Industrial high rated anaerobic waste (water) treatment Industrial high rated anaerobic waste (water) treatment

Daniël Piet

(The Netherlands)

2007

Contents

Introduction Biothane Group

Aerobic vs. Anaerobic

Anaerobic technologies Biothane® UASB Biobed® EGSB

Practical example + some references

Biothane group

BiothaneBiothane CorporationCorporationCamden NJCamden NJ

USAUSA

BiothaneBiothane CorporationCorporationCamden NJCamden NJ

USAUSA

BiothaneBiothane SystemsSystems InternationalInternational

The NetherlandsThe Netherlands

BiothaneBiothane SystemsSystems InternationalInternational

The NetherlandsThe Netherlands

BiothaneBiothane SystemsSystemsUnited KingdomUnited Kingdom

BiothaneBiothane SystemsSystemsUnited KingdomUnited Kingdom

BiothaneBiothane SystemsSystemsChinaChina

ShanghaiShanghai

BiothaneBiothane SystemsSystemsChinaChina

ShanghaiShanghai

BiothaneBiothane AsiaAsiaPacificPacific

IndonesiaIndonesia

BiothaneBiothane AsiaAsiaPacificPacific

IndonesiaIndonesia

BiothaneBiothane SystemsSystemsRussiaRussia

BiothaneBiothane SystemsSystemsRussiaRussia

To date: > 475 references in > 30 countries

Anaerobic vs. Aerobic

COD value vs. effluent charge

R -

R 100,000.00

R 200,000.00

R 300,000.00

R 400,000.00

R 500,000.00

R 600,000.00

0 2000 4000 6000 8000 10000 12000

Final COD (mg/l)

Mon

thly

eff

luen

t cha

rge

Figures for 50 m³/h industrial eff luent mixed w ith 2 m³/h domestic site eff luent; assumes other pollutant parameters w ithin limits.

Aerobic (classic)

High Air input 0,7-1 kWh/kg COD

High 0,2-0,6 kg/kg COD Disposal costs

Low rate Big footprint

Energy consumption

Sludge production

Surface area

Anaerobic

Low Biogas production 0,07-0,1 kWh/kg COD

Low 0,03-0,05 kg/kg COD Value

High rate Compact design

Anaerobic vs. aerobic

Full-scale Anaerobic reactorsbased on granular sludge technology

Influent

Sludge bed

Settler

EffluentBiogas

Sludge blanket

2 2

1 1

3 32

1. Sludge/biomass inlet2. Gas baffle plates3. Return settled sludge

Sludge bed

Effluent

2

1

1. Granular sludge/water2. Settled granular sludge

Biogas

Influent

BBiothane® UASB BBiobed® EGSB

Granular sludge (1-3 mm)

Full-scale Biothane UASB

Full-scale Biobed EGSB

Biobed® MP

Example project

Flow: 1000 m3/d COD: 4000 ppm 4000 kg COD/d

No specific requirements for discharge (Bulk COD removal (80%), < effluent charge)

Biological treatment system

Aerobic (activated sludge, MBBR, MBR, etc.)

Anaerobic (UASB, EGSB, Biobulk or lagoon type)

Results*

Anaerobic Aerobic

Energy consumption 224 kWh/d 2240 kWh/d

Sludge production 96 kg/d 640 kg/d(Euro!) (Costs!)

Biogas production 1120 Nm3/day -(ca. 340 kJ/s, nett)

Chemical dosing lime, nutrients, -

* Based on 80% COD removal, general figures

Loading rates (kg COD/m3) Aerobic vs. anaerobic

Aerobic: Volume *

Activated sludge 0.5 – 1 kgCOD/m3 3200 m3

MBBR 2 – 3 kgCOD/m3 1070 m3

MBR 3 – 4 kgCOD/m3 800 m3

Anaerobic:

Biobulk/Lagoon 3 – 5 kgCOD/m3 640 m3

UASB 8 – 12 kgCOD/m3 270 m3

EGSB 15 – 25 kgCOD/m3 130 m3

* Based on 80% COD removal, general figures

Anaerobic limitations

Applicability Anaerobic Technology Organic components anaerobic biodegradable Bulk COD removal step No N and P removal Minimum required temperature is 25 Degree Celsius Minimum COD required is approx. 1200 ppm Minimum COD load is approx. 500 - 1000 kg/day

Aerobic vs. Anaerobic

Parameter Aerobic Anaerobic

Achieves <30 mg/l Yes – needs tertiary support

No – needs aerobic & tertiary

Can be Shutdown No Yes – for extended periods

Sludge Generation High Low

Energy Usage High Low

Land Usage High Low

Useable Biogas Production

No Yes

Sari Husada-Numico (Indonesië) Milk powder and baby food

DAF for pre-treatment

Biobulk digester for DAF float (+ aerobic surplus sludge)

“Low loaded” UASB 650 m³

UASB 650 m3 Biobulk 500 m3

Modular plantFruit juice application

Döhler Euro Citrus (Oosterhout, NL)Full-scale plant: the Biobed® MP

Typical process configurationPotato processing Industry

UASB reactor

Pre Settler

Screen

Buffertank

Conditioning tank

Final clarifier

Aerobic

Murray Goldburn (Australia)Milk

Combined pre-settler / Flotation (DAF) for “complete” removal of non-soluble substances

Primary sludge/ float to waste EGSB 350 m³

Buffertank Conditionings tank Biobed EGSB 350 m³

DAF

Biothane®UASBFritolay Kashira

Anheuser-BuschColumbus, Ohio

Cerveceria Nacional DominicanaDominican Republic

Anaerobic & Aerobic Treatment

One EGSB Reactor - Expansion Underway

Thank you for your attention!!