| 摘要: |
| 以北京市南宫堆肥厂现有堆肥工艺为对照,研究了添加倒仓破碎工艺和缩短堆肥周期对0~80 mm粒径生活垃圾堆肥腐熟度的影响,并在此基础上采用模糊数学法对新工艺的可行性进行了分析。试验以马家楼转运站经筛分的0~80 mm粒径垃圾为堆肥原料,共设3个处理。处理1为高温发酵8 d(中间倒仓破碎1次)→后熟化12 d→最终熟化12 d,堆肥时间共32 d;处理2为高温发酵7 d(中间倒仓破碎1次)→后熟化12 d→最终熟化12 d,堆肥时间共31 d;对照(CK)为高温发酵8 d(不倒仓破碎)→后熟化12 d→最终熟化12 d,堆肥时间共32 d。结果表明:与对照相比,处理1的评价级别最高,即增加倒仓破碎工艺可以促进堆肥的腐熟度,处理2的腐熟度与处理1相差较小,即在倒仓破碎的工艺基础上,缩短堆肥周期具有一定的可行性。 |
| 关键词: 生活垃圾 堆肥 倒仓破碎 腐熟度 模糊数学 |
| DOI：10.11841/j.issn.1007-4333.2011.04.013 |
| 投稿时间：2010-09-04 |
| 基金项目:国家科技部重大水专项 (2008ZX807209-03-3) |
|
| Process study of municipal solid waste compostingwith particle <80 mm |
|
WEI Hong-fei1, LI Guo-xue2, ZHANG Hong-yu2, GAO Dan2, SHI Dian-long2
|
| (1.College of Resources and Environmental Sciences,Jilin Agricultural University,Changchun 130118,China;2.College of Resources and Environmental Sciences,China Agricultural University,Beijing 100193,China) |
| Abstract: |
| This paper aims to study the compost maturity influenced by pile-turning and crushing and shortening composting periods,and then analyze the feasibility of these new processes by fuzzy mathematics,based on the existing processing mode of Nangong Compost Plant in Beijing.The experiment was conducted with composting materials 0-80 mm MSW screened out from Majialou transfer station,and designed as three treatments:T1:8 days of high temperature fermentation followed by 12 days of post-ripening fermentation and 12 days of terminal-ripening fermentation,turning and crushing once,32 days in total;T2:7 days of high temperature fermentation followed by 12 days of post-ripening fermentation and 12 days of terminal-ripening fermentation,turning and crushing once,31 days in total;CK:8 days of high temperature fermentation followed by 12 days of post-ripening fermentation and 12 days of terminal-ripening fermentation,no turning or crushing once,32 days in total.The results show that:compared with CK,the evaluation level of T1 is the highest,which means that the technology of pile-turning and crushing can improve the maturity of compost greatly;the maturity of T1 and T2 differs little,indicating the feasibility of shortening composting period under the process of pile-turning and crushing. |
| Key words: municipal solid waste composting pile-turning and crushing maturity fuzzy mathematics |
