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摘要
通过研究自制的蛭石改性聚苯乙烯树脂,对比颗粒活性炭在反应时间、材料投加量和pH的影响下对水中甲醛,苯酚和三氯乙醛的去除效果,得出了两种材料的最佳反应条件。颗粒活性炭的最佳反应条件为:反应时间60min,最佳投加量1g/L,当溶液pH=5时,对10mg/L苯酚的去除效果最佳,去除率为28.9%,而当pH=11时,对3mg/L甲醛和2mg/L三氯乙醛的去除效果最好,去除率分别为23.8%和86.5%;蛭石改性聚苯乙烯树脂的最佳反应条件为:反应时间60min,最佳投加量1g/L,最佳反应pH=11,对3mg/L甲醛、10mg/L苯酚和2mg/L三氯乙醛的去除率分别为5.2%、22.2%和97.8%。并对两种材料去除水中混合有机物的效果进行比较研究。
Abstract
The removal efficiency of formaldehyde,phenol and Trichloroacetaldehyde in water by vermiculite modified polystyrene resin and granular activated carbon under the influence of reaction time,material dosage and pH was studied,and the optimum reaction conditions of the two materials were obtained.The optimum reaction conditions of granular activated carbon were as follows:reaction time 60min,optimum dosage 1.0g/L,removal efficiency of 10mg/L phenol was 28.9% when solution pH=5,and removal efficiency of 3mg/L formaldehyde and 2mg/L Trichloroacetaldehyde were 23.8% and 86.5% respectively when pH=11.The optimum reaction conditions of vermiculite modified polystyrene resin were as follows:reaction time 60min,optimum dosage 1g/L,optimum reaction pH=11,removal rates of formaldehyde 3mg/L,phenol 10mg/L and trichloroacetaldehyde 2mg/L were 5.2%,22.2% and 97.8%,respectively.The effects of two kinds of materials on the removal of mixed organic compounds from water were compared.
关键词
挥发性有机物
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颗粒活性炭
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聚苯乙烯树脂
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蛭石
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改性
Key words
volatile organic compound
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granular activated carbon
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polystyrene resin
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vermiculite
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modification
蛭石改性的聚苯乙烯树脂和活性炭对水中挥发性有机污染物的去除性能对比研究[J].
化工新型材料, 2020, 48(2): 185-190 DOI:
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基金资助
国家自然科学重点基金(51438006);国家自然科学基金(51979077);中央高校基本科研业务费(2019B42414);江苏省科技计划项目(BE2019121)
