Primary Treatment is the first and basic important stage of the water treatment process.
The purpose of the pre-treatment is to remove most of the non-soluble solids physically in order to reduce the pollutant loads and to protect all the subsequent steps in the treatment plant.
Providing a reliable, high-quality supply of treated water is critical to many processes. However, selecting the right Pre-Treatment technologies is very essential in the field of water treatment.
It requires a comprehensive evaluation of the raw water quality and process requirements, the system design, operating conditions, and economics. We MENA-Water have the experience and expertise to specify the right pre treatment system for standard applications and custom design systems to meet specialized needs.
Pre-Treatment incorporates the following processes:
- Screening step which aims for removal of solids
- Washing compactor cleans/compact fibrous materials from the screen for easy handling
- Grit removal step aimed for settling of all sand with larger in size than 0.15 mm
- Sand classifier and sand washer are used to wash the sand and dry it for reuse
- Grease & oil removal by floating to the surface by air and thereby skimming off
Step Screens are a ”stepping” type of screening systems for separating suspended solids.
This screw-screen-press-system is suitable for vertical installation as combined machine.
The basket screen is excellent for installation in pumping stations and manholes.
This is a belt screen of horizontal design.
Longitudinal Bridge scrapers are designed for desludging and descuming of primary and final settling tanks and can be used as Grit chamber scrapers, sludge scrapers in the treatment plants.
The Micro Filter Screen can relieve primary treatment burden
The grit washer unit consists of two basic items – grit wash tank and discharge screw.
Grit classifier are used for the separation of solids from water and consisting of a funnel-shaped separation tank with a screw conveyor.
The Vortex Grit Trap is used to screen and wash sand present in water.
A high performance and low operating cost equipment.
The complete preliminary treatment of waste water in one compact plant includes