ARGUS ® AeRobic Granular Upgrade System Dipl. Ing. V. Matić.
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Transcript of ARGUS ® AeRobic Granular Upgrade System Dipl. Ing. V. Matić.
ARGUSARGUS®®
AAeeRRobic obic GGranular ranular UUpgrade pgrade SSystemystem
Dipl. Ing. Dipl. Ing. VV. . MatićMatić
Contents
Immediate cause for ARGUS application Immediate cause for ARGUS application Background of ARGUS processBackground of ARGUS process Application of ARGUS in WWTP OLAZApplication of ARGUS in WWTP OLAZ Performance Updates of ARGUS processPerformance Updates of ARGUS process
Immediate cause for ARGUS Immediate cause for ARGUS applicationapplication
WWTP OLAZ performance: Sludge volume index >250-300ml/g, washout of MLSS Nitrogen removal, external C-source COD recalcitrants
Secondary benefits: Sensitivity to toxically composition of leachate water reduced Sludge production reduction, sludge costs
ARGUS backgrounds
Granulation phenomenonGranulation phenomenon Aerobic granulationAerobic granulation ARGUS nitrogen removal process ARGUS nitrogen removal process Benefits of ARGUS process Benefits of ARGUS process ARGUS ApplicationARGUS Application
ARGUS backgrounds: Granulation Phenomenon
«Spontaneous conglomerate forming phenomenon» is related «Spontaneous conglomerate forming phenomenon» is related to the anaerobic wastewater treatmentto the anaerobic wastewater treatment
ARGUS backgrounds:
Aerobic Granulation Patented procedure: aerobic granules with designed composition instead of spontaneously aerobic granules with designed composition instead of spontaneously
developed activated sludge flocksdeveloped activated sludge flocks Technology proven in SBR and CSTR, on synthetic medium, industrial wastewater, sludge
treatment reject water Today attention is given to nitrifying bacteria granulation, which is related to the creation of Today attention is given to nitrifying bacteria granulation, which is related to the creation of
micro-colonies (4 – 16 bacterial cells)micro-colonies (4 – 16 bacterial cells) Other possibilities are e.g. for Other possibilities are e.g. for biodegradation of biodegradation of difficult COD like formaldehyde, phenols, difficult COD like formaldehyde, phenols,
etc.etc.
ARGUS:
Nitrogen removal Successful biological removal of Nitrogen with Successful biological removal of Nitrogen with
activated sludge occurs only in ULAS - activated sludge occurs only in ULAS - UUltra ltra LLow-ow-loaded loaded AActivated ctivated SSludge system. ludge system.
In comparison to ULAS, ARGUS is medium to high In comparison to ULAS, ARGUS is medium to high loaded suspended biomass wastewater treatment loaded suspended biomass wastewater treatment system which can successfully remove nitrogen in system which can successfully remove nitrogen in the main stream. This is realized through:the main stream. This is realized through:
enhanced bio-augmentation (high % of nitrifiers) enhanced bio-augmentation (high % of nitrifiers)
reinforced by aerobic granulationreinforced by aerobic granulation
Aerobic dominantly heterotrophic Aerobic dominantly heterotrophic sludge granulessludge granules
Benefits/Disadvantages/ Risks and
field of application of ARGUS Benefits: Settling properties Nitrification rates Sludge production Resistance to toxicity
Disadvantages/Risks: Relatively long start period Granules disintegration:
By long term low loading of WWTP By significant absence of main-
designed component e.g. N
Field of application:Field of application: PharmaceuticalPharmaceutical ChemicalChemical Food and BeverageFood and Beverage Leachate wastewaterLeachate wastewater Sludge treatment reject Sludge treatment reject
waterwater
Wastewater treatment plant OLAZ, NiuewedorpProblems: frequent sludge wash out
(SVI=>250-300 ml/g) high COD concentration in
effluent high nitrogen-nitrate
concentration in effluent significant addition of external C
– source sludge disposal costs
Upgrade of existing landfill wastewater Upgrade of existing landfill wastewater treatment plant treatment plant OLAZ Niuewedorp, The NetherlandsOLAZ Niuewedorp, The Netherlands
Sl7
Case WWTP OLAZ:
Towards full-scale project: lab research & selection go-no go selected aerobic granular
biomass cultivated and scaled up in propagators P1 and P2,
cultivated granular biomass transfered from P2 to the full-scale plant
full-scale plant scaling up via west street – P3
full-scale process testing and optimization
Figure 2.
