| 城市生活垃圾机械生物处理效果 |
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| 引用本文： | 屈阳, 张进锋, 朱卫兵, 潘天高, 王庆国, 金慧宁. 城市生活垃圾机械生物处理效果[J]. 环境工程学报, 2015, 9(1): 401-406. doi: 10.12030/j.cjee.20150166 |
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| 作者姓名： | 屈阳 张进锋 朱卫兵 潘天高 王庆国 金慧宁 |
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| 作者单位： | 1.江苏维尔利环保科技股份有限公司, 常州 213125 |
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| 基金项目： | 住房和城乡建设部2013年科学技术项目计划—研究开发项目(2013-K7-13,K7201333) |
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| 摘 要： | 采用机械生物处理工艺研究了淋洗水解、脱水与好氧生物干燥对城市生活垃圾的处理效果。结果表明:在淋洗水解及压榨脱水机械生物处理阶段,控制淋洗液与生活垃圾重量比2:1,停留时间1.2~1.4 d条件下,生活垃圾可以减量49.7%。而过程中产生的淋滤液COD为 32 939 mg/L、pH为5.1、COD:N:P=261:5:3.6,可以进行厌氧消化处理或作为碳源进行资源化利用。在好氧生物干燥阶段,通风量采用0.08 m3/min,2~3 d堆体温度可升至73℃,7 d左右即可产出LCV高达15 000 kJ/kg左右的高品位垃圾衍生燃料(RDF),其产率为38.2%,氯元素含量低于0.5%,重金属含量较低,满足燃料要求。
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| 关 键 词： | 生活垃圾 机械生物处理 垃圾衍生燃料 淋滤液 减量 |
| 收稿时间： | 2014-01-11 |
Mechanical biological treatment effect of MSW |
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| Qu Yang, Zhang Jinfeng, Zhu Weibing, Pan Tiangao, Wang Qingguo, Jin Huining. Mechanical biological treatment effect of MSW[J]. Chinese Journal of Environmental Engineering, 2015, 9(1): 401-406. doi: 10.12030/j.cjee.20150166 |
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| Authors: | Qu Yang Zhang Jinfeng Zhu Weibing Pan Tiangao Wang Qingguo Jin Huining |
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| Affiliation: | 1.Jiangsu WELLE Environmental Co.Ltd, Changzhou 213125, China |
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| Abstract: | The influence of percolation hydrolysis, dewatering and aerobic biodrying on the treatment of municipal solid waste (MSW) using mechanical biological treatment (MBT) plants was discussed.The output quality, total solid in MSW, refined derived fuel (RDF) content and leachate properties were critically examined.The results showed that the quality of MSW could decrease 49.7% when the mass ratio of percolation water to MSW was 2:1 and the residence time was 1.2~1.4 d during the stage of percolation hydrolysis and dewatering in the MBT.Moreover, the COD concentration and pH value of leachate were 32 939 mg/L and 5.1, respectively.The ratio of COD, total nitrogen and total phosphorus was 261:6:3.6, meaning that the leachate could be processed by anaerobic digestion treatment or used as a carbon source for resources utilization.In addition, the body temperature of MSW could rise to 73℃ when the ventilation rate was 0.08 m3/min and the residence time was 2~3 d during the aerobic biodrying state.Furthermore, a high quality RDF was produced, which the low calorific value, recovery rate and chlorine content was 15 000 kJ/kg, 38.2% and less than 0.5%, respectively after 7 d.Besides, the heavy metal content in RDF was very low and will well meet the requirements of fuel. |
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| Keywords: | municipal solid waste mechanical biological treatment refised derived fuel leachate reduction |
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