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
1秒前
future完成签到 ,获得积分10
1秒前
wwl关闭了wwl文献求助
2秒前
2秒前
2秒前
lzw完成签到,获得积分10
2秒前
帆帆发布了新的文献求助10
2秒前
量子星尘发布了新的文献求助10
2秒前
悦耳冷松完成签到,获得积分10
3秒前
4秒前
4秒前
5秒前
独特乘云发布了新的文献求助10
6秒前
悦耳冷松发布了新的文献求助10
6秒前
6秒前
dian完成签到 ,获得积分10
7秒前
吃饱饱完成签到 ,获得积分10
7秒前
彭于晏应助大力绿柏采纳,获得10
8秒前
8秒前
ri_290完成签到 ,获得积分10
9秒前
贾克斯发布了新的文献求助10
9秒前
何处芳歇发布了新的文献求助10
9秒前
小当家完成签到,获得积分10
9秒前
nightmare发布了新的文献求助10
10秒前
Ava应助独特乘云采纳,获得10
12秒前
义气黄焖排骨完成签到,获得积分10
12秒前
古藤完成签到 ,获得积分10
13秒前
shinian完成签到 ,获得积分10
13秒前
JamesPei应助nightmare采纳,获得10
14秒前
15秒前
16秒前
十年完成签到 ,获得积分10
17秒前
wwl发布了新的文献求助10
19秒前
20秒前
默默千亦完成签到 ,获得积分10
20秒前
贾克斯发布了新的文献求助10
21秒前
撸撸大仙完成签到,获得积分20
22秒前
打我呀发布了新的文献求助10
22秒前
23秒前
Jasper应助体贴的之卉采纳,获得10
24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 3989406
求助须知:如何正确求助?哪些是违规求助? 3531522
关于积分的说明 11254187
捐赠科研通 3270174
什么是DOI,文献DOI怎么找? 1804901
邀请新用户注册赠送积分活动 882105
科研通“疑难数据库(出版商)”最低求助积分说明 809174