典型污水处理厂微塑料赋存特征研究

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...

Analysis of Microplastic Occurrence in Typical Wastewater Treatment Plants

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.