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Aero
bicDigestionPro
cesseswithMem
braneThickenin
gisSOS
BryenWoo,PE
OWEAConference2010
12
/13/2010
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2
An
aerobicdigestion
pro
cesswithmem
brane
thickeningisSOS,
Sus
tainableOper
ating
Solution.ThisSO
Smakes
peo
plestressfreeand
hap
py!
Withoutme
mbranethicke
ning
anaerobicd
igestionproce
ss
canbethisS
OS!
SO
S=Sustaina
bleOperatin
gSolution
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8/22/2019 Basics of Aerobic Stabilization 1
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DigestionExpertise
3
WE
FTEC1997-2001
VOLIII1999
WORKSHOP
DIGESTION
AEROBIC Fi
neTuning
theControlled
AerobicDigestion
Process
ClassB
OfMeeting
WhileDigesting
ThickerSludges
TheChallenge
VOLI1997
WORKSHOP
DIGESTION
AEROBIC
CD-ROM
re
cognizedastheindustryleaderinae
robic
dige
stionandthickeningathighsolidsco
ncentrations
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DigestionExpertise
4
Ma
nualofPracticeNo.11OperationofMunicipalWWTP
VolumeIII:
SolidsProcesses
Chapter31:
AerobicDigestion
Author:
ElenaBailey
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DigestionExpertise
5
MO
PNo.85thEd
.,2009Design
ofMunicipal
WWTPs
Volu
meIII:
SolidsProcessingandManagement
Chapter25:Stabilization
Section3:AerobicDig
estion
Author:
MiguelVera
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Me
mbraneThickeningInst
allations
6
Date
Plant
City
State
LiquidProcess
MBT/PAD-K
Jun-04
DundeeWWTP
Dundee
MI
MBR
PAD-K
Jun-04
ArlingtonWWTP
Arlington
WA
SBR
MBT
J
ul-04
TroyWWTP
Troy
MO
MBR
PAD-K
Aug-04
McF
arlandCreekWWTP
ChagrinFalls
OH
MBR
PAD-K
N
ov-04
GnadenhuttenWWTP
Gnadenhutten
OH
MBR
PAD-K
A
pr-05
DelphosWWTP
Delphos
OH
MBR
Stormmaster
A
pr-05
C
ottonwoodWWTP
Manor
TX
MBR
PAD-K
Aug-05
LewesWWTP
Lewes
DE
MBR
MBT
N
ov-05
EastDundeeWWTP
EastDundee
IL
CAS
PAD-K
A
pr-06
Y
akamaINCasino
Toppenish
WA
MBR
PAD-K
M
ay-06
WoodsideSTP
Yaphank
NY
CAS
PAD-K
M
ay-06
StoutsvilleWWTP
Stoutsville
OH
MBR
MBT
Jun-06
NorthLewisbergWWTP
NorthLewisberg
OH
MBR
MBT
J
ul-06
HarvestMonrovia
Hunstville
AL
MBR
MBT
J
ul-06
B
ob'sCreekWWTP
LincolnCounty
MO
MBR
PAD-K
Aug-06
HamdenWWTP
Hamden
OH
MBR
MBT
Aug-06
SheltonWWTP
Shelton
WA
MBR
MBT
Sep-06
LakeofthePinesWWTP
Auburn
CA
MBR
PAD-K
N
ov-06
ConcreteWWTP
Concrete
WA
MBR
PAD-K
D
ec-06
P
rovidenceEstates
O'Fallon
MO
MBR
PAD-K
Feb-07
We
stford-ActonWWTP
Acton
MA
MBR
MBT
A
pr-07
WinlockWWTP
Winlock
WA
MBR
PAD-K
Jun-07
BurwellRoadWWTP
Hunstville
AL
MBR
MBT
Jun-07
HighlandLakeEstatesWWTP
Monroe
NY
MBR
MBT
A
pr-08
AlpineWWTP
Alpine
WY
MBR
PAD-K
J
ul-08
U
nionRomeWWTP
UnionRome
OH
MBR
PAD-K
O
ct-09
C'oeurd'AleneCasino
C'oeurd'Alene
ID
MBR
PAD-K
D
ec-09
CayceWWTP
Cayce
SC
OX
PAD-K
N
ov-10
DavieWWTP
Davie
FL
MBR
PAD-K
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7/10
Ins
tallationsNearOhio(No
rtheastUS)
7
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8/10
Wh
yUseAerobic
DigestionwithMembrane
Thickening?
8
Bene
fitsofMembraneThickening
1.
Improvedthickening
ThickeningofWASwitho
utusingpolyme
r.
-Reduce
dchemicalsand
disposalcost.
ThickeningofWASto3%
solids(5%with
adualstep)inde
pendent
ofsettlin
gcharacteristicsinasinglestep.
Lessslud
gevolumetoha
ndleordispose.
2.
Reducedope
ratorattendance.
NoSet-u
porcleanuptim
e
Noconstantattendance
whilethickening
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8/22/2019 Basics of Aerobic Stabilization 1
9/10
Wh
yUseAerobic
DigestionwithMembrane
Thickening?
9
Bene
fitsofMembraneThickening
3.
ReducedFootprint
Smallertanks+Nochem
icalstorage=Lessconcreteandlessair
requirem
entsresultinginlessenergy/ele
ctricalusage
-Idealfo
rrehabsandsm
allplants.
-Couldu
seexistingoverloadedaerobicd
igesters-SHT
4.
ProducesaH
ighQualityPermeatewhen
usedwithan
AeratedDigester(s)orSHT
Reduces
TotalN(NH3/NO3)andPinthepermeate.
Substantial
releaseofthesenutrient
sinliquidstream
goingbacktothehead
oftheplantcompromise
stheperformanceoftheBNRactivated
sludgep
rocess.
Permeat
ecanbecombin
edwitheffluent
withoutreducin
gquality.
SludgefordisposalhasreducedTotalNaswell.
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8/22/2019 Basics of Aerobic Stabilization 1
10/10
Wh
yUseAerobic
DigestionwithMembrane
Thickening?
10
Bene
fitsofMembraneThickening
Ba
sedon3.0
MGDClassB
AerobicDigestionFacilityDesign
P.A.D-KProcesswillreducesenergycosts
Design
TotalBrakeHP
DemandforBlowe
rs
ConvertEnergy
UsageinKilowatts
AnnualEnergyCos
ts
($0.0
6/KWH)
Decant
333hp
249kW
$131,000
P.A.D-K
113hp
85kW
$45,0
00
Membran
eThickeningPro
cessesreducescapitalcosts
associatedwiththeconstructionofadditionaltanks
Design
%Solids
Required
DesignSRT
(Days)
Requ
ired
Volu
me
(gallons)
Concrete
Requiredto
BuildTanks
(cubicyd)
Concrete
Costs
($600/yd3)
DesignAir
(scfm)
Decant
1.75
60
2,055
,480
1,333
$800,000
8,240
P.A.D-K
3.0
42
699,4
40
638
$385,0
00
2,8
00
