摘要
以景观水体为研究对象,将沸石进行盐、盐+热、盐+碱和盐+酸复合改性,研究其对废水中氨氮去除效果的影响.结果表明,利用最佳质量浓度为3%的NaCl改性沸石进行除氨氮实验,当反应吸附时间为60min时,对氨氮的去除率可达80%;再对NaCl改性沸石在500℃下煅烧2h,当吸附时间为30min时,氨氮去除率高达95%.其去除率较NaCl改性沸石提高1.19倍,较天然沸石提高1.73倍.
In order to study the impacts of modified zeolite on the removal of ammonia nitrogen in wastewater ,the landscape water is used and the zeolite salt ,salt and heat ,salt and alkali ,salt and acids are compounded modified on zeolite . T he results indicate that w hen the reaction time reaches 60min , ammonia nitrogen removal rate is 80% by using 3% NaCl modified zeoite .However ,the NaCl modified zeolite is calcined at 500℃ for 2h ,the ammonia removal rate is up to 95% w hen the absorbing time is 30min .The removal rate improves by 1.19 times compared with NaCl modified zeolite and 1.73 times higher than the natural zeolite .
出处
《西安工程大学学报》
CAS
2014年第3期329-332,共4页
Journal of Xi’an Polytechnic University
关键词
氨氮
复合改性
沸石
ammonia nitrogen
composite modified
zeolite
