摘要
本实验研究了天然沸石对氨氮的吸附影响因素及机理,结果表明,沸石投加量为2g,粒径由20目增加到100目时,其qe从0.341上升到0.512mg/g;沸石投加量1g,初始氨氮浓度由10mg/L增大到100mg/L时,qe从0.112上升0.595mg/g;氨氮初始浓度为100mg/L,投加量由1g增大到15g时,qe从0.595mg/g下降到0.268mg/g,沸石吸附氨氮更适合用Langmuir吸附等温线和准二级反应动力学进行描述,其R2分别为0.997和0.998。
This test investigated the influencing factom and mechanism of natural stellerite adsorbing the ammonia and nitrogen. The results show that： zeolite dosage 2g and particle size increased from 20 mesh to 100 mesh, qe increased from 0.341 to 0.512mg/g; zeolite dosage lg, initial ammonia and nitrogen concentration increased from 10mg/L to 100rag/L, qe roses from 0.112 to 0.595mg/g; ammonia and nitrogen initial concentration is 100mg/L and the dosage increased from lg to 15g,qe decreased from 0.595mg/g to 0.268mg/g; the zeolite adsorbed ammonia is more suitable to describe with Langrnuir adsorption isotherm and pseudo-second reaction kinetics, R2 is 0.997 and 0.998 respectively.
出处
《价值工程》
2013年第17期285-287,共3页
Value Engineering
关键词
天然沸石
氨氮
吸附容量
natural stellerite
ammonium
adsorption capacity
