复合载体固定亚硝酸盐氧化菌处理养殖废水  

Treatment of aquaculture water by nitrite-oxidizing bacteria immobilized with assembled filters

作　　者：马寿光 郭安南[1] 章文军[1] 张德民[1] 

机构地区：[1]宁波大学应用海洋生物技术教育部重点实验室,宁波315211

出　　处：《生物学杂志》2013年第5期89-92,共4页Journal of Biology

基　　金：教育部科学技术研究重点项目(208053);浙江省自然科学基金人才培养项目(R305333);宁波市科技计划项目(No.2012C91028)

摘　　要：利用新型复合载体固定亚硝酸盐氧化菌,确定了挂膜条件,考察了水力停留时间对NO-2-N去除率的影响,并进行对虾养殖水处理。结果表明,新型载体可以较好地固定亚硝酸盐氧化菌,在水力停留时间为12 h、6 h、3 h、1h的条件下,NO-2-N的最大去除率分别为100%、98.77%、90.59%、59.02%。在HRT为1 h时,固定化的亚硝酸盐氧化菌可以高效去除养殖水体中的NO-2-N,去除率达76.94%。Nitrite-oxidizing bacteria were immobilized onto assembled filters for aquacuhure water treating. The condition for biofihn forming and the effect of hydraulic retention time （HRT） on NO2 -N removal was investigated. The nitrite-oxidizing bacteria were well immobilized onto the fillers at 30~（2 ,pH 7.0 -7.5 in aerated medium within 7 d. When the HRT was set at 12 h, 6 h, 3 h or 1 h, the removal ratio of nitrite in a synthetic wastewater was 100% , 98.77% , 90. 59% and 59.02% , respectively. With a HRT of 1 h, about 75% of the NO2 -N was removed from marine shrimp waste water.

关 键 词：亚硝酸盐氧化菌 复合载体 水力停留时间 养殖废水 

分 类 号：X172[环境科学与工程—环境科学]