摘要
以铜渣为原料,采用碳热还原法制备了一种Fe-Cu-C三元微电解材料,用于去除选矿废水中的苯甲羟肟酸(BHA)。制备条件试验结果表明,在焙烧温度为1100℃、焙烧时间40 min、无烟煤用量为35%条件下制备的Fe-Cu-C对BHA的去除效果最好。采用XRD、SEM和EDS对Fe-Cu-C进行表征,结果表明该材料呈多孔结构,是一种以Fe-Cu-C合金、Cu-Fe-C合金、游离碳为主要有效成分和以石英为载体的负载型三元微电解材料。反应条件试验结果表明,在溶液温度为28℃条件下,2.50 g/L的Fe-Cu-C对pH为4.0~9.0的50 mg/L的BHA的去除率达86%以上。Pb(NO_(3))_(2)、Na_(2)CO_(3)对Fe-Cu-C去除BHA影响不大,而Na2SiO3对其有一定的抑制作用。
Fe-Cu-C ternary micro-electrolytic material was prepared by carbothermal reduction method with copper slag as raw material to remove benzohydroxamic acid(BHA)from mineral processing wastewater.The experimental results of preparation conditions showed that Fe-Cu-C prepared at 1100℃,40 min and 35%anthracite had the best effect on the removal of BHA.The Fe-Cu-C was characterized by XRD,SEM and EDS.The results showed that the material had a porous structure and was a supported ternary micro-electrolytic material with Fe-Cu-C alloy,Cu-Fe-C alloy,free carbon as the main active component and quartz as the carrier.The experimental results of reaction condition showed that 2.50 g/L Fe-Cu-C could remove more than 86% of 50 mg/L BHA at the solution temperature of 28℃ and pH of 4.0-9.0.Pb(NO_(3))_(2) and Na_(2)CO_(3) have little effect on Fe-Cu-C removal of BHA,while Na2SiO3 had certain inhibitory effect.
作者
朱亮亮
陈江安
余文
唐作珍
ZHU Liangliang;CHEN Jiangan;YU Wen;TANG Zuozhen(College of Resources and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;School of Civil and Surveying Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2024年第2期118-124,共7页
Industrial Water Treatment
基金
江西省主要学科学术技术带头人培养计划(20212BCJL23051)
江西省重点研发计划(20203BBGL73232)
江西理工大学清江优秀青年人才计划(JXUSTQJYX201806)
国家大学生创新创业培训计划项目(202010407005)。
关键词
铜渣
碳热还原
三元微电解
苯甲羟肟酸
copper slag
carbothermal reduction
ternary micro-electrolytic
benzohydroxamic acid
