Veolia Water Solutions & Technologies (VWS) is a water and wastewater treatment specialist operating on a global scale through local teams in over fifty countries. VWS's extensive range of technologies and services, coupled with its design and build capabilities, meet the diverse needs of both municipalities and industry.
Veolia Water Solutions & Technologies
Focus - Granular Media Pressure Filtration
Multimat™ Duo. Two multimedia filters arranged in series are combined with a chemical treatment to produce high quality water.
Quick Guide - Definition
Granular media is contained within a pressure vessel, typically GRP or coated steel. Water enters the top of the vessel and flows downwards through the bed of media, exiting through a collector system at the base. Contaminants are removed by straining and/or adsorption depending on the chosen media. The filters must be periodically backwashed.
Applications
Granular media pressure filters uses granular media to remove contaminants from water.
Depending on the type of filter media used, granular media filtration has a variety of applications including:
- filtration of water after chemical dosing to remove colloidal haze and turbidity
- pre-filtration to protect membrane processes from fouling
- filtration of cooling water to prevent heat exchanger fouling
- filtration of borehole water to remove iron and manganese
- removal of chlorine from water to protect ion exchange resins or membranes
- increasing the pH of acidic water to prevent corrosion
- feed water for drip irrigation systems
VWS Solutions
Filtraflo™/ Filtraflo™As
All Filtraflo™ filters employ the same basic principle that involves a rapid gravitational filtration of raw water through a granular media.
Druck™
Druck™ granular media pressure filters can remove suspended solids, iron, manganese, hydrogen sulfide, chlorine, phenol and organics depending on the chosen media.
Multimat™ I, II & Duo
Multimat™ is a range of double layer, triple layer and activated carbon filters for industrial and municipal applications.
Mangaflo™ / Mangaflo™Plus
Manganese removal from groundwater, surface water or industrial water containing reduced manganese.
Dusenflo™ Gravity Filter
The Dusenflo™ filter offers a unique, economical and highly effective potable water filtration system.
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