SAND AND/OR QUARTZ TREATMENT FILTERS

Sand filtering is a wastewater treatment process whereby a liquid flows through a filter made up of a sand bed, usually composed of silica, anthracite, garnet or ilmenite. It is indicated for the removal of suspended solids, such as heavy metals, organic and inorganic compounds, used during both primary and refining treatments. For the massive use of this type of filter Marcante Serbatoi manufactures filters and containers for both industrial and civil use, satisfying every request or production and processing need.

The filter consists of a cylindrical tank with a horizontal or vertical axis suitable for working under pressure. Each product undergoes meticulous quality controls during all stages of processing and respect the provisions of the PED 97/23/EC, of the ASME and of the current regulations. Each item matches specific characteristics suitable to the place of installation, respecting all safety standards. All the materials used come from companies that have certified quality systems.

The structure is made of carbon steel with a type 3.1 certificate of origin. All welded areas are carried out with welding equipment certified by qualified and continuously trained personnel.

Marcante Serbatoi manufactures filters tailored to specific customer requirements, providing a wide range of customized solutions, using the following size and structural data:

• Internal diameter
• Plating height
• Total height
• Plating thickness
• Bottom thickness​

The filters undergo a series of checks in order to ensure product quality.

In fact, quality controls are carried out during all stages of production and processing, such as dimensional tests, welding retaining tests, radiographic and additional non-destructive tests. Depending on customer needs, Marcante Serbatoi is available to perform any other tests they deem necessary.

The filters can only then be completed with suitable coats of paint. Internal and external treatments are carried out based on the content and use of the manufactured filters.

In order to ensure high quality standards, Marcante Serbatoi uses a wide range of certified products for the various paint cycles proposed:

• HI solid type;
• ceramic type;
• paint reinforced with glass flakes.

Each product comes with its relevant safety and use sheet along with the documents showing the measurements carried out on the treatment cycles. Upon request pull-off checks can be carried out along with additional tests in order to guarantee the works.

Sand treatment filter for public plant in San Zeno di Montagna (Verona). 

Tanks designed and manufactured according to EN 13445, in accordance with PED Item 3 PAR.3 in S 275 JR EN 10025 foil. 

Project data: 

temperature 40°C 

press. 4.2 BAR 

Dimensional data: 

External diameter 2200mm 

HF 1800mm 

Single perforated plate

Paint treatments: 

Internal cycle after SA2.5 sandblasting, food epoxy cycle 

Thickness 250 Mic. 

External cycle Sa 2.5 sandblasting, polyurethane cycle Thickness 250mic., Ral. 5012

Sand treatment filter for a plant located in Molinet 

Tanks designed and manufactured according to VSR standard, as per PED Item 3 PAR.3 in S 275 JR EN 10025 foil. 

Project data: 

temperature 40°C 

press. 4.0 BAR 

Dimensional data: 

External diameter 2800mm 

HF 2500mm 

Single perforated plate 

Paint treatments: 

Internal cycle after SA2.5 sandblasting, epoxy food cycle 

Thickness 250 Mic. 

External cycle Sa 2.5 sandblasting, polyurethane cycle Thickness 250mic., Ral. 7035