CAJ | 학술논문

以北京郊区某规模化养猪场现有堆肥系统为例，运用生命周期评价方法，以养猪场现行堆肥工艺为参比，以4种不同翻堆频率条件下的条垛式堆肥工艺作为备选方案，对该养猪场粪便不同堆肥处理情景的环境影响进行系统对比分析。结果表明，每处理1 t新鲜猪粪的化石能源损耗潜力为80.8~221.5 MJ；堆肥氨挥发排放对系统总酸化效应和富营养化效应贡献率均达96%以上；CO2和N2O等温室气体排放对总温室效应的贡献分别为58%~88%和8%~35%。能源投入和气体排放是猪粪堆肥生命周期环境影响的关键因素，实践生产中应注重使用清洁能源，并结合工艺特点采用氨挥发与温室气体减排技术，减少堆肥生产过程的环境污染。
이북경교구모규모화양저장현유퇴비계통위례，운용생명주기평개방법，이양저장현행퇴비공예위삼비，이4충불동번퇴빈솔조건하적조타식퇴비공예작위비선방안，대해양저장분편불동퇴비처리정경적배경영향진행계통대비분석。결과표명，매처리1 t신선저분적화석능원손모잠력위80.8~221.5 MJ；퇴비안휘발배방대계통총산화효응화부영양화효응공헌솔균체96%이상；CO2화N2O등온실기체배방대총온실효응적공헌분별위58%~88%화8%~35%。능원투입화기체배방시저분퇴비생명주기배경영향적관건인소，실천생산중응주중사용청길능원，병결합공예특점채용안휘발여온실기체감배기술，감소퇴비생산과정적배경오염。
We evaluated the environmental burdens of one existing composting system and four alternative composting systems with different turning frequencies in Beijing area using life cycle assessment(LCA). The results showed that resources consumption and atmospheric e-missions played important roles in the environmental impacts of pig manure composting process. For these five composting options, fossil en-ergy of 80.8 to 221.5 MJ was needed to compost one ton of pig manure. During composting, ammonia emissions contributed more than 96%to the acidification potential(AP)and eutrophication potential(EP). Carbon dioxide and N2O from the pig farms contributed to about 58%to 88%and 8%to 35%of the total global warming potential, respectively. Of the alternative options, the options with turning frequen-cy of 1 to 2 times per week with diesel-powered turning machine should be recommended for pig manure composting because of the lower environmental impacts.