摘要
以合成废水为基质,研究了采用硫酸盐还原-甲烷化两相厌氧新型工艺处理含高浓度硫酸盐有机废水的系统运行工艺条件.结果表明,酸化-硫酸盐还原反应器的适宜pH为6.5-7.0;500mg/l的S^(2-)使SRB的硫酸盐还原活性下降;208mg/l的[H_2S]_L抑制MPB活性的95.4%;推导出估算气提塔出水回流比R的模型;以得到的工艺条件为依据处理了含19200mg/1的SO_4^(2-)和29400mg/l COD的味精废水.
The operational conditions of treating sulfate-rich organic wastewater were studied with the novel technology of two-phase sulfate reduction and methane fermentation using synthetic wastewater. It showed that when pH varied from 6.5 to 7.0, the concentration of S2- was lower than 500mg/l and [H2S]L above 208mg/l in the first phase reactor, sulfate could be reduced successfully with the SRB population dominating the MPB and the activity of MPB being highly suppressed. A model for estimating the recycle ratio of the effluent from the stripper was established. On the basis of these results, glutamate factory wastewater contain-ing 19200mg/l of SO42- and 29400mg/l of COD was treated by a modified model.
出处
《工业微生物》
CAS
CSCD
北大核心
1996年第3期1-9,共9页
Industrial Microbiology
关键词
废水处理
有机废水
硫酸盐还原
甲烷化
厌氧消化
Sulfate-rich organic wastewater, Sulfate reduction, Methane fermentation, Inhibition.
