Sand filtration
Nomado offers drinking water production filtration units.
Filtration may be conducted using gravity in open bed systems or under pressure in closed filter systems.
Filtration may be conducted using gravity in open bed systems or under pressure in closed filter systems.
Our plug & play offer
Commissioning made easy and maintenance taken into account from the design phase.
Containerized solutions
Suitable for the most extreme conditions, this is a first-class solution for a robust, lasting and economical unit.
SKID solutions
Compact, easily transportable and self-sufficient unit, the Skid is compatible with all drinking water production technologies.
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The solutions that we offer adjust extremely well to variations in the quality of the water to be treated and the quantity of the load that it contains. Our treatment units are integrated into sea containers or mounted on SKIDs thereby reducing production times, installation times on site and civil engineering costs.
Sheet metal work and welding of the hydraulic structures are performed directly inside the container. Waterproofing is ensured by a seal made of special coatings that constitutes a perfectly monolithic block. It prevents water from coming into contact with the structures. The Coatings’ properties are always chosen in accordance with the project’s specifics (Health compliance certificate, WRAS, aggressiveness of reagents or water, etc.).
Sheet metal work and welding of the hydraulic structures are performed directly inside the container. Waterproofing is ensured by a seal made of special coatings that constitutes a perfectly monolithic block. It prevents water from coming into contact with the structures. The Coatings’ properties are always chosen in accordance with the project’s specifics (Health compliance certificate, WRAS, aggressiveness of reagents or water, etc.).
Applications
Whether in France or internationally, our water treatment experts are available to help you define the treatment unit that will best suits your needs.
Construction of an iron removal unit
Drinking water
Pressure boosting and water treatment unit
Process water – Agri-food industry
Treating pharmaceutical effluent using reverse osmosis
Industrial effluent
Treating concrete laitance at a major international worksite
Worksite effluent
The advantages of Nomado’s solutions
Cost benefits
- Cost-effective alternative to civil engineering infrastructures and
buried facilities - Systems that can be reused and relocated
(worksite bungalows, industrial reorganisation, end of concession) - Portable investment
- Possibility to rent, buy back or lease with option to purchase
- In-situ production or treatment
Operational and environmental benefits
- Multimodal transportation (rail, road, sea, air…)
- Simple, fast installation and commissioning
- Maintenance by our technicians possible
- Easy, rapid dismantling upon project completion
- Reduction in carbon footprint
- Worksite hazards reduced
Quality and HSE
- Treatment process adaptable to discharge standards
- Design in accordance with country standards and regulations
- Pre-built and factory tested
- Anticipation of the possibility of deteriorated operating conditions (scenario analysis)
- Targeted oversizing of critical equipment (pumps, motors, etc.)
- Specific job site conditions taken into account (heat, sand, sea, etc.)
Versatile and adaptable
- “Plug&play” design
- Possibility of adding a unit in the event of a variation in load or flow rate
- Can be integrated into an existing facility
Understanding how filtration works
Treatment
Even though raw water has been pre-treated, most of the time it still contains suspended solids.
To efficiently remove these remaining particles, sand filtration is frequently utilized. Filtration may be done by using gravity in an open bed system or under pressure in closed filter systems.
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Sand filtration is suitable for drinking water production when the fresh water source contains mainly suspended solids and organic matter. Sand filtration can also be used as a pre-treatment step in the case of the origin of the pollution is dissolved chemicals or before additional treatment stages (activated charcoal, ultrafiltration, reverse osmosis, etc.). It can also be combined with specific reagents (dual media filters, iron removal, manganese removal, etc.)
Process
Treated water is collected via nozzles at the bottom on the filter.
Filter clogging is monitored by pressure or level transmitters that
control backwash cleaning cycles that remove solids which periodically accumulate. Wash water is treated separately.
Filter clogging is monitored by pressure or level transmitters that
control backwash cleaning cycles that remove solids which periodically accumulate. Wash water is treated separately.
Tell us about your project
Nomado is specialized in the design and construction of compact water treatment units. Our solutions are integrated into sea containers, skid-mounted or mounted in portable cases.
CONTACT US
NOMADO
21, Boulevard du Capitaine Gèze
13014 MARSEILLE – FRANCE
+33 (0)4 84 89 52 42
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