Fe-Si-B非晶合金电极在电芬顿法处理模拟港口含油废水中的应用  

Application of Fe-Si-B amorphous alloy electrode in the treatment of simulated port oily wastewater by electro-fenton method

作　　者：王廷沣 赵英杰[1] 叶伟 赵俊杰[1] 常方 李振东 李慧婷 仪马兰 WANG Tingfeng;ZHAO Yingjie;YE Wei;ZHAO Junjie;CHANG Fang;LI Zhendong;LI Huiting;YI Malan(Tianjin Research Institute for Water Transport Engineering,Ministry of Transport,Tianjin 300456,China)

机构地区：[1]交通运输部天津水运工程科学研究所,天津300456

出　　处：《水道港口》2024年第3期461-468,共8页Journal of Waterway and Harbor

基　　金：中央级公益性科研院所基本科研业务费专项资金项目(TKS20210211)。

摘　　要：根据港口含油废水的组成,配置了含有乳化油等污染物的模拟废水,考察了Fe-Si-B非晶合金作为电芬顿体系中的阳极在降解乳化油废水中的情况,分别考察了反应时间、电流密度、初始pH值、H_(2)O_(2)投加量对反应的影响,并优化了工艺参数。实验结果表明:在反应时间为40 min、电流密度为30 mA/cm^(2)、初始pH值为3、H_(2)O_(2)浓度为20 g/L时,废水含油量去除率可达到99.91%。分析推测了电芬顿法降解乳化油废水的可能反应途径,结果表明:电芬顿体系中产生的羟基自由基的强氧化作用下将原本废水中的长链有机物部分氧化为易被生物降解的短链烷烃类有机物。为含乳化油废水的处理以及Fe-Si-B非晶合金作为电极材料的实际应用提供了良好的参考价值。Simulated wastewater including contaminants such as emulsified oil was created based on the composition of oily wastewater at ports.The performance of an anode made of Fe-Si-B amorphous alloy in an electro-fenton system for decomposing emulsified oil effluent was examined.The effects of current density,starting pH,and H_(2)O_(2) dose on the reaction were studied,and process parameters were modified.The experimental findings reveal that when the reaction period is 40 minutes,the current density is 30 mA/cm 2,the starting pH value is 3,and the H_(2)O_(2) concentration is 20 g/L,the oil removal rate of wastewater may reach 99.91%.The possible reaction pathway for the electro-fenton method′s degradation of emulsified oil wastewater was analyzed.And the results shows that the strong oxidation of hydroxyl radicals generated in the electrio-fenton system partially oxidizes the original wastewater′s long-chain organic compounds into easily biodegradable short chain alkanes.This gives a solid starting point for the treatment of emulsified oil-containing wastewater and the practical application of Fe-Si-B amorphous alloy as an electrode material.

关 键 词：电芬顿 乳化油废水 Fe-Si-B非晶合金 

分 类 号：U65[交通运输工程—港口、海岸及近海工程] X52[交通运输工程—船舶与海洋工程]