污泥浓度对剩余污泥水解酸化过程的影响  

Effect of Different Sludge Concentrations on Hydrolysis Acidification of Excess Sludge

作　　者：温沁雪[1,2] 薛莲[1] 陈志强[1,2] 

机构地区：[1]哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090 [2]城市水资源开发利用<北方>国家工程研究中心,黑龙江哈尔滨150090

出　　处：《中国给水排水》2012年第21期103-106,共4页China Water & Wastewater

基　　金：中国博士后科学基金特别资助项目;城市水资源与水环境国家重点实验室基金资助项目(2012TS01)

摘　　要：为了较全面地了解污泥水解酸化过程中溶出物(碳水化合物、蛋白质、氮、磷)的释放特性,研究了不同浓度的二沉污泥在60 h的水解酸化过程中有机物、氮、磷的释放效果。试验结果表明,污泥浓度越高,污泥溶出物质的绝对量越大,而单位VSS的贡献量则较小。综合比较,污泥浓度为15 000 mg/L时,水解释放的氨氮和正磷酸盐量相对较少,碳水化合物和蛋白质的单位释放量相对较高,即在提供较多产酸基质的同时,带来的氮、磷负荷较小。To comprehensively understand the release characteristics of dissolved substances （ carbohydrate, protein, nitrogen and phosphorus） during hydrolysis acidification, the release of organic substances, nitrogen and phosphorus from secondary sludge with different concentrations during the 60 h of hydrolysis acidification was investigated. The results showed that with the increase of sludge concentra- tion, the absolute amount of dissolved substances increased, while the amount contributed by specific VSS decreased. More carbohydrates and proteins were released compared to ammonia nitrogen or ortho- phosphate at sludge concentration of 15 000 mg/L, which was the optimal sludge concentration for sludge hydrolysis.

关 键 词：剩余污泥 水解 氮 磷释放 有机物溶出 

分 类 号：X703[环境科学与工程—环境工程]