A COMPANY OF THE LAHMEYER GROUP
With the trusted expertise of
Anaerobic Technologies are a keystone
in changing dead end water treatment
concepts into sustainable recycling
plants by utilizing the waters’ energetic
value.
An UASB (upflow anaerobic sludge
blanket) or EGSB (expanded granular
sludge bed) system is a continuously
operated process, comprising a high
Shaping our world
Anaerobic Process Water Treatment: UASB/EGSB
∙ Pressure-less design
∙ Energy recovery
∙ Minimized plant footprint
∙ Carbon footprint reduction
∙ Relief of subsequent aerobic water
treatment stages
∙ Reduction of chemicals demand
∙ Proven technology
∙ High level of automation /
low operation demand
CHARACTERISTICS
Input
>3000mg COD/l
Efficiency
>85%
HRT
4...12hours
TSS
<500mg/l
BR
12...25kg COD/(m3*d)
anaerobic tank reactor with pelletized
biomass, which performs the
conversion of the water’s COD load
into methane-rich biogas.
Inside the tank phase separators are
installed, which separate the biogas
from the liquid phase for further
utilization, allowing the system to be
operated pressure-less.
© Tractebel GKW GmbH • 01-2020tractebel-engie.com • gkw-consult.com
PROCESS IN BRIEF
Tractebel GKW GmbH
Augustaanlage 67, DE-68165 Mannheim
T +49 621 41077-0, F +49 621 41077-302
CONTACTS
www. gkw-consult.com/en/contacts
GKW Consult India
PS Srijan Corporate Park, Tower 1
Unit no 1304 & 1305, 13th Floor
Block EP & GP, Sector V, Salt Lake
Kolkata 700091, India
T +91 33 40176800/31, F +91 33 40176827
Colombia
T +57 4 312 11 81, F +57 4 312 34 47
Morocco
T +212 537 264780, F +212 537 264781
Peru
T +51 1 6409556
Tunisia
T +216 71 783 139, F +216 71 783 158
Bulgaria
T +359 2 954 53 21, F +359 888 233 341
Burkina Faso
T +226 25 374740 / F +226 25 375655
The UASB/EGSB tank is fed with the process water at the bottom at a defined flow rate, which allows the pelletized biomass
inside the tank to float. While the process water passes the tank, the biomass converts the water’s COD load into biogas.
In the UASB process the biogas is collected at special, integrated phase separators and provided for further utilization.
The treated water is removed at the top of the tank. Compared to other AD systems, this design allows the system to be
operated without any pressure.
PURPOSE
• Anaerobic treatment of process water
• Biogas production
• Sustainable energy recovery
• Relief of existing process water
treatment plant
• Improvement of discharge quality
CUSTOMER BENEFITS
• Biogas
• Electricity generation
• Heat recovery
• Natural gas substitution
• Minimal staff requirements
• Minimal area requirements
• Cost savings / OPEX reduction
TYPICAL FIELDS OF APPLICATION
Food &
Beverage
Healthcare,
Cosmetics,
Pharma
Pulp &
Paper