畜禽糞便高溫堆肥機(jī)理與應(yīng)用研究.pdf

1、中國農(nóng)業(yè)大學(xué)博士學(xué)位論文畜禽糞便高溫堆肥機(jī)理與應(yīng)用研究姓名：李吉進(jìn)申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：土壤學(xué)指導(dǎo)教師：郝晉珉20040601AbstractAseriesofexperimentswerecarriedoutaimingatfulluseofsolidoffalfromindustryandagricultureLivestockmanuremaizestrawfurfuraldregandmushroomdregwerechose

2、nasrawmaterialsandpackingmaterialsincompostingexperimentstostudytheinfluenceofdifferentbacterialanddifferentpackingmaterialsonthegeneralnature，dynamicchangeofmainnutrients，binchemicalcharacteristics，humiccharacteristics，

3、anddecompositionstatusofcompostTheresultSareasfollows1TemperatureinfluencescompostquailtydirectlyWhenthecomposttemperaturewaskeptwithin5560。Cover3days，thepathogensinthecompostwerekilledAfter10daysoftemperaturewithin55—60

4、。CthequailtyofthecompostbecamestablenemoisturecontentofrawmaterialsandoxygenconcentrationinfluencedaerobiccompostreactionratesTheidealcompostbodymoisturecontentwasbetween4060％andtheidealcompostbodyoxygenconcentrationwas5

5、—15％2DuringcompostingtheabsolutecontentofeverynutrientdroppedThevariationtendencyoftheirrelativecontentareobviouslydifferentNamelythetotalCrelativecontentpresentsthedownwardtrendwiththecompostprocess，thecontentoftotalnit

6、rogenshowsdifferentvariationtendencybasedondifferentpackingmaterialsIncompostingincubationexperimentscertainamountofnitrogentosshasbeenfoundwhichcanbereducedbyadditionofsomeorganicorinorganicadditives，suchasbentonite，sup

7、ePphosphme，maizestrawetcVentilationorpileturningincreasednitrogenloss，amongthemsuperphosphateisbestT1econtentoftotalpotassiumandtotalphosphorusincreasedrespectivelyinvariousdegreeswiththecompostprocess3ThecompostpHvaluei

8、ncreasedatfirst，andthendecreased，andthentendedtoincrease，leadingtoslightalkalinefinallyInthecourseofcomposting，ECvalueshoweddownwardtrendPeroxidaseactivitycorrelatednegativelywithcompostpiletemperatureTocertainextenttheu

9、rineenzymeactivitywaspositivelycorrelatedwithtemperature4Thedecreaseoftotalhumicacid，free—formhumicacidandwatersolublehumicacidofcompostaftercomposting，andtheincreaseoftheratioofhumicacidtoorganiccarbonprovedobvioustrend

10、ofcarbonhumifieationinthecompostcourseIncreaseofHA，F(xiàn)AindicatedthathightemperaturecomposthelpstoproduceHumoacid，andthereforeimprovehumusquality5Thetotalcarbon，C／N，NH4N，watersolublecarbon，andWSC／TNofpilebodyshoweddownwardt

11、rendduringcomposting，whiletheindexes，suchasHA，F(xiàn)A，CEC／TOCandseedgerm／nationpercentageetctendedtiseC／N，NH4N，HA，F(xiàn)A，seedgerminationpercentagecanbechosenasindexestoreflectextentofcompostdecompositionWatersolublecarbon，WSC／TN，

12、andCEC／TOCisgeneralindexesindicatingextentofcompostdecomposition6Bothfurfuraldregandmushroomdregcarlbetakenaspackingmaterialforlivestockmanurecompost，whichcanbemoresuitableforthefactorialproductionoforganicfertilizercomp