化学沉淀法脱除HPF脱硫废液中硫氰酸盐的研究.doc

修改稿PDF中所改动之处，另一word修改稿里红色部分均为改动处。 中图分类号由O633.4改为X703.1 1.2 实验水样一节下第六行，COD值为138244.4与实际测定值141800g/L改为COD值为138244.4mg/L与实际测定值141800mg/L。 1.3实验方法一节下第一行600ml改为600mL。三口瓶均改为三口烧瓶。 1.4分析方法一节下即向10~20ml样品溶液中改为即向10~20mL样品溶液中；加入2ml淀粉改为加入2mL淀粉。第三段苯酚的测定采用分光光度法，即于pH10.00.2介质中改为苯酚的测定采用分光光度法，即于pH10.00.2介质中。第四段氯酸根的测定采用化学滴定法即取2ml改为氯酸根的测定采用化学滴定法即取2mL。0.5mol/l改为0.5mol/L,放置30min后加入2ml的淀粉溶液改为加入2mL的淀粉溶液；0.1mol/l改为0.1mol/L。 表格修改：表2改为表1，Table 2改为Table 1；表3改为表2，Table 3改为Table 2。表4改为表3，Table 4改为Table 3。 2.1硫代硫酸根的脱除过程一节下第一行 列于下表改为列于表1；第三行由表2可以看出改为由表1可以看出。表1下方一行文字：计算的COD理论值为98918.4改为计算的COD理论值为98918.4mg/L。 2.2氧化过程一节下如表3所示改为如表2所示。表2下方第一行：由表中数据可以看出改为由表2数据可以看出。第10页最后一行：其各自元素的含量如下表：改为其各自元素的含量如表3：。表3下方第一行：由上表结果可知改为由表3结果中可知。 文献12没有英文信息，删除XIE Y. H. , FAN L. H . The generation and disposal of the coke oven gas HPF desulfurization waste solution.China Chemical Trade, 2011, 03 (12) :55-56 (in chinese)。文献14中聚合物的化学式 [SZ(CN)2]X没有错，不需要修改。 本人认为修改稿PDF中的英文摘要不合适，建议本人所发word里的英文摘要。 版面费本人已交过， 已请责任作者确认 退修修改稿A Study on the removal of thiocyanate from HPF desulfurization waste solution with chemical precipitation Liu Erbo Zhao Bingqiang Zhang Mingliang ZhaoWei* (Key Laboratory of Coal Science and Technology, Taiyuan University of Technology,Taiyuan 030024,China) ABSTRACT High abundance of thiocyanate (SCN-) reserves in the HPF desulfurization waste solution. Generally, the concentration of this contaminant ranges from 90 to 140 g/L and it significantly influences COD and chromaticity. In this paper, A pretreatment by adding acid to remove thiosulphate in HPF desulfurization waste solution was firstly conducted. Subsequently, the concentrated thiocyanates were removed by chlorate oxidation. In this process, the concentrated sulfuric acid and sodium chlorate were added into the solutions alternately and the pH value of mixtures was kept below 1, which could maintain the reaction stay in the stage of mild oxidation so that the SCN- could be directly transformed to precipitation. Experimental result showed that the conce