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pH Neutralising Filter

Iron Removal Filter with automated backwash valve, for removal of up to 10 ppm iron in ground water.

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Description MediaPlus Iron Removal Filter

  • Iron in rural groundwater supplies is a common problem: its concentration level ranges from 0 to 50 mg/l, while WHO recommended level is < 0.3 mg/l. The iron occurs naturally in the aquifer but levels in groundwater can be increased by dissolution of ferrous borehole and submersible pump components. Iron-bearing groundwater is often noticeably orange in colour, causing discoloration of laundry, and has an unpleasant taste, which is apparent in drinking and food preparation.  
  • Iron dissolved in groundwater is in the reduced iron II form. This form is soluble and normally does not cause any problems by itself. Iron II is oxidised to iron III on contact with oxygen in the air or by the action of iron related bacteria. Iron III forms insoluble hydroxides in water. These are rusty red and cause staining and blockage of screens, pumps, pipes, reticulation systems etc. If the iron hydroxide deposits are produced by iron bacteria then they are also sticky and the problems of stain and blockage are many times worse. The presence of iron bacteria may be indicated by rusty slime inside the pipework, reduced water flow form the bore and unpleasant odour from water pumped from the bore, slimy deposits blocking main and lateral lines, severe staining on pavements and fixtures.
  • MediaPlus  is an extremely powerful catalytic water filtration media that is designed for the removal of iron and manganese in aqueous solutions (water) without the need for potassium permanganate or chemical regeneration. The unique microporous structure ofMediaPlus efficiently removes dissolved iron to the almost undetectable levels as low as 0.001 ppm and manganese to 0.001 ppm.
  • MediaPlus acts as an oxidation catalyst with immediate oxidation and filtration of the insoluble precipitates derived from this oxidation reaction.
  • MediaPlus can also remove Arsenic, Aluminium and other heavy metals and  Hydrogen Suphfide under certain conditions. The material is part of the broad category of products deriving their physical and chemical action fromthe interaction of their metal oxide surface with the water molecules and ions in solution.

 

Description Backwash Filter and valve 

The iron removal filter comes with a  composite pressure vessel ,  filtration media including underbed, internal riser and laterals as well as an automated   Clack control valve .

 

 

  •  1″ to 1.5″ top mount control valve suited for mid-size commercial/industrial applications
  • Lead free brass valve body
  • Economical optional meter
  • Service flow rate of 227lpm, backwash 189 lpm
  • Solid state microprocessor with easy access front panel settings
  • Front panel display for time of day, days until next regeneration, volume remaining and current flow rate and total volume used (Totalizer)
  • Four methods to initiate the downflow regeneration; meter immediate, meter delayed, time clock delayed or pressure differential
  • Optional double backwash feature offers optimum regeneration, cleaning ability and efficiency
  • Fully adjustable 6-cycle control delivers controlled backwash, downflow brining/slow rinse, second backwash, fast rinse, refill and downflow service
  • 12-volt output AC Adapter provides safe and easy installation
  • Treated water regenerant refill
  • 24 hour clock
  • Reliable and proven DC drive

World’s best control valve Clack backwash valve

Fibreglass reinforced plastic pressure vessel as per BS 4994 with 5 year structural guarantee. 

Maximum operating pressure of 1034 kPa and maximum operating Temperature of 50°C for polyester, and 66°C for vinyl ester.

 

Vessel Size 8x44" 10x54” 13x54" 16x65"
Valve Type Clack WS1 CLACK WS 1 

 CLACKWS 1.25

 CLACK WS 1.5" 
Service flow rate- m3/hr( at 15m3/hr per m2)  0.6 0.8  1.2  2.2
Volume of  MediaPlus –liters  17 35  52  98
Backwash(m3/hr)  0.6 0.8  1.2  2.2
Inlet/Outlet  3/4" 1”  1.25"  1.5"
Approximate Shipping Weight (kg)  50  75  95  185
Overall height(cm)  115 140  140  170

 


 

Note: 

Service flow rate is dependent on actual water conditions and level of iron and other contaminants, as well as pH and level of dissolved oxygen.  Dissolved gases like Carbon Dioxide should be removed, prior to treatment in this filter. This can be achieved by aerating the water using a venturi eductor.

Low pH should be corrected prior to iron removal by using a Calcite filter, or direct dosing with Soda Ash. A calcite filter will add hardness to the water, which may require a water softener.  Soda Ash dosing can be economically achieved by using a liquid eductor, which will facilitate proportional dosing.

Soda Ash (Sodium Carbonate) will not impact on the water hardness, however low alkalinity water may be corrosive, therefor necessitating the addition of a buffer, like Sodium Bicarbonate.

Manganese Greensand

MangaeseGreensandManganese greensand is a purple-black filter media used for removal soluble iron, manganese and hydrogen sulphide from well water supplies. It also has the capacity of removing radium and arsenic. It is processed from the mineral glauconite that is zeolite. Using iron exchange properties of this natural zeolite, a manganese dioxide coating is deposited on the surface of the glauconite grains. The manganese dioxide acts as a catalyst in the oxidation reduction reaction of iron and manganese. The media can be used in two methods of operations: continuous regeneration (CR) and intermittent regeneration (IR).

 

Advantages

  • Iron reduction over wide pH range
  • Effective reduction of hydrogen sulphide in addition to iron and/or manganese
  • No harmful effects from a chlorine feed
  • Low attrition for long bed life

Physical Characteristics

  • Color: black
  • Bulk Density: 85 lbs./cu. ft.
  • Specific Gravity: 2.4
  • Effective Size: .30 – .35 mm
  • Uniformity Coefficienty: 1.6
  • Mesh Size: 16 – 60
  • Hardness: 6 – 7 (Mohs scale)

Operational Specifications

  • Water pH range: 6.2 – 8.5
  • Bed depth: 30 in.
  • Freeboard: 50% of bed depth (min.)
  • Service flow rate: 3 – 5 gpm/sq. ft.
  • Backwash flow rate: 10 – 12 gpm/sq. ft.
  • Backwash expansion rate: 40% of bed depth

 


5 Year structural warranty on the pressure vessel.

We warrant that this product is free of defects of both material and workmanship for a period of one year.

Any product found to be defective will be replaced at no cost, except for any associated freight charges.

Prior to any returns, please contact our Customer Care Service in order for us to assess your warrantee claim.


For more information on installation please download below document.


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