铁铜碳三元微电解填料制备及性能的研究  

Study on Preparation and Properties of Iron-Copper-Carbon Ternary Micro-Electrolytic Filler

作　　者：王静怡 胡俊生[1] WANG Jingyi;HU Junsheng(Shenyang Jianzhu University,Shenyang Liaoning 110268,China)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《辽宁化工》2024年第9期1359-1363,1369,共6页Liaoning Chemical Industry

摘　　要：为制备更高效的微电解填料材料,在铁碳微电解体系中加入Cu,通过高温焙烧制成铁铜碳多孔微电解填料。实验表明:通过铁铜碳正交实验得出最佳铁铜碳质量比为2∶2∶5,其甲基橙及COD去除率较铁碳微电解技术分别提高11%和7.02%。利用单因素及正交实验考察造孔剂含量、膨润土含量、填料粒径、焙烧温度、焙烧时间对去除效果的影响确定最佳制备条件。结果表明:在甲基橙初始质量浓度为100 mg·L^(-1)、填料投加量为50 g·L^(-1)、曝气量为300 mL·min^(-1)、初始pH为4、反应时间为2 h时,甲基橙去除率最高。最佳制备条件为羧甲基纤维素钠质量分数为4.5%、膨润土质量分数为30%、填料直径为10 mm,焙烧温度为850℃、焙烧时间为2.5 h。对甲基橙及COD去除率达到77.27%、46.60%,表明铁铜碳三元微电解填料具有更高效的性能。In order to prepare more efficient micro-electrolytic packing materials,Cu was added to the iron-carbon micro-electrolytic system,and the porous iron-copper-carbon micro-electrolytic packing was prepared by high-temperature roasting.The results showed that the optimal iron-copper-carbon ratio was 2∶2∶5,and the removal rates of methyl orange and COD were 11%and 7.02%higher than those of iron carbon micro-electrolysis.The effects of pore-forming agent content,bentonite content,filler particle size,roasting temperature and roasting time on the removal effect were investigated by single factor and orthogonal experiment to determine the best preparation conditions.The results showed that when the initial mass concentration of methyl orange was 100 mg·L^(-1),the dosage of filler was 50 g·L^(-1),the aeration rate was 300 mL·min^(-1),the initial pH was 4,and the reaction time was 2 h,the removal rate of methyl orange was the highest.The optimum preparation conditions were as follows:mass fraction of sodium carboxymethylcellulose was 4.5%,bentonite mass fraction was 30%,filler diameter was 10 mm,roasting temperature was 850℃,roasting time was 2.5 h.The removal rates of methyl orange and COD reached 77.27%and 46.60%,indicating that the iron-copper-carbon terpolymer micro-electrolytic filler has more efficient performance.

关 键 词：微电解 复合填料 染料废水 条件优化 

分 类 号：X703.1[环境科学与工程—环境工程]