Veolia Water Solutions & Technologies offers innovative solutions for treating water in compliance with international and local standards.
Drinking Water
These standards define in particular the maximum acceptable limits for certain harmful substances that may be present in water.
Processes and Technological Solutions
Fine Screening |
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Clarification |
Multiflo™ lamella settler |
Actiflo™ and Actiflo™ Package Plant: ballasted high-rate clarification | |
Media Filtration |
Double and Triple layer Multimedia filters up to 100 m3/hr in standard versions |
Filtration Solutions: Opacarb™, Opafer™, Opaflo™ | |
Filtraflo™: gravitational filtration | |
Membrane filtration |
Ultrafiltration / Microfiltration / Nanofiltration / Reverse Osmosis |
Softening |
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Catalytic decarbonation |
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Reverse Osmosis |
Reverse Osmosis solutions |
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| Specific Treatments | |
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Arsenic Removal |
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Heavy Metal Removal |
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Water Treatment Chemicals (WTC) |
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| Disinfection |
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Chlorination |
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U. V. treatment |
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Ozone disinfection |
Ozone disinfection solutions |
| Desalination |
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Membrane technologies |
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Reverse Osmosis |
Reverse Osmosis desalination units |
Thermal technologies |
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Multi-Stage Flash distillation |
SIDEM desalination units |
Download the Clay Lane membrane case study
Screening and straining
These two terms refer to the same function - that is of water passing through small bars or small holes in order to retain any matter whose size is greater than the area the water is passing through ...
Clarification
Clarification is a process whereby liquid is separated from solid matter. Solids settle due to the pull of gravity. The clarification stage is usually preceded by coagulation and flocculation ...
Filtration media (Drinking water)
Water clarification is an essential stage in the treatment process. Its management is particularly important nowadays given the latest requirements concerning the removal of parasitic micro-organisms such as Cryptosporidium and Giardia.
Membrane filtration, microfiltration, ultrafiltration, reverse osmosis
The growing importance of membranes in the water treatment process is due to various factors ...
Softening
The high water hardness levels found in some water pose practical problems for both domestic and industrial customers.
Arsenic removal
Arsenic occurs naturally in water in two forms, as arsenate (As V) and arsenite (As III)...
Heavy metal removal
Industry has often favoured sites close to rivers for three reasons: transportation of raw materials, water supply for use in cooling systems, disposal of effluents...
Chlorination
Chlorine is mainly used in the disinfection process in the following forms : chlorine gas Cl2 stored under pressure in liquid phase (bottles and tanks), (liquid) sodium hypochlorite NaOCI, (solid) calcium hypochlorite Ca (CIO)2, 2H20.
UV Treatment
The ultraviolet rays technique - whose anti-bacterial properties have been known for many years ...
Ozone
Ozone, whose chemical formula is O3, is a gas which is naturally found in the upper most layers of the atmosphere, where it is created from oxygen due to the effect of ultraviolet rays ...