三维粒子电极填充方式对焦化废水深度处理能耗的影响  

INFLUENCE OF STACKING PATTERN OF 3D PARTICLE ELECTRODES ON ELECTRICITY CONSUMPTION IN ADVANCED TREATMENT OF COKING WASTEWATER

作　　者：冯壮壮[1] 梁文艳[1] 王海东[2] 高康乐[2] 逯博特[2] 邹元龙[2] 唐凤君 

机构地区：[1]北京林业大学环境科学与工程学院,北京100083 [2]中冶建筑研究总院有限公司,北京100088 [3]攀钢集团西昌钢钒公司能源管理部,四川攀枝花615000

出　　处：《环境工程》2015年第2期7-10,47,共5页Environmental Engineering

基　　金：国家水体污染控制与治理科技重大专项(2013ZX07209)

摘　　要：采用钌钛网(Ti/Ru O2)为阳极、钛网(Ti)为阴极、活性炭颗粒为三维粒子电极的电催化氧化装置深度处理焦化废水,通过分析处理效果和能耗研究了三维粒子电极填充方式的影响。结果显示三维悬挂电极填充方式的处理效果和能耗与传统三维电极填充方式相近,但所需材料质量及反应器容积分别为后者的34%与67%。新的填充方式在电流密度2.5 m A/cm2、悬挂电极总质量49.4g、流速100 m L/min的条件下处理120 min后,焦化废水ρ(COD)由99 mg/L降至53 mg/L,COD去除率为46.5%,单位COD处理能耗为68.5 k W·h/kg,吨水能耗为3.15 k W·h/t。An electro-catalytic oxidation reactor for advanced treatment of coking wastewater was designed,which used Ti /Ru O2 mesh electrode as anode,titanium mesh electrode as cathode,and granular active carbon as 3D particle electrodes. The influence caused by the stacking pattern of particle electrodes was investigated on analyzing the treatment effect and electricity consumption. The results indicated that the hanging style three-dimensional electrodes in the reactor achieved nearly the same treatment efficiency and electricity consumption compared to the traditional stacking pattern. While the amount of material usage and the reactor volume were 34% and 67% of the traditional ones. With the current density of 2. 5 m A/cm2,the hanging particle electrodes mass of 49. 4g,and flow rate of 100 m L/min,COD could be degraded from 99 mg/L to 53 mg/L within 120 min. The COD removal rate was 46. 5%,the electricity consumption of the reactor was 68. 5 k W·h with removing per kilogrom of COD,and 3. 15 k W·h with treating a ton of wastewater.

关 键 词：三维电极 填充方式 焦化废水 能耗 

分 类 号：X784[环境科学与工程—环境工程]