短程硝化过程中有机物浓度检测校核方法研究  

Verification method for the detection of organics in shortcut nitrification

作　　者：刘海秋[1] 傅金祥[1] 商涛[1] 

机构地区：[1]沈阳建筑大学市政与环境工学院,辽宁沈阳110168

出　　处：《供水技术》2011年第1期31-35,共5页Water Technology

基　　金：沈阳建筑大学辽宁省级重点实验室开放基金(SZ200902)

摘　　要：配置不同浓度的葡萄糖溶液、NaNO2溶液及混合溶液,考察了NO2-对有机物测定结果的影响,并在已实现短程硝化的SBR反应器中研究了有机物在亚硝酸盐积累过程中的降解情况及其对短程硝化的影响。结果表明,测定含NO2-废水中有机物浓度时需要采用公式COD校核=COD实测-[NO2--N]COD计进行校核。在DO较低(0.8～0.2 mg/L)时,系统可承受较高的COD浓度,NO2--N不会对细菌产生毒害作用,且系统在较高COD和NO2--N浓度下会发生明显的短程反硝化。The effect of NOf on the measurement of organics were investigated by preparing glucose solution, sodium nitrite solution and glucose-nitrite mixed solution in different concentrations, and the degradation of organics and its effect on shortcut nitrification during nitrite accumulation were studied in the SBR which had achieved nitrification. The result showed that the organics concentration was verified in terms of the formula （modified COD = measured COD - [ NO2- - N ] （in com ） as NO2 existing in wastewater. The system could endure relatively high concentration of COD and NO2- was not so toxic to the bacteria in the case of low concentration of DO （0.2 to 0.8 mg/L）, meanwhile shortcut denitrification was significant in the system when the concentration of COD was comparatively high.

关 键 词：短程硝化 NO_2^--N COD 校核 C/N 

分 类 号：X703.1[环境科学与工程—环境工程]