规模猪场厌氧-好氧粪污处理系统温室气体减排量评估

中国沼气ChinaB／og盘,2008，26(5)3规模猪场厌氧一好氧粪污处理系统温室气体减排量评估马宗虎，南国良(中国农业大学水利与土木工程学院，北京100083)摘要：在清洁发展机制(CDM)背景下的温室气体减排量交易是一种能帮助畜牧企业主用先进的粪污处理技术替代现有的开放式厌氧塘的好途径。本文的目的是评估先进的厌氧一好氧粪污处理系统的温室气体减排量，案例选自山西某公司的一个存栏6187头的规模猪场。基准线情景以及本文选用的先进系统项目活动排放源包括厌氧消化和好氧过程产生的CH。以及粪污在存贮和利用的过程中产生的N：0；减排量是指基准线情景排放和所选用先进系统排放的差值。项目选用的厌氧一好氧先进系统包括厌氧消化器系统、固液分离系统、废水的好氧处理系统以及分离固体好氧堆肥系统，替代开放厌氧塘系统减少了温室气体的排放，经估算温室气体排放量减少了79．6％，从6619．7tC02e·a“减少到1348．5tC02e·a～，6187头的规模猪场的总减排量为5271．2tC02e·a。1或者说O．85tC02e·head～a～。将产生的减排量在国际碳市场以每tCO，e8欧元出售，每年将获得减排收入421695元，每头猪将产生68．2元的减排效益。减排收益的获得弥补了畜牧企业采用先进处理工艺的较高资金投入，促进了先进处理工艺的推广与普及，极大改善畜牧生产以及周边环境。关键词：清洁发展机制(CDM)；减排量；温室气体；粪污处理系统；规模猪场中图分类号：X5l；X703；s216．4文献标识码：A文章编号：1000—1166(2008)05—0003—06EvaluationofGreenhouseGasEmissionReductionsfromImplementationofAnaerobic‘aerobicWasteTreatmentSystemsonSwineFarm／MAZong-hu，NANGuo-ltang／(CollegeofWaterConservancy&CiviIEngineering，ChinaAgriculturalUniversity，B嘲ing100083，China)Abstract：Underthebackgroundofthecleandevelopmentmechanism(CDM)。tradingofgreenhousegas(GHG)emissionreductionsis明attractiveapproachtohelpproducersimplementingcleanertreatmenttechnologi朗toreplacecurrentsys-tern，sayanaerobicla皇p咖．Estimationofgreenhousegas(CHG)emissionreductionsWarmadeinthis州ectbyoDmpa-ringthegreenhousegasemissionfromananaerobic—aerobicwastetreatmentsystemswithbaselinem811LLremanagementsys—tern，thatisanaerobicla90蚰inthisstudy．TheprojectWSScarriedoutinalargescaledswinefaxmwith6187pigsinShanxiprovince．TheestimationSOUl-Ce8includedtheCH4emissionsfromthedecompositionoflnanui℃andN20emissionsduringstoringandhandlingofmanureinanaerobic—aerobicsystemandbaselinemaBuremanagementsystem．Emission静duetionswereresultedfromtheemissiondifferencesbe=twecnthetwosystem．Theprojectactivityinehded如ric髓of硼MIe．robiedigester，liquid-solidseparation，aerobicliquidfermentationsystemandcompostingsystem．Theresultshowedthattheadvancedanaerobic·aerobicsystemreducedgreenhousegasemissionby79．6％．Theemissionofcarbondioxideequiv-alents(C02e)of6619．7t·a一1bybaselinesituationreducedto1348．5tC02e·a一1byadv