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摘要
采用三维电催化氧化为核心的工艺处理村镇垃圾中转站渗滤液,考察了不同阳极及粒子电极材料对污染物的去除效果,优选出Si/BDD电极和SnO2SbO3/GAC粒子电极构建三维电催化氧化装置。利用三维荧光光谱技术对水体中的溶解性有机物(DOM)进行定性和定量分析,并考察了三维电催化氧化与生物处理耦合工艺对降低三维电催化氧化处理成本的影响。结果表明,"三维电催化(30 mA/cm2)0.5 h+生物处理+三维电催化(15 mA/cm2) 4 h"组合工艺可以达到较好的处理效果且能耗较低,估算系统总能耗约35.97 kWh/kgCOD。
Abstract
A three-dimensional electrocatalytic oxidation process is set to treat the leachate from rural wastes transfer stations in villages and towns.The removal effects of different anodes and particle electrode materials to pollutants are investigated.Through comparison,Si/BDD electrode and SnO2SbO3/GAC particle electrode are selected to construct a three-dimensional electrocatalytic oxidation device.The dissolved organic matter (DOM) in water is determined qualitatively and quantitatively by means of three-dimensional fluorescence spectroscopy,and the influences of a coupling process between three-dimensional electrocatalytic oxidation and biological treatment on the treatment cost of three-dimensional electrocatalytic oxidation are evaluated.The results show that "three-dimensional electrocatalytic (30 MA·cm-2) 0.5 h+biological treatment+three-dimensional electrocatalytic (15 mA·cm-2) 4 h" coupling process can deliver better treatment effect and lower energy consumption.It is estimated that total energy consumption of the system is about 35.97 kwh·kg-1 COD.
关键词
垃圾中转站
/
组合工艺
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电催化氧化
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三维电极
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渗滤液
Key words
wastes transfer station
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combined process
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electrocatalysis oxidation
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three-dimensional electrode
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leachate
三维电催化氧化及其组合工艺处理村镇垃圾中转站渗滤液的研究[J].
现代化工, 2023, 43(4): 130-136 DOI:10.16606/j.cnki.issn0253-4320.2023.04.025