摘要
采用大孔H-103阳离子交换树脂分别对配制氨氮水溶液和焦化废水进行了动态吸附试验。结果表明,在优化流量条件下,树脂对氨氮水溶液和焦化废水中氨氮的饱和吸附量分别为66.86和12.5 mg.g-1;在吸附焦化废水中氨氮的同时,树脂对焦化废水中COD、SS、钙镁离子总硬度的去除率分别为20%、27%、70%,说明焦化废水中的部分有机物、悬浮物,特别是钙、镁离子,对树脂吸附氨氮产生了较强的竞争作用,使树脂对氨氮的最大饱和吸附量降低。对吸附处理前后焦化废水的气相色谱-质谱联用分析结果表明,可能与树脂吸附氨氮产生竞争吸附的有机物主要有苯酚及其衍生物、苯胺、喹啉、吲哚和萘等。
The experiment was carried through the dynamic adsorption of resin on ammonia nitrogen solution and coking wastewater by using H-103 cation exchange resin.The results show that in the flow optimal condition,the saturated adsorption quantity of resin adsorbing ammonia nitrogen in ammonia nitrogen solution and coking wastewater are 66.86 mg·g-1 and 12.5 mg·g-1 respectively.Apart from the adsorption on ammonia nitrogen in coking wastewater,resin adsorbs COD,SS and the total hardness of calcium magnesium ions at the same time and the removal rate is 20%,27% and 70% respectively.It turns out that some organic matter and floaters,especially for the calcium and magnesium ions in the coking wastewater,lead to competitive effect on resin＇s adsorption on ammonia nitrogen.Thus the maximum saturation of resin is reduced.The analysis on coking wastewater with GC-MS before and after adsorption shows that the mainly organic matters which affect resin adsorbing ammonia nitrogen are phenol and its derivatives,aniline,quinoline,indoles,naphthalene,etc.
出处
《水处理技术》
CAS
CSCD
北大核心
2011年第11期34-37,共4页
Technology of Water Treatment
