Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Selection of Optimum Filter Media in Small-Scale Livestock Wastewater Treatment Apparatus by Natural Purification Method

자연정화공법을 이용한 소형 축산폐수처리장치의 최적여재 선정

  • Kim, Ah-Reum (Division of Applied Life Science(BK21 Program), Graduate School of Gyeongsang National University) ;
  • Kim, Hong-Chul (Department of Microbiological Engineering, Gyeongnam National University of Science and Technology) ;
  • Seo, Dong-Cheol (Division of Applied Life and Environmental Sciences, Sunchon National University) ;
  • Park, Jong-Hwan (Division of Applied Life Science(BK21 Program), Graduate School of Gyeongsang National University) ;
  • Kim, Sung-Hun (Division of Applied Life Science(BK21 Program), Graduate School of Gyeongsang National University) ;
  • Lee, Seong-Tae (Gyeongsangnam Agricultural Research and Extension Services) ;
  • Jeong, Tae-Uk (Busan Metropolitan City institute of Health and Environment Research) ;
  • Choi, Jeong-Ho (Division of Research and Development, Korea Environment Corporation) ;
  • Kim, Hyun-Ook (Division of Environmental Engineering, University of Seoul) ;
  • Cho, Ju-Sik (Division of Applied Life and Environmental Sciences, Sunchon National University) ;
  • Heo, Jong-Soo (Division of Applied Life Science(BK21 Program), Graduate School of Gyeongsang National University)
  • 김아름 (경상대학교 응용생명과학부 (Bk21 농생명산업 글로벌 인재 육성 사업단)) ;
  • 김홍출 (경남과학기술대학교 미생물공학과) ;
  • 서동철 (순천대학교 생명환경과학부) ;
  • 박종환 (경상대학교 응용생명과학부 (Bk21 농생명산업 글로벌 인재 육성 사업단)) ;
  • 김성헌 (경상대학교 응용생명과학부 (Bk21 농생명산업 글로벌 인재 육성 사업단)) ;
  • 이성태 (경상남도 농업기술원) ;
  • 정태욱 (부산광역시 보건환경원구원) ;
  • 최정호 (한국관리공단 연구개발본부) ;
  • 김현욱 (서울시립대학교 환경공학부) ;
  • 조주식 (순천대학교 생명환경과학부) ;
  • 허종수 (경상대학교 응용생명과학부 (Bk21 농생명산업 글로벌 인재 육성 사업단))
  • Received : 2011.03.19
  • Accepted : 2011.04.15
  • Published : 2011.04.30
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Abstract

In order to develop livestock wastewater treatment technology by natural purification method, the optimum filter media in small-scale livestock wastewater treatment apparatus for treating livestock wastewater were studied. Removal rates of pollutants under different filter media were in the other of coarse sand ${\fallingdotseq}$ broken stone > zeolite > calcite for COD, zeolite >> broken stone ${\fallingdotseq}$ coarse sand ${\fallingdotseq}$ calcite for T-N, and calcite > coarse sand ${\fallingdotseq}$ broken stone ${\fallingdotseq}$ zeolite for T-P. Based on the above results, the optimum filter media was coarse sand in small-scale livestock wastewater treatment apparatus. To meet acceptable effluent quality standard for livestock wastewater and to improve T-N and T-P removal efficiencies, removal efficiencies of pollutants in small-scale livestock wastewater treatment apparatus with mixed filter media were studied. The removal rates of COD, SS, T-N and T-P in effluent were 84, 94, 65 and 98% in small-scale livestock wastewater treatment apparatus with mixed filter media, respectively. For increasing the T-N and T-P removals in small-scale livestock wastewater treatment apparatus, the mixed filter media are recommended.

소규모 축산농가로부터 발생되는 축산폐수를 효과적으로 처리하기 위한 인공습지를 개발하기 위하여 인공습지에서 가장 중요한 인자 중 하나인 최적 여재의 선정에 관하여 연구하였다. 최적여재를 선정하기 위하여 여재를 왕사, 쇄석, 제올라이트 및 방해석으로 달리하여 충진한 후 각 여재별 축산폐수 처리효율 조사한 결과 COD 처리효율은 왕사가 다른 여재에 비하여 높았고, SS 처리효율은 모든 여재에서 94-95%로 큰 차이 없었다. 또한 T-N 처리효율은 제올라이트가 다른 여재에 비해 높았고, T-P 처리효율은 방해석이 다른여재에 비해 높았다. 이상의 결과에서 COD, SS, T-N 및 T-P 모두를 안정적으로 처리할 수 있는 최적여재는 왕사였다. 소형 축산폐수처리장치에서 질소와 인 처리효율을 극대화 하기 위해 호기성조 (왕사:쇄석:방해석=3:2:1)와 혐기성조 (왕사:쇄석:제올라이트=3:2:1)에 혼합여재를 주입한 결과 최적 여재인 왕사에 비해 질소 및 인처리효율이 각각 15% 및 7% 향상되었다.

Keywords

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