wastewater treatment & methane.ppt · water trom primary clarifier with dissolved organic...
TRANSCRIPT
Microbiology of waste waterMicrobiology of waste water treatment and methane
production
ContentWaste water treatment
N- and P-removalN and P removalMethanogenesis
Thermodynamics of fermentationsGlobal methane productionGlobal methane production
Water qualityWater quality
TOCTotal Organic CarbonTotal Organic Carbon
CODChemical Oxygen DemandChemical Oxygen Demand
BODBi h i l O D dBiochemical Oxygen Demand
Nernst equation
aA + bB cC + dDaA + bB cC + dD
∆G’ = ∆Gº’ + RT ln (C)C (D)d/(A)a(B)b( ) ( ) ( ) ( )
∆G’ = ∆Gº’ + 5.7 log (C)C (D)d/(A)a(B)b
Do not include H2O or H+
(they are constants under standard conditions)Gases can be expressed in partial pressures (atm)