Ecology and Environment ›› 2023, Vol. 32 ›› Issue (12): 2128-2140.DOI: 10.16258/j.cnki.1674-5906.2023.12.005

• Papers on “New Pollutants” • Previous Articles     Next Articles

Environmental Health Risks and Resource Utilization of Emerging Contaminants in Toner Waste

LIU Ning1(), KONG Yu1, REN Chunting1, PAN Chao1, LI Xiaona1,2,*(), WANG Zhenyu1,2   

  1. 1. Research Center of Low-carbon Technology and Sustainable Development/School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, P. R. China
    2. Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology/Jiangnan University, Wuxi 214122, P. R. China
  • Received:2023-06-11 Online:2023-12-18 Published:2024-02-05
  • Contact: LI Xiaona

废碳粉中新污染物的环境健康风险与资源化利用

刘宁1(), 孔宇1, 任春廷1, 潘超1, 李晓娜1,2,*(), 王震宇1,2   

  1. 1.江南大学环境与土木工程学院/绿色低碳技术与可持续发展研究中心,江苏 无锡 214122
    2.江南大学/生物质能源与减排技术江苏省工程实验室,江苏 无锡 214122
  • 通讯作者: 李晓娜
  • 作者简介:刘宁(1995年生),女,博士研究生,主要从事新污染物的环境健康研究。E-mail: liuningchn@126.com
  • 基金资助:
    国家自然科学基金委重大项目(42192572);国家自然科学基金委青年基金项目(42107244);江苏省自然科学基金青年基金项目(BK20210486)

Abstract:

With the rapid growth of the printing industry, toner production has increased, resulting in a significant amount of toner waste in the environment. At present, toner waste disposal primarily involves landfills, leading to accumulation and exposure risks to the environment. Various emerging contaminants such as micro- or nanoplastics, nano oxides, and nano carbon pose potential ecological and human health risks. To control the environmental health risk associated with emerging contaminants in toner waste, it is critical to scientifically dispose of and utilize toner waste. This review explores the single and compound ecological effects of various typical emerging particulate contaminants and their interactions with soil, water and other media in the environment. It also proposes toxic risks associated with toner waste. Toner waste may expose humans to toxicity through respiration, skin contact and food chain transmission. It may cause toxicity to the respiratory system, kidney, liver, intestinal metabolism, neurodevelopment, cardio metabolism, blood vessels, and reproduction. The toxicity depends on the size, dose, and exposure time of particulate contaminants. In addition, potential recycling and resource utilization technologies for toner wastes have been proposed based on their composition and properties. The review recommends strengthening research on biogeochemical processes, environmental health risks, and resource utilization of waste toner in the future. Specific areas of study include: 1) develop advanced pre-processing methods for the qualitative and quantitative analysis of toner waste in the environment, clarifying its environmental exposure flux and occurrence; 2) investigate the ecological, human health effects and risk assessment of toner wastes with environmental relevant concentrations based on laboratory batch experiments, mesocosmic systems, and machine learning; 3) strengthen the innovation of recycling and resource utilization technologies for toner waste and develop a whole life toner risk assessment and cycle system. Moreover, the establishment of relevant environmental management policies is crucial to ensure the scientific control of toner waste. This review provides a theoretical basis for effectively controlling the environmental health risks associated with emerging contaminants in toner waste. It also lays a technical foundation for promoting the efficient utilization of toner waste resources and the green development of the printing industry.

Key words: emerging contaminants, toner waste, environmental effects, human health, recycling, resource utilization

摘要:

随着印刷业的快速发展,碳粉的产量不断增加,致使废碳粉排放量升高。目前,国际上对废碳粉的处置以直接填埋为主,在环境中持续累积且具有暴露风险。废碳粉中含有微纳米塑料、纳米氧化物、纳米炭等多种新污染物,存在潜在生态环境和人体健康风险。如何科学处置废碳粉,实现其资源化利用是管控废碳粉中新污染物环境健康风险的关键。该综述首先探讨了多种典型颗粒新污染物的单独和复合生态效应以及其与环境中土壤、水体等介质的相互作用,提出废碳粉可能具备生物毒性和生态风险。废碳粉可通过呼吸、接触及食物链传递等途径造成人体暴露,可能会对人体呼吸系统、肾脏、肝脏、肠道代谢、神经发育、心脏代谢、血管、生殖等产生毒性,其毒性具有尺寸、剂量和暴露时间依赖性。依据废碳粉的成分组成和性能分析归纳总结了其可能的回收和高值化利用技术,并对未来废碳粉的环境地球化学过程、环境健康和资源化利用等方面研究进行了展望,包括:1)发展环境中废碳粉的分离提取与检测定量技术,明确废碳粉的环境赋存量和赋存形态;2)结合实验室和中宇宙模拟与机器学习来探究环境相关浓度下废碳粉的生态和人体健康效应,并实现其风险评估;3)加强废碳粉回收和资源化利用的技术的创新,发展碳粉全生命周期的安全性评估体系,建立健全规范废碳粉处置的相关环境管理政策法规。该文旨在为有效控制废碳粉中新污染物的环境健康风险提供理论依据,为促进废碳粉资源高效利用与印刷业绿色发展奠定技术基础。

关键词: 新污染物, 废碳粉, 环境效应, 人体健康, 回收, 资源化利用

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