Abstract:To evaluate the environmental safety issues in the use of non-metallic recycled products from waste circuit boards, an environmental safety assessment model of recycled wood-plastic products was constructed with reference to the characteristics of recycled wood-plastic products, the environmental hazard evaluation methods, and human health risk evaluation. Also, two kinds of recycled products were collected for the evaluation test, using the model to evaluate whether there were potential risks and hazards to the environment and human health. The results showed that both the two types of recycled products might cause extreme or severe pollution to the surface water of class I. For other types of surface water, the environmental risk is low, and the recycled products should be avoided when used in the primary area of the source water. For groundwater, the pollution index of product B is greater than 1, which has a certain environmental risk; When considering dilution effects (5% of the original concentration), the pollution indexes of two recycled products for groundwater are less than 1. The hazard indexes of two kinds of recycled products are 0.03 and 0.41respectively, both of which are less than 1, with no obvious harm to human health. The evaluation model provides evaluation criteria and references for large-scale production and promotion of non-metallic material recycling. Further, it promotes the development of waste electrical and electronic products recycling and harmless technology.
梁扬扬, 宋庆彬, 董庆银, 李金惠. 废电路板非金属材料再生木塑产品环境安全性评价[J]. 中国环境科学, 2020, 40(12): 5502-5510.
LIANG Yang-yang, SONG Qing-bin, DONG Qing-yin, LI Jin-hui. Environmental safety assessment of the recycled wood-plastic products with the non-metallic materials from waste printed circuit board. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(12): 5502-5510.
Kumar A, Holuszko M E, Janke T. Characterization of the non-metal fraction of the processed waste printed circuit boards[J]. Waste Management, 2018,75:94-102.
[2]
Sohaili J M S K M. A review on printed circuit boards waste recycling technologies and reuse of recovered nonmetallic materials[J]. International Journal of Scientific and Engineering Research, 2012, 2(3):1-7.
[3]
Verma H R, Singh K K, Mankhand T R. Dissolution and separation of brominated epoxy resin of waste printed circuit boards by using di-methyl formamide[J]. Journal of Cleaner Production, 2016,139:586-596.
[4]
Zhu P, Chen Y, Wang L, et al. Dissolution of brominated epoxy resins by dimethyl sulfoxide to separate waste printed circuit boards[J]. Environmental Science & Technology, 2013,47(6):2654-2660.
[5]
Zheng Y, Shen Z, Cai C, et al. The reuse of nonmetals recycled from waste printed circuit boards as reinforcing fillers in the polypropylene composites[J]. Journal of Hazardous Materials, 2009,163(2/3):600-606.
[6]
Marques A C, Cabrera M J, de Fraga M C. A review of the recycling of non-metallic fractions of printed circuit boards[J]. Springerplus, 2013,2:521.
[7]
Muniyandi S K, Sohaili J, Hassan A, et al. Converting non-metallic printed circuit boards waste into a value added product[J]. Journal of Environmental Health Science & Engineering, 2013,11:2.
[8]
Duan H, Hu J, Yuan W, et al. Characterizing the environmental implications of the recycling of non-metallic fractions from waste printed circuit boards[J]. Journal of Cleaner Production, 2016,137:546-554.
[9]
Sepúlveda A, Schluep M, Renaud F G, et al. A review of the environmental fate and effects of hazardous substances released from electrical and electronic equipments during recycling:Examples from China and India[J]. Environmental Impact Assessment Review, 2010, 30(1):28-41.
[10]
Guo J, Lin K, Xu Z. Curing kinetic analysis of phenolic resin filled with nonmetallic materials reclaimed from waste printed circuit boards[J]. Thermochimica Acta, 2013,556:13-17.
[11]
Guo J, Li J, Rao Q, et al. Phenolic molding compound filled with nonmetals of waste PCBs[J]. Environmental Science & Technology, 2008,42(2):624-628.
[12]
Guo J, Rao Q, Xu Z. Application of glass-nonmetals of waste printed circuit boards to produce phenolic moulding compound[J]. Journal of Hazardous Materials, 2008,153(1/2):728-734.
[13]
Guo J, Tang Y, Xu Z. Performance and thermal behavior of wood plastic composite produced by nonmetals of pulverized waste printed circuit boards[J]. Journal of Hazardous Materials, 2010,179(1-3):203-207.
[14]
Hadi P, Gao P, Barford J P, et al. Novel application of the nonmetallic fraction of the recycled printed circuit boards as a toxic heavy metal adsorbent[J]. Journal of Hazardous Materials, 2013,252-253:166-170.
