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高氨氮味精废水的亚硝化/反亚硝化脱氮研究
引用本文:方士,李筱焕.高氨氮味精废水的亚硝化/反亚硝化脱氮研究[J].环境科学学报,2001,21(1):79-83.
作者姓名:方士  李筱焕
作者单位:1. 浙江大学环境工程系,
2. 浙江省冶金环保研究所,
摘    要:两段SBR法处理经稀释的味精废水有良好的有机质降解和脱氮效果,整个生物处理过程可分为碳氧化阶段和三个亚硝化/反亚硝化阶段,碳氧化阶段主要是有机质的降解和曝气吹脱除氮,随后通过亚硝化/反亚硝化反应实现生物脱氮和有机特的降解。SBRⅠ碳氧化阶段废水中有机质浓度较高,在降解过程中消耗废水中的溶解氧,竞争性抑制了亚硝化反应的发生,而亚硝化反应的形成是由于游离氨(FA)对硝酸细菌的抑制而形成的。

关 键 词:亚硝化/反亚硝化  两段SBR法  味精废水处理  腹氮
文章编号:0253-2468(2001)-01-0079-05
收稿时间:1999/12/27 0:00:00
修稿时间:1999年12月27

A study on removing nitrogen from highly nitrogenous MG wastewater with process of shortened nitrification/denitrification
FANG Shi and LI Xiaohuan.A study on removing nitrogen from highly nitrogenous MG wastewater with process of shortened nitrification/denitrification[J].Acta Scientiae Circumstantiae,2001,21(1):79-83.
Authors:FANG Shi and LI Xiaohuan
Affiliation:Dept.of environmental Engineering, Zhengjiang University, Hangzhou 310029 and Metallurgical Environmental Protection Institute of Zhejiang Province, Hangzhou 310013
Abstract:The dilute N rich monosodium glutamate(MG)wastewater was treated by two stage SBR process.The process can be divided into carbon oxidation stage and three shortened nitrification/denitrification stages.The pathway of nitrogen removal from N rich MG wastewater was proved to be via stripping with carbon oxidation stage and shortened nitrification/denitrification subsequently.In the carbon oxidation stage,DO was consumed by high concentrations of organic compound so that nitrification was repressed,Inhibition of nitrite oxidation by free ammonia(FA)resulted in the formation of shortened nitrification/denitrification process.
Keywords:two  stage SBR  highly nitrogenous wastewater  shortened nitrification/denitrification
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