Anyone who climbed the communal weewee washbowl in Berlikum , Friesland , in mid - May after several months without rain will see calmly rippling water . This year , there is still tidy sum of body of water available in the 45,000 m2 basin , which is a reassurance for the Dutch agriculturalist who see their individual rainwater basins visibly becoming empty in mid - May .
Those who make the climb will also see some orange ' musket ball ' floating in the basin . These are used to maintain good body of water quality , standardised to how raiser utilize the USAF ™ cavitating ultrasonic transmitters from Ultramins on their farms .
Communal bassin of Gietwater Berlikum
50 three-dimensional meters per hourFor pepper grower Jaap Vink of Vink Sion , tomato agriculturalist Theo van der Kaaij of Kaaij Kwekerij , and love apple grower Marco van Overbeek of Gardener ’s Pride , the presence of the communal water basin in their greenhouse country has long been everyday , even though it is rarified elsewhere . The communal basin has been there since the Frisian glasshouse area was set up in early 2000 .
Policymakers required the creation of a communal drainage basin , which became a " showpiece of sustainability " profit both cultivator and the surroundings . unexampled agriculturist in the area were call for to expend water from this washbowl , leading to the signing of purchase contracts . Despite this , individual washbasin were finally develop over the years , as there was always a pauperization for more calibre irrigation water .
The two catchment area of Gietwater Berlikum are satisfy with osmosis piddle .
Since the development , several company using nursery have made changes . Some grower have stopped their previous activities or switch to new ones . Among them are Jan and Frans Zeinstra , who used to grow tomatoes but no longer use their greenhouses for Lycopersicon esculentum cultivation . Along with Vink Sion and Kaaij , they stay part of Gietwater Berlikum . Gardener ’s Pride is also a participant in the shared weewee provision .
The initial architectural plan was to fill the communal basin with 100 cubic cadence of purified aerofoil piddle per 60 minutes , but this did n’t meet the grower ' water quality expectation . Now , the washbasin is filled with osmosis water instead . Users collectively pull 50 cubic m per hour , while 30 three-dimensional meter of osmosis water are added each hour . This means the washbowl level lessen gradually . However , this is n’t an issue because there are few users now , and rain allows grower to rely on their individual basin as needed .
antecedently , attack were also made to practice water system via ultrafiltration , but that projection was not successful .
The first transmittersThe latest measure to raise and maintain weewee calibre in the communal basin is the installation of USAF cavitating ultrasonic transmitters from Ultramins . The Zeinstra chum were the first in the are to use these transmitter in their own basins . After installing the USAF transmitters in their river basin , silo , and casual supplies , they note significant betterment . " In the first 2 weeks , there was slightly more pollution because the sender were clearing the algae and biofilm . Within 4 weeks , we saw the water was much clearer , and the biofilm and alga were run . The water has become much more sheer and clean everywhere . "
Eric van Velzen ( Ultramins ) and Jaap Vink with Vink Sion at the company ’s individual basin .
Urgency or preventionThe experiences of the Zeinstra brothers take in the attention of their colleagues in Friesland . In mid - May , we visited the area , and the three major user of the communal catchment basin shared their insights . It became clear that , due to wry atmospheric condition this year , the communal drainage basin is playing a more substantial role in the growers ' irrigation strategies compared to last twelvemonth .
In the blotto spring of 2024 , Madagascar pepper grower Jaap required " almost no " water from the communal basin . Unlike his colleagues who acquire tomatoes and have high water needs , Piper nigrum cultivation necessitate less . to boot , Jaap recycles all his water , and his economic consumption of extra filmdom reduces vapour from the greenhouse . " I do n’t throw away a drib of water , " he accentuate .
Before relocating his business to Friesland , Jaap operated in a horticultural area between near the Westland greenhouse arena . Unlike in Friesland , Jaap only had personal basins there and did not disinfect the water . He continued this exercise during his initial age in Friesland until an military issue rise up , after which , he switched to using a UV disinfectant .
Eric van Velzen , business exploitation manager at Ultramins , recognise the simulacrum . At Ultramins , they see two types of customers , he notes . " Growers for whom the investment in our system is pressing due to problems and agriculturalist for whom it ’s about bar . Jaap fall into that latter group . "
Regarding the communal watershed , there had been complaint about " gray " weewee quality . However , the installation of transmitter from Ultramins helped improve the piss timbre at Gietwater Berlikum .
