Filters

Carbon Filters

Activated carbon filtration effectively removes organic contaminants from water and
these are typically those responsible for taste, odour and colour, so improving the brightness
and flavour. However, carbon filters do not remove materials such as microbes, fluoride,
sodium, nitrates and hardness.

Sediment Filters

These are effective in removing particles from the water such as sand and grit, flakes of
corrosion from old pipes and calorimeters. Typically either 1 micron or 5 micron, they are
also used in ultraviolet water sterilisers to ensure that microbes in the water are not hidden
or shadowed by particulate matter, so reducing its effectiveness.

Ceramic Filters

These are very fine filters (down to around 0.5 micron), used to remove bacteria and some
organic compounds. They will also reduce some of the chalkiness of the water.

Resin

Softening Resin
Tannin Resin
Nitrate Resin
Mixed Bed Resin
Carbon
pHlocrite Grade B
pHlocrite Grade A
Crystal Right 100
Crystal Right 200
Birm
Filox
Filter Sand
Pea Gravel
Phosphate Crystals
Permix
Salt

Ion Exchange

Ion exchange is a process that includes two very similar applications of the same technology.
The first is water softening. This is the process of removing ions from the water and replacing
them with sodium ions and chloride ions. The most common use for this is residential, where a homeowner is trying to reduce the hardness or improve the taste of the water that the municipal
service provides. This also reduces deposits and scale that can be left from water with a high
level of hardness. The second application is deionization. In deionization, the hardness and other ions that are initially in the water are removed and replaced with H+ and OH- ions, which can combine to from water. This is used in applications where extremely pure water is required.

The process works like this: Ion exchange resins (little beads that are charged) are coated with the replacement ions. In the case of water softening the beads are coated with Na+ and CI-.
In the case of deionization, they are coated with H+ and OH-. Water flows over the resin. The ions in the water are attracted to the resin. The ions in the water attach themselves to the resin, and knock off the ions that are already attached.

The resin is exhausted when all of the replacement ions are gone. In order to replenish the resin, also called regenerating the resin, a strong solution of the replenishment ions must
be applied to the resin. This removes the ions that came from the water and regenerates
the resin. The solution that is used to regenerate the water softeners is concentrated
salt water called brine. There are two solutions that are used to regenerate a deionizer.
One is a concentrated acid, and the other is a concentrated base. These include Softening, Tannin Removal, Nitrate Removal and Mixed Bed Resins. These are available in bags of 25kgs.

Carbon

Grade 207EA is a general purpose, high activity carbon to use in a range of water treatment applications. It has been developed to remove organic contaminants, pollutants and also to remove taste and odour thereby revitalising the character of water. It can also be used to de-chlorinate prior to RO membranes. Available in 25Kg sacks (approx 50litres), we normally stock the 12x30 mesh size (0.5 to 1.5mm).

PHlocrite
pHlocrite is a synthetic high magnesia, semi-calcined dolomitic limestone filter medium for the removal of carbon dioxide, iron and manganese from water. It also provides automatic pH control and adjustment of the Langelier Saturation Index, establishing well-balanced water through simple filtration. The advantage of synthetic dolomite over the natural product is that the calcium carbonate/magnesium oxide ratio can be varied to suit particular applications, resulting in optimum performance, through positive and precise pH adjustment. pHlocrite is very competitively priced and extremely economical to use, an additional bonus being the lower running costs of the higher magnesia grades which extract more carbon dioxide per unit weight, it requires no dosing equipment and fits into any gravity or pressure filter tank, placed as a layer on top of a conventional sand bed.

pHlocrite is excellent for the anticorrosion treatment of nearly every aggressive water characterised by low calcium hardness, low alkalinity and/or low pH resulting in a negative Saturation Index

Crystal Right
Is the only multipurpose water treatment media that removes iron, manganese and hardness and raises pH and can remove hydrogen sulphide al in one process.

Crystal Right silica crystals are a natural choice for today's water conditioning systems. No other product does so much to condition problem water in a single pass.

These zeolite crystals come from a sodium aluminosillicate carefully produced and processed by Mineral-Right using an exclusive technology. Through its unique crystalline structure, Crystal Right provides superior removal of hardness, iron and manganese while raising pH levels of acidic water at the same time.

