CAJ | 학술논문

目的研究简单高效的处理方法去除尿碘检测废液中的高砷,以达到国家砷排放标准,保护环境.方法采用氢氧化钙-硫酸亚铁混凝二次沉降法处理检测废液,二乙基二硫代氨基甲酸银分光光度法检测含砷量.结果一级处理加氢氧化钙72.0g/L,硫酸亚铁51.6 g/L;二级处理加氢氧化钙1.0 g/L,硫酸亚铁4.5g/L.经二级处理后检测废液pH值为6.67,含砷量低于0.33 mg/L,砷去除率高达99.99%以上,可安全排放.结论本方法可作为<尿中碘的砷铈催化分光光度测定方法>(WS/T 107-2006)方法的补充,去除尿碘检测废液中的高砷,达到国家砷排放标准,建议在尿碘测定实验室推广,减少砷污染的危害.
목적 연구간단고효적처리방법거제뇨전검측폐액중적고신,이체도국가신배방표준,보호배경.방법 채용경양화개-류산아철혼응이차침강법처리검측폐액,이을기이류대안기갑산은분광광도법검측함신량.결과 일급처리가경양화개72.0g/L,류산아철51.6 g/L;이급처리가경양화개1.0 g/L,류산아철4.5g/L.경이급처리후검측폐액pH치위6.67,함신량저우0.33 mg/L,신거제솔고체99.99%이상,가안전배방.결론 본방법가작위<뇨중전적신시최화분광광도측정방법>(WS/T 107-2006)방법적보충,거제뇨전검측폐액중적고신,체도국가신배방표준,건의재뇨전측정실험실추엄,감소신오염적위해.
Objective To explore a simple and high efficient way of removing high-density arsenic from experimental waste of iodine determination in urine in order to meet the waste water discharge standards and to protect the environment. Methods The detection waste solution was dealt with by using the method of calcium hydroxide-ferrous sulfate, and the arsenic contents were detected by silver diethyldithiocarbamate spectrophotometric method. Results The first treatment was conducted by adding the calcium hydroxide 72.0 g/L and the ferrous sulfate 51.6 g/L, and the second by adding 1.0 g/L calcium hydroxide and 51.6 g/L ferrous sulfate. The arsenic content was less than 0.33 mg/L and the pH was 6.67 after being treated. The removal rate was more than 99.99%, and the sludge was stable without secondary pollution. Conclusions The approach can be used as the necessary supplement of WS/T 107-2006, removing high-density arsenic from experimental waste of iodine determination in urine in order to meet the waste water discharge standards and to protect the environment, and should be popularized in the determination of iodine in urine.