Hytoremediation of organic pollutants and heavy metals co-existed in water body
TAN Xiao1,2, LONG Ying-xian1, YE Jin-shao2, CAI Bin1,2, LIU Fang-wan1
1. South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China; 2. Department of Environmental Engineering, Jinan University, Guangzhou 510632, China
Four species of plants,including Alocasia macrorrhiza,Syngonium podophyllum,Hymenocallis speciosa and Mariscus compactus,showing the ability in degradation of organic carbon,removal nitrogen and phosphorus,and accumulation heavy metals were selected and cultivated.Batch tests were carried out to study the removal potential of organic pollutants and heavy metals by these plants.The results indicated that they could improve the removal effeciency.After treating 10 liters of solutions by 55 to 60 grams of plants for 14 days,the removal effeciency exceeded 80%,72%,64%,53%,75%and 68%when the initial concentrations of BOD5,CODCr,TP,TN,Cu2+ and Cr6+ were 140 mg·L-1,280 mg·L-1,6.8 mg·L-1,40 mg·L-1,10 mg·L-1 and 10 mg·L-1,respectively.In comparison with the control experiments,the removals of these indexes were increased by above 32%,27%,27%,28%,37%and 19%,respectively.The pH and DO of effluent could be maintained at 6.63 to 7.63,and 3.02 mg·L-1 to 3.84 mg·L-1.
檀笑1,2, 龙颖贤1, 叶锦韶2*, 蔡彬1,2, 刘芳文1. 有机物和重金属复合污染水体的修复植物筛选及修复性能[J]. , 2011, 30(1): 55-59.
TAN Xiao1,2, LONG Ying-xian1, YE Jin-shao2, CAI Bin1,2, LIU Fang-wan1. Hytoremediation of organic pollutants and heavy metals co-existed in water body. , 2011, 30(1): 55-59.
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