Studies on the Purification of Sewage Water by Water Hyacinth (Eichhornia crassipes)

1부레옥잠에 의한 생활오수(生活汚水)의 정화효과(淨化效果)

  • 김복영 (농촌진흥청 농업기술연구소) ;
  • 이상규 (농촌진흥청 농업기술연구소) ;
  • 권장식 (농촌진흥청 농업기술연구소) ;
  • 소규호 (농촌진흥청 농업기술연구소) ;
  • 윤은호 (농촌진흥청 농업기술연구소)
  • Published : 1991.06.30


Field experiments were carried out to evaluate the utility of water hyacinth(Eichhornia crassipes Solm-Laub) for purifyng sewage water in paddy fields of $247m^2$(75 Pyung). A field was lined with PVC film at a depth of 30cm and sewage water for 40 days. The results obtained with the use of water hyacinth in the sewage water are summarized as follows : 1. The Sodium linear dodecyl benzene sulfonate content of sewage water on the inlet was 6.33 ppm, themiddle point was 3.50 ppm and the outlet was 1.37 ppm. 2. With the use of water hyacinth in the sewage and the distilled water, the L.A.S. content were decreased from 7.3 and 4.0 to 0, respectively. 3. Sterillization with 70% ethyl alcohol at the roots of the water hyacinth was reduced the degradation effect of L.A.S. 4. The COD and $NH_4^+-N$ content of the sewage decreased from 107 and 32.7 ppm to 32.6 and 16.2 ppm, respectively and the P, Na and Cl content also were reduced.