Water Treatment

E.P.S. has a huge range of water treatment processes at its disposal. We offer advice and solutions to satisfy the most difficult application.

Our most common treatments offered consist of the following:

Bowl Filters - Remove suspended particles

Softeners - For hard water with high concentrations of lime

Iron & Manganses Filters - Used where water is staining utensils or corroding pipes

Nitrate Removal Filters - Where the levels of nitrates in the water exceed recommended  EC levels

pH Correction - Used where low pH is causing corrosion to piping systems

Purification - Where chlorine or UV (ultraviolet light) is added to kill harmful bacteria

Reverse Osmosis - Removes all trace elements and provides ultra pure water

FILTERS

Water used in agricultural and domestic water systems, contains suspended firm particles such as sand, rust, sludge, etc. These particles of different size varying from few microns to few millimetres, cause damage and corrosion to water systems, taps and electric household appliances.

It is necessary to prevent and to solve the problem by installing a special filter. EPS offers filters of different materials. Filters are available in 2 pieces (head + bowl) and in three pieces (head + bowl + ring), in brass or in plastic material for food use. Filter cartridges can differ in material and in performances:

washable cartridges with net in polypropylene 60 and 80 microns, for potable water;
stainless steel cartridges with washable stainless steel 80 microns, for potable water
wound cotton cartridges 5 and 20 microns, disposable;
activated carbon cartridges for removal of tastes, odours, colour, chlorine;
cartridges with polyphosphates in crystals, anti-scale and anti-corrosion action;
dechlorinating cartridges

Special wrenches are available for filters in three pieces.

Our standard filters are 10" with ¾" connections.

WATER SOFTENERS (LIME REMOVAL)

The water in many parts of Ireland contain mineral salts, predominantly calcium and magnesium, constitute the hardness which causes scale damage to water systems, boilers, electric household appliances valves and taps.

If the water hardness is higher than [ ], it is recommended that a water softener is installed. This retains the dissolved calcium and magnesium salts with special synthetic resins eliminating the excessive hardness. A softener is the absolute solution to scale problems. It consists of a container for the resins, a container for the salt (required for the regular regeneration of the resins), and a valve controlled by a timer, which controls the required regeneration necessary to keep the softener working efficiently for a long period of time.

IRON & MANGANESE FILTERS

The presence of iron not only makes the water yellow-red and gives a bad metallic taste but also creates deposits and as a consequence the pipes gradually clog up.

The presence of iron in the water for domestic use stains taps and linen leading to aesthetic and hygiene problems.

Drinking water must not contain more than 0.2mg/l or iron and 0.05mg/l of manganese.

EPS offers a series of column filters, called DEFERR capable of eliminating elevated quantities of manganese and iron from water. This filtering is done in two steps. First, a special metering pump adds some hypochlorite to the water that oxidizing the manganese and iron present in the water. Before passing through the Deferr filter, the water has to remain in a container for the time necessary to complete the oxidizing process.

Then a pump takes the water to the Deferr filter and the oxidized manganese and iron are transformed into flakes that are retained by the iron remover special filtering material. It is then necessary to periodically remove these flakes by means of backwashing. This is done by a timer which controls the iron remover. The frequency of these backwashings is determined by the pressure drops inside the filter itself caused by flake deposit: from once a day to once a week according to use. It is absolutely necessary to install one filter before the DEFERR and one after it, to the sure that no flakes arrive to the water system.

The iron remover can be chosen according to the rate of flow required and the iron concentration present in the water.

EPS personnel will be happy to do this for you.

NITRATE REMOVER

The presence of nitrates in the water is caused by the decomposition of nitrogenous substances that can be found in human and animals and mainly in the use of fertilizer in agriculture containing nitrogen. These fertilizers are more and more used and high concentrations can be found in water beds and in all agricultural areas. Children up to seven years old and elderly people are more subject to the risk of pollution due to fertilizers, because it may affect the composition of the blood reducing the haemoglobin giving origin to carcinogenic processes.

In waters for domestic use, it is advisable to reduce the excess of nitrates by installing a nitrate remover with anionic resins regenerated by sodium chloride (common salt). The resins contained inside the nitrate remover retain the nitrates present in the water exchanging them with the regenerating solution (sodium chloride).

The regeneration treatment is programmed with an automatic volume/time procedures, guaranteeing the maximum safety for a water supply without nitrates. The size of a nitrate remover can be established according to the daily water consumption and to the concentration of nitrates.

NEUTRAL COLUMN FILTER NEUTRALIZER

Water in many mountainous regions, may have very low pH value, low hardness value but high quantity of carbon dioxide. This fact causes corrosion and as a consequence the perforation of pipes.

A solution to the problem is given by installing a neutralizing filter with calcium carbonate.

NEUTRAL filters are made up of a column containing special activated masses of calcium carbonate capable to increase the pH value and the water hardness.

Periodically, the activated carbons need to be washed and this is carried out automatically by the head of the column filter controlled by an electronic timer. The frequency of washing can vary from a maximum of once a day to a minimum of once a week.

The neutralizer can be chosen according to the rate of flow required.

ULTRA VIOLET STERILISATION

Water in its natural state passes through many different soils, rocks and atmospheres before it reaches our drinking taps. This causes a partial contamination of our drinking water and the result is a requirement to get rid of these pollutants. If you have a public water supply, this treatment is done by the Co.Councils or Urban Councils but if you have a private supply it is important that your water is tested to ensure that it does not contain coliforms, viruses or other bacteria that can cause harm to your health.

Councils mainly use Chlorine to kill the bacteria but as this is not an easy liquid to handle the alternative is Ultra Violet Sterilization.( UV) EPS has UV systems of varying sizes from undersink units suitable for the
home, to large Industrial units used in Factories and Hospitals.We also have a range to suit dairies where sterilization is essential for bulk tanks, milking lines etc.

We always recommend that a 5 micron filter be fitted before the UV unit to ensure that any bacteria cannot be hidden in small particles that may be present in the water.
We carry a large stock of units from 1/2" to 4".

Reverse Osmosis

Reverse osmosis ( RO) is a process to remove and reduce chemical and bacteriological pollutants
present in water.Of the water we use on a daily basis about 7% is used for drinking, cooking and washing our fruit and vegetables.For domestic use we provide an RO unit that can fit under the sink and capable of producing sufficient pure water per day for the above uses. We provide these with pumps if their is insufficient incoming pressure on your system.
For larger Kitchens, Canteens, Labotatories and processes requiring pure water we can design a system configured to meet the most exacting standards.