How do you treat sludge properly? This question is of critical importance in modern wastewater treatment. On the one hand, disposal is very expensive. On the other hand, sewage sludge is a viable source of energy and nutrients. How energy-efficient or even energy self-sufficient a treatment plant actually depends largely on the quality of sludge digestion.
Our experience in sludge treatment is comprehensive. Sludge thickening, digestion, dewatering and drying are all part of our portfolio. With our proprietary, innovative design concepts, we provide advanced sludge treatment solutions. Our LYSOTHERM® system improves the gas yield and reduces the amount of residue for disposal.
The best-possible sludge digestion enables sewage treatment plants to operate with energy self-sufficiency and in some cases with an energy surplus. This is achievable in combination with co-substrate utilisation, with energy-related improvements in the mechanical and aerobic biological wastewater treatment or with the additional use of renewable energies, such as wind power and photovoltaics. We would be happy to work with you on a tailor-made system design.
Our expertise in sludge treatment
Sludge stabilisation
- Aerobic sludge stabilisation
- Sludge digestion, in particular: digester installation and sludge tank equipment as well as digested sludge recirculation with a mixer or via gas injection
Sludge thickening/ dewatering
- Static and mechanical thickening/dewatering, including centrifuges, belt thickener, drum screens
Sludge drying
- Thin Film Dryer
- Disc dryer
- Drum dryer
- Low-temperature belt dryer ELODRY®
Nutrient recovery
- Phosphate recovery from digester sludge as Magnesium Ammonium Phosphate (struvite) with ELOPHOS®
Sludge hydrolysis
- Proprietary thermal pressure hydrolysis system LYSOTHERM® for excess sludge disintegraton.
Sludge mineralisation
- Sludge mineralisation – partner of PYREG GmbH
Our Products for Sludge Treatment
ELOVAC®
Vacuum degassing for digested sludge with or without simultaneous phosphorus precipitation
ELODRY®
Energy-efficient low temperature dryer for sewage sludge
PYREG®
Removes micro pollutants from sewage sludge by phosphorus recovery, additional optional solution for ELODRY®
LYSOTHERM®
Thermal Hydrolysis Process (THP) with depressurized thermal oil system
Selected References/Projects
Alvim RA-M4 New gas plant
Client
Sarpsborg Municipality
Project manager
Iver Bakkeli
Contract value
25 MNOK
Contract period
2022-ongoing.
Description
Described contract for the delivery of gas flare, gas tanks, gas pipeline, and technical installations (water and sewage pipes, pipe bridge, fan house, electrical/automation).
Innbygda RA - Biogas plant
Client
Trysil municipality
Project manager
Lars Buer
Contract value
27 MNOK
Contract period
2022-ongoing.
Description
Design and build contract for the delivery of a sludge treatment and biogas plant for Innbygda WWTP in Trysil. The plant is delivered in collaboration with Antec AS and their patented technology.