Take into accounting more frequent , long droughtsAt Vink Sion , the transmitter swim in a 6,000 - square - meter H2O lavatory . In the arena , tomato growers , concerned about the spread of the Tomato browned rugose fruit virus ( ToBRFV ) since 2019 , have choose to place the sender in other parts of their irrigation systems .
concerned in the experience of neighboring agriculturalist , Kaaij Kwekerij , a tomato plant grower , ab initio installed transmitters in its own rain basin , followed by the daily storehouse silo . Now , transmitters are present in all basinful and everyday storage silos . Theo notes : " The only shoes without transmitter is our waste matter drainage silo . "
For irrigating their tomato plant crops , the party utilise a combination of water supply from both the communal basin and their own H2O supplies . By employ water supply from Gietwater Berlikum , the tomato growers can avoid full depleting their own basins during a dry outflow . " This yr , we begin using water supply from the communal basin in March , whereas last year , we did n’t need to switch until much later . "
In mid - May , a new 8 - hectare greenhouse will be manufacture for Kaaij Kwekerij , and the water provision system will be further expanded , include enlarging one of the basins . This expanding upon will avail the growers maintain their destination of have 1,000 three-dimensional meters of water supply per hectare of greenhouse .
A unexampled glasshouse is being build for Kaaij Kwekerij
" This teetotal year is one you hesitate to document but must consider , " pronounce Theo . The option to draw water from the communal basin has become especially valuable . " The tendency seems to be towards dry conditions , so we demand to plan for large H2O reserves . "
In 2024 , Kaaij Kwekerij began using the USAF transmitters for the first meter . The agriculturist quickly noticed the impact on the hydrogen peroxide they were using . " We typically practice a dispirited dose of hydrogen peroxide up to 10 ppm , but 2 to 3 weeks after installing the vector , the atomic number 1 hydrogen peroxide was no longer noticeable . Ultramins explain that this happened because the transmitter , in combination with the hydrogen hydrogen peroxide , were in effect breaking down the biofilm , which proved true . The timbre of the irrigation water supply now depend fantabulous , and we measure out our usual hydrogen peroxide grade again . We can even reduce our hydrogen hydrogen peroxide custom since the Ultramins transmitter make it more effective . "
Eric van Velzen and Theo van der Kaaij checking out the water supply quality in the bassin of Gietwater Berlikum
Cleaner filtersOne of Gardener ’s Pride ’s locations in the area , acquired from a colleague eight years ago , relies exclusively on urine from the communal man-made lake . The company supports the conclusion to clothe in Ultramins transmitters for the communal reservoir . " Since we started using the transmitters , the filter at our locating , which exclusively bet on H2O from the communal reservoir , have improved . We do n’t have to backwash them as often due to rock-bottom contamination . "
For Gardener ’s Pride ’s other locations , the growers ' concerted Oxin Growers enthrone in USAF transmitters using SIG&F subsidy funding for their phallus . Now , transmitters are set up in the grower ’s individual water lavatory , casual storage silos , and even in the waste drainage silo .
For the waste drain silo , the USAF MT 600 Watt , the most muscular transmitter in the Ultramins kitchen range , was selected . Eric van Velzen from Ultramins explains : " The capacity needed is regulate by a company ’s water supplying requirement on the red-hot day . This approach insure that there is always sufficient capacity . "
Grower Marco is satisfied with the carrying into action of the sender across his Frisian location . " Thanks to the investment funds Oxin Growers made for us , the UV disinfectant is now fly the coop more systematically , and the T10 value have improved . " By using vector at various points in his irrigation systems , he ’s achieved double piddle treatment in multiple region . " I ca n’t think of anything else I would need to do here . "
USAF ™ MT 600 Watt , the most powerful transmitter in Ultramins ' range , in silo at Gardener ’s Pride
Frisian growers set a good exampleUltramins now provides USAF cavitating supersonic transmitters in over 50 countries . Eric remains surprised at how often the importance of water is underestimate . " Water flows through your nursery like a train , stopping at every station . In gardening , we focus hard on above - ground action , but it ’s crucial to pay particular care to what pass underground as well . "
The cultivator in the magnetic north of the Netherlands translate the importance of high - quality irrigation piss and have collaborated both together with and individually to enhance water quality . They find the irrigation water from the communal basin satisfactory , as the filters remain clean and the water is clear . Theo and Eric confirm this after double - checking with a bottleful sampling .
Eric apprize that it ’s a good idea to occasionally remove sediment from the bottom of the drainage area . If extreme drouth causes the communal washstand to empty this year , it would be the staring opportunity to do so . However , the growers aim to keep the basin satisfy and the irrigation water clean . With the avail of the USAF cavitating ultrasonic transmitters , they ’ve successfully managed this , as issues with alga , biofilm , and pathogens in the water are now a thing of the past .
USAF ™ is a trademark of Luijkx Ultrasound B.V.
For more information : Ultramins B.V.+31(0 ) 85 023 10 97[email protected]www.ultramins.com
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