固定化生物活性炭处理低浓度甲醇废水  

Slightly Polluted Methanol Wastewater Treatment Using Immobilized Biological Activated Carbon Method

作　　者：宋志文[1] 陈冠雄[1] 马放[2] 杨基先[2] 

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110016 [2]哈尔滨工业大学,哈尔滨150001

出　　处：《城市环境与城市生态》2001年第5期51-54,共4页Urban Environment & Urban Ecology

摘　　要：将分离筛选得到的甲醇降解菌固定在颗粒活性炭上 ,组成固定化生物活性炭反应系统 ,研究该反应系统处理轻度污染含甲醇废水的最佳运行条件和运行效果 ,结果表明 ,固定化生物活性炭处理轻度污染含甲醇废水的方法明显好于 3种树脂和单纯活性炭吸附处理 ,反应系统的最佳运行条件是水力负荷 0 .84- 0 .77m3/(m2 ·h) ,停留时间 5 7- 6 2min ,pH 7- 8,温度 2 0℃ - 30℃ ,溶解氧是去除甲醇的主要限制因子 ,甲醇含量为 11.3 - 2 3 .1mg/L时 ,去除率大于 90 % ,出水CODcr小于 12mg/L。此外还研究了生物活性炭生物膜的一些特点 。Bacteria capable of degrading methanol have been immobilized on granular activated carbon (GAC) to form immobilized biological activated carbon experimental system. The running conditions and running efficieny of this system are studied. The results show the effeciency of immobilized BAC degrading methanol is better than that of three kinds of resin and GAC, and the optimal running condition is pH 7-8, 20℃-30℃, HRT 57-62min and aeration. When the concentration of methanol is 11.3-23.1mg/L, the methanol degradation ratio is over 90%. The quantity of oxygen is a limiting factor of methanol degradation. Additionally the characteristics of BAC biological film are observed and absorption effeciency of BAC is analyzed.

关 键 词：甲醇废水 生物活性炭 生物处理 废水处理 固定化 低浓度 

分 类 号：X783[环境科学与工程—环境工程]