For Veolia Water Solutions & Technologies the development and implementation of environmentally friendly solutions is very important. We are able to provide an unrivalled combination of capabilities in the UK market for the treatment of sludge.
Biosolids / Sludge Treatment
Processes and Technological Solutions
| Mechanical and Chemical Treatment | |
|---|---|
Thickening |
AF-Table™: pre-dewatering gravity table |
Gravi-Tek™: continuous mechanical thickener | |
Dewatering |
AF-Belt™: twin wire press |
Fil-TekTM (Edwards & Jones): filter press | |
Willett Pump: sludge transfer | |
AF-Press™: screw press | |
Dri-Belt™: belt press | |
Drying |
Inos™: dewatering and mechanical drying at once |
Chemical stabilization |
|
| Biological Treatment | |
Thermal hydrolysis combined with biological treatment |
|
Greenhouse solar bio-drying |
|
Sludge digestion |
|
| Thermal Treatments | |
Incineration |
|
Hydro Thermal Oxidation (H. T. O.) |
|
Thermal drying (low temperature) |
|
Inos™: dewatering and mechanical drying at once | |
| |
| Odour Treatment | |
Analysis & measurement |
|
Download the PDF
Sludge Brochure
for the UK market
Sludge - Physical-chemical treatment
Liming entails obtaining and maintaining a pH greater than 12 for several months. The lime dosage in the form of slaked lime varies from 20 to 50% depending on sludge type ...
Sludge - Biological treatment systems
Biological stabilization techniques for sludge basically consist of slowing down or even stopping the putrid fermentation that leads to odor pollution.
Sludge - Thermal treatment
The choice of an end use for the sludge is usually made by taking into account the local, regional and economic context ...
Sludge - Treating and eliminating
Multi-process solutions help to achieve an optimum cost/safety ratio for each municipal authority...
Severn Trent - 1996
Coleshill Incinerator
VWS supplied two fluidised bed incinerators to replace the existing multiple hearth units to handle 40,000 tonnes a year of sludge.
Seine-Centre (France)
One of the biggest French civil engineering projects, treating Paris' sewage since 1998 (1 000 000 P.E.). Its "multi-process" design combines land application and incineration (Pyrofluid™) for the safe disposal of sludge.
BUDAPEST (HUNGARY)
Complete renovation of the biggest sewage treatment plant in Eastern Europe (1 000 000 P.E.). Extension of the sludge treatment line and biological removal of odours using Alizair™.