植物生态学报 ›› 1992, Vol. 16 ›› Issue (2): 167-173.

• 论文 • 上一篇    下一篇

水蕹菜(Ipomoea aquatica)对含银废水的净化功能研究

皮宇,戴全裕,陈源高   

  • 发布日期:1992-02-10
  • 通讯作者: 皮宇

A Study on the Function to Purify the Wastewater Containing Silver by Ipomoea aquatica

Pi Yu, Dai Quan-yu, Chen Yuan-gao   

  • Published:1992-02-10
  • Contact: Zheng Jian-duan

摘要: 本文通过对水蕹菜净化含银废水的室内外静、动态试验研究得出:(1)水蕹菜对离子态银(Ag+)的去除速率高于对络合态银(Ag(S2O3)2)3-的去除速率即KAg+>K[Ag(S2O3)2]3-;(2)水蕹菜对银的净化率R与污水停留时间t呈指数函数关系(R=AeB/t,A、B为常数,B<0),其表面去除负荷Ps则与t呈幂函数关系(Ps=AtB B<0);(3)试验证明水蕹菜是生物净化含银废水的优良品种之一。

Abstract: Results of static and dynamic simulated test to purify the waste water containing silver by Ipomoea aquatica indicated, 1) Removal rate of Ipomoea aquatica to Ag+ is higher than removal rate to [Ag(S203)2]3-,or KAg+>K[Ag(S2O3)2]3-. 2)Relation between purification rate (R) to[Ag+(S2O3)2)3- and detention time (t) is R = AeB/t(B<0). Relation between purification rate of surface (Ps)and detention time(t)is Ps=AtB(B