| 摘要: |
| 于2021年对镇江市3家典型污水厂水样开展微塑料调查，采用电子显微镜和拉曼光谱仪对水样进行检测分析。结果表明：样品中检出14种微塑料，其中聚乙烯（PE）占比在40%左右，聚丙烯（PP）、聚苯乙烯（PS）、聚对苯二甲酸乙二醇酯（PET）等的占比在5%~40%，尼龙(PA)、聚碳酸酯(PC)、聚甲醛(POM)、聚甲基丙烯酸甲酯(PMMA)等占比相对较低；A厂、B厂、C厂进水中微塑料丰度分别为2 226，2 263，1 950 n/L（个/L），经过污水厂各级处理后，微塑料去除率分别为92.1%,82.5%，91.3%；微塑料主要以纤维状为主，占比均在80%左右;颗粒和不规则形状次之；微塑料颜色以彩色、透明居多，无确切规律。 |
| 关键词: 微塑料 污水处理厂 赋存特征 去除效率 |
| DOI： |
| 分类号:X703 |
| 基金项目:江苏省环境监测基金资助项目（2114） |
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| Analysis of Microplastic Occurrence in Typical Wastewater Treatment Plants |
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YIN Wei-Qing, XIE Qing-Jie, SU Jie1,2
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1.Jiangsu University, Zhenjiang，Jiangsu 212001，China;2.Zhenjiang Environmental Monitoring Center of Jiangsu Province, Zhenjiang，Jiangsu 212009，China
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| Abstract: |
| Microplastics investigation was carried out on water samples from three typical wastewater treatmenplants in Zhenjiang City in 2021, and the water samples were detected and analyzed by electron microscopy and Raman spectroscopy. The results showed that a total of 14 microplastics were detected in the samples, of which polyethylene (PE) accounted for about 40%, polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), etc. accounted for 5%~40%, and nylon (PA), polycarbonate (PC), polyformaldehyde (POM), polymethyl methacrylate (PMMA) and other plastics accounted for a relatively low percentage; the abundance of microplastics in the influent water of plants A, B and C were 2226, 2263, 1950 n/L, and the removal rate of microplastics was 92.1%, 82.5%, 91.3% respectively after treatment at all levels in the wastewater plant; microplastics were mainly fibrous, accounting for about 80%, with granules and irregular shapes second; the color of microplastics was mostly colored and transparent, with no exact rule. |
| Key words: Microplastics Wastewater Treatment Plant Occurrence characteristic Removal rate |
