改性沸石氨氮吸附剂的制备及其在生活污水处理中的应用

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (5): 1728-1734.

所属专题：新型功能材料

改性沸石氨氮吸附剂的制备及其在生活污水处理中的应用

傅金祥¹, 张延平¹, 李森², 由昆¹, 范冬晗¹, 李欣¹

1.沈阳建筑大学市政与环境工程学院,沈阳 110168;
2.沈阳水务集团,沈阳 110000

收稿日期:2020-12-21 修回日期:2021-03-15 出版日期:2021-05-15 发布日期:2021-06-07
通讯作者: 由昆,博士,高级实验师。E-mail:zhangyanpingfc@163.com
作者简介:傅金祥(1955—),男,博士,教授。主要从事水污染控制理论与技术研究。E-mail:fujinxiang@sina.com
基金资助:
国家水体污染控制与治理科技重大专项子任务(2018ZX07601001-3)

Preparation of Modified Zeolite Ammonia Nitrogen Adsorbent and Its Application in Domestic Sewage Treatment

FU Jinxiang¹, ZHANG Yanping¹, LI Sen², YOU Kun¹, FAN Donghan¹, LI Xin¹

1. School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China;
2. Shenyang Water Group, Shenyang 110000, China

Received:2020-12-21 Revised:2021-03-15 Online:2021-05-15 Published:2021-06-07

摘要/Abstract

摘要： 针对部分地区污水厂常规处理工艺排水氨氮超标的问题,通过制备改性沸石氨氮吸附剂,结合吸附试验、表征分析和中试试验对改性沸石去除城市生活污水中氨氮的性能进行深入研究,考察了改性沸石氨氮吸附剂最佳的制备工艺与氨氮去除特性。结果表明:改性沸石氨氮吸附剂有着更多的钠型沸石与孔道;在NaCl浓度为1.5 mol/L,搅拌时间为3 h,加热温度为75 ℃时,平均氨氮去除率与吸附量分别达到83.51%和0.840 mg/g;中试试验结果显示,经改性沸石氨氮吸附剂过滤后的水中氨氮含量稳定在2.0 mg/L以下,且吸附剂可再生后重复使用。该研究可为城市生活污水氨氮处理提供理论依据。

关键词: 改性沸石, 氨氮吸附剂, 中试试验, 城市生活污水

Abstract: In order to solve the problem of excessive ammonia nitrogen in the drainage of conventional sewage treatment process in some areas, through the preparation of modified zeolite ammonia nitrogen adsorbent, combined with adsorption experiment, characterization analysis and pilot test, the performance of the modified zeolite ammonia nitrogen adsorbent for the removal of ammonia nitrogen from municipal domestic sewage was deeply studied and the optimum preparation process and removal characteristics of the modified zeolite ammonia nitrogen adsorbent were investigated. The results show that the modified zeolite ammonia nitrogen adsorbent has more sodium zeolite and pore channels, and the removal rate and adsorption amount of ammonia nitrogen reach 83.51% and 0.840 mg/g respectively at NaCl concentration of 1.5 mol/L, stirring time of 3 h and heating temperature of 75 ℃. The pilot test results show that the content of ammonia nitrogen in the water filtered by modified zeolite ammonia nitrogen adsorbent is stable below 2.0 mg/L, and the adsorbent can be recycled and reused. This study can provide theoretical basis for ammonia nitrogen treatment of municipal domestic sewage.

Key words: modified zeolite, ammonia nitrogen adsorbent, pilot test, municipal domestic sewage

中图分类号:

傅金祥, 张延平, 李森, 由昆, 范冬晗, 李欣. 改性沸石氨氮吸附剂的制备及其在生活污水处理中的应用[J]. 硅酸盐通报, 2021, 40(5): 1728-1734.

FU Jinxiang, ZHANG Yanping, LI Sen, YOU Kun, FAN Donghan, LI Xin. Preparation of Modified Zeolite Ammonia Nitrogen Adsorbent and Its Application in Domestic Sewage Treatment[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(5): 1728-1734.

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改性沸石氨氮吸附剂的制备及其在生活污水处理中的应用

Preparation of Modified Zeolite Ammonia Nitrogen Adsorbent and Its Application in Domestic Sewage Treatment

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[1]	傅金祥, 范冬晗, 刘子鸥. 响应面法应用于沸石处理氨氮废水优化研究[J]. 硅酸盐通报, 2019, 38(7): 2131-2136.
[2]	傅金祥;范冬晗;刘子鸥. 偏高岭土基地质聚合物型氨氮吸附剂制备与表征[J]. 硅酸盐通报, 2019, 38(11): 3625-363.
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