지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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This study aims to investigate the characteristic of swine wastewater treatment by liquefied fertilizer tank and outlne of optimum manuring of liquefied fertilizer. The results of this study were summarized as follows; The concentrations of BOD5 in raw manure are 15,320 mg/L at slurry/scraper type 19,950 mg/L at slurry type and 9,010 mg/L at scraper type of piggery. The removal rates of the organic substance were 45.3% at slurry/scraper type 54.8% at slurry type and 61.3% at scraper type of piggery. The concentration of NH3-N was relatively higher at slurry/scraper type and at slurry type of piggery which contained more feces than at scraper type of piggery. From the beginning of storage to 100 days the concentration of N and P was changed unsteadily, but after 130 days N and P was shown relatively stable concentration. As standard of N concentration after 6 months storage, the required area of grassy place per a head of animal is 295 ㎡/head at slurry/scraper type 318 ㎡/head at slurry type and 294 ㎡/head at scraper type of piggery.
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