Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Maturity Evaluation and Determination of Aeration Time Using Germination Index of Co-Digestates

발아지수를 이용한 혼합 혐기소화액의 부숙도 평가 및 폭기기간 설정

  • Byeon, Ji-Eun (College of Life and Environment Science, SangJi University) ;
  • Lee, Hong-Ju (College of Life and Environment Science, SangJi University) ;
  • Hwang, Sun-Goo (College of Life and Environment Science, SangJi University) ;
  • Rhim, Tae-Jin (College of Life and Environment Science, SangJi University) ;
  • Ryoo, Jong-Won (College of Life and Environment Science, SangJi University)
  • 변지은 (상지대학교 생명환경과학대학) ;
  • 이홍주 (상지대학교 생명환경과학대학) ;
  • 황선구 (상지대학교 생명환경과학대학) ;
  • 임태진 (상지대학교 생명환경과학대학) ;
  • 류종원 (상지대학교 생명환경과학대학)
  • Received : 2019.05.20
  • Accepted : 2020.01.03
  • Published : 2020.06.30
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Abstract

This study was conducted to evaluate the effect of optimal aeration time of livestock manure slurry with fruits pomace on germination index. Six co-digestates of livestock manure slurry with fruits was aerated with 0.1 ㎥ air/㎥·min for 54 days. The maturity of digestates was evaluated using the germination method. The germination index(GI) of co-digestate of SS + CS + MP was more than 70 at the 30th day of aeration. The GI of co-digestate of SS + CS was more than 70 at the 36th day of aeration. The GI of digestate of swine manure slurry alone was 70 at the 54th day of aeration. The co-digestate of SS + MP caused to shorten 24 days of aeration period to reach GI of 70, compared to swine manure digestate. These results suggest that the germination index of seed could be used to establish the optimal aeration time for co-digestate of liquid fertilizer.

본 연구는 가축분뇨 슬러리와 과실착즙박 혼합 혐기소화액의 폭기기간이 발아지수에 미치는 영향을 구명하여 혐기소화액 종류별 적정 폭기기간 설정에 활용하고자 수행하였다. 6개 혐기소화액은 폭기처리 기간 중 공기의 량을 0.1 ㎥ air/min.㎥ 주입하고, 52일 동안 폭기하였다. 혐기소화액의 부숙도를 평가하기 위하여 무 종자를 이용하였다. 돈분 + 우분 + 감귤착즙박 혼합 혐기소화액은 처리구 중 가장 빨리 폭기처리 30일에 발아지수(GI)가 70 이상을 나타내었다. 돈분 + 우분 혼합혐기소화액은 폭기처리 36일에 발아지수(GI)가 70 이상를 나타내었다. 돈분 슬러리 100 % 단독 혐기소화액의 발아지수(GI)는 가장 늦은 폭기처리 54일에 70에 도달하였다. 돈분슬러리 + 과실착즙박 혼합소화액이 돈분 단독 혐기소화액 보다 발아지수 70 도달 폭기기간이 24일 단축되었다. 혐기소화액의 호기성 액비 처리에서 종자 발아지수는 적정 폭기기간 설정에 활용이 가능 할 것으로 보인다.

Keywords

References

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