海洋科学2023，Vol.47Issue(10)：43-51,9.DOI:10.11759/hykx20230302002
山东沿海不同工业废水源中微塑料的赋存特征
Characteristics of microplastic in different industrial waste-water sources along the coast of Shandong Province
摘要
Abstract
Microplastics(MPs)have attracted widespread attention as emerging and pervasive contaminants,and the scientific community is increasingly recognizing industrial sources as significant contributors to MP pollution in rivers and adjacent seas.However,the extent of this pollution in wastewater from industrial sources remains unclear.In this study,we examined MP characteristics in the influent and effluent of representative enterprises from five coastal indus-tries in Shandong Province.Our findings revealed that internal wastewater treatment systems within industrial wastewa-ter sources exhibited a relatively low removal efficiency for MPs,with an average removal rate of only 59.86%.Conse-quently,a substantial quantity of MPs was discharged from coastal industrial wastewater sources,representing a signifi-cant source of microplastic pollution in the offshore environment.Among these industries,the textile printing and dyeing sector exhibited the highest MP content in the influent and effluent,with average abundances of 84.8 and 19.6 pieces/L,respectively.The paper and plastic manufacturing plants,chemical plants,and shipbuilding industries displayed compa-rable MP abundances in wastewater,ranging from 32.0 to 37.2 pieces/L in effluent and 10.8 to 14.6 pieces/L in effluent.Gold mining plants demonstrated the lowest MP abundance,with 23.9 pieces/L in the influent and 17.6 pieces/L in the effluent.The MPs influent from various industrial sources exhibited similar shapes and compositions,characterized by fibers(comprising 61.46%-84.48%)and demonstrated by polyethylene(PE)(constituting 53.48%-76.19%).In industrial source effluents,MPs predominantly took the form of fibers(61.46%-91.06%),were primarily blue(41.67%-58.22%),and were composed mainly of PE(16.22%-67.83%).Moreover,we observed industry-specific variations in MP size within the effluent,where the highest average proportion of MPs≤300 μm reached 28.67%,spanning from 23.96%to 35.19%.The characteristics of MPs in industrial effluents closely resemble those found in the ocean,underscoring the significant contribution of industrial discharges to marine MP pollution.This study provides a scientific foundation for researching source-sink dynamics,migration patterns,and strategies for preventing and controlling marine MPs by elu-cidating MP concentrations and traits in industrial effluents across representative industries near typical bays.关键词
山东沿海/微塑料/工业废水/赋存特征Key words
coastal of Shandong/microplastics/industrial wastewater/characteristic分类
资源环境引用本文复制引用
李晓亚,刘娟,郑珊,梁俊华,朱明亮,李庆洁,孙晓霞..山东沿海不同工业废水源中微塑料的赋存特征[J].海洋科学,2023,47(10):43-51,9.基金项目
国家自然科学基金委员会联合基金重点支持项目(U2006206) （U2006206）
中国科学院国际合作伙伴计划对外合作重点项目(133137KYSB20200002) （133137KYSB20200002）
国家自然科学基金委员会项目(42006118) （42006118）
中国科学院国际大科学计划培育项目(121311KYSB20190029) （121311KYSB20190029）
中国科学院战略性先导科技专项(A 类)子课题(XDA23050303)The National Natural Science Foundation of China,No.U2006206 （A 类）
The International Science Partnership Program of the Chinese Academy of Sci-ences,No.133137KYSB20200002 （）
The National Natural Science Foundation of China,No.42006118 （）
The International Science Partnership Program of the Chinese Academy of Sciences,No.121311KYSB20190029 （）
The Strategic Prior-ity Research Program of the Chinese Academy of Sciences,No.XDA23050303 （）
