分光光度法测定乳化含硫污水中铁含量

Determination of Iron Content in Emulsified Sulfur-containing Sewage by Spectrophotometry

针对乳化含硫污水进行了不同类型的破乳实验,对破乳后的样品进行了铁含量的测定以确定适用于含硫污水的破乳方法。通过控制单一变量研究乳化含硫污水铁含量测定过程中的影响因素,确定了样品体积为50 mL时,正丁醇加入量为2.5 mL、盐酸加入量为5滴,消解后调节样品pH=4.5的实验方案。通过实验验证,方法适用于乳化含硫污水铁含量的测定。

In this paper,different types of demulsification experiments have been carried out inemulsified sulfur-containing sewage,and the iron content of the samples through demulsification has been tested to determine the demulsification method which is suitable for sulfur-containing sewage.By controlling a single variable to study the influencing factors in the determination of iron content in emulsified sulfur-containing wastewater,the experiment condition is identified:sample volume is 50 mL,the addition amount of n-butanol is 2.5 mL,the addition amount of hydrochloric acid is 5 drops,and the pH of the sample is adjusted to 4.5 after digestion.It is verified by experiments that the method is suitable for the determination of iron content in emulsified sulfur-containing sewage.