Advances on waste valorization: new horizons for a more sustainable society
Advances on waste valorization: new horizons for a more sustainable society
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DOI：
10.1002/ese3.9
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发表时间：
2013-09-01
影响因子：
3.8
通讯作者：
Luque, Rafael
中科院分区：
文献类型：
--
作者：
Arancon, Rick Arneil D.;Lin, Carol Sze Ki;Luque, Rafael
针对有机废物的日益严格的法规，以及对可再生化学品和燃料的需求，正在推动制造业向更高的可持续性发展，以提高成本效益，满足客户的需求。食物垃圾价值化是近年来引起广泛关注的研究领域之一，是垃圾填埋场处理各种残留物的潜在替代方案。特别是，制定无害环境和创新的战略来处理这类废物是我们当前社会日益重要的一个领域。填埋、焚烧和堆肥是常见的、成熟的废物处理技术。然而，由于产生有毒甲烷气体和恶臭，能耗高，反应动力学慢，因此处理有机废物的效果不理想。事实上，研究工作也一直侧重于分解有机废物的新技术。然而，从分解过程中不会产生有价值的产品。最近的研究重点不是处理和分解食物垃圾，而是将其作为能源利用（例如，用于生物乙醇和生物柴油的生产）。有机废物也可用于通过生物炼制或白色生物技术（例如，琥珀酸和/或生物塑料）产生有用的有机化学品。本文旨在通过绿色生产策略的发展，总结废物增值策略在化学品、材料和燃料可持续生产方面的最新发展。它还将提供关于最近世界范围内废物管理立法的关键见解以及两个相关案例研究（将玉米芯残留物转化为功能化生物质衍生的碳质固体酸及其在菲律宾从废油生产生物柴油类生物燃料中的利用）；以及在香港发展以烘焙废物为基础的生物精炼厂，以生产琥珀酸和生物塑料)，以说明生物废物增值对更可持续发展的社会的巨大潜力。未来的研究方向和可能的可持续方法也将讨论其各自的概念证明。
Increasingly tighter regulations regarding organic waste, and the demand for renewable chemicals and fuels, are pushing the manufacturing industry toward higher sustainability to improve cost-effectiveness and meet customers' demand. Food waste valorization is one of the current research areas that has attracted a great deal of attention over the past few years as a potential alternative to the disposal of a wide range of residues in landfill sites. In particular, the development of environmentally sound and innovative strategies to process such waste is an area of increasing importance in our current society. Landfill, incineration and composting are common, mature technologies for waste disposal. However, they are not satisfactory to treating organic waste due to the generation of toxic methane gas and bad odor, high energy consumption and slow reaction kinetics. In fact, research efforts have also been oriented on novel technologies to decompose organic waste. However, no valuable product is generated from the decomposition process. Instead of disposing and decomposing food waste, recent research has focused on its utilization as energy source (e.g., for bioethanol and biodiesel production). Organic waste is also useful to generate useful organic chemicals via biorefinery or white biotechnology (e.g., succinic acid and/or bio-plastics). This article is aimed to summarize recent development of waste valorization strategies for the sustainable production of chemicals, materials, and fuels through the development of green production strategies. It will also provide key insights into recent legislation on management of waste worldwide as well as two relevant case studies (the transformation of corncob residues into functionalized biomass-derived carbonaceous solid acids and their utilization in the production of biodiesel-like biofuels from waste oils in Philippines, as well as the development of a bakery waste based biorefinery for succinic acid and bioplastic production in Hong Kong) to illustrate the enormous potential of biowaste valorization for a more sustainable society. Future research directions and possible sustainable approaches will also be discussed with their respective proofs of concept.