摘要
含水率是预测生活垃圾能源回收和渗滤液污染潜力的关键参数,对选择合适的生活垃圾处理技术有重要意义.根据各物理组分组成比例和组分含水率,估算混合生活垃圾含水率,是规划和设计生活垃圾处理设施时的重要方法.本文通过分析近年来的文献资料,提出适合我国生活垃圾特征的典型物理组分含水率数据清单;比较20个中国城市文献数据的模拟估算与实测结果,发现对大部分城市的估算误差在10%以内,远低于采用丹麦,美国等发达国家数据的估算误差.对比中国、丹麦和美国的组分含水率数据清单,发现我国生活垃圾中的纸类、织物、塑料、渣石等组分的含水率显著偏高,原因在于我国生活垃圾的食品废物含量高,混合收集过程中水分在组分间迁移所致.
Moisture content is one of the key parameters to forecast energy recovery potential and leachate generationpotential during municipal solid waste treatment. To calculate the moisture content of mixed waste, a dataset of moisturecontent of individual fractions for Chinese waste was established through careful data screening. By utilizing this datasetto estimate moisture content of mixed waste in 20cities, the discrepancies between the estimated results and thelaboratory-analyzed values were less than 10% in most cases. This was significantly lower than the estimated results usingthe datasets in Denmark and in the USA. Compared to the situation in developed countries, the moisture contents of paper,textiles, and plastics fractions were significantly higher for Chinese waste, due to water diffusion from food waste.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
2018年第3期1033-1038,共6页
China Environmental Science
基金
国家重点基础研究发展计划资助项目(2011CB201504
2012CB719801)
国家环境保护标准项目(2015-4-1)
关键词
城市生活垃圾
垃圾组分
含水率
数据清单
水分转移
municipal solid waste
waste fraction
moisture content
datasets
water diffusion
