城镇污水厂剩余污泥生物减水中几个影响因素的分析

目的]研究城镇污水厂剩余污泥的生物减水。方法]采用肇庆市鼎湖污水处理厂的脱水污泥进行生物减水的研究,对污泥堆肥中影响减水的几个因素进行了试验分析。结果]以可溶性糖含量高的农产品废弃物作为调理剂,可以加快减水;在堆肥中加入菌剂的作用不大;堆体的高度和体积不宜太大;在通风频率不变的情况下,适当增大通风强度,有利于污泥的快速减水。结论]该研究为污水厂剩余污泥进行生物减水提供了科学依据。

Alalysis on Several Affect Factors of Bio-reduce Water in Reminder Sludge for Town Sewage Plant

Objective ] The research aimed to study the biological reduction of water in Reminder Sludge for Town Sewage Plant. Method ] Using bio-reduce water in Reminder Sludge for Dinghu Sewage Plant in Zhaoqing, several factors that affecting dewater in the sludge compost were analyzed. Result ] To high content of soluble sugar in agricultural waste as a conditioner that can accelerate the reduction of water; the role of adding bacteria gent to the compost is not much ; The height and volume of the pile should not be too big. It is advantageous to fast water reducing of sludge that increasing the ventilation under the condition of the ventilation rate unchanged. Conclusion] The study provides the scientific basis for the biological reduction of water in remainder sludge in sewage plant.