氯酸钠抑制剂对SBBR工艺亚硝化过程的影响研究  

Effect of sodium chlorate inhibitor on the nitrosification process of SBBR process

作　　者：李亚峰[1] 高崇 伍健伯 张子一[1] Li Yafeng;Gao Chong;Wu Jianbo;Zhang Ziyi(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《工业水处理》2021年第6期242-245,251,共5页Industrial Water Treatment

基　　金：辽河流域水污染治理与水环境管理技术集成与应用项目(2018ZX07601001)。

摘　　要：研究了NaClO_(3)抑制剂对SBBR工艺亚硝化过程的影响,并对NaClO_(3)抑制剂潜在生态毒性进行了分析。研究结果表明,投加NaClO_(3)对NH_(4)^(+)-N的去除无明显影响,但可以提高NO_(2)^(-)-N的积累速度,当NaClO_(3)投加量为1mol/L时,实现NO^-_(2)-N积累的时间比不投加NaClO_(3)缩短了10 d;且活性污泥颗粒化程度更高,生成颗粒污泥速度更快。NaClO_(3)毒性分析结果表明,投加1 mol/L NaClO_(3)不会对水体造成二次污染。投加NaClO_(3)抑制剂有利于SBBR工艺亚硝态氮的快速积累,能够在更短的时间内实现亚硝化。The influence of NaClO_(3) inhibitor on the nitrosation process of SBBR process was studied,and the poten-tial ecotoxicity of NaClO_(3)inhibitor was analyzed.The research results showed that adding NaClO_(3) had no obvious eff-ect on the removal of NH_(4)^(+)-N,but it could increase the accumulation rate of NO_(2)^(-)-N.When the dosage of NaClO_(3) was 1 mol/L,the time to achieve NO_(2)^(-)-N accumulation was 10 days shorter than that of no NaClO_(3).The degree of granulation of activated sludge was higher,and the rate of granular sludge generation was faster.The NaClO_(3) toxicity analy-sis results showed that adding 1 mol/L NaClO_(3)would not cause secondary pollution to the water body.The addition of NaClO_(3) inhibitor was conducive to the rapid accumulation of nitrite nitrogen in the SBBR process and could achieve nitrosation in a shorter time.

关 键 词：厌氧氨氧化 SBBR 氯酸钠抑制剂 污水处理 

分 类 号：X703[环境科学与工程—环境工程]