山东科学 ›› 2021, Vol. 34 ›› Issue (5): 104-112.doi: 10.3976/j.issn.1002-4026.2021.05.013

• 环境与生态 • 上一篇    下一篇

污泥-生活垃圾混合填埋体降解产气过程

宁顺理1,洪思远1,沈世龙1,俞演名1,李磊2*   

  1. 1.中国电建集团华东勘测设计研究院有限公司,浙江 杭州 310000;2.河海大学 地球科学与工程学院,江苏 南京 210000
  • 收稿日期:2020-09-23 出版日期:2021-10-14 发布日期:2021-10-18
  • 通信作者: 李磊,男,教授,研究方向为环境地质、环境岩土以及固体废弃物处理处置及资源化利用。Tel: 13951966720,E-mail: lilei@hhu.edu.cn
  • 作者简介:宁顺理(1986—),男,硕士,高级工程师,研究方向为水环境综合整治设计。E-mail: ning_sl@ecidi.com

Gas generation process in sludge-municipal solid waste mixed landfill

NING Shun-li1,HONG Si-yuan1,SHEN Shi-long1,YU Yan-ming1,LI Lei2*   

  1. 1. Power China Huadong Engineering Co., Ltd., Hangzhou 310000,China;2. School of Earth Sciences and Engineering,Hohai University,Nanjing 210000,China
  • Received:2020-09-23 Online:2021-10-14 Published:2021-10-18

摘要: 通过室内实验研究了不同污泥添加量条件下污泥-生活垃圾混合填埋体的产气过程,并建立了污泥-生活垃圾降解产气过程的动力学模型。研究结果表明,污泥-生活垃圾混合填埋体的产气过程分为三个阶段,即调整阶段、加速阶段和衰减阶段;随着污泥添加量的增加,累计产气量逐渐增大,但是当污泥添加量超过30%后,累计产气量逐渐减少;添加污泥后,产气过程的产甲烷阶段明显提前,并且降解产气中CH4体积分数提高,缩短了填埋场达到稳定所需的时间;但是污泥对混合填埋体的降解速率的促进作用存在一定的范围,本实验中,污泥添加量为30%的混合填埋体的降解速率最快。

关键词: 污泥, 生活垃圾, 混合填埋, 产气过程, 动力学模型

Abstract: The gas production process in sludge-municipal solid waste (MSW) mixture under different sludge addition conditions was studied through laboratory experiments, and a kinetic model of gas production process in the mixture degradation was established. Results show that the gas production process can be divided into three stages: adjustment stage, acceleration stage, and attenuation stage. With the increase in sludge amount, the cumulative gas production gradually increased, but when the sludge amount exceeded 30%, the cumulative gas production gradually decreased. With the addition of sludge, the methane production stage of the gas production process was significantly advanced, and the CH4 content in the degradation gas production increased, which shortened the time required for the landfill to stabilize. However, there is a certain range for the amount of sludge that can be added. In the experiments, the mixture with 30% sludge amount exhibited the fastest degradation rate.

Key words: sludge, municipal solid waste, mixed landfill, gas generation process, dynamic model

中图分类号: 

  • X515