A large volume of wastewater containing ink pigments and heavy metals must be treated
When dismantling ink cartridges and toners, a cleaning phase is necessary to remove residue. Cleaning is carried out using an aqueous solution mixing cleaning product and reverse osmosis water. These water cleaning phases generate a daily volume of wastewater of around 3m3. This wastewater mainly contains ink pigments, heavy metals and has a Chemical Oxygen Demand - COD higher than required for a discharge in accordance with the wastewater treatment plant.
Since it does not have a wastewater treatment unit, our Customer must store its cleaning water before being removed for disposal by an external service provider, on a regular basis. Such storage without prior treatment presents a significant environmental risk. This involves the development of a retention storage area and incurs substantial costs for disposal and reprocessing by an external service provider.
Determined to reduce its expenses and limit its environmental impact, our Client decides to call on NISKAE for a water treatment micro-station suitable for industrial use. The objective of our Client is to treat the cleaning water for discharge to the wastewater treatment plant in accordance with the regulations in force.