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Sand separator – SP

Efficient separation of sand and heavy particles from wastewater Pre-treatment

Sand separation is essential at municipal wastewater treatment plants to protect the mechanical equipment of the entire plant. It also helps prevent the formation of unwanted sediments in tanks.

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Removal of sand grains

> 0,2 mm

Flow rate

5, 10 or 15 l/s

Design

stainless steel AISI 304 / 316 or higher

Control

PLC, SCADA connection, timer

Sand separator for municipal and industrial applications

Municipal wastewater treatment plants – at the WWTP inlet as an essential part of mechanical pre-treatment
Industrial WWTPs – especially food processing, concrete plants, engineering, automotive industry, textile and paper mills
Stormwater and surface water – locations with a high proportion of wash-off solids (car parks, road drainage)
Recirculating industrial systems – lines where water is repeatedly recirculated and must be protected from mineral particles
Sludge and sediment treatment – removing sand before further processing protects pumps and mixers

Aplikace

Suitable use

The Sand separator is designed to separate sand and other heavy particles from a mixture of water and undissolved solids dispersed in the water. In addition to sand, the water usually also contains a large percentage of floating impurities or particles with a density close to that of water. This composition is particularly typical of municipal wastewater.

Sand removal is especially necessary in cases where, during subsequent water treatment, a substantial reduction in flow velocity would cause undesirable sand deposition in downstream technology.

The Sand separator is a device used in wastewater treatment plants to separate sand from other sedimenting particles. It usually follows a grit chamber, which is sized for the full water flow and in which sand settles together with other solid particles denser than water.

Benefits of the IN-EKO TEAM solution

depending on the inflow, sand grains larger than 0.2 mm can be removed
hydraulically balanced design prevents short-circuit flows
integrated sand washing
fully automatic operation
remote monitoring – Industry 4.0

Optional modifications

insulation option – outdoor installation of the separator
option to extend the screw conveyor

Smarter operation through innovation

In cooperation with our partners, we develop solutions that reduce environmental impact – from energy-efficient components to process digitalisation and remote equipment monitoring.

Sustainability as a foundation

From design to operation, our technologies are built to save resources, energy and space. This is not a passing trend – sustainability is a natural part of every piece of equipment we develop. Our goal is to ensure cleaner water and long-term balance in nature.

Technology hub

Why IN-EKO TEAM?

IN-EKO TEAM is a Czech engineering company with its own development and research department as well as its own production facility. We design, manufacture and supply top-quality equipment for wastewater treatment – from municipal wastewater treatment plants and industrial operations to aquaculture.

Our equipment is made of high-quality stainless steel and has been installed in more than 80 countries worldwide. Thanks to our long-standing know-how, patented solutions and precise workmanship, we offer our partners the confidence of efficient equipment with a long service life, along with subsequent service and commercial support.

We are your partner from the initial design through commissioning to follow-up service inspections.

O nás

WWTP

How does the Sand separator work?

At regular intervals, sand together with water and other particles is conveyed to the sand separator, most often by an air pump or by gravity inflow. Here, controlled sedimentation takes place and the sand is separated from the other particles brought from the grit chamber.

The operating principle is based on the different densities of water and sand. While the density of water is approximately 1 g/cm³, the density of sand is about 2.6 g/cm³ (derived from the density of quartz). The resulting separation efficiency of particles heavier than water is determined by the retention time required for the particles to settle. The sedimentation rate is again determined by the density of the material.

The water entering the separation tank flows through its internal system and, during this process, the sand settles and accumulates at the beginning of the screw conveyor. There it is washed with pressurised water, while swirling light fractions are flushed into the outlet by specially shaped, directed water jets. The washed sand is conveyed away by a screw conveyor.