改性沸石深度脱氮除磷的效果研究  

Effect of Modified-zeolite on Advanced Removal of Nitrogen and Phosphorus

作　　者：黄林 刘永德[2] 

机构地区：[1]郑州市污水净化有限公司,河南郑州450000 [2]河南工业大学化学化工学院,河南郑州450001

出　　处：《天津科技》2016年第6期60-62,共3页Tianjin Science & Technology

基　　金：郑州市重大科技专项(141PZDZX045)

摘　　要：采用氯化镧和十六烷基三甲基溴化铵浸渍法对人造沸石进行改性,分别利用傅里叶红外光谱和扫描电镜表征了改性沸石的形貌特征,并考察了吸附效果。实验表明,采用5g/L的LaCl溶液150mL,5g/L的十六烷基三甲基溴化铵溶液100 mL浸渍的人工沸石对氮磷的去除效果最佳;当投加量为0.10%时,改性沸石1对于氨氮和总磷的去除率分别可达61%和97%。该改性沸石对氮磷的吸附过程符合Langmuir吸附等温式,R值均达到0.95以上。Lanthanum chloride(LaCl3)and Hexadecyl trimethyl ammonium Bromide(HDTMA)were used to modify zeolite by the method of soaking.The morphology features of modified zeolite were characterized byFourier infrared spectrum and Scanning Electron Microscopy(SEM)respectively.According to this experiment,when the concentration of HDTMA (100,mL)and LaCl(150,mL)was 5,g/L,the effect of nitrogen and phosphorus removal went to the best.When the dos-ing quantity was 0.1%,,the removal rate of nitrogen and phosphorus reached to 61%, and 97%, respectively.Absorption process of nitrogen and phosphorus by the modified-zeolite was in accordance withLangmuir adsorption model with a corre-lation efficient of more than 0.95.

关 键 词：人造沸石 脱氮除磷 氯化镧 HDTMA 朗格缪尔 

分 类 号：X522[环境科学与工程—环境工程]