Dewatering stabilized solids (high P) Minimal Pretreatmen t (grit removal, screens) Influent Effluent Anaerobic MBR methane O 2 sludge (8-10% P) stabilized sludge Anoxic Anaerobic Two-stage MBR First stage: convert organics into methane Objectives: recover more energy from the organics, use less O 2 produce less sludge, first stage generates carbon needed for N and P removal, avoid chemicals for disinfection. Second stage: remove nutrients membranes membranes
Dewatering stabilized solids (high P) Minimal Pretreatment (grit removal, screens) Influent Effluent Anaerobic MBR methane O2O2 sludge (8-10% P) stabilized.
Dec 18, 2015
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Dewatering
stabilizedsolids (high P)
Minimal Pretreatment(grit removal,screens)
InfluentEffluentAnaerobic
MBR
methane
O2
sludge (8-10% P)
stabilized sludge
AnoxicAnaerobic
Two-stage MBR
First stage:convert organics into methane
Objectives: recover more energy from the organics, use less O2 produce less sludge, first stage generates carbon needed for N and P removal, avoid chemicals for disinfection.
Second stage:remove nutrients
membranesmembranes
First stageconverts organics into methane
Second stage removes nutrients
Laboratory setup
Dept. Civil & Environmental Engineering, Stanford University
Chok Hang Joanne YeungSU, PhD student
Daniel YehUniv. S. Florida, Asst Prof
Craig CriddleSU, Assoc. Prof
Bob HickeyEcovation, VP
MBR Project Team
Charles Hardy SU, MS student
(graduated)
Bob BrownSU Exp Lab
Young LeeSU, Postdoc
Philip WongSU, PhD student
George WellsSU, PhD student
Alicia NgSU, undergrad
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