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首页> 外文期刊>International Journal of Polymer Science >Utilization of Waste Clay from Boron Production in Bituminous Geosynthetic Barrier (GBR-B) Production as Landfill Liner
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Utilization of Waste Clay from Boron Production in Bituminous Geosynthetic Barrier (GBR-B) Production as Landfill Liner

机译：将硼生产中的废粘土用作沥青土工合成屏障（GBR-B）的垃圾填埋衬垫

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摘要

Bituminous geomembranes, one type of geosynthetics, include a hot bituminous mixture with mineral filler and reinforcement. In this study, boron production waste clay (CW) was used as filler to produce a geosynthetic barrier with bentonite, waste tire, and bitumen. Bentonite and waste tires were used as auxiliary fillers and bitumen as the binder. CW/bitumen, CW/bentonite/bitumen, and CW/waste tire/bitumen mixtures were prepared by using a laboratory mixer at 100°C. Hot mixtures were extruded into strips by using a lab-scale corotating twin screw extruder (L/D: 40) followed by die casting (2 mm x 100 mm). Glass fleece or nonwoven polyester was used as reinforcement material and while die casting, both sides of the reinforcement materials were covered with bituminous mixture. Thickness, mass per unit area, tensile strength, elongation at yield, and hydraulic conductivity were used to characterize the geomembranes. Among all geomembranes, nonwoven polyester covered with 30% bitumen-70% boron waste clay mixture (PK-BTM30CW70) was found to be the most promising in terms of structure and mechanical behaviour. After that, consequences of its exposure to distilled water (DW), municipal solid waste landfill leachate (L-MSW), and hazardous waste landfill leachate (L-HW) were examined to use for an innovative impermeable liner on solid waste landfills.
机译：沥青土工膜是一种土工合成材料，包括带有矿物填料和增强材料的热沥青混合物。在这项研究中，将硼生产废粘土（CW）用作填料，以与膨润土，废轮胎和沥青一起生产土工合成材料屏障。膨润土和废轮胎用作辅助填料，沥青用作粘结剂。通过使用实验室混合器在100°C下制备CW /沥青，CW /膨润土/沥青和CW /废轮胎/沥青混合物。通过使用实验室规模的同向双螺杆挤出机（L / D：40）将热混合物挤出成条带，然后进行压铸（2 mm x 100 mm）。使用玻璃纤维绒或非织造聚酯作为增强材料，压铸时，增强材料的两面都覆盖有沥青混合物。厚度，每单位面积的质量，抗张强度，屈服伸长率和水力传导率用于表征土工膜。在所有土工膜中，就结构和机械性能而言，覆盖有30％沥青-70％硼废粘土混合物（PK-BTM30CW70）的非织造聚酯是最有前途的。之后，研究了其暴露于蒸馏水（DW），城市固体废物垃圾填埋场渗滤液（L-MSW）和危险废物垃圾填埋场渗滤液（L-HW）的后果，以用于固体垃圾填埋场的创新防渗衬垫。

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