Filter Housing

DMI-65 is a revolutionary silica sand based filtration media designed for the removal of Iron and Manganese from feedwaters. The media has been extensively used in many different applications over the world. DMI-65 represents the most advanced catalytic water filtration media currently available with extremely high capabilities of removing both Iron (Fe) and Manganese (Mn) simultaneously through low cost catalytic oxidation and retention of precipitate. DMI-65 will also remove arsenic from a water supply given the correct operational conditions. DMI-65 is one of the few catalytic water filtration media in the world developed to remove iron and manganese that is certified to NSF/ANSI 61 for drinking water applications.

 Iron and Manganese

Iron can be removed by many different methods to achieve the “World Drinking Water Quality Standards”. Since the introduction of DMI-65, these methods are regarded as old technology by world standards, expensive to operate in chemical, labour, energy and ongoing maintenance costs. The DMI-65 has a life span of at least 5 to 8 years before needing to be replaced if the plant is maintained correctly.

Advantages of DMI-65

• Eliminates Potassium Permanganate. Continuous injection of sodium hypochlorite to low residual acts as an activator for the media and provides a residual sanitizer effect..
• Wide pH range. Stable and satisfactory performance at pH 5.8 to 8.6.
• High Flow Rates. DMI-65 operates satisfactorily at linear filtration velocities of up to twice that of conventional media, reducing capital costs considerably.
• Higher Operating Temperatures. Maximum operating temperature of 45°C.
• Long Life. DMI-65 is not consumed in the catalytic oxidation process, .
• System Compatibility. Physical properties are similar to that of other comparable systems, allowing a change of media without major hardware modifications.
• Arsenic Removal. DMI-65 has been shown to remove arsenic associated with iron-containing influent. Ferric chloride is used when treating feed waters00 with high arsenic feed levels.

What can ANTISCALANT BALLS / SILIPHOS do for you? Most natural waters cause damages in pipes, boilers and other installations. Some contain dissolved minerals, mainly calcium and magnesium salts. Such waters are referred to as being hard. Hard Waters form scale in pipes and boilers. This leads to a decrease in water pressure and an increased energy demand. Clogged pipes may have to be replaced. Heating coils may overheat and fail. Soft Waters are aggressive to metals and cause corrosion. Consequently the tap water turns brown. Leaks and burst pipes may be the results.

Protects water systems in hotels, public buildings, private households and industry against scale formation and corrosion. Prevents so-called ‘brown’ or ‘red’ water and clogged pipes saves expensive repairs or even replacement of water pipes, boilers, heaters, cooling systems etc. helps to save energy extends the life of your water installation. SILIPHOS prevents scale and stops corrosion. It utilizes the phenomenon that minute concentrations of polyphosphates are sufficient to inhibit the deposition of scale onto metallic surfaces. Because of its phosphate and silicate content SILIPHOS also inhibits corrosion by forming a thin protective layer on the metal surface.

A SILIPHOS concentration of 2-3 ppm is sufficient to achieve both of these effects. SILIPHOS will also slowly remove existing scale in old pipes if it consists of brown scale, i.e. iron oxide. Hard scale, i.e. calcium carbonate cannot so easily be removed by SILIPHOS. Here the advantage is again that SILIPHOS will prevent further scaling up. Experience shows that scale and corrosion is not only found in galvanized but also in copper pipes. Even in plastic pipes one can find scale and deposits.

As a rule of thumb one can say that 1 mm scale on the heating coils of a boiler increases the energy cost by 15%. SILIPHOS consists of 100% active substance. The use in tap water and other types of fresh water at the prescribed dosage is inoffensive. Siliphos dispensers can be installed in almost every water system. They require no electric installation and hardly any maintenance. They only have to be refilled with spheres every 3 – 6 months. Refilling is very easy.