Abstract

Fast-changing fashion trends have resulted in increases in textile production and waste generation. The environmental impacts of the production, consumption and end-of-life of textiles are amply documented. Therefore, the industry has started to shift from the linear economy principle of ‘take-make-waste’ to the circular economy concept, where textiles can reenter the life cycle rather than being wasted and thus form a closed loop, resulting in resource savings and reduced environmental impacts. To this end, valorization of solid waste streams from the textile industry to recover fibers and marketable value-added products has gained increasing attention in recent years. Textile waste valorization involves three main steps: pretreatment, enzymatic hydrolysis and fiber regeneration. This review presents the main methodologies and the most recent technical developments in these valorization strategies, the value-added products obtained and their applications. Furthermore, the review describes fermentative products synthesized using cellulosic glucose from the cotton fraction of waste streams. Gaps and challenges in existing strategies are identified for potential future research. This review will help to apprize researchers and practitioners of important recent developments in effective textile valorization via upcycling and guide them in the design of efficient strategies for sustainable management of textile waste streams.

摘要

快速变化的时尚趋势导致纺织品产量和废物产生量的增加。纺织品的生产、消费和报废对环境的影响得到了充分的记录。因此，行业开始从“拿-制造-浪费”的线性经济原则转向循环经济概念，纺织品可以重新进入生命周期而不是被浪费，从而形成闭环，从而实现资源节约和减少环境影响。为此，纺织工业固体废物流的价值化以回收纤维和可销售的增值产品近年来越来越受到关注。纺织废料增值包括三个主要步骤：预处理、酶水解和纤维再生。本综述介绍了这些增值策略、获得的增值产品及其应用的主要方法和最新技术发展。此外，该综述描述了使用来自废物流的棉花部分的纤维素葡萄糖合成的发酵产品。为潜在的未来研究确定了现有战略中的差距和挑战。这篇综述将有助于让研究人员和从业者了解通过升级循环实现有效纺织品增值的重要最新进展，并指导他们设计有效的纺织品废物流可持续管理策略。该评论描述了使用来自废物流的棉花部分的纤维素葡萄糖合成的发酵产品。为潜在的未来研究确定了现有战略中的差距和挑战。这篇综述将有助于让研究人员和从业者了解通过升级循环实现有效纺织品增值的重要最新进展，并指导他们设计有效的纺织品废物流可持续管理策略。该评论描述了使用来自废物流的棉花部分的纤维素葡萄糖合成的发酵产品。为潜在的未来研究确定了现有战略中的差距和挑战。这篇综述将有助于让研究人员和从业者了解通过升级循环实现有效纺织品增值的重要最新进展，并指导他们设计有效的纺织品废物流可持续管理策略。