Innovative water treatment system for horticulture
DNRI ACAO’s high-impact, low-cost, combined water treatment system makes near-zero horticulture emissions possible.
From 2022 horticulturists throughout Europe must meet new regulations for zero emission of pesticides in water released into sewer systems; a huge challenge that could require major investment in used-water treatment. In 2018 the Dutch authorities already take a big step towards reaching that goal by imposing a mandatory removal of 95% of all organic products added to the water by individual horticulturists. The award-winning DNRI ACAO system, developed by Van Remmen UV-Techniek and Bruine de Bruin, is highly-effective, flexible and affordable and opens a feasible window for the growers to reach the new regulatory goals.
The system combines existing techniques, including advanced oxidation and activated carbon to remove pesticides, hormones, medicines and other undesired compounds from water. The UV stage of the system uses a treatment technology called Advanced Oxidation Process (OAP).The treatment uses UV light together with hydrogen peroxide to generate radicals that essentially burn harmful chemicals in the water without harmful byproducts. This results in clean water that can be released into sewer systems or reused for recirculation to the greenhouse, fully disinfected with the nutrients untouched - depending on the horticulturist’s preference.
DNRI ACAO can be tailor-made to the customer’s needs by, for example, altering the order in which activated carbon and UV oxidation are employed in the treatment process. Its fundamental ideas are highly scalable, so a solution for every volume and process is possible.
Van Remmen and Bruine de Bruin are currently optimizing the system to make it just as effective - without using activated carbon. This allows the grower to save even more money, without compromising on water quality. This is possible because the grower isn’t discharging water continuously. The time in which the system would normally be idle can be used to yield the same results with a smaller, sustainable and more affordable system.
The system combines existing techniques, including advanced oxidation and activated carbon to remove pesticides, hormones, medicines and other undesired compounds from water. The UV stage of the system uses a treatment technology called Advanced Oxidation Process (OAP).The treatment uses UV light together with hydrogen peroxide to generate radicals that essentially burn harmful chemicals in the water without harmful byproducts. This results in clean water that can be released into sewer systems or reused for recirculation to the greenhouse, fully disinfected with the nutrients untouched - depending on the horticulturist’s preference.
DNRI ACAO can be tailor-made to the customer’s needs by, for example, altering the order in which activated carbon and UV oxidation are employed in the treatment process. Its fundamental ideas are highly scalable, so a solution for every volume and process is possible.
Van Remmen and Bruine de Bruin are currently optimizing the system to make it just as effective - without using activated carbon. This allows the grower to save even more money, without compromising on water quality. This is possible because the grower isn’t discharging water continuously. The time in which the system would normally be idle can be used to yield the same results with a smaller, sustainable and more affordable system.