有机碳源和DO对短程硝化的影响  

INFLUENCE OF ORGANIC CARBON AND DO ON PARTIAL NITROSOFICATION

作　　者：王敏[1,2] 汪建根[1,2] 王琴[1] 彭文利 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]浙江温州轻工研究院,浙江温州325000

出　　处：《水处理技术》2010年第8期56-58,66,共4页Technology of Water Treatment

基　　金：浙江省温州市科技计划项目(H20070032)

摘　　要：在SBR反应器中控制温度为(30±1)℃,pH为7.5～8.5,DO质量浓度为0.6～1.8mg·L-1,MLSS质量浓度稳定在5000mg·L-1左右,实现了短程硝化反硝化,并在C/N为1/1、1/2、1/4和DO质量浓度为0.3～0.4、0.4～0.6、0.6～1.6、1.6～2.0mg·L-1的情况下,对亚硝酸氮累积的效果进行对比试验。结果表明,氨氮的去除率随着C/N的增加而降低,C/N=1/4时氨氮去除率达到98.3%,亚硝态氮的累积率达到了99.95%,DO质量浓度为0.6～1.6mg·L-1时最适合于同步硝化好氧反硝化脱氮。出水氨氮质量浓度为0.57mg·L-1,亚硝态盐氮质量浓度为125.78mg·L-1,硝酸盐氮质量浓度为0.26mg·L-1。Under the condition that temperature was （30±1）℃; pH was 7.5～8.5 ; DO was 0.6～1.8 mg·L-1 and MLSS was about 5 000 mg·L-1. Nitrosofication could be achieved in SBR.And experimental study about the effects of C/N that was 1/1;1/2;1/4 and DO that was 0.3～0.4; 0.4～0.6; 0.6～1.6; 1.6～2.0 mg·L-1 on nitrite accumulation rate. The ammonium concentration removal rate reduces when C/N is increased, when C/N is 1/4, ammonium concentration removal could reach the highest rate of 98.3% and stable NO2--N accumulation rate could reach the highest rate of 99.95%.it is most suited for simultaneous nitrification and denitrification when DO is in the range of 0.6 ～1.6 mg·L-1.The ammonium concentration in the effluent was 0.57 mg·L-1, the stable NO2--N was 125.78 mg·L-1, the stable NO3--N was 0.26 mg·L-1.

关 键 词：短程硝化反硝化 C/N DO 

分 类 号：X703.1[环境科学与工程—环境工程]