交变磁场影响聚合硫酸铁溶液的机理浅析

发布时间：2018-01-30 14:22

本文关键词： 交变磁场聚合硫酸铁晶体结构紫外光谱碱滴定曲线形态分布　出处：《硅酸盐通报》2016年07期 　论文类型：期刊论文

【摘要】：以聚合硫酸铁(PFS)为研究对象,采用红外(FTIR)、X射线衍射(XRD),确定了磁化对PFS结构的影响;以碱化度(B=OH/Fe)和静置时间为变量,进行pH、紫外(UV)以及Fe-Ferron逐时络合比色法测定,分析了磁化对PFS水解的影响。通过实验证明:磁化作用并没有使PFS形成新羟基健化合物;随着B的升高,磁化使PFS溶液的pH升高,UV下300 nm附近的吸收峰下降减缓;随着静置时间的增加,磁化使Fe(c)含量增长速率减慢。磁化对PFS水解的影响可能是在交变磁场的作用下,Fe~(3+)离子与水分子发生水缔结作用,形成新的水合物,多了一层水合层,阻碍了Fe(a),Fe(b)向Fe(c)转化。
[Abstract]:The effect of magnetization on the structure of PFS was determined by X-ray diffraction (XRD). The pH, UV and Fe-Ferron chelate colorimetric methods were used to determine the pH, UV and Fe-Ferron. The effect of magnetization on the hydrolysis of PFS was analyzed. It was proved by experiments that the magnetization did not result in the formation of new hydroxyl compounds by PFS. With the increase of B, the decrease of the absorption peak near 300nm of PFS solution decreases with the increase of pH value of PFS solution. With the increase of static time, magnetization slows down the growth rate of Fec content. The effect of magnetization on the hydrolysis of PFS may be due to the effect of alternating magnetic field. Fe~(3) ions interact with water molecules to form new hydrates, resulting in an additional layer of hydration layer, which hinders the conversion of Fe~(3 to Fehlc).
【作者单位】：盐城工学院土木工程学院;内蒙古科技大学能源与环境学院;
【分类号】：TQ085
【正文快照】： 1引言在水处理技术中,由于单一水处理技术的局限性,复合型水处理技术的应用越来越受到关注[1,2]。聚合硫酸铁(PFS)具有安全无生物毒性,用量少,沉淀效果好,水处理成本低等优点,而延克军等[3,4]用交变磁场对PFS溶液加以磁化,与普通PFS相比,交变磁场作用下的PFS(以下均简称磁化PF

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