초록

본 연구에서는 국내외에서 활용되고 있는 퇴비 품질 및 부숙도 측정방법의 현황을 비교 검토하였고, 시판퇴비의 이화학 분석 및 몇 가지 부숙도 검사를 수행하였으며, 여러 가지 부숙도 측정방법 중에서 우리나라에서 적용하기에 적합한 부숙도 검사방법을 찾고자 이산화탄소와 암모니아 가스에 의한 기계적 측정법과 국외에서 많이 이용되고 있는 재발열시험법의 활용성을 넓히고자 대체 기구를 이용한 검사방법을 시도하였다.

Abstract ▼

Manure composting is a well established approach for the stabilization of nutrients and the reduction of pathogens and odours in manures, which can be evaluated as compost maturity. The compost maturity is one of the significant parameter to evaluate the quality of compost and hence a wide range of

Manure composting is a well established approach for the stabilization of nutrients and the reduction of pathogens and odours in manures, which can be evaluated as compost maturity. The compost maturity is one of the significant parameter to evaluate the quality of compost and hence a wide range of maturity test has been developed and applied. The maturity can be estimated by self-heating reaction, seed germination rate, oxygen consumption rate, respiration rate, earthworm response, and generation of CO2/NH3. Each method has disadvantage such as time consuming, less accuracy, and high cost. Also, in most case, maturity test by only one method does not reflect the actual extent of maturity.
Hence, application of multi methodologies is recommended. The current study was conducted to compare the commercially available two maturity testers Solvita and CoMMe-100 in association with comparison with seed germination test. Solvita and CoMMe-100 use colorimetric method to examine the amount of generated CO2 and NH3 from sample compost.
Commercially available composts in Korea were collected for this study. The composts consisted of about 50% animal manure and the rest of organic materials such as hulks and sawdusts. From the preliminary test, ten composts at different stage of composting were selected and measured by selected methods for maturity test. Among various methods of maturity tests, two mechanical methods (Solvita and CoMMe-100) were compared with self-heating test.
Both mechanical methods showed similar trend in maturity test for ten samples even if there was some difference in the absolute maturity level. The discrepancy between two methods was able to be corrected to fit each other by adjusting the reaction time and changing the index level in the standard color chart. In the self-heating test, 2L volume stainless vacuum bottles were tested for altenative using instead of dewar self-heating flask for compost maturity test. In maturity tests, using a thermos obtained a satisfactory result.

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 요약문 ... 3
• SUMMARY ... 4
• 제1장 서 론 ... 5
• 제2장 국내외 기술개발 현황 ... 7
• 제3장 연구개발수행 내용 및 결과 ... 10
• 제1절 연구내용 ... 10
• 제2절 연구결과 ... 11
• 제4장 연구개발목표 달성도 및 대외기여도 ... 22
• 제1절 목표대비 달성도 ... 22
• 제2절 정량적 성과 ... 22
• 제5장 연구개발결과의 활용계획 ... 23
• 제6장 중요 변동사항 ... 24
• 제7장 참고문헌 ... 25
• [참고 1] 연차평가 지적사항 및 조치결과 ... 27
• [참고 2] 주요연구 성과 ... 28
• 퇴비 부숙도 간이검사방법 활용 ... 28
• 주요 결과 요약서 ... 29