摘要
试验研究反渗透(RO)处理污染水体过程中PAHs质量浓度的变化。在试验的第一阶段,将污染水体在沙床上进行过滤(预过滤),在预过滤之后,将它们导向膜组件进行主过滤。分析了EPA列出的16种PAHs。在预过滤后以及RO处理后,观察到样品中PAHs质量浓度的降低。污染水体中16种PAHs的总质量浓度为24.77-27.58μg·L^(-1)。研究证实,在使用反渗透时,PAHs的去除效率很高(60%-66%)。包括预过滤在内,PAHs的总去除率达到83%-85%,预过滤和RO处理后的PAHs平均质量浓度在4.19-4.32μg·L^(-1)范围内。
The change of PAHs mass concentration in the process of reverse osmosis(RO) treatment of polluted water was studied. In the first phase of the test, the polluted water was filtered(pre-filtered) on the sand bed. After pre-filtration, they were directed to the membrane module for main filtration. The 16 PAHs listed by the EPA were analyzed. After pre-filtration and after RO treatment, a decrease in the mass concentration of PAHs in the sample was observed. The total mass concentration of 16 PAHs in polluted water was 24.77-27.58 μg·L^(-1). Studies have confirmed that while using reverse osmosis, PAHs removal efficiency was very high(60%-66%). Including pre-filtration, the total removal rate of PAHs reached 83%-85%. The average mass concentration of PAHs after pre-filtration and RO treatment was in the range of 4.19-4.32 μg·L^(-1).
作者
郭栓
赵广韬
GUO Shuan;ZHAO Guang-tao(School of Chemistry and Chemical Engineering,Yan'an University,Yan'an 716000,China;Xinjiang Xuanli Environmental Protection Energy Co.,Ltd.,Hami 839000,China)
出处
《当代化工》
CAS
2021年第2期298-301,共4页
Contemporary Chemical Industry
基金
2019年十三师财政科技计划(项目编号:SSCZ2019-06)。
