园林废弃物与污泥混合堆肥的理化性质变化规律研究  

Study on Changes of Physicochemical Properties of Co-composting of Garden Waste and Sludge

作　　者：郭振胜 张可意 冀薇 陈新懿 卫佩行[3] GUO Zhen-sheng;ZHANG Ke-yi;JI Wei(School of Environment,Henan Normal University,Xinxiang,Henan 453007;School of Environmental Science and Engineering,Donghua University,Shanghai 201620)

机构地区：[1]河南师范大学环境学院,河南新乡453007 [2]东华大学环境科学与工程学院,上海201620 [3]江苏农林职业技术学院风景园林学院,江苏镇江212400

出　　处：《安徽农业科学》2023年第20期57-62,共6页Journal of Anhui Agricultural Sciences

基　　金：句容市科技计划项目(MS202007);河南省高等学校重点科研项目(23B610009)。

摘　　要：利用园林废弃物制备堆肥是废弃生物质利用的重要途径之一。为探究园林废弃物在堆肥过程中理化性质变化规律,采用紫荆枝叶、悬铃木树叶及木材加工剩余木屑3种材料作为填料,分别以相同比例与污泥混合,形成3种堆肥混合物(SR、SP、SW)并进行为期21 d的堆肥发酵试验。测试并分析了堆肥温度、pH、电导率、C/N、有机质及木质纤维素含量等理化性质变化规律。结果表明,SR的堆肥温度高于SW,SR的堆肥反应相比SW更加剧烈;综合比较三者的电导率曲线变化,SR的电导率较低且最先趋稳;SR的有机质及木质纤维素含量降解率较高且C/N较低,相比SW和SR的降解能力更强;根据SW及SR木质纤维素及粒径变化情况,可推断SR的堆肥效果优于SW。Composting from garden waste is one of the important ways to utilize waste biomass.To explore the changes of physicochemical properties of garden waste in the composting process,this paper uses three kinds of materials as fillers,namely,branches and leaves of redbud,leaves of plane tree and wood waste,to mix with sludge in the same proportion to form three compost mixtures(SR,SP,SW)and conduct a composting fermentation experiment for 21 days.The changes of physicochemical properties such as temperature,pH value,conductivity,C/N,organic matter and cellulose content of compost were tested and analyzed.The results showed that the composting temperature of SR was higher than that of SW,and the composting reaction of SR was more intense than that of SW;by comprehensive comparison of the conductivity curves,the conductivity of SR was lower and tended to be stable first;SR had a higher degradation rate of organic matter and cellulose content and lower C/N,which was stronger than SW and SR;according to the changes of cellulose and size of SW and SR,it can be inferred that the composting effect of SR was better than that of SW.

关 键 词：园林废弃物 污泥 堆肥 理化性质 

分 类 号：S141.4[农业科学—肥料学]