餐厨垃圾中温干法厌氧消化快速启动实验研究

第32卷第10期2012年10月环境科学学报ActaScientiaeCircumstantiaeVol.32,No.10Oct.,2012基金项目:国家科技支撑计划(No.2010BAC67B04);国家水体污染控制与治理科技重大专项(No.2011ZX07316-004)SupportedbytheNationalKeyTechnologyR&DProgram(No.2010BAC67B04)andtheNationalMajorSpecialProjectsofWaterPollutionControlandManagement(No.2011ZX07316-004)作者简介:董滨(1978—),男,副教授,E-mail:tj_dongbin@163.com;∗通讯作者(责任作者),E-mail:daixiaohu@tongji.edu.cnBiography:DONGBin(1978—),male,associateprofessor,E-mail:tj_dongbin@163.com;∗Correspondingauthor,E-mail:daixiaohu@tongji.edu.cn董滨,王凯丽,段妮娜,等.2012.餐厨垃圾中温干法厌氧消化快速启动实验研究[J].环境科学学报,32(10):2584-2590DongB,WangKL,DuanNN,etal.2012.Dryanaerobicdigestionoffoodwasteundermesophilicconditions:Rapidstart-upwithhigh-solidinoculums[J].ActaScientiaeCircumstantiae,32(10):2584-2590餐厨垃圾中温干法厌氧消化快速启动实验研究董滨,王凯丽,段妮娜,戴翎翎,戴晓虎∗同济大学环境科学与工程学院,上海200092收稿日期:2011-12-09修回日期:2012-02-22录用日期:2012-03-05摘要:为研究餐厨垃圾在进行干法厌氧消化时,利用高含固率消化液作为接种物进行快速启动的可行性,采用两组分别含有低含固率消化液和高含固率消化液的平行反应器,研究了在(35±1)℃完全混合反应器(CSTR)中进行的餐厨垃圾干法厌氧消化的启动性能.结果表明,在同样43d的启动过程中,使用高含固率消化液作为接种物的反应器的有机负荷可成功地增加到10.0kg·m-3·d-1(以VS计),而使用低含固率消化液作为接种物的反应器的有机负荷只能达到3.5kg·m-3·d-1(以VS计).与传统启动相比,快速启动没有停滞期,且拥有较短的恢复期;快速启动的启动速度是传统启动的2.5倍.恢复期之后,在相同的有机负荷下,快速启动的沼气和甲烷产率、甲烷产量及VS降解率都较传统启动呈现出较好的性能.关键词:干法厌氧消化;餐厨垃圾;快速启动;中温文章编号:0253-2468(2012)10-2584-07中图分类号:X705文献标识码:ADryanaerobicdigestionoffoodwasteundermesophilicconditions:Rapidstart-upwithhigh-solidinoculumsDONGBin,WANGKaili,DUANNina,DAILingling,DAIXiaohu∗DepartmentofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092Received9December2011;receivedinrevisedform22February2012;accepted5March2012Abstract:Toanalyzethefeasibilityofrapidstart-upofdryanaerobicdigestionoffoodwastewithhigh-soliddigestateasinoculums,twoparallelreactorscontaininghigh-solidandtraditionallylow-soliddigestatewereused.Start-upperformanceofthetwodigestatesindryanaerobicdigestionoffoodwastewasinvestigatedinthecompletelystirredtankreactors(CSTR)at(35±1)℃.Itwasshownthatduringthesame43-daystart-upperiod,theorganicloadingrate(OLR)wassuccessfullyincreasedto10.0kg·m-3·d