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卧式螺旋式污泥好氧动态堆肥装置的试验研究——含水率对污水厂消化污泥一次发酵的影响
引用本文:张智,罗金华,马明初,郭唐仁.卧式螺旋式污泥好氧动态堆肥装置的试验研究——含水率对污水厂消化污泥一次发酵的影响[J].环境工程,2004,22(2):66-69.
作者姓名:张智  罗金华  马明初  郭唐仁
作者单位:1. 重庆大学城市建设与环境工程学院,重庆,400045
2. 重庆市排水有限公司,重庆
摘    要:采用自行设计的卧式螺旋式污泥好氧堆肥装置 ,利用间歇式动态工艺 ,以木屑为调理剂 ,对厌氧消化污泥进行了中温堆肥的试验研究。本试验控制物料配比为污泥∶木屑 =10∶1 0 (湿重比 ) ,通气量为 5 0m3 h·t,采用 5组不同的含水率 (5 1 0 %~ 71 0 % )对物料进行一次发酵。研究了含水率对该螺旋式动态堆肥装置的影响 ,重点探讨了含水率与堆体温度、有机物去除和pH、TN、有机C变化的关系 ,确定了该装置的最佳含水率为 5 0 %~ 5 5 % ,并且认为在同等通气条件和物料配比下 ,在一定范围内 ,含水率越高 ,堆体温度越低 ,对有机物的降解也越不利

关 键 词:污泥处理  好氧堆肥装置  含水率  一次发酵

EXPERIMENTAL STUDY ON HORIZONTAL SPIRAL DEVICE FOR AEROBIC SLUDGE DYNAMIC COMPOSTING——EFFECT OF MOISTURE CONTENT ON THE PRIMARY FERMENT OF DIGESTED SLUDGE
Zhang Zhi et al.EXPERIMENTAL STUDY ON HORIZONTAL SPIRAL DEVICE FOR AEROBIC SLUDGE DYNAMIC COMPOSTING——EFFECT OF MOISTURE CONTENT ON THE PRIMARY FERMENT OF DIGESTED SLUDGE[J].Environmental Engineering,2004,22(2):66-69.
Authors:Zhang Zhi
Institution:Zhang Zhi et al
Abstract:A horizontal spiral device for aerobic composting was developed.By using this device,a pilot-scale test on treating anaerobic digested sewage sludge was carried out,employing the technique of batch-dynamic composting with wood dust as amendment at a moderate temperature.Five kinds of various moisture contents (ranged from 51.0% to 71.0%) were adopted for the primary fermentation when the ratio of sewage sludge to wood dust is 10∶1(wet weight) and the aeration rate is 5.0 m 3/h·t.The influence of different moisture contents upon the pile temperature,organic matter,pH value,total nitrogen and organic carbon was investigated.This study indicated that the optimal moisture content was 50%~55% for using this device,and the higher the moisture content,the lower the pile temperature and the more adverse effect on degrading organic matter.
Keywords:sludge treatment  aerobic composting device  moisture content and primary ferment  
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