A study on the effect of the water purification by Lythrum anceps, Pistia straiotes, Oenanthe javanica, and Phragmites japonica

부처꽃, 물상추, 미나리, 달뿌리풀의 수질정화효과에 관한 연구

  • 조해용 (선문대학교 환경공학과)
  • Published : 2007.04.30

Abstract

The COD removal capacity of aquatic plants, when foamed glasses were not used, showed 56% for Pistia straiotes, 48% for Phragmites japonica and 41% for Oenanthe javanica, but no significant COD removal was observed for Lythrum anceps. When the foamed glasses were used as support materials, the COD removal efficiency increased for all aquatic plants used in this study showing 69% fur Pistia straiotes, 68% for Pharagmites japonica 62% for Oenanthe javanica, respectively. The T-N removal efficiency of aquatic plants when foamed glasses were used as support materials showed 91% for Lythrum anceps and 93% for Phragmites japonica. Similar removal efficiency was observed as 94% for all aquatic plants planted as a group used in this study. The T-P removal efficiency of aquatic plants when foamed glasses were not used showed 35% for Lythrum anceps, 8% for Phragmites japonica, however, that, when foamed glasses were used, ranged 78% for Lythrum anceps, 43% for Phragmites japonica, showing that the foamed glasses increase the T-P removal efficiency of aquatic plants used in this study.

Keywords

Aquatic Plants;Water Purification;Plant distribution