폐가축사체의 농업적 재활용을 위한 가축사체액상부산물의 액비화 조건 구명
Liquid-Composting Conditions of By-product Obtained from Degradation of Animal Carcass for Agriculture Recycling
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BACKGROUND: Globally, concern about emerginginfectious diseases of livestock is growing. For the disposalof the animal carcass, it is necessary to recycle the carcassinto an agriculturally usable product. The objective of thisstudy was to investigate the composting conditions of liquidby-product obtained from degradation of animal carcass. METHODS AND RESULTS: Optimum conditions of liquidfertilizer were investigated using different microorganisms,pHs, and volumes of microorganisms (Lactobacillus rhamnosus +Pichia deserticola). Based on the results from the optimumconditions, compost maturity and quality of liquid fertilizerwere evaluated for 112 days. The compost maturity ofliquid fertilizer were higher in the order of LP(Lactobacillusrhamnosus + Pichia deserticola) > BC(Bacillus cereus) >BS(Bacillus subtilis). The optimum condition underdifferent volumes of LP was injection of 0.5 mL/100 mL. The compost maturity under different pHs were higher inthe order of pH 7 > 5 ≧ 9 ≑ 11. The liquid by-product at 56days after composting was completely decomposed. Theconcentrations of T-N, T-P and K2O in liquid fertilizer at 56days were 0.94, 0.17 and 3.78%, respectively, and the sumof those concentrations was 4.89%. CONCLUSION(S): Liquid fertilizer of by-product usingpig carcass was decomposed with optimum conditions(LP,pH 7, injection of 0.5 mL/100 mL) in 56 days aftercomposting, and was suitable for official standard ofcommercial fertilizer.
Abstract
BACKGROUND: Globally, concern about emerginginfectious diseases of livestock is growing. For the disposalof the animal carcass, it is necessary to recycle the carcassinto an agriculturally usable product. The objective of thisstudy was to investigate the composting conditions of liquidby-product obtained from degradation of animal carcass. METHODS AND RESULTS: Optimum conditions of liquidfertilizer were investigated using different microorganisms,pHs, and volumes of microorganisms (Lactobacillus rhamnosus +Pichia deserticola). Based on the results from the optimumconditions, compost maturity and quality of liquid fertilizerwere evaluated for 112 days. The compost maturity ofliquid fertilizer were higher in the order of LP(Lactobacillusrhamnosus + Pichia deserticola) > BC(Bacillus cereus) >BS(Bacillus subtilis). The optimum condition underdifferent volumes of LP was injection of 0.5 mL/100 mL. The compost maturity under different pHs were higher inthe order of pH 7 > 5 ≧ 9 ≑ 11. The liquid by-product at 56days after composting was completely decomposed. Theconcentrations of T-N, T-P and K2O in liquid fertilizer at 56days were 0.94, 0.17 and 3.78%, respectively, and the sumof those concentrations was 4.89%. CONCLUSION(S): Liquid fertilizer of by-product usingpig carcass was decomposed with optimum conditions(LP,pH 7, injection of 0.5 mL/100 mL) in 56 days aftercomposting, and was suitable for official standard ofcommercial fertilizer.
참고문헌 (18)
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