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Construction technologies and management in the post-closure redevelopment of waste landfill

垃圾填埋场关闭后重建的施工技术与管理

基本信息

批准号：
17206051
负责人：
KAMON Masashi
金额：
$ 30.37万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17206051/
关键词：
Fate and transport of contaminants Eco-friendly Infrastructure design Waste treatment Prevention of soil groundwater contamination Heavy metal Waste landfill Post-closure redevelopment Environmental risk

项目摘要

The main objective of this research is to develop the construction technologies which can effectively control the geotechnical and environment risks in the post-closure redevelopment of waste landfill. The main results obtained in this study can be summarized as follows:1. Fate and transport of pollutants due to the waste disposal were analyzed by the laboratory experiments. Heavy metals and volatile organic compounds (particularly Dense Non-Aqueous Phase Liquids) are of main concern in this research. Particularly, heavy metal mobility in the coastal incinerator ash landfill was studied by analyzing the effects of chemical conditions and microbial activities with the model test. Mobility of heavy metals is significantly reduced under the typical reduced-alkaline condition, since the reducible fraction is affected and the oxidizable fraction is favored.2. Long-term performance of the engineered liner system in the waste landfill was evaluated through a series of laboratory experiments. The main concerns are 1) interface transmissivity between clay layer and steel pile installed at coastal landfill sites as the basement structure in the post-closure redevelopment, 2) hydraulic barrier performance of the liner exposed to the chemicals in the leachate and the high temperature, and 3) application of steel piles to the vertical cut-off wall in the coastal landfill.3. Construction technologies to control the environmental risks in the post-closure redevelopment of waste landfill were developed, such as the application of the soil-bentonite mixture to the vertical cut-off wall and the structural design of the engineered landfill line with the high stability. The scheme for proper waste management, including the geotechnical utilization of waste materials and the redevelopment of closed landfill, is proposed and discussed based on the achievements of this study.

本研究的主要目的是开发能够有效控制垃圾填埋场封闭后再开发过程中的岩土和环境风险的施工技术。主要研究成果如下：1.通过室内实验分析了垃圾处理过程中污染物的去向和迁移规律。重金属和挥发性有机化合物(特别是稠密的非水相液体)是本研究的主要关注对象。通过模型试验分析了化学条件和微生物活动对垃圾填埋场重金属迁移的影响，研究了垃圾填埋场中重金属的迁移规律。在典型的还原-碱性条件下，重金属的迁移性显著降低，因为可还原部分受到影响，而可氧化部分是有利的。通过一系列的实验室试验，对工程衬砌系统在垃圾填埋场的长期性能进行了评估。主要关注的问题有：1)填埋场填埋场上安装的钢桩与粘土层之间的界面导流率，作为封场后再开发的基础结构；2)渗滤液中的化学物质和高温对衬砌的水力屏障性能；3)钢桩在滨海垃圾填埋场垂直防渗墙中的应用。提出了垃圾填埋场封场后再开发中控制环境风险的施工技术，如在垂直防渗墙中应用土-膨润土混合物，以及高稳定性工程填埋线的结构设计。在研究成果的基础上，提出了垃圾的合理管理方案，包括垃圾的岩土工程利用和封闭式垃圾填埋场的再开发。

项目成果

期刊论文数量（162）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Geosynthetic barriers for environmental protection at landfills

垃圾填埋场环保土工合成材料屏障

DOI：
发表时间：
2006
期刊：
Geosynthetics(Proceedings of the 8th International Conference on Geosynthetics) Vol.1
影响因子：
0
作者：
Kavazanjian;E.;Jr.;Dixon;N.;Katsumi;T.;Kortegast;A.;Legg;P.;and Zanzinger;H.
通讯作者：
H.

焼却灰を埋め立てた海面処分場の重金属の安定性に関する実験的研究

海平面焚烧灰处置场重金属稳定性实验研究