陆生植物菜用于有机废水的生态治理研究

Ecological treatment of organic wastewater by terraneous Ipomoea aquatica Forsk

摘要: 试验研究了陆生植物菜对有机废水的治理效果，结果表明：菜在水体中可有效降解COD、有机氨氮；在曝气、进料COD浓度为1300mg/L条件下，COD降解率达90%以上，而进料COD浓度为2600mg/L时，COD最大处理能力达10.56g/L·d；菜对无机氨氮降解率达94%，有机氨氮降解率达73%以上。与水葫芦废水处理过程相比，菜具有较广泛的水体环境适应性，对猪场废水具有一定处理效果。

Abstract: The effect of wastewater treatment by terraneous Ipomoea aquatica Forsk was studied.Ipomoea aquatica Forsk shows positive removal effect on organic nitrogen and COD.Under aerating conditions,Ipomoea aquatica Forsk can remove 90% or more COD when feeding COD concentration is 1300mg/L, with a maximum removal capacity of 10.56g/L·d when feeding COD concentration is 2600mg/L.Inorganic and organic nitrogen removal rate can reach,respectively 94% and 73% or more.Compared with Eichhornia crassipes Solms,Ipomoea aquatica Forsk has better acclimatization and is more efficient for biodegradation of piggery wastewaters.