Development of composite geomaterials with immobilization effect of harmful substance and evaluation of recycle efficiency of wastes

有害物质固定化复合土工材料开发及废弃物资源化效率评价

• 批准号: 15560428
• 负责人: OMINE Kiyoshi
• 金额: $ 2.3万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560428/
• 关键词: Harmful substance; Immobilization effect; Waste; Composite geomaterial; Recycling efficiency; Hexagonal chromium; Cement-treated soils; Carbide

Geomaterials using waste materials have been developed in the geotechnical engineering field. It is important to clarify immobilisation effect of harmful substances and the extent of environmental load of these geomate-rials. In this study, laboratory tests for investigating the leachate and mechanical properties are carried out on four types of geomaterials with immobilisation treatments for heavy metals : cement-treated soil, baking solidification material, plastic melting solidification material and mixture with charcoal A parameter for representing recycling efficiency is proposed in consideration of the utilisation of waste and CO2 emission in the manufacturing process of the geomaterials. The recycling efficiency of composite geomaterials is calculated using MSW(Municipal Solid Waste) incineration bottom ash, and its environmental impact is evaluated.Geomaterials with various immobilisation treat-ments for heavy metals are produced and several laboratory tests have been carried out. The environ-mental impact of the geomaterials using wastes is also discussed. The following conclusions are ob-tained from this study :1)The immobilisation effects of heavy metals on the cement-treated soil, baking solidification mate-rial, plastic melting solidification material and mix-ture with charcoal are clarified by the results of the leaching test.2)Cement-treated soil and baking solidification material are effective for the immobilisation treat-ment of polluted sandy soil with heavy metals and their effect becomes much greater by mixing clay. Plastic melting solidification material and mixture with charcoal are also effective as new treatment methods.3)CO_2 emission of the geomaterials using MSW incineration bottom ash is calculated based on the concept of LCA.4)A parameter for representing recycling effi-ciency is proposed. It is confirmed that the recycling efficiency of various geomaterials can be evaluated from this calculation method.

利用废旧材料的岩土材料是岩土工程领域发展起来的一种新型岩土材料。阐明有害物质的固定化作用和这些土壤的环境负荷程度具有重要意义。在本研究中，对四种具有重金属固定处理的土工材料进行了渗滤液和力学性能的实验室测试：水泥处理土、烘烤固化材料、塑料熔融固化材料和木炭混合物。考虑到土工材料制造过程中废物的利用和二氧化碳的排放，提出了代表回收效率的参数。利用城市生活垃圾焚烧底灰计算复合土工材料的回收效率，并对其环境影响进行评价。生产了具有各种重金属固定处理的岩土材料，并进行了几次实验室测试。文中还讨论了利用废弃物进行地质材料处理对环境的影响。研究得出以下结论：1)浸出试验结果明确了重金属对水泥处理土、烘烤固化材料、塑性熔融固化材料和木炭混合料的固定作用。2)水泥处理土和烘烤固化材料对重金属污染沙土的固定化处理效果较好，掺加粘土后效果更明显。塑料熔融固化材料和木炭混合也是有效的新处理方法。3)基于lca的概念，计算了城市生活垃圾焚烧底灰土材料的CO_2排放量。4)提出了表征回收效率的参数。验证了该计算方法可用于评价各种岩土材料的回收利用效率。

项目成果

廃棄物を活用した混合地盤材料の環境負荷と再資源化効率の評価

利用废弃材料混合磨料的环境影响及回收效率评价

• 发表时间: 2005
• 期刊: 第6回環境地盤工学シンポジウム論文集
• 作者: 大嶺 聖;落合英俊
• 通讯作者: 落合英俊

Adsorptive Effect of Municipal Solid Waste Carbide for Heavy Metal Eluted from Municipal Solid Waste Incineration Ash

城市生活垃圾电石对城市生活垃圾焚烧灰析出重金属的吸附效果

• 发表时间: 2005
• 期刊: Proc.of 6h Gee-environmental Engineering Symposium, JGS (in Japanese)
• 作者: Toshimasa KURODA;Hidetoshi OCHIAI;Noriyuki YASUFUKU;Kiyoshi OMINE;Junji SASAKI;Hirotsugu NOGUCHI
• 通讯作者: Hirotsugu NOGUCHI

都市ごみ焼却灰から溶出した重金属に対する都市ごみ炭化物の吸着効果

城市垃圾炭对城市垃圾焚烧灰析出重金属的吸附效果

• 发表时间: 2005
• 期刊: 第6回環境地盤工学シンポジウム論文集 地盤工学会 (印刷中)
• 作者: 黒田俊雅;落合英俊;安福規之;大嶺 聖;佐々木潤治;野口博嗣
• 通讯作者: 野口博嗣

大嶺 聖, 松雪清人: "建設発生土および廃棄物の有効利用における環境経済評価モデル"土と基礎. 第51巻,第5号. 10-12 (2003)

Sei Omine、Kiyoto Matsuyuki：“有效利用建筑土壤和废物的环境和经济评价模型”《土壤与基础》，第 51 卷，第 5 期，10-12（2003 年）。

K.Omine: "Recycling of MSW Incineration Ash by Clay Mixing and Baking Treatment"Proc.of the 12th Asian Regional Conference, ISSMGE. Vol.1. 401-404 (2003)

K.Omine：“通过粘土混合和烘烤处理回收 MSW 焚烧灰”Proc. of the 12th Asian Regional Conference, ISSMGE。