电解锰废水中氨氮的离子交换法处理研究  

Treatment of ammonia nitrogen in electrolytic manganese wastewater using ion exchange method

作　　者：孙瑾[1] 羊依金[1] 雷弢 郑梦桃 信欣[1] 谭显东[1] 胡俊 

机构地区：[1]成都信息工程大学,成都610225 [2]四川恒达环境技术有限公司,成都610015

出　　处：《工业用水与废水》2015年第6期18-22,共5页Industrial Water & Wastewater

摘　　要：采用001×7阳离子交换树脂去除电解锰废水中的氨氮,并对达到氨氮穿透点的树脂进行再生后重吸附,考察不同床体积流量的离子交换柱对氨氮的吸附效果以及再生后重吸附的性能。结果表明,床体积流量分别为3.75、2.50、1.88 BV/h时,离子交换柱穿透时间点分别为7.04、11.42、14.81 h;再生液流速为5.0 BV/h时能经济有效地完成氨氮解吸,解析完全所需时间为150 min;3组离子交换柱经过8次吸附-再生,性能稳定有效。Using 001 ×7 cation exchange resin to remove ammonia nitrogen in electrolytic manganese wastewater, and then, regenerated the resin which had achieved breakthrough point. The adsorption effect of ion exchange columns with different resin bed volume flow rates on ammonia nitrogen and its adsorption performance after the regeneration were investigated. The results showed that, when the resin bed volume flow rates were 3.75, 2.50 and 1.88 BV/h respectively, the breakthrough points of those ion exchange columns were 7.04, 11.42 and 14.81 h respectively; when the regenerated liquid flow rate was 5.0 BV/h, complete desorption of ammonia nitrogen could be obtained economically and effectively, which need 150 rain. It could be seen that, three groups of ion ex- change columns all had stable and effective adsorption performance even after 8 times of adsorption-regeneration.

关 键 词：阳离子交换树脂 电解锰废水 氨氮 吸附 再生 

分 类 号：X703.1[环境科学与工程—环境工程]