基于不同目标的大型生活垃圾堆肥处理工艺的优选

以北京市南宫堆肥厂为例,利用模糊数学和层次分析法对10种堆肥处理工艺进行了比较研究.结果表明,以腐熟度指标为单目标的最优堆肥工艺:以0~80mm生活垃圾为堆肥原料,高温发酵8d,在第4d时翻堆破碎1次,后熟化12d最终熟化12d;以经济指标为单目标的最优堆肥工艺:以0~80mm生活垃圾为堆肥原料,高温发酵8d,后熟化12d,最终熟化12d;以腐熟度指标和经济指标为双目标的最优堆肥工艺:采用0~80mm生活垃圾为物料,高温发酵8d其中翻堆破碎1次,后熟化12d,最终熟化12d.

Technology optimizing in municipal solid waste compsfing plant based on different object

10 kinds composting processes at the Beijing Nan-gong Composting Plant were researched based on fuzzy mathematics and analytical hierarchy process (AHP) analysis. The optimal composting technology of using maturity indexes as the single object required 0~80mm of domestic waste as raw material. And the raw material were mixed and crushed once on the fourth day of the 8 day thermophilic fermentation, followed by a 12 day deuteric maturity period and a 12 day ultimate maturity period(technology 1). The optimal composting technology of using economic index as the single object was same as technology 1 without the crushing process. The optimal composting technology of using maturity indexes and economic indexes as the combined objects was same as technology 1.