P1 propagator 5m3
Figure 3.
P2 propagator 65m3
Sl8
Sl9
Ugrade of existing landfill wastewater Ugrade of existing landfill wastewater treatment plant treatment plant OLAZ Niuewedorp, The NetherlandsOLAZ Niuewedorp, The Netherlands
WWTP OLAZ: Laboratory tests
Go No Go Lab research Acceleration of ammonium oxidation; (between 1,4 -2
faster); Lowering methanol dosage (goal: reduction 30 - 50%); Improvement of sludge sedimentation: SVI <150 ml/g; Lowering sludge production (d.d.15-05-03 from ca. 97 kg
MLSS - per day; reduction 30 - 50%). Improvement of COD removal between 20 en 50 %
(depends on recalcitrant fraction), Total improvement ca. 20-50%; Increased tolerance on inhibitory effects of toxic substances. Energy reduction (less O2 for COD oxidation).
WWTP OLAZ: ARGUS Process Diagram
Sl3
WWTP OLAZ:Influent-Effluent
Average INFLUENT
flow m3/h 7,87
COD mg O2/l 2034
N-tot mg N/l 1055
NH4-N mg N/l 858
P-tot mg P/l 12,7
Average EFFLUENT
flow m3/hWest 5,04East 2,83
COD mg O2/l 843
N-tot mg N/l 115
NH4-N mg N/l 0,0
NO3-N mg N/l 78,1
MLSS concentration in reactor: activated sludge 2,79 g/l ARGUS biomass 2,47 g/l
Efficiency: COD 59 % (recalcitrant fraction of COD is high) N-tot 89 % (remaining: organic N and N-N03) N-NH4 100 %
WWTP OLAZ:Specific daily COD load
S PECIFIC DAILY COD LOAD
0,00
0,01
0,020,03
0,04
0,05
0,060,07
0,08
0,09
0,100,11
0,12
0,13
DATE
COD
load
(kg C
OD/k
g MLS
S*da
y)
WEST
EAST
WWTP OLAZ:
Specific daily N-tot load
S PECIFIC DAILY Ntot LOAD
0,00
0,01
0,02
0,03
0,04
0,05
0,06
0,07
DATE
Nto
t lo
ad (
kg
Nto
t/k
g M
LS
S*d
ay)
WEST
EAST
WWTP OLAZ:
Specific daily N-NH4 load
S PECIFIC DAILY NH4-N LOAD
0,00
0,01
0,02
0,03
0,04
0,05
0,06
DATE
NH
4-N
load
(k
g N
H4-
N/k
g M
LS
S*d
ay)
WEST
EAST
WWTP OLAZ:Specific MeOH consumption per Ntot removed
(ltr MeOH/kg Ntot removed)SPECIFIC MeOH CONSUMPTION PER kg Ntot REMOVED
0,00
0,50
1,00
1,50
2,00
2,50
3,00
3,50
4,00
4,50
31
.5.0
5.
2.6
.05
.
7.6
.05
.
14
.6.0
5.
16
.6.0
5.
21
.6.0
5.
23
.6.0
5.
27
.6.0
5.
30
.6.0
5.
5.7
.05
.
7.7
.05
.
14
.7.0
5.
19
.7.0
5.
21
.7.0
5.
26
.7.0
5.
18
.8.0
5.
23
.8.0
5.
25
.8.0
5.
1.9
.05
.
5.9
.05
.
8.9
.05
.
12
.9.0
5.
20
.9.0
5.
DATE
ltr
MeO
H/k
g N
tot
rem
ov
ed
WEST
EAST
WWTP OLAZ:Benefits ARGUS application
Savings per year methanol Sludge disposal cost Energy savings New capacity
Maximum Minimum 18.000 5000 Euro 20.000 9000 Euro 20.000 ------ Euro -------- 20%