摘要
采用10μm的Fe-Si-B非晶复合微粉和300目铁粉作为去除水体中重金属离子Cu(Ⅱ)的反应材料,对比研究了去除水体中重金属离子的能力。结果表明,在20 min以内,0.5 g/L Fe-Si-B非晶复合微粉将500 mg/L的Cu(Ⅱ)去除效率达到98%以上;Fe-Si-B非晶复合微粉反应速率系数kobs为0.236 min-1,300目铁粉的反应速率系数为0.087 min-1,去除速率远远高于铁粉,并且去除过程符合伪一级动力学模型。
Using 10μm Fe-Si-B amorphous composite powder and 300 mesh iron powder as the reaction material for removing heavy metal ions from water,the removal ability of heavy metal ions from water was compared and studied.The results show that the removal efficiency of 500 mg/L Cu(Ⅱ)by 0.5 g/L Fe-Si-B amorphous composite powder is more than98%within 20 min.The reaction rate coefficient kobs of Fe-Si-B amorphous composite powder is 0.236 min-1,300 mesh iron powder is 0.087 min-1,and the removal rate is much higher than that of iron powder,and the removal process conforms to the pseudo-first-order kinetic model.
作者
李世霞
梁俊刚
赵雅
贾宝丽
LI Shixia;LIANG Jungang;ZHAO Ya;JIA Baoli(Key Laboratory of Metallurgical Technology,Gansu Iron and Steel Vocational and Technical College,Jiayuguan 735100,China)
出处
《铸造技术》
CAS
2021年第2期81-84,共4页
Foundry Technology
基金
甘肃省高校创新基金(2019A-242)
自然基金项目(20JR5RB605)
科技计划项目(18JR2RB001)