Unlike round, resin beads, Crystal Right crystals provide better filtration, and are thoroughly cleaned by backwashing faster than ordinary resins without loss of product.

Explore the many advantages of a single-pass, single-system product that is setting new industry standards. Your dealers and customers will be impressed.

Crystal Right 100 is the most durable of the manufactured minerals. It raises the pH value of acidic water while it reduces hardness, iron, and manganese. Low pH waters tend to be more corrosive than neutral or higher pH waters. This pH adjustment and reduction of undesirable minerals is maintained by the excellent filtration and backwashing properties.

Crystal Right 200 is a select, high capacity mineral used for the reduction of hardness, iron, and manganese from water. The mineral is a crystalline structure manufactured to stringent specifications and quality control (screen analysis) guidelines. This extra effort assures the highest softening capacity of the zeolites. In addition to these high capacities, the consistently superior performance is possible because of its excellent filtration and backwashing characteristics.

Crystal Right works best on "clear water" iron and manganese, where a water sample is clear of precipitated iron when freshly pumped. We have installations operating with iron or manganese levels up to 15 ppm and producing water with less than 200 ppb iron and 50 ppb manganese. Above 15 ppm we do have systems producing good treated water but residual iron and manganese may exceed the 200 ppb and 50 ppb levels. As Crystal Right is an inorganic mineral, its lifetime can be reduced on very low TDS water so we do not recommend its use with TDS of less that 80-ppm or a hardness of less than 50 ppm.

Crystal Right 100 is used where the raw water pH is between 6.0 and 7.0 (if the pH is lower than 6.0 then conventional pH correction will also be needed)

Crystal Right 200 is used where the raw water pH is 7.0 or above, its advantage in this situation is a higher capacity.

Both minerals will remove calcium and magnesium hardness so it is easy to test if the system is working by testing the water hardness. If the water is soft, the unit is working.

BIRM
It is efficient and economical method of removing dissolved iron and manganese compounds from raw water supplies. It acts as an insoluble catalyst to enhance the reaction between dissolved oxygen and the iron/manganese compounds. When using BIRM for iron removal it is necessary that the water contains no oil or hydrogen sulphide, organic matter does not exceed 5 ppm, the dissolved oxygen content is at least 15% of the iron content and the pH is 7 or higher. For manganese removal the above also applies but the minimum pH is 8.0. Birm is packed in 1 cubic foot bags weighing approximately 22kgs per bag.

Filox
This is capable of removing iron and manganese from water by oxidation and precipitation. Its action is similar to that of BIRM but at a lower reaction rate. It is normally used in a mixed bed with filter sand. It is supplied in 25Kg bags (approx 12.5 litres)

Filter Sand
Triple washed filter sand is available in 16-30 mesh (0.5 to 1.00mm) grade. It is specifically grade for water treatment filtration applications and is available in 25Kg bags.

Support Gravel
Triple washed natural support gravel is available in 6mm grade for use in a variety of water treatment units as a support media. It is packed in 25Kg bags.

Manganese Greensand
Manganese Greensand is formulated from glauconite greensand, which is capable of removing iron, manganese and hydrogen sulfide from water through oxidation and filtration. Soluble iron and manganese are oxidized and precipitated by contact with higher oxides of manganese on the greensand granules. The hydrogen sulfide is eliminated by oxidation to sulphate and an insoluble precipitate. Precipitates are then filtered and removed by backwashing. When the oxidizing capacity power of the Manganese Greensand bed is exhausted, the bed has to be regenerated with a weak potassium permanganate (KmnO4) solution thus restoring the oxidizing capacity of the bed. Two to four ounces of potassium permanganate, in solution, per cubic foot of Manganese Greensand is considered sufficient for normal regeneration. It is advisable to vigorously backwash and regenerate the bed when it is placed in service and before its oxidation capacity is totally capacity is totally exhausted. To operate the bed after its oxidation capacity is exhausted may reduce its service life. Manganese greensand is packed in 1 cubic foot bags with a media weight of approximately 39kgs.

Product Key Features
· Iron Removal over wide pH-range
· Effective removal of hydrogen sulphide in addition to iron and/or manganese
· No harmful effects from a chlorine feed
· Low attrition loss for on bed life