NaOH和NaCl联合改性沸石去除氨氮研究  

Study on the Removal of Ammonia Nitrogen by NaOH and NaCl Combined Modification of Zeolite

作　　者：董帅 张德航 张昊澜 魏士越 陈怡 谷晋川 DONG Shuai;ZHANG Dehang;ZHANG Hanlan;WEI Shiyue;CHEN Yi;GU Jinchuan(School of Architecture and Civil Engineering,Xihua University,Chengdu 610000,China;Chengdu Xingrong Environment Co.,Ltd.,Chengdu 610000,China;School of Food and Biological Engineering,Xihua University,Chengdu 610000,China)

机构地区：[1]西华大学建筑与土木工程学院,四川成都610000 [2]成都市兴蓉环境股份有限公司,四川成都610000 [3]西华大学食品与生物工程学院,四川成都610000

出　　处：《水处理技术》2024年第12期73-78,95,共7页Technology of Water Treatment

基　　金：四川省科技成果转移转化示范项目(24ZHSF0062);四川省重大科技专项(2019YFS0510);西华大学引进人才项目(Z202117)。

摘　　要：沸石因为便宜且具有多孔结构在水处理中得到了广泛应用。本研究采用NaOH和NaCl对沸石进行改性,用改性沸石去除泡菜废水中的氨氮,结合SEM、XRD、BET、FTIR进行机理分析,同时测定了pH、投加量、反应时间、动态、静态因素对去除氨氮的影响。研究结果表明:用0.6 mol/L NaOH和0.6 mol/L NaCl联合改性斜发沸石,改性后显著提高了斜发沸石的氨氮吸附能力,在pH为8、投加量为20 g、反应时间1.5 h反应条件下吸附泡菜废水中的氨氮,氨氮去除率可达到98.4%;为氨氮吸附材料提供新思路。Zeolite has been widely used in water treatment due to its low cost and porous structure.This study modified zeolite with NaOH and NaCl to remove ammonia nitrogen from kimchi wastewater.The mechanism was analyzed using SEM,XRD,BET,and FTIR,and the effects of pH,dosage,reaction time,dynamic,and static factors on the removal of ammonia nitrogen were measured.The research results showed that the combined modification of zeolite with 0.6 mol/L NaOH and 0.6 mol/L NaCl significantly improved the ammonia nitrogen adsorption capacity of zeolite.Under the reaction conditions of pH 8,dosage of 20 g,and reaction time of 1.5 hours,the ammonia nitrogen in kimchi wastewater was adsorbed,and the ammonia nitrogen removal rate reached 98.4%;Provide new ideas for ammonia nitrogen adsorption materials.

关 键 词：沸石 改性研究 吸附氨氮 

分 类 号：X703.1[环境科学与工程—环境工程]