聚合硫酸铁去除水体微塑料颗粒的研究  

Study on Removal of Microplastic Particles from Waters by PFS

作　　者：谢锟 虢清伟 张伟[3] 陈思莉 熊正为[1] Xie Kun;Guo Qingwei;Zhang Wei;Chen Sili;Xiong Zhengwei(University of South China,Hengyang 421001;South China Institute of Environmental Science,MEE,Guangzhou 510700;Hu’nan City University,Yiyang 413000,China)

机构地区：[1]南华大学,湖南衡阳421001 [2]生态环境部华南环境科学研究所,广东广州510700 [3]湖南城市学院,湖南益阳413000

出　　处：《广东化工》2021年第7期92-95,共4页Guangdong Chemical Industry

摘　　要：聚乙烯(PE)、聚丙烯(PP)、聚苯乙烯(PS)、和聚氯乙烯(PVC)、聚对苯二甲酸乙二醇酯(PET)是水体微塑料污染常见的塑料,关于水体微塑料颗粒的去除的研究依然有限。本实验通过聚合硫酸铁(PFS)去除水环境中上述五种微塑料。结果表明PFS对五种微塑料的去除受pH、PFS投加量、水体中无机离子浓度较大影响。PFS对五种微塑料(50 mg/L)的最佳去除条件为pH为5.0、PFS投加浓度为0.5 g/L。通过环境水体实验,PFS对PE、PP、PS、PVC、PET在海水中去除率分别为95.56%、99.07%、94.44%、99.38%、98.33%,河水89.52%、95.95、84.44%、95.95%、87.84%,湖水88.07%、90.51%、82.75%、93.79%、85.00%,整体去除率表现为为海水>河水>湖水。Polyethylene(PE), polypropylene(PP), polystyrene(PS), and polyvinyl chloride(PVC), polyethylene terephthalate(PET) are common plastic microplastic pollution in water, However, research on the removal of microplastics particles in water is still limited. In this experiment. Polymeric Ferric Sulfate(PFS)was used to remove the above five kinds of microplastics in water. The results showed that the removal of five kinds of microplastics by PFS was greatly affected by pH, the dosage of PFS and the concentration of inorganic ions in water. The optimal removal conditions of five kinds of microplastics(50 mg/L) by PFS were pH 5.0 and PFS dosage 0.5 g/L. Through environmental waters, the removal rates of PE, PP, PS, PVC and PET by PFS in seawater were 95.56 %, 99.07 %, 94.44 %,99.38 %, 98.33 %, respectively;in river water, 89.52 %, 95.95, 84.44 %, 95.95 %, 87.84 %;and in lake water, 88.07 %, 90.51 %, 82.75 %, 93.79 %, 85.00 %. The overall removal rates were seawater>river water>lake water.

关 键 词：微塑料 聚合硫酸铁 去除率 

分 类 号：TQ[化学工程]