An Experimental Study of Fluoride Removal from Wastewater by Mn-Ti Modified Zeolite

吸附 沸石 吸附 弗伦德利希方程 化学吸附 氟化物 朗缪尔 斜发沸石 傅里叶变换红外光谱 材料科学 废水 离子交换 无机化学 化学 化学工程 分析化学(期刊) 离子 色谱法 催化作用 物理化学 环境工程 有机化学 工程类
作者
Bo Yang,Guirong Sun,Bingxu Quan,Jiawei Tang,Chunhui Zhang,Chaomin Jia,Yuanhui Tang,Xinling Wang,Meng‐Meng Zhao,Wenqian Wang,Binhu Xiao
出处
期刊:Water [Multidisciplinary Digital Publishing Institute]
卷期号:13 (23): 3343-3343 被引量:9
标识
DOI:10.3390/w13233343
摘要

The emerging interest in fluoride-removal from wastewater has attracted attention to zeolite since it has been considered as a natural adsorbent. However, the fluoride-removal efficiency of natural zeolite is generally low. As part of the effort to improve the zeolite adsorption efficiency, we have produced and tested the Mn-Ti modified zeolite. In the current work, the material preparation is discussed, and prepared materials were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy, and Fourier transform infrared (FTIR) spectra. Both static and dynamic experiments were conducted to examine the effects of independent variables. In the static adsorption section, sensitivity analysis experiments were conducted for independent variables, such as adsorbent dosage, pH, temperature, and competitive ions. The maximum adsorption capacity is 2.175 mg/g, which was obtained at PH = 7, temperature = 25 °C, and initial fluoride concentration = 10 mg/L. For adsorption kinetics, both Lagergren and Pseudo-second order models predict the experiments very well, which probably demonstrates that the current process is a combination of physical sorption and chemisorption. For adsorption isotherms, the Freundlich model performs better than the Langmuir model since it is usually applied to illustrate adsorption on inhomogeneous surfaces. In the dynamic adsorption section, sensitivity analysis experiments were also conducted for independent variables, such as adsorbent thickness, flow velocity, initial fluoride concentration, and PH. Additionally, the adsorption mechanism is also discussed. The main reason is the hydrated metal fluoride precipitate formation. As we know, the current work provides the first quantified comparison of the natural zeolite and the Mn-Ti modified zeolite regarding fluoride-removal efficiency.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
奥黛丽赫本完成签到,获得积分10
刚刚
blue发布了新的文献求助240
1秒前
追寻筮发布了新的文献求助10
2秒前
orixero应助陈cxz采纳,获得10
3秒前
Jasper应助俏皮的白柏采纳,获得10
3秒前
3秒前
4秒前
WC241002292完成签到,获得积分10
4秒前
miaojuly完成签到,获得积分10
4秒前
5秒前
wang发布了新的文献求助10
5秒前
Liu应助不宁不令采纳,获得20
5秒前
难过的谷芹发布了新的文献求助150
5秒前
7秒前
WEIWEI完成签到,获得积分10
7秒前
8秒前
9秒前
小小发布了新的文献求助10
9秒前
顾矜应助李长印采纳,获得10
9秒前
9秒前
10秒前
10秒前
量子星尘发布了新的文献求助10
11秒前
直率的惜寒完成签到,获得积分10
12秒前
13秒前
爱莉希雅发布了新的文献求助10
14秒前
15秒前
15秒前
16秒前
情怀应助笨笨山芙采纳,获得10
16秒前
小白发布了新的文献求助10
17秒前
18秒前
小二郎应助科研通管家采纳,获得10
18秒前
核桃应助科研通管家采纳,获得10
18秒前
Lucas应助科研通管家采纳,获得10
18秒前
领导范儿应助科研通管家采纳,获得10
18秒前
18秒前
在水一方应助科研通管家采纳,获得10
18秒前
ludov应助科研通管家采纳,获得10
18秒前
JamesPei应助科研通管家采纳,获得10
18秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988868
求助须知:如何正确求助?哪些是违规求助? 3531255
关于积分的说明 11253071
捐赠科研通 3269858
什么是DOI,文献DOI怎么找? 1804822
邀请新用户注册赠送积分活动 881994
科研通“疑难数据库(出版商)”最低求助积分说明 809035