微氧和COD/SO_4^(2-)值对硫酸盐降解的影响  

INFLUENCE ON SULFATE DEGRADATION BY MICRO-AEROBIC ENVIRONMENT AND THE RATIO OF COD TO SO_4^(2-)

作　　者：周向[1] 宋存义[1] 邢奕[1] 张宝刚[2] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]北京大学环境工程系,北京100871

出　　处：《环境工程》2009年第S1期51-53,共3页Environmental Engineering

摘　　要：试验研究了微氧环境和不同COD/SO42-值下高浓度硫酸盐废水的降解,参照制药废水配置的进水保持稳定的COD浓度,改变SO42-浓度,分别在微氧和厌氧环境下考察了系统出水中SO42-、S2-、COD和微生物形态等因素。结果表明,微氧环境会对COD的降解产生不利影响,能够一定程度上抑制硫酸盐还原过程和实现硫酸盐还原产物的继续氧化,且上述影响的程度与COD/SO42-值有关。Degradation of high-concentration sulfate wastewater is studied under micro-aerobic environment and different ratio of COD to SO_4 2-.When the COD concentration in the influent prepared with reference to pharmaceutical wastewater keeps stable and the SO_4 2-concentration is changed,the factors in the effluent,such as SO_4 2-,S 2-,COD and microbe's patterns,are studied respectively under micro-aerobic environment and anaerobic environment.The results showed that micro-aerobic environment has adverse effects on degradation of COD,sulfate reduction process and continuing oxidation of sulfate reduction products,and these effects relate to the ratio of COD to SO_4 2-.

关 键 词：硫酸盐 微氧 COD/SO42-值 

分 类 号：X703[环境科学与工程—环境工程]