炭管膜曝气生物膜反应器亚硝化的启动试验研究  

Start-up experiment on short-cut nitrification by carbon tube membrane aeration biofilm reactor.

作　　者：孟军[1] 宫正[1] 杨凤林[1] 刘思彤[1] 孙翠[1] 

机构地区：[1]大连理工大学环境与生命学院,辽宁大连116023

出　　处：《中国环境科学》2008年第1期87-91,共5页China Environmental Science

基　　金：国家自然科学基金资助项目(50578023)

摘　　要：利用包裹无纺布的多微孔炭管为膜组件的膜曝气生物膜反应器，对不含有机碳的氨氮废水进行了亚硝化启动试验的研究．结果表明，在进水NH4^＋-N浓度为200mg／L，温度为（34±1）℃，pH值为7．5-8．3，HRT为8h的条件下，通过逐步降低炭管内腔气压进而降低供氧量的方法，反应器连续运行83d，实现了稳定的亚硝化．荧光原位杂交（FISH）分析表明，硝化细菌主要集中在靠近曝气膜，生物膜界面区域，其中亚硝酸菌占优势地位，而靠近生物膜/液体界面区域硝化细菌数量较少．The start-up experiment on short-cut nitrification on the ammonia-nitrogen wastewater without organic carbon was carried out in a carbon membrane-aerated biofilm reactor with nonwoven fabrics support around the gas-permeable carbon tube. Under the condition of infinent NH4^＋-N concentration of 200mg/L, temperature of （34±1）℃, pH value of 7.5-8.3, HRT 8h, stable short-cut nitrification was achieved within 83d of continuous operation by decreasing intra-membrane pressure gradually. Fluorescent in siva hybridization （FISH） analysis indicated that nitrifying bacteria were concentrated mainly near the member/biomass bound area, in which nitrosobacteria were dominant, and the nitrifying bacteria near the biomass/liquid bound area were small relatively.

关 键 词：炭管膜曝气生物膜反应器(CMABR) 亚硝化 荧光原位杂交(FISH) 

分 类 号：X703.1[环境科学与工程—环境工程]