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Thermodynamic study on reaction path of Hg（ II ） with S（ II ） in solution
  • ISSN号：1003-6326
  • 期刊名称：《中国有色金属学报：英文版》
  • 时间：0
  • 分类：TG146[金属学及工艺—金属材料;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 作者机构：[1]中南大学冶金科学与工程学院,长沙410083
  • 相关基金：Project （2009ZX07212-001-01） supported by the Major Science and Technology Program for Water Pollution Control and Treatment China; Project （50925417） supported by the National Natural Science Foundation for Distinguished Young Scholars of China; Projects （50830301 51074191） supported by the National Natural Science Foundation of China
作者： 柴立元[1], 王庆伟[1], 王云燕[1], 李青竹[1], 杨志辉[1], 舒余德[1]
关键词： 铁系, 生物聚合铁, 絮凝剂, ferrite, poly-ferric sulfate, flocculant
中文摘要：

研究生物法制备铁系絮凝剂及其影响因素。以FeSO4·7H2O为原料,利用驯化后的氧化亚铁硫杆菌（T·f）在酸性条件下的催化氧化作用制备生物聚合硫酸铁（PFS）,并确定最佳制备条件。实验表明：在反应液初始pH值1.5、硫酸铵用量0.5g/L、初始Fe2＋浓度45g/L、接种量10%、温度30℃时,在转速为120r/min的恒温水浴摇床中连续培养5～6d、可以制出pH1.5～2.2、盐基度17.5%～22.7%、全铁含量43.87～45.24g/L的产品。实验通过处理3种废水来考察其絮凝性能,结果表明：当PFS投加量一定时,COD去除率可达70%以上,脱色率达90%,Zn2＋去除率达99%,说明PFS是一种絮凝效果优异的水处理剂。

英文摘要：

A novel inorganic polymer flocculant,poly-ferric sulfate（BPFS） was prepared by oxidation of ferrous sulfate using domestic Thiobacillus ferrooxidans（T·f） under acid condition.The optimal conditions for the preparation were pH value of 1.5,（NH4）2SO4 dosage of 0.5 g/L,initial Fe2＋ concentration of 45g/L,inoculum 10%,rotating speed of 120 r/min,reaction time of 5-6 d and reaction temperature of 30 ℃.Under the optimal conditions,the BPFS product with pH value of 1.5-2.2,basicity of 17.5%-22.7% and total iron content of 43.87-45.24 g/L was obtained.The application of the BPFS to three wastewaters was carried out,and the removal efficiencies of COD,decolorization and Zn2＋ by BPFS can be reached 70%,90% and 99%,respectively.The result suggests that the BPFS is an excellent flocculant for water treatment.

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期刊信息
  • 《中国有色金属学报：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国有色金属学会
  • 主编：黄伯云
  • 地址：中国长沙中南大学
  • 邮编：410083
  • 邮箱：f-xsxb@csu.edu.cn
  • 电话：0731-88830949
  • 国际标准刊号：ISSN：1003-6326
  • 国内统一刊号：ISSN：43-1239/TG
  • 邮发代号:42-317
  • 获奖情况:
  • 国家“双百”期刊,第二届全国优秀科技期刊评比二等奖,中国有色金属工业总公司优秀科技期刊一等奖
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  • 被引量:1159