Omega Filter

wastewater sand filterwastewater sand filter1


  • Continuous operation thanks to sand washing device, no stopping for back-washing required.
  • No mechanical moving parts.
  • Special design of feeding cone for homogenous distribution of raw water on sand bed.
  • Automatic control of hydraulic and solid load to prevent clogging of filter media.
  • Low maintenance, high reliability and performances.
  • Quartz sand at controlled size.
  • Stainless steel construction.

wastewater sand filterO P E R A T I N G  P R I N C I P L E

The water to be filtrated is introduced in the lower area of the sand filter through a special designed cone that distributes evenly the inlet water into the sand bed made of quartzitic sand. The water, flowing through the sand bed, settles the solid particles contained and conveys to the upper part of the filter where is discharged by an overflow. The contaminated sand is pumped to the washing device where is continuously washed using a small fraction of already filtrated water, that is then collected to a separate outlet. The cleaned sand is again replaced at the top of the bed.


  •  Polishing of clarified waters for recycling
  • Surface and spring waters filtration
  • Polishing of process waters for recycling
  • Biological plants effluents filtration
  • Algae removal
  • Filtration of oily waste waters
  • Filtration of iron and steel industry waters
  • Filtration of metal finishing waste waters

wastewater sand filter2

Filter Media: Consider using high-quality and durable quartz sand or anthracite for tertiary filtration of wastewater. Both options offer long-lasting performance and low maintenance costs. Quartz sand is known for its chemical stability, lack of impurities, and mechanical strength, making it an efficient and durable water purification material. It has a high pollutant interception ability, low operating cost, and is suitable for single-layer, double-layer filter tanks, and ion exchangers. On the other hand, anthracite is lighter than sand and resistant to chemicals, making it suitable for dual media filters. It is effective in removing suspended solids and turbidity, and its high carbon content makes it ideal for biofilm treatment. Silica sand offers benefits such as durability, mechanical strength, and chemical inertness, reducing the need for frequent replacement and lowering maintenance costs. In summary, both quartz sand and anthracite provide efficient and long-lasting filtration solutions, each with its own unique advantages for water treatment applications.

Tertiary Filtration of Wastewater or Self-Cleaning Continuous Sand Filters Maintenance: Quartz Sand or Anthracite (high-quality and durable/long-lasting).

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