关键词: 农村地区, 园林垃圾, 易腐垃圾, 协同堆肥, 堆肥产品

Abstract: he 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 m3/min in the heating stage, and the maximum ventilation volume of single warehouse was 0.16 m3/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.

Key words: rural area, garden waste, perishable waste, collaborative composting, compost product