Everything starts with good start water system . Forward osmosis is a new proficiency for achieve clean irrigation body of water . If you split two liquids through a tissue layer , piddle passes through the tissue layer if the concentration of dissolved gist ( salts ) are different . That ’s because the dissolved substances attract water .
This process continues until the concentrations on both sides are the same . For this you need a tissue layer that only allows water to travel by through it and not the salts . This unconscious process is call osmosis .
Very energy efficient"In fact , forward osmosis is actually unmixed osmosis . But a new terminus has been fabricate because reverse osmosis is very well - know in gardening . That makes it clear that this is something else " , tell Nienke Koeman with research company KWR Water .
The fellowship explores new purification proficiency without the drawbacks of reverse osmosis . " That need a relatively large amount of energy and , what ’s more , it causes the groundwater to have a in high spirits salt tightness in many place , making it more difficult . Forward osmosis in contrast just requires push , " she says .
Osmotic pullIn this technique , you make function of the fact that a fertilizer solution ( such as the A and B container ) is already highly concentrated . This means that such a solution has great attract power ; in the showcase of the manure containers this is 47 legal profession ( A container ) and 31 bar ( B container ) . That pulling force is a physical certainty , and you do not have to use energy to generate it .
In the advancing osmosis installation , the nutrient root is on one side of the membrane and the water reservoir on the other side . This can be solid ground or surface water , but also debilitate water supply . Through the osmosis appendage the water fall to the other side and inspissate the water supply source . unwanted substances , for deterrent example NaCl , are leave behind .
Special membranes"Forward osmosis is an innovative engineering that is still under development . One of the points that is being worked on are the membrane . Thin enough for sufficient water state of flux , thick enough to stop table salt and possible pathogens . The development stay , so that they leak out less salts , " she continues .
A mental test was deal in a test nursery of Wageningen University & Research . A trial at a horticultural company is not contrive yet . The paradigm of the installation comes from blue-blooded - tec , a company that antecedently was not active in gardening , but rather in the food industry and wastewater treatment .
And what do you do with the thickened polluted water system ? Koeman : " If you start up with surface piddle and you condense it just a bit , for example twice , it might still be discharged in the ditch again . If you digest it a mass , you ’ll get a kind of seawater . You have to discharge that in a different way . “The task is being carried out by the KWR Watercycle Research Institute and Wageningen University & Research and finance by the Foundation Program Greenhouse Horticulture , Top Sector Water , Top Sector Horticulture & Starting Materials and Blue - tec .
rootage : Glastuinbouw Waterproof
