不同溶解氧浓度下微氧颗粒污泥降解五氯酚的特性  

Performance of Pentachlorophenol Degradation with Microaerobic Granular Sludge under Different Dissolved Oxygen Concentration

作　　者：蓝惠霞[1] 王乐乐[1] 陈元彩[2] 曾应坚[3] 

机构地区：[1]青岛科技大学环境与安全工程学院,山东青岛266042 [2]华南理工大学制浆造纸工程国家重点实验室,广东广州510640 [3]华南理工大学机动车辆技术设备厂,广东广州510640

出　　处：《造纸科学与技术》2010年第4期65-67,共3页Paper Science & Technology

基　　金：国家自然科学基金项目(20676045;20977033)

摘　　要：微氧颗粒污泥工艺能够同时进行好氧氧化和厌氧还原过程,是处理五氯酚(PCP)的理想方法。本文对微氧颗粒污泥降解PCP限制性生态因子溶解氧浓度(DO)的作用规律进行了研究,为加速工业应用提供工艺参数。实验结果表明,在微氧范围内(DO浓度小于1.0mg/L),CODCr有较高的去除率,产气量较高;适当增加DO浓度,有利于PCP达到彻底脱氯;而DO浓度较高时,不仅不利于CODCr的去除以及PCP的脱氯,而且吹脱作用会导致周围空气的污染。It is an approving technology of mieroaerobic granular sludge for pentachlorophenol （PCP） degrading because aerobic oxidation and anaerobic reduction can simultaneously occur. In this paper, effects of restrictive ecological factor of dissolved oxygen （DO） concentration on the system were studied. Experimental results showed, increasing of DO concentration in microaerobic range （ DO ≤ 1.0mg/L） was in favor of CODc, removal and PCP dechlorination, and gas production was high, but DO concentration beyond this range, negative effects might occur, which was adverse to CODcr removal and PCP dechlorination, moreover caused air pollution because of the volatilization of organic matters from the system by aeration.

关 键 词：溶解氧 微氧颗粒污泥 五氯酚 

分 类 号：X793[环境科学与工程—环境工程]