降解五氯酚的微氧颗粒污泥理化特性的研究

Study on Physichemical Characteristics of Micro-aerobic Granular Sludge for PCP Degradation

对实验室培养的微氧颗粒污泥的理化特性进行考察。结果表明微氧颗粒污泥粒径分布为:下层>中层>上层。各层污泥中Fe含量最大;K、Na、Ca、Mg、Ni、Co、Mn、Cu和Zn等元素在各层污泥中均能检测到。微氧颗粒污泥的比重、SVI值、含水率和沉降速率均优于普通活性污泥。

A study was carried out in this paper on physichemical characteristics of micro-aerobic granular sludge for pentachlorophenol（PCP） degradation. The results showed that size order of granules in reactor was. the lower layer 〉the middle layer〉the upper layer. In all layers, Fe was the most abundant element, and other elements like K, Na, Ca, Mg, Ni, Co, Mn, Cu and Zn were detected. The specific weight,SVI value, wet density, settling rate of micro-aerobic granular sludge were better than those of conventional activated sludge.