电解氢氧化钠水溶液处理十二碳硫醇恶臭污水

采用电解NaOH水溶液配合活性炭催化氧化法来处理十二碳硫醇恶臭污水,并进行了初步的实验研究,取得了良好的效果。实验用的直流电解槽以石墨作为阳极,有效面积为30cm^2;不锈钢作为阴极,有效面积为9cm^2,并保持两极极板距离20mm。实验结果表明,在电流3A条件下电解质量分数为1％的NaOH水溶液,以活性炭作催化剂,反应温度为20℃,反应时间10～30s可以去除十二碳硫醇恶臭物质。处理后的污水无色无臭,可以直接排放。

A NEW WAY TO TREAT STENCH WASTEWATER WITH DODECYL MERCAPTAN BY ELECTROLYZING HYDROXIDE SODIUM SOLUTION

This paper aims to introduce a technological process for oxidizing wastewater stench sulfide with dodecyl mercaptan by electrolyzing NaOH with activated carbon. Since the dodecyl mercaptan is a colourless or light-yellow liquid with stench and toxic effect to human beings, it makes the present author take interest in making a series of preliminary experiments. While direct current electrolytic cell with black lead as anode and stainless steel as cathode has been used in the experiment, the effective area of the black lead electrode and stainless steel electrode are 30 cm2 and 9 cm2 respectively with the distance of the two electrodes is 20 mm. As a result, when electrolyzing 1%( mass percentage) NaOH with certain current and the reaction temperature of 20 "C and the reaction time lasting 10-30 sec, the stench dodecyl mercaptan can be expected to get rid of. The wastewater treated in the above way is colorless and scentless, which will be available for direct drainage.