Anaerobic Treatment
Features and applications
Anaerobic biological processes can be used to treat industrial wastewaters (food and beverage, pulp and paper, and chemical industries) or to stabilise organic sludge.
The main technical features:
- Minimal sludge production
- Limited energy consumption compared to aerobic systems
- Organic contaminants transformed into "Green energy" (Biogas)
- Operating temperature of between 20-35˚C : hence a low value energy source can be employed for heating.
- Very small footprint: high loads, up to 30 kg of COD/m3 per reactor per day compared to a maximum of 4 kg/m3 for aerobic systems.
- Efficient removal of organic matter (up to 90%)
- Low nutrient needs
The anaerobic treatment concept
Anaerobic micro-organisms (specific to oxygen free conditions) are selected for their ability to degrade organic matter present in industrial effluents. More precisely, organic pollutants are converted into biogas (methane + carbon dioxide) and a small amount of biosolids.
The energy rich biogas can then be used in the plant process (for boiler-feed and in generators) to produce "green" electricity and heat.
Veolia Water Solutions & Technologies is a key partner for industries producing effluents with high organic loadings. It has been designing and building anaerobic treatment plants for over 25 years.
Veolia Water Solutions & Technologies is a key partner for industries producing effluents with high organic loadings. It has been designing and building anaerobic treatment plants for over 25 years.
A long track record of relevant proven experience has been built up over many years through multiple international references in the food and beverage, pulp and paper and chemical markets.
For information on VWS solutions visit the Anaerobic Treatment Solutions minisite.