Pig farms are a vital component of rural economies in Australia. However, disposal of effluent leads to many environmental problems. This case study of the Berrybank Farm piggery waste management system in Victoria estimates greenhouse gas (GHG) benefits from three different activities. Analysis reveals that the capturing and combusting of methane from piggery effluent could save between 4859 and 5840 tCO2e yr−1 ofGHGemissions. Similarly, using methane for replacing fuels for electricity generation could save another 800 tCO2e/yr of GHGs. Likewise, by utilizing the biogas wastes to replace inorganic fertilizers there could be a further saving ofud1193 to 1375 tCO2e yr−1 of GHG, depending on the type of fertilizers the waste replaces. Therefore, a well-managed piggery farm with 15,000 pigs could save 6,852 to 8,015 tCO2e/yr, which equates to the carbon sequestrated from 6,800 to 8,000 spotted gum trees (age = 35 year) in their above plus below-ground biomass. Implementation of similar project in suitable areas in Australia could have significant environmental and financial benefits.ud
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机译：养猪场是澳大利亚农村经济的重要组成部分。然而，废水的处理导致许多环境问题。维多利亚州Berrybank农场养猪废物管理系统的此案例研究估计，温室气体（GHG）受益于三种不同的活动。分析表明，从猪场废水中捕获和燃烧甲烷可节省GH排放量的4859至5840 tCO2e yr-1。同样，用甲烷代替燃料来发电可以每年节省800吨二氧化碳当量。同样，通过利用沼气废物代替无机肥料，根据废物替代肥料的类型，可以进一步将温室气体减少1193至1375 tCO2e yr-1。因此，一个拥有15,000头猪的管理良好的养猪场每年可以节省6,852至8,015 tCO2e /年，这相当于其上方和地下生物量中从6,800至8,000棵点胶树（年龄= 35年）中固存的碳。在澳大利亚合适的地区实施类似项目可能会带来巨大的环境和经济效益。 ud
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