摘要
研究了将经乙醇型发酵后剩余污泥上清液作为反硝化外加碳源的可行性,并进行了上清液、甲醇和生活污水作为外加碳源的对比试验。结果表明,在相同的试验条件下,采用上清液和生活污水作为反硝化碳源时,系统反硝化过程中NO3--N的降解过程分为三个阶段,而以甲醇作为碳源时,NO3--N的降解过程为两个阶段;对比试验还发现,采用上清液代替甲醇作为反硝化系统的外加碳源,可在保持高反硝化速率的同时降低运行成本。
Research on the feasibility of using residual sludge supernatant fluid after ethanol type fermentation as an additive carbon source for denitrification has been studied. In addition, contrast tests on the denitrifying characteris- tics of supernatant, methanol and domestic sewage as additive carbon sources has been accomplished.. The results show that under the same experimental conditions ,when carbon sources, the degradation process of NO3--N in supernatant and domestic sewage are used as denitrification the process of system denitrification is divided into three stages, while methanol is used as the carbon source, the degradation process of NO3--N is divided into two stages. It is also found in the contrast tests that using supernatant the process of system denitrification, high denitrification fluid, instead of methanol, as the additive carbon source in rate can be maintained, while low operation cost reduced.
出处
《工业水处理》
CAS
CSCD
北大核心
2015年第5期23-26,共4页
Industrial Water Treatment
基金
住房和城乡建设部科学技术项目(2014-K7-019)
吉林省教育厅"十二五"科学技术研究项目(吉教科合2014243)
2012年吉林省高等学校大学生创新创业训练计划项目
关键词
上清液
碳源
反硝化速率
supernatant
carbon source
denitrification rate