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DTSTART;VALUE=DATE:20500604
DTEND;VALUE=DATE:20500605
DTSTAMP:20260929T004451
CREATED:20210601T131209Z
LAST-MODIFIED:20210602T145400Z
UID:11010-2537913600-2537999999@suwanu-europe.eu
SUMMARY:The use of Ecogreen in the selective removal of sodium in reclaimed wastewater
DESCRIPTION:The use of Ecogreen in the selective removal of sodium in reclaimed wastewater\n\n		\n	\n\n	\n		\n			Partners 4 Water\n\n		\n	\n\n	\n		\n			 \nWaste water source\nTreated effluent is delivered by the urban WWTP of Aquafin located in Mechelen-Noord (province of Antwerpen). The drain water is collected and reused as irrigation water. \n\n		\n	\n\n	\n		\n			 \nDistribution System\nEvery week 2 to 4 m³ of freshly purified effluent is supplied in cubicle vessels\, which are stored under shady conditions. From these cubicle vessels the water is distributed over a greenhouse with a floor area of 160 m². \n\n		\n	\n\n	\n		\n			 \nFarming system\nThe greenhouse is furnished as is customary in the practical greenhouses for cucumber cultivation on rock wool substrate (Grodan GT Master). It is equipped with autonomous irrigation\, recirculation and climate controls\, which can be operated independently. \n\n		\n	\n\n	\n		\n			 \nWaste water treatment description\nThe WWTP effluent is purified to achieve the minimum water quality standards set for minimum quality requirements for water reuse. For this\, a purification train was chosen consisting of sand filtration (suspended particles up to 20 microns)\, activated carbon filtration (removal of pesticide residues) and ultrafiltration (removal of fungi\, bacteria and viruses on carrier). Due to the high sodium concentration\, the water of the Aquafin-Na+ treatment was desalted via selective sodium removal based on electrodialysis by EcoGreen (WaterFuture). \nThe EcoGreen (WaterFuture) is used to prevent the accumulation of sodium and chlorine in the hydroponic system. The technology uses capacitive electrodialysis to remove monovalent elements from the Aquafin effluent. \n\n		\n	\n\n	\n		\n			 \nCapacity\nThe pilot EcoGreen capacity amounts 0\,5m³/h. \n\n		\n	\n\n	\n		\n			 \nExtent of the agricultural beneficiaries\nWithin the trial\, the supplied Aquafin effluent was purified until the target value of 0.3 mS/cm was reached\, which is close to the EC value for the reference treatment. In general\, the proposed EC value of 0.3 mS/cm could be achieved. During the treatment with the EcoGreen\, an average of 61% sodium was removed and an average of 78% of the chlorine. \n\n		\n	\n\n	\n		\n			 \nCosts\n  \nThe treatment costs and distribution costs will be defined by the end of 2021. \n\n		\n	\n\n	\n		\n			 \nScientific results\n\n		\n	\n\n	\n		\n			 \nType of agreement\nThis demonstration and research takes place within the context of an cooperation between Aquafin (WWTP operator)\, Imec the Netherlands and The Research Station for the Vegetable Production (PSKW).
URL:https://suwanu-europe.eu/project/ecogreen-selective-sodium-removal/
LOCATION:Sint-Katelijne-Waver\, Duffelsesteenweg 101\, Sint-Katelijne-Waver\, Antwerp\, 2860\, Belgium
CATEGORIES:Initiative
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