| 华南某市生活垃圾组成特征分析 |
| 摘要点击 2198 全文点击 12545 投稿时间：2014-06-12 修订日期：2014-08-20 |
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| 中文关键词 城市生活垃圾 组成 热值 因子分析 |
| 英文关键词 municipal solid waste(MSW) composition caloric value factor analysis |
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| 中文摘要 |
| 依据城市生活垃圾采样分析方法对华南某市20个街镇生活垃圾的物理性质和物理组成进行历时一年的研究. 结果表明,研究区域垃圾平均容重为0.22×103 kg·m-3,垃圾三组分(水分、灰分和可燃物)所占比例分别为55.0%~66.9%、18.6%~30.3%、69.7%~81.4%,有机质含量比例为50.1%~58.0%,各研究区镇垃圾热值范围为6570~9652 kJ·kg-1,平均热值为8272 kJ·kg-1,高于世界银行推荐的垃圾焚烧所需最低热值(7000 kJ·kg-1). 其它物理组分所占比例分别如下: 厨余类为39.8%~53.3%,橡塑类为16.5%~33.4%,纸类为5.61%~7.95%,纺织类为1.14%~5.16%,竹类为2.49%~5.12%,玻璃类为1.10%~1.47%,混合类5.86%~7.57%,灰土类2.46%~6.73%,金属0.1%~0.32%,陶瓷0.4%~0.69%. 相关分析和主成分分析结果表明纺织类、橡塑类、纸类、可燃物比重对焚烧有促进作用,厨余类、玻璃类、容重、灰分、含水率、灰土等则对焚烧有一定的负影响. |
| 英文摘要 |
| Using the MSW(municipal solid waste) sampling and analysis methods, the composition characteristics of MSW in south China were investigated. The results showed that: the average MSW bulk density was 0.22×103 kg·m-3, the percentages of water, ash and combustible were 55.0%-66.9%, 18.6%-30.3% and 69.7%-81.4%, respectively. The organic contents were 50.1%-58.0%. The waste low caloric value(wet base) ranged 6570-9652 kJ·kg-1, and the average of waste low caloric value(wet base) was 8272 kJ·kg-1, which was higher than the recommended value of World Bank(7000 kJ·kg-1). The percentage composition of MSW was: 39.8%-53.3% kitchen waste garbage, 16.5%-33.4% rubber and plastics, 5.61%-7.95% paper, 1.14%-5.16% textile products, 2.49%-5.12% bamboo products, 1.10%-1.47% glass, 5.86%-7.57% mixed materials, 2.46%-6.73% dust, 0.1%-0.32% metal, and 0.4%-0.69% ceramic. The correlation analysis and factor analysis showed that: the high proportions of textile, rubber and plastics, paper, and combustible materials had a positive effect on the MSW incineration, while the high proportions of kitchen waste garbage, glass, MSW bulk density, ash, water content and dust had a negative effect on the MSW incineration. |
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