农村地区园林垃圾与易腐垃圾协同堆肥试验研究  

Experimental Study on Collaborative Composting of Garden Waste and Perishable Waste in Rural Areas

作　　者：陈海滨[1] 杨黎洁 许笑笑 郭帅 梁莎[1] 杨家宽[1] CHEN Haibin;YANG Lijie;XU Xiaoxiao;GUO Shuai;LIANG Sha;YANG Jiakuan(School of Environmental Science and Engineering,Huazhong University of Science and Technology,Hubei Wuhan 430074)

机构地区：[1]华中科技大学环境科学与工程学院,湖北武汉430074

出　　处：《环境卫生工程》2023年第6期40-45,53,共7页Environmental Sanitation Engineering

基　　金：国家重点研发计划专项(2018YFD1100604);武汉市科技计划项目(2020020601012277)。

摘　　要：选用二次性好氧堆肥工艺,采用装配式间歇动态堆肥装置,在安徽省凤阳县小岗村实地进行园林垃圾和易腐垃圾协同动态堆肥试验,研究了不同原料配比下含水率对协同堆肥效果的影响。由能量守恒计算出升温阶段单仓最低通风量为0.017 m^(3)/min,高温阶段单仓最高通风量为0.16 m^(3)/min。协同堆肥试验结果表明:原料含水率越高,初级堆肥温度效果和减量化效果越好。当原料含水率为73.15%时,进料10 h后温度即可上升至65℃,且可保持大于65℃持续3 d以上,优于传统堆肥含水率(45%~65%)条件下的堆肥效果。不同含水率下园林垃圾与易腐垃圾协同堆肥在初级堆肥阶段均能实现堆肥产品的无害化,再经过1个月的次级堆肥后,堆肥产品的总养分、有机物含量等指标满足NY/T 525—2021有机肥料要求,种子发芽指数可达到50%,基本满足就地利用的要求。The secondary aerobic composting process and the prefabricated batch dynamic composting device were adopt,the collaborative dynamic composting experiment of garden waste and perishable waste was conducted on site in Xiaogang Village,Fengyang County,Anhui Province.The influence of water content on the collaborative composting effect under different raw material ratios was studied.Based on energy conservation,the minimum ventilation volume of single warehouse was 0.017 m^(3)/min in the heating stage,and the maximum ventilation volume of single warehouse was 0.16 m^(3)/min in the high temperature stage.The results of collaborative composting experiment showed that the higher the water content of raw materials,the better the temperature and reduction effect of primary composting.When the moisture content of raw material was 73.15%,the temperature could be reached to 65℃after ten hours of feeding,and could be maintained above 65℃for more than three days,which was better than the composting effect under traditional composting conditions with a moisture content of 45%-65%.The collaborative composting of garden waste and perishable waste with different moisture content could realize harmless products in the primary composting stage.After one month of secondary composting,the total nutrient and organic matter content of the compost product met the requirements of NY/T 525—2021 Organic Fertilizer,and the seed germination index could reach 50%,which basically met the requirements of local utilization.

关 键 词：农村地区 园林垃圾 易腐垃圾 协同堆肥 堆肥产品 

分 类 号：X799.3[环境科学与工程—环境工程] X705