A UV oxidation pretreatment system for recalcitrant and highly toxic wastewater

Abstract

This utility model relates to the field of environmental protection technology, and in particular to an ultraviolet oxidation pretreatment system for recalcitrant and highly toxic wastewater. The system includes a wastewater collection section, a reagent addition section, and a wastewater treatment section. The wastewater treatment section includes a reaction vessel, with the output end of the wastewater collection section connected to the reaction vessel. The reagent addition section includes a hydrogen peroxide dosing tank, with its output end connected to the reaction vessel. The system also includes an ultraviolet (UV) device with a wastewater circulation channel. The reaction vessel has a wastewater circulation outlet and a wastewater circulation inlet, with both ends of the wastewater circulation channel connected to the wastewater circulation outlet and inlet, respectively. This utility model features a simpler and more rational structural design, enabling targeted treatment of highly toxic and poorly biodegradable wastewater, thus improving wastewater treatment efficiency.

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