摘要
按照杭州天子岭垃圾填埋场生活垃圾的成分,人工配制新鲜生活垃圾试样,放入密封的聚氯乙烯(PVC)桶并置入恒温降解箱内进行厌氧降解。待生活垃圾试样达到指定的降解龄期时,进行降解特性相关试验。结果表明:生活垃圾的密度随着降解龄期的增加而增加,密度与降解龄期的关系可用指数函数进行拟合,拟合系数为0.94;生活垃圾的自然应变随着降解龄期的增加而增加,自然应变与降解龄期的关系可用指数函数进行拟合,拟合系数为0.94;生活垃圾中有机质的含量随着降解龄期的增加而减小,有机质含量与降解龄期的关系可用指数函数进行拟合,拟合系数为0.99。建立了三个关系对应的指数函数表达式。研究结果可为大型垃圾填埋场的库容分析提供参考依据。
According to the composition of municipal solid waste in Tianziling waste landfill in Hangzhou,China,fresh municipal solid waste samples were prepared manually and placed in sealed polyvinyl chloride(PVC)barrels,and the barrels were placed in thermostatic degradation barrels for anaerobic degradation.When the municipal solid waste samples reached the specified degradation age,the related tests on degradation characteristics were carried out.The results show that:with increasing degradation age,the density of municipal solid waste increases gradually.The relationship between density and degradation age could be fitted with an exponential function,with the fitting coefficient of 0.94.With the increase of degradation age,the natural strain of municipal solid waste increases gradually.The relationship between the natural strain and degradation age could be fitted with an exponential function,with the fitting coefficient of 0.94.With the increase of degradation age,the organic matter content of municipal solid waste decreases gradually.The relationship between organic matter content and degradation age could be fitted with an exponential function,with the fitting coefficient of 0.99.And three corresponding exponential function expressions were established.The results can provide reference basis for the capacity analysis of a large-scale waste landfill.
作者
王樱峰
张振营
丁正坤
方月华
WANG Yingfeng;ZHANG Zhenying;DING Zhengkun;FANG Yuehua(School of Civil Engineering and Architecture,Zhejiang Sci-Tech University,Hangzhou 310018,China)
出处
《浙江理工大学学报（自然科学版）》
2018年第3期378-382,共5页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
国家自然科学基金项目(51478436
51678532)
关键词
生活垃圾
降解龄期
密度
自然应变
有机质含量
municipal solid waste
degradation age
density
natural strain
organic matter content
作者简介
王樱峰(1994-),男,山西运城,硕士研究生,主要从事环境岩土工程方面的研究。;通信作者:张振营,E-mail:zhangzhenyinga@163.com
