Sometimes, active agents in the water itself are the best way to treat water. Grünbeck has therefore developed dosing systems and mineral solutions that prevent the formation of scale. The drinking water is just as drinkable with the mineral solutions as without, and continues to meet all the requirements of World Health Organization. With everything that goes to make up good water. But without the calcium carbonate.
When water is treated through the addition of active agents, exact dosing is important. This is the only way to ensure precisely the amount of a substance needed for the respective water treatment task is added to the water: not too much, and not too little. Grünbeck dosing systems dose active agents very accurately and combine ease of operation with the highest technical convenience. They protect your water installation over many years.
Sometimes, you have to fight fire with fire. You can also fight scale with scale. Grünbeck has developed the innovative anti-scaling device GENO-K4® for this. As a result of an electric charge, limescale crystals form on its electrodes and detach as a result of the regular pole reversal of the electrodes. The crystals therefore enter the water, and there, bind the calcium carbonate to them so that scale does not build up on the heating coil or in the pipes. The crystals themselves are not deposited in the pipe system either. The process is called low-voltage separation.
The limescale crystals with the scale deposited from the water flow off and out of the water supply system. This significantly reduces scale deposits in warm water providers and pipelines. The Grünbeck-developed method used in the anti-scaling device GENO-K4® is patented and safety-tested.
The anti-scaling device itself has been certified by DVGW (German Technical and Scientific Association for Gas and Water). As the DC voltage used is far below the electrolysis voltage, the process does not electrochemically split the water. As a result, no corrosive, explosive or harmful fission products such as CO2, oxyhydrogen or nitrite are created. The method is safe and highly effective. We at Grünbeck therefore also call it the “gentle electrochemical process”: gentle, but effective.
Replace something problematic with something harmless. This is the basic principle in an ion exchange that prevents scale forming on pipes and heating coils. The problem is caused by the minerals calcium and magnesium in the water. When heat is added, the two in conjunction with hydrogen carbonate produce calcium carbonate. If you remove calcium and magnesium from the water, the scale resulting from calcium carbonate cannot form.
In an ion exchange, that's precisely what happens. Calcium and magnesium are removed from the water and are replaced with the harmless sodium, for example. Hard water becomes soft, and the risk of scale falls considerably. The principle of ion exchange comes from nature, where it can be seen in zeolite rock, for example. In water softening, ion exchange is regarded as a particularly economic procedure for turning hard water into soft water. Grünbeck uses it.
The water gets through, but troublesome foreign particles do not. This is the way membranes work in water treatment. Like all membranes, they are partially permeable and separate the filtrate (permeate) from the concentrate (retentate). The filtrate remains in the water supply system. The concentrate containing the foreign particles is removed. The result: Water. The way it should be.
No life without membranes. They play an important role in many biological processes. And like the biological membranes, the synthetic ones used in water treatment separate desirable substances from unwanted ones. Desirable substances get through the membrane, while the unwanted ones are filtered out and removed. The cut-off determines the size as of which particles are filtered by the membrane. In a micro-membrane, filtering is fine, in ultrafiltration it is finer, and in nanofiltration it is even finer still. Finally, there is reverse osmosis, which filters out even singly charged ions. Grünbeck offers membrane technology with a wide range of cut-offs: the right option for every task.
Compared to nanofiltration, ultrafilters are open doors, and microfilters are open floodgates. Nanofilters filter event the smallest particles out of the water: This vastly reduces not only the salt content of the water, but also the amount of germs, pesticides, herbicides and hydrocarbons. If you need water with an extremely high level of purity, Grünbeck offers technology with nanofiltration. Only reverse osmosis offers more intensive filtration.
Nanofiltration is also an instrument against too much scale in the water. As a purely physical process, it can replace ion exchange in which the formation of scale is prevented by replacing calcium and magnesium with sodium. Nanofilters are able to separate monovalent from multivalent ions. As a result, the proportion of calcium and magnesium in the water can be significantly reduced. And when the water lacks both, scale cannot form.
Reverse osmosis produces the purest water. It also filters the very smallest particles from the water, leaving a residual salt content of less than five percent. Otherwise there's nothing: just water, clearer and purer than any other. If you need purest water, you should therefore use Grünbeck membrane technology with reverse osmosis. A good choice. The best.
Reverse osmosis is a method that is generally used to produce process water, for example the extremely pure water used to produce drugs, or cooling water in power stations. In private households and for the production of drinking water, on the other hand, nanofiltration is often used. Why? Because in contrast to reverse osmosis, important minerals remain in the water if nanofiltration is used. And they help to ensure that fresh water often tastes really good.
The earth protects us against UVC irradiation. Which is a good thing. UVC irradiation is the shortest-wave and highest-energy of all UV irradiation and is harmful to organisms. Its high level of energy can be used to fight germs in the water. Grünbeck uses UVC irradiation with a wavelength of 254 nanometres and during water disinfection it thus eliminates 99.99 percent of all viruses and bacteria.
Grünbeck offers UV disinfection systems that release energy of 400 J/m². Scientific studies have shown that even pathogens such as coli bacteria and salmonella are eliminated. If you deploy fine filtration of dirt particles in addition to UV light, you increase the disinfecting effect. Grünbeck offers this combination in products for particularly effective disinfection. It harms germs. It protects the water. And your health.