摘要
为寻求经济与环保的方式解决当前城市污泥的排放出路,促进污泥无害化及资源化利用,以期筛选出高效优质的有机肥料配方,并符合现行的有机肥料行业标准NY 525-2002。研究根据污泥的特性和当地条件选择合适的调理剂(如树枝、草炭、糠醛渣、畜禽粪便等)进行配比,通过静态堆置发酵技术,研究污泥堆肥过程中一些理化性质和微生物学特性动态变化。结果表明:经过42d的堆肥发酵,5个处理均达到腐熟,处理2、处理3配方合理,既可更多地消化污泥,又可得到养分含量较高的产品,符合现行的有机肥料行业标准NY 525-2002;堆肥过程中细菌较放线菌和真菌高出2～3个数量级,且细菌增长速度较另外2种菌快,细菌总数在第3天达到最高,真菌和放线菌相对滞后,在第7天总数达到最高,微生物数量的变化也反映着污泥堆肥的腐熟度。
In order to seek for the ways of emission of sewage sludge by economic and environmental methods,promote the harmless and resource utilization of sludge,filter out high quality organic fertilizer formula and consistent with industry standards NY 525-2002.Selecting suitable conditioner according to feature of sludge and local condition,the dynamic change of physicochemical properties and microbiological characteristics during the composting process were studied.The results showed that all treatment reached maturity,treatment 2,3 were better than the others,and the product quality was consistent with industry standards NY 525-2002.As a whole,the number of fungi and actinomyces were low whereas that of bacteria was much higher,about 2~3 magnitude.The number of bacteria reached the peak at the 3rd day.The number of fungi and actinomyces,relatively backward,reached the peak at the 7th day.Variation of amount of microorganism also reflected maturity of sewage sludge compost.
出处
《水土保持学报》
CSCD
北大核心
2011年第5期89-93,共5页
Journal of Soil and Water Conservation
基金
北京市农林科学院科技创新专项"农产品质量与农田环境基础数据平台建设"
关键词
污泥堆肥
理化性质
微生物
腐熟度
sewage sludge compost
physicochemical properties
microorganism
maturity
作者简介
刘善江（1965-），男，山东招远人，硕士，研究员，硕士生导师，主要从事土壤肥料与环境监测及其评价研究。E-mail：liushanjiang@263．aet
