纺织学报 ›› 2021, Vol. 42 ›› Issue (06): 26-34.doi: 10.13475/j.fzxb.20210205109
所属专题: 印染废水处理技术
• 纺织科技新见解学术沙龙专栏: 纤维微塑料削减与可持续发展 • 上一篇 下一篇
徐晨烨1, 顾春节1, 倪亦凡1, 沈忱思1, 王华平2, 乌婧2, 李方1()
XU Chenye1, GU Chunjie1, NI Yifan1, SHEN Chensi1, WANG Huaping2, WU Jing2, LI Fang1()
摘要:
印染废水的末端排放是自然水体中纤维微塑料的重要来源之一,为了解长三角印染行业纤维微塑料的产排特征和环境归趋,采集了22家印染企业调节池进水及末端出水样品,分析纤维微塑料的丰度、形态、聚合物类型及去除率。结果表明:纤维微塑料在进出水样品中的平均丰度为(7 504.8±5 685.9)及(1 272.7±782.2)个/L,其中聚对苯二甲酸乙二醇酯为主要贡献者,Kruskal-Wallis检验并未发现织物原材料对聚合物组成有显著影响;进水中100~300 μm和无色透明的纤维微塑料占主导,处理后出水中尺寸小于100 μm和有色纤维的比例有所上升,这与纤维微塑料的性能和末端处理截留效率有关;尽管末端处理对纤维微塑料的平均去除率可达(78.3±10.2)%,纤维微塑料通过印染末端废水的排放量为(3.88±5.75)×109个/d,由此带来的水体生态风险是持续且积累的。该研究结果可为我国纺织污染新型污染物的评估及进一步去除微塑料的工艺设计提供数据和参考。
中图分类号:
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