Description

The Media Sand Filter has a filter fineness of approx. 20 µm for the removal of coarse contaminants and thus relieving the following filter steps. When the capacity of the filter is exhausted the water is flushed back to clean the filter. This way, filter exchange is not necessary. Putting the Media Sand Filter before the other treatment steps is particularly recommended if the water to be purified is heavily contaminated by turbid matter. Otherwise, the capacity of the fine filter before the reverse osmosis would exhaust quickly.

In case of raw water containing chlorine (e.g. tap water), a dechlorination device can be put before the reverse osmosis. Dechlorination is carried out by the addition of sodium disulphite. This ensures the best possible protection of the membranes.
The addition of a hardness stabiliser protects the membranes by preventing furring.

The 0.5 µm fine filter, which is part of the standard equipment, offers the best possible protection against the obstruction of the following reverse osmosis steps. When the capacity of the pre-filter is exhausted the filter must be exchanged.

The reverse osmosis allows chemical-free water purification while at the same time ensuring easiest handling of the system which continuously optimises the operating pressure and drinking water output without intervention of the operator.

If the raw water is only polluted with bacteria and viruses, drinking water of the highest quality can be produced at very moderate operating costs using only the pre-filtration and UV treatment steps. Using only the UV treatment, up to 240,000 litres per day of drinking water can be produced. In the case of only bacteriologically contaminated water, treatment can be carried out without reverse osmosis.
In the treatment process of the reverse osmosis, minerals are removed from the water. If purified water is the only drinking water source for quite a long time Kärcher recommends the adition of minerals to prevent any possible deficiency symptoms of the concerned persons. The post-chlorination device provides the treated drinking water with minimal quantities of chlorine according to the regulations of the World Health Organisation (WHO). This way, the produced drinking water can be stored and is effectively protected against renewed germ formation.

The system and all its accessories can be integrated in a container (with optional air-conditioning). Therefore, all kind of containers from the functional standard container up to optimised, insulated containers in sandwich construction can be used.
The container makes the complete system flexible and ensures safe transport and operation of the system under all conditions.

The 60 kVA diesel generator makes the complete system independent of an external power source. The generator is water-cooled and thus ready for operation in an arctic as well as a desert climate.

The air-conditioning unit ensures pleasant working conditions at extreme outside temperatures and increases the life-span of the devices under extreme conditions.

The tent offers protection against environmental influences such as dirt, rain and sun. In winter, the tent can be heated using a heater with 60 kW heating capacity to protect the system even against extreme cold.

The water distribution station makes it easy to take water out of the storage containers.

As the quantity of produced drinking water is often not equal to the quantity consumed, tanks are required to store the purified water.