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Bio-composite materials potential in enhancing sustainable construction

机译:生物复合材料在加强可持续建筑方面的潜力

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According to the sustainability principles, building should have zero-embodied energy in order to minimize the amount of carbon. In previous practices, construction materials have been composed with non-recyclable materials and after demolition of buildings the debris were put on different landfills. Nowadays, most of the material manufacturers have shifted their concerns to produce materials by using renewable resources, and also gained opportunity in utilizing wasted streams. The proposed biomaterials have been produced using natural fibers which reinforce biodegradable polymeric, in which naturally occurring aliphatic thermoplastic polyesters are produced by microbes via bacterial fermentation in carbon-rich environments. The composite material produced exhibits comparable properties to structural grade wood and is rapidly biodegradable in specific anaerobic conditions, at the end of its useful life. Using anaerobic digester sludge from local wastewater treatment plants as the biodegradation medium, the material decomposes into biogas that consists mostly of inert gases and, of particular interest, methane, which can be captured and used either as a biofuel or as a closed-loop carbon source. This paper documents bio-based composite material development, durability issues, anaerobic biodegradation, and potential industrial applications.
机译:根据可持续性原则,建筑物应具有零实施能量,以最大程度减少碳含量。在以前的实践中,建筑材料是由不可回收材料组成的,建筑物拆除后,碎屑被放置在不同的垃圾填埋场。如今,大多数材料制造商已将其关注点转移到通过使用可再生资源生产材料上,并且也获得了利用浪费物流的机会。所提出的生物材料已经使用增强生物可降解聚合物的天然纤维生产,其中天然存在的脂肪族热塑性聚酯是通过微生物在富含碳的环境中通过细菌发酵生产的。所生产的复合材料具有可与结构级木材相媲美的性能,并且在特定的厌氧条件下,在使用寿命到期时可以快速生物降解。使用当地废水处理厂的厌氧消化污泥作为生物降解介质,该物质分解为沼气,其中的沼气主要由惰性气体和甲烷引起,这些沼气可以被捕获并用作生物燃料或闭环碳。资源。本文介绍了生物基复合材料的开发,耐久性问题,厌氧生物降解以及潜在的工业应用。

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