Waste liquid purification device and method based on reaction liquid production

Abstract

This invention discloses a wastewater purification device and method based on a reaction solution, relating to the technical field of wastewater treatment. The wastewater purification device based on the reaction solution includes a flotation tank, which is configured with a flotation contact zone, a separation zone, a sludge collection zone, and a clear water zone. An inlet is located at the lower part of one side of the flotation tank, and an outlet and a waste discharge outlet are respectively located in the clear water zone and the sludge collection zone on the other side of the tank. A return outlet is also provided in the clear water zone of the flotation tank. At least one aerator is installed in the flotation contact zone of the flotation tank. This invention improves the traditional flat scraper by replacing it with a J-shaped structure, overcoming the technical limitation of conventional flotation machines that can only remove surface scum. It effectively solves the problem of reduced treatment efficiency caused by the settling and residue of heavy impurities, improves the stability of the effluent water quality, and reduces the load on the subsequent sludge treatment system. It is particularly suitable for the treatment of paper recycling wastewater with high fiber and high filler content.

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