(英)市政固废的卫生填埋与焚烧处理的生命周期分析(2)

HyC22POCP0.398

Itisassumedimpactsignificanceofreferencecon2stituentsbe1.

　　Thepollutanttreatmentwouldbehelpfultofur2therimproveenvironmentalconditionsinbothpro2cesses.Fromcomparisonofthereductionofnegativeenvironmentalconsequences,itisfoundthatthe

ProcessLandfillIncineration

TreatmentNoYesNoYes

EDP/GJ2412.592412.5934.2734.27

GWP/kg660022.35660022.35871253.56870173.56

AP/kg5118.065118.0611028.81470.024

EP/kg1453.32435.151446.83406.79

POCP/kg163.42163.421.581.58

ProcessLandfillIncineration

TreatmentNoYesNoYes

EDP1.01.00.01420.0142

GWP1.01.01.32001.3184

AP1.01.02.15490.0918

EP1.00.29940.99550.2799

POCP1.01.00.00970.0097

Impactfactor

EDPGWPAPEP

EDP11/21/31/9

GWP211/61/8

AP3611/51/3

EP98513

POCP7631/31

POCP1/71/6

λ　　　max=5.31,RI=1.12,CI=0.0775,CR=0.069<0.1

ProcessLandfillIncineration

TreatmentNoYesNoYes

EDP/GJ34.2734.2734.2734.27

GWP/kg480098.97480098.97871253.56870173.56

AP/kg33.7433.7411028.810470.024

EP/kg1058.10039.91941446.83406.79

POCP/kg1.581.581.581.58

?548?

Jun.

2002Trans.NonferrousMet.Soc.China　　　　　　　　　

ProcessLandfillIncineration

TreatmentNoYesNoYes

EDP0.01420.01420.01420.0142

GWP0.72740.72741.32001.3184

AP0.00660.00662.15490.0918

EP0.72800.02740.99550.2799

POCP0.00970.00970.00970.0097

0.49couldbeobtainedoncepollutanttreatmentis

considered.Itisobviousthatoverallpotentialenvi2ronmentalimpactfromthelandfillislowerthanthatfromtheincinerationwithpowergeneration.ThisconclusionistotallyreversedtotheresultsfromaforementionedanalysiswheregenerationinOneofproperForthetwodisposalforMSW,theboundarydeter2minationisfocusedonwhetherthecompensatorypowergenerationshouldbeinvolvedinthelandfillsystem.Oncethismatterismadeclear,thecontro2versyaboutenvironmentalconsequencesfromthein2cinerationandthelandfillbydifferentinvestiga2tors[12]couldbewellexplained.Althoughtherearemanyalternativesforcompensatoryconsiderations,theydonotchangetheconclusionqualitativelyandthechoicemadeinthepresentpaperisnodoubtoneoftheeffectiveways.Inaddition,takingcoalasfuelisalsoproperformostcasesinChina.5　CONCLUSION

LCAandAHPareusedtocomparethepotentialenvironmentalimpactsoflandfillandincinerationwithpowergeneration.Itisshownthatmorenega2tiveenvironmentalconsequenceswouldberesultedfromthelandfillthanfromtheincinerationwithpow2ergenerationifthecompensatoryphaseforpowergenerationweretakenintoaccountinthelandfillsys2tem.Otherwise,theformerwouldbemuchbetterthanthelatterintermsofenvironmentalconsidera2tions.Thefunctionalunitrequiresthesimilarfunc2tionsforcomparisonoftwodifferenttechnologiesforMSWtreatment/disposalinthewholelifecycle.Therefore,thecompensatoryconsiderationofpowergenerationinlandfillsystemgivesagoodbasisforboundarydefinitioninLCAandisofsignificancetootherrelevantstudies.Asforthepollutanttreat2ment,itdoesnotchangetheaforementionedconclu2sion,butalterstheenvironmentalconsequencestocertaindegreeparticularlyfortheincinerationpro2

cess.

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