含盐污泥厌氧消化过程中金属离子对硫化氢产气率的抑制作用  

Inhibition of metal ions on the gas producing rate of hydrogen sulfide in the process of anaerobic digestion of salt-bearing sludge

作　　者：苗英霞[1] 王静[1] 张雨山[1] 

机构地区：[1]国家海洋局天津海水淡化与综合利用研究所,天津300192

出　　处：《工业水处理》2010年第3期16-19,共4页Industrial Water Treatment

基　　金：中央级公益性科研院所专项资金项目(2007-G12);国家"十一五"科技支撑计划项目(2006BAB03A08)

摘　　要：含盐污泥中含有大量硫酸盐和多种有机硫化物,在厌氧消化过程中会产生H2S。作者向含盐污水处理系统的污泥中投加不同金属离子,研究了金属离子对硫化氢产气率的抑制作用。研究结果表明:一定量的金属离子能够有效抑制恶臭气体硫化氢的产生,其抑制作用大小顺序为Cu2+>Zn2+>Fe2+>Al3+,最大抑制率为46.15%。Salt-bearing sludge contains a large number of sulfate and a variety of organic sulfides, which will pro- duce stench hydrogen sulfide gas in the process of anaerobic digestion. The inhibition effect of metal ions on H2S gas producing has been studied. Four kinds of metal ions are added into the salt-bearing sewage treatment system. The result shows that a certain amount of metal ions can effectively suppress the production of stench H2S gas. The inhi- bition order is Cu2＋〉Zn2＋〉Fe2＋〉Al3＋ and the maximum inhibition rate is 46.15%.

关 键 词：金属离子 污泥 硫化氢 厌氧消化 

分 类 号：X703.1[环境科学与工程—环境工程]