댐부유물톱밥과하수슬러지를이용한퇴비화연구 (The Study on the Composting by Using Dam SuspendedParticle Sawdust and Sewage Sludge)

서지정보

· 발행기관 : 유기성자원학회
· 수록지 정보 : 유기물자원화 / 18권 / 1호 / 98 ~ 103페이지
· 저자명 : 류지훈, 이종진, 홍주화, 이규승, 박관수, 장기운, 한기필

초록

기후변화에따른집중호우와장마로댐내에가장많이유입되는초목류와2012년부터해양투기가전면금지되는하수슬러지의자원재활용방안으로퇴비화연구를수행하였다. 처리구는댐부유물톱밥, 참나무수피, 하수슬러지, 계분을30 : 20 : 40 : 10 (S-1)과, 댐부유물톱밥, 참나무수피, 하수슬러지, 계분을30 : 30 : 30 : 10(S-2)로설정하여퇴비화과정중이화학적특성등을분석하였다. S-1과S-2 처리구모두퇴적더미내부온도가65℃이상에서10일정도유지되어대부분의병원균이사멸되었고, 최종90일째pH는S-1 처리구가7.78로S-2 처리구보다약간더높았다. C/N율은S-1 처리구가15.3, S-2 처리구는16.9 였다. 최종제품의품질은부산물비료퇴비공정규격에적합하였다. 부숙도평가에서발아지수는S-1이91, S-2가84로S-1이더높은부숙도를보였다. 따라서우수한품질과안전성, 그리고댐부유물톱밥과하수슬러지의이용량이가장많은배합비율인S-1(댐부유물톱밥: 참나무수피: 하수슬러지: 계분= 30 : 20 : 40 : 10)으로제품을생산하는것이바람직하다.

영어초록

This study was carried out on the composting of the most part of the plant waste materialsinflowed-drifting into the dam during the localized heavy rain and the rainy season, due to theabnormal climate change, and for the sewage sludge banned to dispose legally into the oceanfrom the year of 2012. It was analysed the distinctive physicochemical qualities of the compostwith treatment S-1(dam suspended particle sawdust : oak tree bark : sewage sludge : chickenmanure = 30 : 20 : 40 : 10) and treatment S-2(dam suspended particle sawdust : oak tree bark :sewage sludge : chicken manure = 30 : 30 : 30 : 10). Both S-1 and S-2 maintained for 10 daysat above 65℃of the compost pile temperature, and the most of its pathogen were destroyed. Incase of pH, until the 90th day into composting, S-1 with the pH value of 7.78 was slightly higherthan S-2. The C/N value of S-1 was 15.3 and that of S-2 was 16.9. The quality of its finalproduct was satisfied to the manufacture-standards. The GI value of S-1 was 91 higher thanthat of S-2, which was 84. In conclusion, it is highly recommendable to manufacture S-1 for itsfrequent usage of dam suspended particle sawdust and sewage sludge, and for its excellentquality and safety.

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