Research on the Purification Efficiency of Microplastics in Drinking Water Using Household Water Purifiers
By constructing a microplastic purification efficiency testing device and using qualitative methods such as microplastic color development and infrared spectroscopy characterization,as well as quantitative methods such as particle counting,the removal efficiency of different household water purifiers on microplastics with different particle sizes in drinking water was investigated.The results show that microfiltration water purifiers(PP cotton core),ultrafiltration water purifiers,and reverse osmosis water purifiers have good removal efficiency on 13 μm microplastic,with a removal rate exceeds 99.9%;the removal efficiency of the pre filter depends on its filtration accuracy.When the particle size of microplastics is smaller than the pore size of the pre filter,the filtration effect is poor,with a removal rate of only 3.7%.Microplastic particles have no effect on the pH value and conductivity value of the water,but have a greater effect on the turbidity of the water.
water purifiermicroplasticspurification efficiency
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万方数据
