ARGUS ® AeRobic Granular Upgrade System Dipl. Ing. V. Matić.

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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

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

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

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

0,020,03

0,060,07

0,100,11

WWTP OLAZ:

Specific daily N-tot load

S PECIFIC DAILY Ntot LOAD

WWTP OLAZ:

Specific daily N-NH4 load

S PECIFIC DAILY NH4-N LOAD

WWTP OLAZ:Specific MeOH consumption per Ntot removed

(ltr MeOH/kg Ntot removed)SPECIFIC MeOH CONSUMPTION PER kg Ntot REMOVED

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%

ARGUS ® AeRobic Granular Upgrade System Dipl. Ing. V. Matić.

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