不同化学试剂脱除淡盐水中游离氯的研究

Study on dechlorination from depletede brine with the various chemical reagents

采用亚硫酸钠、焦亚硫酸钠、甲酸钠等脱除淡盐水中的游离氯，研究了pH值、温度对脱氯效果的影响。结果表明，温度对亚硫酸钠与焦亚硫酸钠的脱氯效果影响不大；pH在碱性范围内，其脱氯效率都在99．36％-99．91％；温度和pH值对甲酸钠的脱氯有一定的影响，在室温、pH值为8．3条件下，其脱氯效率为99．64％。

The free chlorine from,dilute brine was removed with sodium sulfite, sodium metabisulfite,sodium formate. The different factors influencing dechlorination including pH and temperature were investigated. The results showed temperature displayed effect on the dechlorination about sodium sulfite and sodium metabisulfite. The dechlorination efficiency reached 99.36% -99.91%. The temperature and pH displayed little influence on dechlorination about sodium formate. The dechlorination efficiency reached 99.64% at room temperature and pH value of 8.3.