Up-flow three-dimensional electro-catalysis device

Abstract

The invention discloses an up-flow three-dimensional electro-catalysis reactor comprising a water inlet, a stirring region, a reaction region, a stabilizing region, a separation region and a water outlet which are sequentially distributed from bottom to top; the stirring region is provided with single or a plurality of stirring paddle devices by which a catalyst is sufficiently mixed with wastewater and the wastewater is also uniformly stirred to sufficiently react; the reaction region is provided with a plurality of pairs of anode form-stable titanium plates and cathode stainless steel plateswhich are arranged in parallel and used for energized electro-catalysis operation; the reaction region is distributed with a nickel-based powdery catalyst for increasing the electro-catalysis degradation efficiency; the stabilizing region is provided with vertical diversion trenches by which a water body is partitioned into a plurality of flowing regions, and the stabilizing region is used for stabilizing swirling wastewater to ensure that the swirling wastewater stably rises so that the powdery catalyst in the water body is separated; the separation region is provided with a three-phase separator for separating the residual powdery catalyst from gas bubbles generated by electro-catalysis; and all the stirring region, the reaction region, the stabilizing region and the separation region are located in the same cylinder.

Description

technical field [0001] The invention relates to the technical field of electrochemistry and water pollution control, in particular to an upflow three-dimensional electrocatalytic reactor for treating refractory organic waste water using three-dimensional electrocatalysis technology. Background technique [0002] The treatment of high-concentration refractory organic wastewater is a recognized problem in domestic and foreign sewage treatment circles. The main sources of this type of wastewater are coking wastewater, pharmaceutical wastewater, petrochemical / oil wastewater, textile wastewater, chemical wastewater and landfill leachate. The so-called high concentration refers to the high concentration of organic matter in this type of wastewater. Generally, the COD value is above 2000mg / L, and some even reach tens of thousands to hundreds of thousands of mg / L. The so-called refractory refers to the low biodegradability of this type of wastewater BOD 5 / COD values ​​are general...

AI Technical Summary

Problems solved by technology

At present, there is no uniform evaluation standard and specification for the design and development of electrocatalytic reactors. Therefore, it is urgent to develop efficient and reasonable new electrocatalytic reactors.

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