双循环两相组合生物处理工艺强化脱氮机制研究  

A NEW BIOLOGICAL PROCESS—STUDY ON NITROGEN REMOVAL MECHANISM OF BI-CYCLIC TWO-PHASE(BICT)PROCESS

作　　者：潘杨[1] 黄勇[1] 李勇[1] 

机构地区：[1]苏州科技学院环境科学与工程系,江苏215011

出　　处：《环境工程》2005年第2期69-71,55,共4页Environmental Engineering

基　　金：江苏省社会发展计划项目 (BS2 0 0 2 332 ) ;江苏省高新技术产业发展项目 (JH0 2 1 1 9)

摘　　要：新型生物脱氮除磷工艺———双循环两相 (BICT)生物处理工艺 ,采用人工配水在设定工况下对BICT工艺试验装置的脱氮过程和脱氮机理进行了研究。试验表明 ,BICT工艺脱氮机理为序列式硝化反硝化。独立生物膜法硝化区的设置 ,强化了系统的硝化能力 ,从而提高了系统的脱氮效率的稳定性和可靠性。在适宜条件下脱氮效率可达 80 %以上 ,出水TN <1 5mg L。Under the operational condition, synthetic wastewater was used in the experiments to investigate the performance of nitrogen removal by the BICT of the reactor.The results of the experimental study can be concluded as follows.The nitrogen removal mechanism of BICTP is sequential nitrification and denitrification.A separte attached growth reactor was adopted to enhance the function of nitrification and increase the efficiency and the stability of nitrogen removal process.Under suitable conditions,the removal rate of TN(total nitrogen) can reach over 80%, and the effluent concentration of TN can be controlled below 15 mg/L.

关 键 词：双循环两相组合生物处理工艺 脱氮机制 序列式硝化反硝化 硝化能力 脱氮效率 废水 

分 类 号：X703[环境科学与工程—环境工程]