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A Study on the Land Improvement Effect of Sewage Sludge and Sewage Sludge Dry Fuel Mixture

하수슬러지와 하수슬러지 건조연료 혼합물의 토지개량효과에 관한 연구

  • Kwon, Gi Woon (Resource Recirculation Technology Research Center, SUDOKWON Landfill Site Management Corp) ;
  • Park, Hye Ok (Resource Recirculation Technology Research Center, SUDOKWON Landfill Site Management Corp) ;
  • Lee, Kyeong Ho (Resource Recirculation Technology Research Center, SUDOKWON Landfill Site Management Corp) ;
  • Kim, Moon Jeong (Resource Recirculation Technology Research Center, SUDOKWON Landfill Site Management Corp) ;
  • Lee, Woo Weon (Resource Recirculation Technology Research Center, SUDOKWON Landfill Site Management Corp) ;
  • Ryu, Don Sik (Resource Recirculation Technology Research Center, SUDOKWON Landfill Site Management Corp)
  • 권기운 (수도권매립지관리공사 자원순환기술연구소) ;
  • 박혜옥 (수도권매립지관리공사 자원순환기술연구소) ;
  • 이경호 (수도권매립지관리공사 자원순환기술연구소) ;
  • 김문정 (수도권매립지관리공사 자원순환기술연구소) ;
  • 이우원 (수도권매립지관리공사 자원순환기술연구소) ;
  • 류돈식 (수도권매립지관리공사 자원순환기술연구소)
  • Received : 2020.07.28
  • Accepted : 2020.09.19
  • Published : 2020.09.30

Abstract

The aims of this study is to land improvement effect of sewage sludge dry fuel mixture. The mixing ratio of sewage sludge and dry fuel was mixed at a weight ratio of 1:1 to make a mixture, experimental designone was designed as one control (0 %) site and three test groups that each mixture of 10 %, 20 %, 30 % was added. Comparison of yield after cultivation of Kenaf 90days, in the 10 % test group the length of the stem increased by 73 % compared to control site and 20 % test group the leaf yield increased by 227 % compared to control site. It is judged that the growth rating the blooming of 30 % test group is faster than and the chlorophyll content is the highest(71.6SPAD) that of another control. In conclusion, the addition of dry fuel mixtures is effective in improving overall soil quality for plants to live.

본 연구는 하수슬러지와 건조연료를 혼합한 혼합물에 대해 토지개량효과를 검토하기 위한 연구이다. 혼합물은 하수슬러지와 건조연료를 중량대비 1:1 비율로 혼합하여 만들었다. 1개의 대조군(0 %)부지와 혼합물을 10 %, 20 %, 30 % 시비한 3개의 비교군을 조성하였다. 토양의 유효인산 함량변화는 혼합물을 시비한 비율에 따라 상관관계가 높은 것으로 확인되었다(P<0.05). 케나프를 90일 재배 후 수확량을 비교한 결과 10 %투입된 배지에서 줄기의 길이가 대조군 대비 73 %증가를 보였으며, 잎 수확량의 경우 20 %배지에서 227 % 가장 높은 증가율을 보였다. 30 %에서는 다른 배지보다 꽃의 개화가 먼저 된 것으로 보아 성장률이 다른 배지보다 빠른 것으로 판단되며 엽록소 함량은 71.6(SPAD)으로 가장 높은 수치를 보여 조단백질의 함량이 다른 배지에 비해 높을 것으로 판단된다. 따라서 건조연료 혼합물의 투입을 통해 전체적으로 식물이 생육하기 좋은 토질로 개선하는데 효과가 있는 것으로 사료된다.

Keywords

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