Wastewater treatment and recycling
We collect oily wastewater and used acid, alkali and other liquid wastes that are discharged in connection with businesses' production activities, and treat and recycle these through combined chemical pretreatment and activated sludge treatment. We analyze collected samples in detail and select a treatment method that best matches the properties of the liquid waste based on our extensive experience and database. Compound treatment, which combines multiple types of highly difficult-to-treat wastewater in chemical pretreatment to reduce their treatment difficulty, is a know-how unique to Daiseki, which has extensive experience in processing large volumes and varieties of wastewaster. We also recover ammonia and useful metals such as copper and nickel for recycling and for promotion of circular economy.