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进口再生塑料颗粒中特征污染物的筛选及污染特征研究

白月娇 林晔 岳波 孟棒棒 张颖 王超

白月娇,林晔,岳波,等.进口再生塑料颗粒中特征污染物的筛选及污染特征研究[J].环境工程技术学报,2024,14(3):769-777 doi: 10.12153/j.issn.1674-991X.20230591
引用本文: 白月娇,林晔,岳波,等.进口再生塑料颗粒中特征污染物的筛选及污染特征研究[J].环境工程技术学报,2024,14(3):769-777 doi: 10.12153/j.issn.1674-991X.20230591
BAI Y J,LIN Y,YUE B,et al.Study on screening of characteristic pollutants and pollution characteristics in imported regenerated plastic particles[J].Journal of Environmental Engineering Technology,2024,14(3):769-777 doi: 10.12153/j.issn.1674-991X.20230591
Citation: BAI Y J,LIN Y,YUE B,et al.Study on screening of characteristic pollutants and pollution characteristics in imported regenerated plastic particles[J].Journal of Environmental Engineering Technology,2024,14(3):769-777 doi: 10.12153/j.issn.1674-991X.20230591

进口再生塑料颗粒中特征污染物的筛选及污染特征研究

doi: 10.12153/j.issn.1674-991X.20230591
基金项目: 国家重点研发计划项目(2019YFC1904802)
详细信息
    作者简介:

    白月娇(1998—),女,硕士研究生,主要从事固体废物污染防治研究,1419963055@qq.com

    通讯作者:

    岳波(1980—),男,研究员,博士,主要从事固体废物污染防治研究,yuebo@craes.org.cn

  • 中图分类号: X705

Study on screening of characteristic pollutants and pollution characteristics in imported regenerated plastic particles

  • 摘要:

    为了掌握进口再生塑料颗粒中污染物的污染特性,选取5种不同类型的进口再生塑料颗粒,基于来源及再生利用过程分析其可能含有的污染物类型,筛选出重金属、双酚类化合物〔包括四溴双酚A(BPA)与四溴双酚S(BPS)〕和挥发性有机物(VOCs)3种特征污染物进行污染特征分析。结果发现,5种再生塑料颗粒中检测出6种重金属,包括Cr、Mn、Pb、Cd、Cu、Hg,其中Cr、Mn、Pb的浓度相对较高;5种再生塑料颗粒中BPS的检出率达100%,BPA的检出率为20%~100%,且BPS浓度大于BPA,这可能与实际生产中使用BPS等代替BPA有关;5种再生塑料颗粒中检测出的VOCs中,除二氯甲烷外均为苯的同系物。研究结果可为塑料颗粒后续的再生利用提供基础数据支持,并有助于相关部门进一步规范进口再生塑料颗粒的管控。

     

  • 图  1  再生塑料颗粒中不同重金属浓度

    Figure  1.  Diagram of different heavy metal content in recycled plastic particles

    图  2  5种再生塑料颗粒中BPA、BPS平均浓度

    Figure  2.  Average content diagram of BPA and BPS in 5 kinds of recycled plastic particles

    图  3  5种再生塑料颗粒中VOCs平均浓度

    Figure  3.  Average content diagram of VOCs in 5 kinds of recycled plastic particles

    图  4  5种再生塑料颗粒中VOCs综合毒性占比

    Figure  4.  Toxicity ratio diagram of VOCs in 5 kinds of recycled plastic particles

    表  1  进口再生塑料颗粒基本情况

    Table  1.   Basic information of imported recycled plastic particles

    类型英文学名中文学名推荐用途使用特性外观颜色
    PEpolyethylene聚乙烯管材、发泡、注塑、包装膜、方便袋等通用塑料黑、灰、米白、乳白
    PPpolypropylene聚丙烯卡板、挡泥板、保险杠、拉丝、丙纶纱、
    编制包装、桌椅、吹瓶等
    通用塑料黑、灰、绿、白、灰、浅灰
    PSpolystyrene聚苯乙烯发泡、管道、护栏等通用塑料黑、绿、浅绿、浅红、浅茶、白
    PETpolyethylene-terephthalate聚对苯二甲酸乙二醇酯填充物、化纤、纺丝、纤维、吸塑等工程塑料白、蓝、绿、透明
    ABSacrylonitrile-butadiene-
    styrene copolymers
    丙烯腈-丁二烯-苯乙烯共聚合物游戏机外壳、空调、冰箱通用塑料黑、灰、白
    下载: 导出CSV

    表  2  高效液相色谱测定条件

    Table  2.   Determination conditions of high-performance liquid chromatography

    色谱柱 柱长/mm 内径/mm 粒度/μm 柱温 流动相体积比 流速/(mL/min) 可变波长扫描紫外检测器/nm
    C18 250 4.6 5 室温 甲醇∶水为60∶40 1 224
    下载: 导出CSV

    表  3  再生塑料颗粒中BPA和BPS检出率

    Table  3.   Detection rate of BPA and BPS in recycled plastic particles % 

    化合物 PE PP PS PET ABS
    BPA 70 80 75 20 100
    BPS 100 100 100 100 100
    下载: 导出CSV

    表  4  VOCs毒性指标LD50

    Table  4.   Toxicity index LD50 of VOCs

    序号 CAS编号 中文名 英文名 分子式 LD50/(mg/kg)
    1 75-09-2 二氯甲烷 methylene dichloride CH2Cl2 2 080
    2 108-88-3 甲苯 toluene C7H8 7 530
    3 100-41-4 乙基苯 ethylbenzene C8H10 3 500
    4 106-42-3 对二甲苯 p-xylene C8H10 5 000
    5 100-42-5 苯乙烯 styrene C8H8 1 000
    6 95-47-6 邻二甲苯 o-xylene C8H10 6 125
    7 622-96-8 对甲乙苯 4-ethyltoluene C9H12 4 850
    8 95-63-6 1,2,4-三甲基苯 1,2,4-trimethylbenzene C9H12 1 760
    9 103-65-1 正丙苯 n-propylbenzene C9H12 6 040
    10 620-14-4 间甲乙苯 3-ethyltoluene C9H12
    11 611-14-3 邻甲乙苯 2-ethyltoluene C9H12 5 000
    12 526-73-8 联三甲苯 1,2,3-trimethylbenzene C9H12 5 000
    13 141-93-5 1,3-二乙基苯 diethylbenzene C10H14 1 200
    14 105-05-5 1,4-二乙基苯 p-diethylbenzene C10H14 1 200
      注:LD50指在一定时间内经口或经皮给予受试样品后,受试动物发生死亡概率是50%的剂量。
    下载: 导出CSV
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  • 收稿日期:  2023-08-12
  • 录用日期:  2023-12-21
  • 修回日期:  2023-09-15

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