低温下生物强化SBR工艺处理苯胺废水的研究  

Bioaugmentation with aniline-degrading bacteria in SBR treating aniline wastewater at low temperature

作　　者：山丹[1,2] 马放[2] 王金生[1] 王晨[2] 

机构地区：[1]北京师范大学水科学研究院,北京100875 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《中国环境科学》2009年第8期844-849,共6页China Environmental Science

基　　金：国家"973"项目(2004CB185050);黑龙江省重大科技攻关项目(GB05C202)

摘　　要：采用生物强化的方法,将实验室筛选出的高效低温苯胺降解菌(菌群)投加到SBR反应系统中,考察高效菌低温生物强化对苯胺去除能力提高的效果,以及反应过程中TOC、TN、MLSS、MLVSS、SV、OUR、TOC等相关指标的变化.结果表明,维持反应器内温度为12℃、摇床转速160r/min、pH值为7、反应周期为48h等条件,3个强化系统(单菌系统、混菌系统、单菌加混菌强化系统)均可以提高苯胺的降解能力,苯胺降解率为74.2%～100%,TOC的去除率为83%～88.8%.由于高浓度苯胺的存在以及环境温度过低,导致硝化细菌活性受到严重抑制,因此TN没有得到较好地去除。Aniline-degrading bacteria（community） screened from low temperature were tested in laboratory SBR for their ability to enhance aniline removal and variation of interrelated index by biomass from a fullscale biotreatment system treating aniline. At 12~C, rotate speed of 160r/min, pH of 7 and each cycle of 48h, aniline removal was enhanced in three bioaugmentation systems enhanced, with the aniline and TOC removal rate were 74.2%-100% and 83%-88.8%, respectively. Due to existence of high concentrations of aniline, as well as the low ambient temperature, activity of nitrifying bacteria was seriously inhibited, and so did TN removal.

关 键 词：生物强化 苯胺降解 SBR 低温 菌株 

分 类 号：X703[环境科学与工程—环境工程]