污泥硫酸盐还原菌_SRB_与硫化氢释放.docx

第 29 卷第 10 期2009年 10月环境科学学报Acta Scientiae Circum stantiaeVol. 29, No. 10 Oct. , 2009翁焕新 ,高彩霞 ,刘瓒 ,等. 2009. 污泥硫酸盐还原菌 ( SRB)与硫化氢释放 [ J ]. 环境科学学报 , 29 ( 10) : 2094 - 2102W eng H X, Gao C X, L iu Z,et a l.2009. Sulfate2reducing bacteria ( SRB)in sewage sludge and release of H2 S [ J ]. Acta Scientiae Circum stantiae, 29 ( 10) : 2094 - 2102污泥硫酸盐还原菌 ( SRB)与硫化氢释放翁焕新 3 ,高彩霞 ,刘瓒 ,章金骏浙江大学环境与生物地球化学研究所 ,杭州 310027收稿日期 : 2009202202修回日期 : 2009205204录用日期 : 2009208207摘要 :根据污泥低温干化工艺的特点 ,通过模拟试验 ,深入研究了不同类型污泥硫化氢在不同状态下的释放特征及其影响因素. 同时 ,通过培养 法 ,分析了不同类型污泥中 SRB的生活量和活性及其与硫化氢释放量的对应关系. 研究结果表明 : 污泥 SRB 的生活量越大 、活性越强 ,硫化氢 释放量就越大 ;中偏酸性污泥硫化氢的释放量大于碱性污泥 ,碱性污泥不仅能够中和硫化氢 ,而且可以抑制 SRB 的生长 ,减少因微生物作用而 产生的硫化氢 ;污泥硫化氢释放量随干化温度的增高而增加 ,硫化氢的最大释放量发生在污泥干化的前期. 上述研究结果为污泥干化过程中有 效地控制硫化氢提供了科学依据.关键词 :污泥 ;硫酸盐还原菌 ( SRB) ;硫化氢 ;释放文章编号 : 025322468 ( 2009) 1022094209中图分类号 : X703文献标识码 : ASulfa te2reduc ing bacter ia ( SRB)insewage sludge and relea se of H2 SW EN G Huanxin3, GAO Caixia, L IU Zan, ZHAN G J injunInstitute of Environment B iogeochem istry,Zhejiang University, Hangzhou 310027Received 2 February 2009;rece ived in revised form 4 May 2009;accepted 7 August 2009Abstract: Simulations were conducted on the release of hydrogen sulfide ( H2 S) from different types of sludge during the low2temperature sludge drying p rocess. The biomass and activity of sulfate2reducing bacteria ( SRB) in various sludges and the corresponding H2 S release were studied by cultivating the bacteria. The results showthat larger biomass and stronger SRB activity in sludge correspond to more H2 S release.Neutral to acidic sludges release more H2 S than alkaline sludges. The alkaline sludge not only neutralizes H2 S but also supp resses SRB growth, thus reducing the amount of H2 S p roduced by the m icrobes. During sludge drying, the amount of H2 S released increases with drying temperature. The maximal amount of H2 S release occurs in the early stage of sludge drying.The above fi