Water pretreatment process involves usage of various water clarifiers. Our range of water clarifiers includes tube settlers, water pretreatment plant, lamella clarifiers, clarifiers & flocculators, high rate solids contact clarifiers (HRSCC), side stream filters, inclined plate clarifier etc.

For any feed sources – Surface Water, Well Water, Sea Water or Wastewater -Marcuras provides any of the following processes or a combination to make it suitable for the downstream processes:

HRSCC (High Rate Solids Contact Clarifier)

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We manufactures and supplies High Rate Solids Contact Clarifier (HRSCC). High Rate Solid Contact Clarifiers are next generation technologies that achieve higher throughput in a smaller footprint than conventional clarifiers - resulting in cost savings and improved performance. The design features of the solids contact type clarifier provide the three zones necessary for proper clarification:a. Rapid mix zone, where raw water, recirculated precipitates and fresh reagents are rapidly mixed together.b. Slow mix zone, where gentle mixing permits floc formation and brings the floc intointimate contact with the suspended impurities.c. Clarification or settling cone, where the upward flow (rise rate) is reduced to a lowvalue to permit the precipitation to settle out.

Clarifiers & Flocculators
A wide range of water Clarifiers are manufactured and exported. Circular clarification & flocculation is one of the most popular and proven processes used to treat contaminants for removal in water and wastewater. While some systems settle solids out of the liquid stream by gravity, others use flotation methods to float the solids to the top to be skimmed away.

Tube Settler / Lamella Clarifiers
Inclined plate (lamella) clarifiers, tube settler, lamella clarifiers and tube clarifiers are innovative technologies that increase basin settling area by creating an inclined settling surface.  Overall plant footprint can be reduced by up to 90% using these
technologies.

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Media Filtration –Dual Media Filter / Sand Filter
These filters work on the principal of depth filtration. The principal media in these filters is quartz grade sand and anthracite. Other supporting media include pebbles of various sizes, crushed gravel and silex. The major advantage of this type of filters is that anthracite which provides for coarse filtration is lighter than filtering sand. Hence on stage of coarse filtration takes place the anthracite bed and the next stage takes place on the sand bed. Thus depth filtration is achieved. Since both media (viz sand and anthracite) are employed their capacities the dirt loading capacity of these filters is twice that of pressure sand filters.

Activated Carbon
The principal media in these filters is activated carbon. Other supporting media include pebbles of various sizes, crushed gravel and silex. The activated carbon is a highly porous media. This property of carbon allows it to adsorb the free in raw water. Also organic matter present in colloidal form is adsorbed in these pores. Thus odour emanating from raw water on account of these colloids reduced. The activated carbon present in the standard range has an iodine value of 450. This carbon is also available in iodine values of 600, 900 and 1200.

Iron Removal
The principal media in these filters is manganese dioxide. Other supporting mediainclude pebbles of various sizes, crushed gravel and silex. Manganese dioxide catalyses precipitation of iron and holds back the precipitated matter on the filter bed. Also manganese dioxide acts as a strong oxidizing agent.The entire ranges of filter are available in different MOC like FRP, MS, MSRL etc. They are available fully automatic, manually operated or with multiport