respectively achieve maximum 5006.7 mg/L and 2060 mg/L and the reaction time is 3 d.
出处
《杭州师范大学学报（自然科学版）》
CAS
2013年第5期446-451,455,共7页
Journal of Hangzhou Normal University(Natural Science Edition)
基金
浙江省新苗计划项目(ZX13005001033)
国家863计划子课题项目(2011AA060801-6)
关键词
污泥配比
剩余污泥
水解酸化
sludge ratio
residual sludge
hydrolysis acidification
