• Systems of removal of mechanical suspended substances and impurities from drinking water
• System for iron and manganese removal from drinking water
• Systems of softening of drinking water
• Systems on improvement of organoleptic features of drinking water
• Systems of removal of mechanical suspended substances, impurities, dissolved iron and manganese

		Purpose - for fine treatment of water from mechanical admixtures (sand, dross, colloid dredges, microorganisms, etc…
SAND	GRAVAL

Complete set:


• Body;
• Loading;
• Control valve;
• Drainage system.

As a body, the pressure filter of PF type is being used made of stainless steel.

Filtering loading consists of anthracite layer and gravel of different fractions.

For ablution of filters the control mechanism is installed. Its work is possible both in hand and automated regime.

In the filter two types of different filtering mediums are used with precisely distinctive layers. Besides, the medium for rough treatment is placed at the top, and that of fine treatment at the bottom. This layerlike arrangement of mediums allows detaining of big fractions in the upper part of the whole layer, whereas smaller fractions are going to lower layers. Suspended substances go through the loadings without obstructing the upper layer.

Filtering is carried out from top to bottom; water is collected with the help of distribution system.

ADVANTAGES:


• Regeneration of filtering material is not needed;
• Low costs of operation;
• Several models of control mechanism for carrying out automated or hand reverse ablution.

System for iron and manganese removal from drinking water

		PURPOSE - this system is aimed at reduction of Ferrous and Manganese concentrations, contained in the initial water within the norms anticipated by Sanitary Epidemical Inspection 2.1.4.559-96 "Drinking water".
"Black"sand	Ion-exchanging resin

Initial data:
This system works under general concentration of Fe and Mn not more than 15 ng/l.

Complete set:


• Body;
• Loading;
• Control valve;
• Regeneration tank;
• Drainage system.

As a body, a pressure filter "PF"made of stainless steel is used. As a loading, "Black sand" (loading with high concentration of MnO42-) or cation-exchanging resin is used, for whose regeneration solutions of potassium permanganate or solution of sodium chloride are used. Regeneration tank is made of polythene or stainless steel. Oxidizing of Fe and Mn is going in the following way:

1. With the use of "Black sand"- Fe and Mn contained in the water in the Fe2+ and Mn+2 forms are being oxidized by Mn oxide and turn into dissoluble forms Fe3+ and Mn3+ and are trapped by loading's fractions.

2. With the use of ion-exchanging resin the substitution of Fe and Mn cations for exchanging resin cations is taken place.

For regeneration and ablution of loading the control mechanism is used. Its control goes both in hand and automated regime.

For collection of pure water and for ablution radial drainage is used which is made of solid PVH and of drainage caps of polypropylene or stainless steel.

ADVANTAGES:

• High efficiency of removal of Fe and Mn;
• Low costs of operation;
• Several models of a control mechanism for automated and hand reverse ablution and regeneration.

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