产酸脱硫系统中COD/SO_4^(2-)对脱硫效果的影响  

Effect of COD/SO_4^(2-) on sulfate removal rate in acidogenic desulfuration system

作　　者：张奎[1] 史乐君[1] 刘海成[1] 

机构地区：[1]平顶山工学院市政工程系,河南平顶山467044

出　　处：《工业水处理》2007年第6期31-34,共4页Industrial Water Treatment

基　　金：河南省科技攻关项目(0424440066)

摘　　要：以两相厌氧生物处理工艺的产酸相作为硫酸盐还原单元,以食用红糖为碳源,通过连续流实验,重点研究了产酸相中m(COD)/m(SO42-)(C/S)对SO42-去除率的影响。在(34±1)℃、进水碱度300～500 mg/L、pH 6.0～6.2、氧化还原电位-250～-350 mV条件下,当进水C/S<2.0时,SO42-去除率<81%;当进水C/S为2.0～2.5时,SO42-去除率为81%～90%;当进水C/S>2.5时,SO42-去除率>90%。随着C/S的降低,SO42-的去除效果会有所降低。In order to investigate the effect of COD/SO4^2-（C/S） on sulfate removal rate in an acidogenic phase reactor of two-phase anaerobic bio-treatment system,a group of continuous-flow experiments have been conducted in an acidogenic sulfate-reducing reactor in which brown sugar is the source of carbon. The operation conditions of the reactor are controlled as follows ：temperature at （34±1）℃ ,influent alkalinity at 300-500 mg/L,pH at 6.0- 6.2,oxidation reduction potential at -250-350 mV. It is demonstrated that the sulfate removal rate is less than 81% when the influent C/S is less than 2.0,and 81% to 90% sulfate removal rate could be achieved when the influent C/S is at 2.0 to 2.5, and more than 90% when C/S is more than 2.5. In conclusion,with the influent C/S reduces, the sulfate removal rate reduces, too.

关 键 词：产酸脱硫反应器 SO4^2-去除率 硫酸盐还原菌 

分 类 号：X703.1[环境科学与工程—环境工程]