A sludge phosphorus release and phosphorus crystallization recovery device

Abstract

This invention relates to the field of water treatment technology, specifically to a sludge phosphorus release and phosphorus crystallization recovery device, comprising a phosphorus release mechanism and a phosphorus crystallization recovery mechanism. The phosphorus release mechanism includes a sludge thickening unit, a sludge breaking component, and a sludge dewatering unit; the sludge breaking component includes a sludge breaking unit and a pH adjustment unit; the phosphorus crystallization recovery mechanism includes an outer shell, a middle shell, an inner shell, a flow-pushing and stirring component, a baffle vortex component, a modular vortex component, an inclined plate component, and a micro-nano aeration disc. The outer shell, middle shell, and inner shell combine to form a unique circulation channel. Combined with the micro-nano aeration disc, small crystal particles enter the circulation channel as seed crystals, providing readily available nucleation sites for the solution, reducing the critical supersaturation required to form new crystal nuclei, reducing the probability of spontaneous nucleation, inhibiting the formation of irregular dendritic or needle-like crystals, and promoting the formation of denser, more uniform prismatic or plate-like large crystal particles, thus achieving efficient phosphorus release and phosphorus crystallization recovery.

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