[15]
Ke Y, Yang E, Liu X, et al. Preparation of porous carbons from non-metallic fractions of waste printed circuit boards by chemical and physical activation[J]. New Carbon Materials, 2013,28(2):108-113.
[16]
Bazargan A, Bwegendaho D, Barford J, et al. Printed circuit board waste as a source for high purity porous silica[J]. Separation and Purification Technology, 2014,136:88-93.
[17]
邵先涛.电路板中非金属物质制备活性炭的可行性研究[D]. 上海:东华大学, 2014. Shao X T. Feasibilyty study of activated carbon prepared by nonmetallic substances of circuit board[D]. Shanghai:Donghua University, 2014.
[18]
只艳.废电路板非金属材料深度资源化利用技术研究[D]. 北京:清华大学, 2014. Zhi Y. Research on the deep reclamation of nonmetallic material from waste printed circuit board[D]. Beijing:Tsinghua University, 2014.
[19]
蒋英.废弃电路板中非金属粉再利用的环境风险评价[D]. 上海:上海交通大学, 2011. Jiang Y. Assessment on the environment risk of the recycling of nonmetallic materials from waste printed circuit boards[D]. Shanghai:Shanghai Jiao Tong University, 2011.
[20]
Marinković S, Radonjanin V, Malešev M, et al. Comparative environmental assessment of natural and recycled aggregate concrete[J]. Waste Management, 2010,30(11):2255-2264.
GB 50325-2020民用建筑工程室内环境污染控制标准[S]. GB 50325-2020 Code for indoor environmental pollution control of civil building engineering[S].
[24]
GB 18580-2017室内装饰装修材料人造板及其制品中甲醛释放限量[S]. GB 18580-2017 Indoor decorating and refurbishing materials-Limit of formaldehyde emission of wood-based panels and finishing products[S].
Netherlands normalization institute standard. EA NEN 7375:2004, Leaching characteristics:determination of leaching of inorganic components with the diffusion test[S].
[27]
生态环境部. 2019年全国生态环境质量简况[EB/OL]. http://www. mee.gov.cn/xxgk2018/xxgk/xxgk15/202005/t20200507_777895.html 2020-10-15. Ministry of Ecology and Environment the People's Republic of China. Brief introduction of national ecological environment quality in 2019[EB/OL] http://www.mee.gov.cn/xxgk2018/xxgk/xxgk15/202005/t20200507_777895.html 2020-10-15.
[28]
黄启飞.固体废物资源化环境安全评价技术研究[M]. 北京:中国环境科学出版社, 2012. Huang Q F. Research of environmental safety evaluation on solid waste resource[M]. Beijing:China Environmental Science Press, 2012.
[29]
周啸宇.印刷电路板生产、回收拆解及废弃堆置过程中重金属与溴系阻燃剂的污染、释放规律及人体暴露研究[D]. 上海:华东理工大学, 2014. Zhou X Y. Occurrence and emission of heavy metals and brominated flame retardants in printed circuit board production, recycling and disposal processes and human exposure assessment[D]. Shanghai:East China University of Science and Technology, 2014.
[30]
GB/T 18883-2002室内空气质量标准[S]. GB/T 18883-2002 Indoor air quality standard[S].
[31]
孙志林,杜利华,龚玉萌,等.长江口和杭州湾污染物稀释扩散及交汇数值模拟研究[J]. 海洋工程, 2019,37(2):68-75. Sun Z L, Du L H, Gong Y M, et al. Numerical simulation of contaminant dilution and diffusion and convergence in Yangtze River estuary and Hangzhou Bay[J]. The Ocean Engineering, 2019,37(2):68-75.
[32]
GB3838-2002地表水环境质量标准[S]. GB3838-2002 Environmental quality standards for surface water[S].
[33]
GB/T 14848-2017地下水质量标准[S]. GB/T 14848-2017 Quality standard for ground water[S].
[34]
高翠玲,赵继峰,刘萌萌,等.板材家具VOCs溯源分析及健康风险评价[J]. 生态环境学报, 2020,29(2):319-327. Gao C L, Zhao J F, Liu M M, et al. Source analysis and health risk assessment of VOCs in panel-type furniture[J]. Ecology and Environmental Sciences, 2020,29(2):319-327.
[35]
United States Environmental Protection Agency., IRIS assessments.[EB/OL]. https://cfpub.epa.gov/ncea/iris_drafts/atoz.cfm?list_type=alpha 2020-07-24.