摘要：

采用钌钛网为阳极、钛网为阴极的电催化氧化装置深度处理焦化废水,研究了电流密度、极板数量、反应器结构、污水流态及流速对COD去除及处理能耗的影响。结果表明,在电极板4对、电流密度100 A/m²、推流循环流态、流速50 mL/min、处理时间120 min的条件下,电能利用率最高,装置对污水COD的去除率达到58.8%,COD去除能耗为78.6 W.h/g。

关键词: 电催化氧化, 焦化废水, 钛电极

Abstract:

The electro-catalytic oxidation equipment has used Ti/RuO₂ mesh as anode,and titanium mesh as cathode for the advanced treatment of coking wastewater.The effects of current density,the number of polar plates,reactor structure,waste-water flow state and flow velocity on COD removing rate and energy consumption are studied.The results show that when four pairs of polar plates are used,the current density is 100 A/m²,plug-flow circulation flow state,the flow velocity is 50 mL/min,and treatment time is 120 min,the electrical energy utilization is the highest,the COD removing rate reaches 58.8% and the energy consumption of COD removal is 78.6 W·h/g.

Key words: electro-catalytic oxidation, coking wastewater, titanium-based electrodes

中图分类号: 

• X703.1