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.
出处
《中国给水排水》
CAS
CSCD
北大核心
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)
关键词
剩余污泥
水解
氮
磷释放
有机物溶出
excess sludge
hydrolysis
release of nitrogen and phosphorus
organic dissolution
