Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China; School of Energy and Environment, City University of Hong Kong, China.
Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
J Hazard Mater. 2022 Feb 5;423(Pt A):127023. doi: 10.1016/j.jhazmat.2021.127023. Epub 2021 Aug 25.
Due to the recent boom in urbanisation, economy, and global population, the amount of waste generated worldwide has increased tremendously. The World Bank estimates that global waste generation is expected to increase 70% by 2050. Disposal of waste is already a major concern as it poses risks to the environment, human health, and economy. To tackle this issue and maximise potential environmental, economic, and social benefits, waste valorisation - a value-adding process for waste materials - has emerged as a sustainable and efficient strategy. The major objective of waste valorisation is to transit to a circular economy and maximally alleviate hazardous impacts of waste. This review conducts bibliometric analysis to construct a co-occurrence network of research themes related to management of five major waste streams (i.e., food, agricultural, textile, plastics, and electronics). Modern valorisation technologies and their efficiencies are highlighted. Moreover, insights into improvement of waste valorisation technologies are presented in terms of sustainable environmental, social, and economic performances. This review summarises highlighting factors that impede widespread adoption of waste valorisation, such as technology lock-in, optimisation for local conditions, unfavourable regulations, and low investments, with the aim of devising solutions that explore practical, feasible, and sustainable means of waste valorisation.
由于城市化、经济和全球人口的快速增长，全球产生的垃圾量大幅增加。世界银行估计，到 2050 年，全球垃圾产生量预计将增加 70%。垃圾处理已经成为一个主要问题，因为它对环境、人类健康和经济构成了风险。为了解决这个问题并最大限度地发挥潜在的环境、经济和社会效益，废物增值——对废物材料进行增值的过程——已经成为一种可持续和有效的策略。废物增值的主要目标是向循环经济转型，并最大限度地减轻废物的危险影响。本综述通过文献计量分析构建了与管理五大主要废物流（即食品、农业、纺织、塑料和电子产品）相关的研究主题的共现网络。强调了现代增值技术及其效率。此外，还从可持续的环境、社会和经济绩效的角度介绍了改进废物增值技术的见解。本综述总结了阻碍废物增值广泛采用的突出因素，如技术锁定、针对当地条件的优化、不利的法规和低投资，并旨在制定探索实用、可行和可持续的废物增值方法的解决方案。
