环境保护科学2011，Vol.37Issue(4)：37-40,4.
粪便与生活垃圾混合堆肥氮转化与腐熟度
Nitrogen Transformation and Maturity of Night Soil/ Municipal Solid Waste(MSW) Co-Composting Process
杜彦武 1欧阳红 2王秀蘅2
作者信息
- 1. 哈尔滨工业大学建筑设计研究院,哈尔滨,150090
- 2. 哈尔滨工业大学市政环境工程学院,哈尔滨,150090
- 折叠
摘要
Abstract
Static composting vessel with forced aeration was set to investigate the nitrogen transformation and maturity of night soil/municipal solid waste (MSW) co-composting with maize straw as amendments and lime as pH controller. Results showed: Nitrogen losses during composting were 26% ~ 49%, long thermophilic stage led to more nitrogen loss. Nitrogen losses rate at earlier stage increased by adding lime, but total losses did not increase for shortening composting period. Water soluble ammonia nitrogen climbed to summit 5.61 mg/gdw at earlier thermophilic stage , decreased to less than 0.34 mg/gdw till the end. Nitrate nitrogen increased to 1.84~4.05 mg/gdw, especially in temperature decreasing stage and maturity stage. NH4+-N/NO3--N ratio was less than 0.16 and water soluble carbon/total nitrogen ratio was less than 1.10,which could predict maturity of MSW and night soil co-composting.关键词
粪便/垃圾/堆肥/氮转化/腐熟度Key words
Night Soil/ Municipal Solid Waste/ Composting/ Nitrogen Transformation/Maturity引用本文复制引用
杜彦武,欧阳红,王秀蘅..粪便与生活垃圾混合堆肥氮转化与腐熟度[J].环境保护科学,2011,37(4):37-40,4.
