Thermal Hydrolysis

A complete sludge treatment reduction process which combines high pressure and temperature.

A complete sludge treatment reduction process which combines high pressure and temperature.
Overview

Thermal hydrolysis achieves enhanced treated sludge and improves the final sludge cake dryness. The treated sludge can then be recovered for agricultural use. The increased biogas produced by the anaerobic digestion can be used for producing green electricity or can be injected after treatment in the gas grid.

What is Thermal Hydrolysis?

The thermal hydrolysis process (THP) makes biosolid waste material or sludge more biodegradable, improving digestibility and the efficiency of subsequent sludge treatment processes. The thickened sludge is heated up to between 150 and 165 degrees Celsius, at a pressure of around seven bars. The pressure is then rapidly released causing cells in the sludge to rupture, making it more digestible to microbes.

Thermal Hydrolysis Plant

A thermal hydrolysis plant, such as the Veolia Bio Thelys system, processes all types of organic municipal and industrial sludge. The quality of the sludge is improved, the volume is reduced and biogas production from digestion is increased. The plant process breaks down the organic matter in the sludge making it more digestible for the microbes used in the anaerobic digester. Biogas derived from the digester can be used for renewable, green energy and the drier sludge cake can be recovered for agricultural use.

Benefits of Thermal Hydrolysis

Thermal hydrolysis provides many wastewater treatment benefits:

  • The resulting sludge cake presents lower odour levels
  • Biosolids can be used as an effective and low-cost fertilizer
  • Enhanced biogas production can be used for electricity production or grid injection
  • The reduced biosolid mass and volume decreases the cost of residuals management

 

 

Water Treatment Products

We have a complete portfolio of water treatment products and services to help you achieve a value-for-money solution alongside reliability, expertise and outstanding support.

Thermal hydrolysis and anaerobic digestion for sludge reduction and to increase odourless biogas production.

Innovative continuous sludge-reduction solution that combines thermal hydrolysis and anaerobic digestion.

Water Treatment Applications

We design and manage innovative solutions for a wide range of water and wastewater treatment applications.

Environmentally friendly biodigestion that creates energy from waste.

Treatments for sludge reuse/disposal to remove water, reduce volume and conserve recovery potential.

Markets

Our teams of industry experts work with you to supply the water technologies and services you need to overcome challenges in your market.

Delivering compliant process and waste to recovery water for pharmaceutical/cosmetic needs.

Solutions to design, build, maintain and upgrade municipal water and wastewater treatment facilities.

Delivering ingredient water and waste to resource services in the food and beverage industry.

Water treatment for the automotive industry to ensure business continuity and operational control.

Contact an Expert
Please complete all fields
At Veolia Water Technologies we have exciting offers and news about our products and services that we hope you'd like to hear about. We will use your information to predict what you might be interested in. We will treat your data with respect and you can find details in our privacy policy.
Don't forget, you can always change your contact preferences at anytime by using the unsubscribe links you will find on all of our emails.