By 2027 , the quality of aerofoil piss must comply with ( stringent ) European necessary . Whether the horticultural sphere will meet the standards by that time is highly questionable . Although major step have been assume in purification and recycling , mensuration show that progress is leveling off .
Why that is and what need to be done to still achieve the required weewee caliber was the theme of the Water Day hold this week in the World Horti Center ( WHC ) in Naaldwijk . A panel consisting of Dijkgraaf Piet - Hein Daverveldt , Royal Brinkman urine engine driver Joshua Reijnen , plant dietitian Geerten van der Lugt and chairwoman of the Westland region of Glastuinbouw Nederland Jacco Vooijs presented their finding .
From the left : Dijkgraaf ( chairman of water board ) Piet - Hein Daverveldt , Royal Brinkman body of water engineer Joshua Reijnen , plant dietitian Geerten van der Lugt and chairman of the Westland region of Glastuinbouw Nederland Jacco Vooijs .
Water wasting disease is increasingA few takeaway . Of all the H2O down by horticulture , some 30 % is recirculated . It can not be much more than that because the lion ’s share evaporates and goes out the windowpane . At the same sentence , production is still on the ascent , so a net increase in irrigation weewee is still needed every year .
( Sub)consciouslyIt is gauge that 2 % of all water entering the glasshouse leaks out . That is a slew , and the seriousness and extent of the trouble are not sufficiently understood . At the same clip , the leak is usually unintentional and not due to so - called ' stinky apples ' ( for there are barely any left ) . Therefore , the motto is : jump a targeted search , examine your total society , be aware of your own situation , and do not be taken by surprise . In this esteem , no one should be able to pretend they have no thought .
EnforcementEnforcement is also a tricky egress . As someone from the Water Board pointed out to the audience , the relevant authorities implement the law , not H2O quality . activity can be taken in the consequence of clear encroachment , but the ' obligation of fear ' is already a baffling class ; nature itself is also freakish . The phenomenon of ' secondary poisoning ' was mention several times , the phenomenon that a polluted soil or ditch can continue to free nutrients , chemical substance , and other substances for years afterwards , altogether unrelated to the actual activities above ground . In other intelligence , what just to value , and how exactly to appraise it is not so unclouded yet .
WorkshopsAfter the plenary part , a series of workshops looked at ways of further improving water timbre in and around the greenhouse , from various angles , in ordering to ensure that sufficient irrigation body of water would also be available in the future .
Jos Berends ofGrodanexplained how to give improvement and monetary value nest egg can be achieved through the impertinent purpose of the substrate .
Thomas Verburg , possessor ofCindro , spoke about the indium and outs of houseclean the water organization with stabilized H peroxide , with or without combination with a nanobubble social unit .
Martijn Blind of Vertify shared the findings of the external research project into the cultivation on weewee Hy4Dense . Specifically , the project looks at the possibilities of grow young vegetable plants in ( even ) higher tightness . More information can be foundhere .
Dick Breugem of Van Iperen . To get the nutrients to the plant in the practiced and most effective way , good pee quality is crucial . Van Iperen is therefore happy to expect at and measure the water organisation in parliamentary law to provide tailor - made advice .
Djolene van den Berg of the Delfland Water Board explain how they appraise , what they measure , and where they quantify . In rationale , all data is public ( see thisdashboard ) , but the head is how to make it more transparent . Conversely , it is authoritative to know exactly what data one wants to see and how it can best be introduce .
Micha van Nieuwkerk ofVan der Ende Groeptalks about disinfecting the waste pipe using ultrafiltration , an exist proficiency that until of late was comparatively unknown in the horticultural sector .
Jolijn Bonnet of the Control in Food & Flowers Foundation is researching the sensing of the use of cleaned sewerage , call in effluent , as irrigation water in gardening . Tests have register that this is possible , but there is still study to be done in terminal figure of practical implementation and , so to speak , in between the great unwashed ’s ears .
Frank Hoeberichts ofEurofinstalks about the various techniques for find pathogens , computer virus , bacterium , and any other constituents in a water supply sample . The latest technique is a so - called microbiome analysis , with which literally " everything " can be find out and classified .
The day was organized by Glastuinbouw Nederland in collaboration with the WHC and Vertify . Eighty hoi polloi had registered , and engagement could also count towards the granting of the Sprayer ’s Licence for Crop Protection Operations , section Safety and Technology .
© FloralDaily.com/Geert Peeters
