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The two phase anaerobic digestion process: sludge stabilization and pathogens reduction
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2000
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Sewage Sludge TreatmentEngineeringLand ApplicationBiological Waste TreatmentMunicipal WastewaterAnaerobic DigestionWastewater TreatmentBioremediationBiochemical EngineeringPathogens ReductionMicrobial EcologyWater TreatmentEnvironmental MicrobiologyEpa 40Wastewater ManagementSludge StabilizationWaste ManagementEnvironmental EngineeringPretreatmentEnvironmental RemediationMicrobiologyMedicineMicrobiological Degradation
Regulations for land application of wastewater sludges require the performing of treatment with a high efficiency on pathogens reduction. a reduction of 61% of the Volatile Solids content of the sludge, a reduction of fecal coliform, polio virus and Ascaris egg of 5.5, 4.0 and 2.6 respectively are achieved with a thermmophilic/mesophilic Two Phase Anaerobic Digestion process. According to the EPA 40 CFR 503 regulation, the process produces Class A biosolids and could be recommended as a Process to Further Reduce Pathogens.