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陈溧,李志强.不同渗滤液水位对垃圾土产气特性的影响研究[J].河北工程大学自然版,2018,35(4):95-100
不同渗滤液水位对垃圾土产气特性的影响研究
Effect of different leachate water lerel on gas production characteristics of municipal solid waste degradation
投稿时间:2017-12-24  
DOI:10.3969/j.issn.1673-9469.2018.04.020
中文关键词:  垃圾土  降解规律  含水率  气体成分  渗滤液
英文关键词:municipal solid waste  degradation  moisture content  LFG composition  leachate
基金项目:国家自然科学基金资助项目(重点项目41510637)
作者单位
陈溧 河海大学 岩土力学与堤坝工程教育部重点实验室, 江苏 南京 210098
河海大学 岩土工程研究所, 江苏 南京 210098 
李志强 河海大学 岩土力学与堤坝工程教育部重点实验室, 江苏 南京 210098
河海大学 岩土工程研究所, 江苏 南京 210098 
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中文摘要:
      针对填埋场垃圾含水率沿纵向差异性较大,且较多垃圾处于渗滤液液面以下,降解规律较为复杂等问题。对无锡桃花山填埋场新鲜垃圾进行分拣、破碎,分别使用渗滤液原液、渗滤液(pH=7.45)及清水(pH=7.45)进行含水率控制,通过恒温水槽控制降解温度为41℃,进行现场垃圾的室内温控降解试验。试验结果表明:相同含水率条件下,产气速率第一峰值、二次产气开始时间及累计产气量,均为原液试样 > 渗滤液(pH=7.45)试样 > 水(pH=7.45)试样,且与含渗滤液(水)率呈正相关。
英文摘要:
      Municipal solid waste(MSW) produce plenty of leachate in the process of landfill after hydrolysis and degradation,which leads to the moisture content of the MSW along the depth direction very different. Most of the MSW is below the liquid level of leachate,which makes the degradation rules complicated. The samples from Wu Xi Tao hua shan Landfill were crushed by scissors and mixed, and the water content was carried out by using leachate,leachate (pH=7.45) and water(pH=7.45). The changing external temperature was simulated by adjusting the water tank in the apparatus,and he temperature of the tank water was monitored to keep 41℃ during this degradation test. The following conclusions were drawn:Under the same moisture content,the first peak of gas generation rate, the start time of secondary gas production and LFG cumulative volume have the same rule,which is specimen with leachate > specimen with leachate (pH=7.45) > specimen with water(pH=7.45),and correlated with leachate (water) rate.
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