Necessity of Water Purification for the Rural Areas

Purified water production represents a very demanding technological process. Various methods are available differing in the technology and the process efficiency level. A combination of more methods is commonly used or, variantly, multiple use of a single technology is applied. Such an approach guarantees the best results.

Reverse osmosis – membrane filtration

Reverse osmosis is the most widespread principle used in purified water production equipment today. Reverse osmosis is a filtration method product of which is chemically pure water from virtually any source. This method is capable of separating impurities and particles smaller than nanometre ones. In comparison with traditional distillation apparatuses the systems based on reverse osmosis offer considerably lower water and energy consumption – 2,5 times lower volume of water is used to produce the same amount of treated water. Osmosis principle based on water pressure alone has essentially no demand for electric energy. Maintenance costs are lower, too, especially in areas with hard feed water.

Filtration

Direct filtered water

Is a method based on mixture component separation by material letting through only one of the components. The procedure is suitable for drinking water treatment and pre – treatment of water intended to be later processed to purified water via subsequent cleaning stages. Filters separate unblocked chlorine, chloramine, chloride oxide, phenol, organic solvents and pesticides. Active carbon is most frequently used as the filter. There is a disadvantage, though, to this material- limited life. This brings the necessity of a change or regeneration in certain period. Active carbon filtration method is widely used in industry, breweries, water treatment stations and waterworks.

Distillation is a cleaning or mixture component separation method based on initial boiling point. In a gradual evaporation process taking place in a bosh the substances get separated due to their different initial boiling point. The vapour then condenses after passing through a cooler.

Water Filter

UV radiation is a part of the light spectrum. Radiation in the range of UV-C (100 nm – 280nm) has a gemicidal effect. A sterilizer unit contains one or more UV lamps whose radiated wavelength reaches the effective values to annihilate the microorganisms. 99,99% pathogene annihilation is reached through this method. The volume of sterilised water approaches 15 000 l / h.

Which water cleaning technologies and approaches we use? 

In our equipment we only use new components manufactured from the certified materials and provided with all the necessary tests. The high quality of the equipment is therefore guaranteed by the filtration components, ion – exchangers and other materials used. Moreover, all the components are subjected to tests in our own laboratories to provide the personal guarantee of quality. Before shipment to customers full – scale tests are performed and all the essential features are verified.

Reverse osmosis systems

They represent a cost – effective alternative to the traditional laboratory pure water production methods – distillation and redistillation. These systems are used mainly for the low water production costs and system maintenance costs. Polishing

Our expected Planet

If the requirement is to produce purified water for special laboratory analyses a special final cleaning technology referred to as “polishing” is used. Water finished to such degree (15 – 18,2 MΩ) is to be immediately used and can not be stored in common containers. Prior to polishing water has to be pre – treated using one of the previously mentioned technologies (reverse osmosis, electrodeionization, classic ion exchangers).

For production of water with ultra - low TOC content UV lamp is included as the last pre – treatment step preceding the final polishing. UV radiation oxidates the residual organic compounds contained in the water.

  Microbial filtrationThe method is used to eliminate bacteria at the water inlet. Most laboratory water standards define the quality also with respect to the bacteria content and not only with the chemical purity in mind. To reach the required laboratory purity microbial filters are applied with defined absolute 0,22 micrometre porosity.