High-value conversion of waste Na2SO4 by a bipolar membrane electrodialysis metathesis system

电渗析 化学 废水 色谱法 废物管理 核化学 生物化学 工程类
作者
Ming Zhu,Binghui Tian,Sheng Luo,Yongzhi Chi,Dierxiati Aishajiang,Yu Zhang,Min Yang
出处
期刊:Resources Conservation and Recycling [Elsevier BV]
卷期号:186: 106556-106556 被引量:32
标识
DOI:10.1016/j.resconrec.2022.106556
摘要

Na2SO4 is generated during zero-liquid discharge treatment of high-salinity wastewater and is of limited industrial use. In this study, a five-compartment bipolar membrane electrodialysis metathesis (BMED-5) system was established to produce (NH4)2SO4, HCl, and NaOH simultaneously from waste Na2SO4 by adding an equivalent amount of NH4Cl. The conditions for optimizing the performance of the BMED-5 system in terms of its energy efficiency and conversion ratio were investigated. The inflection point of the stack voltage occurred at a final Na2SO4 concentration of 0.03 mol/L, corresponding to a conductivity of approximately 6 mS/cm in the Na2SO4 compartment, which could be considered the end point of the reaction. In comparison with the widely used three-compartment bipolar membrane electrodialysis (BMED) system, which could convert the waste salts into an acid and a base, the BMED-5 system in study only consumed a little higher energy to produce three products. The highest (NH4)2SO4 (0.44 mol/L), HCl (1.03 mol/L), and NaOH (1.35 mol/L) concentrations were obtained with an initial Na2SO4 concentration of 0.8 mol/L and a current density of 40 mA/cm2, yielding a conversion ratio of up to 96% and energy consumption of 2.961 kWh/kg Na2SO4. The gross profit and payback period of BMED-5 were estimated to be 178.4 $/t Na2SO4 and 2.3 years, respectively.
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
刚刚
大胆的夏天完成签到,获得积分10
1秒前
独特的夜阑完成签到 ,获得积分10
1秒前
dpk发布了新的文献求助10
2秒前
2秒前
zhang完成签到,获得积分10
3秒前
任老三发布了新的文献求助10
3秒前
dollarpuff完成签到 ,获得积分10
4秒前
5秒前
5秒前
ding应助曾经不言采纳,获得10
6秒前
bkagyin应助秋秋采纳,获得10
6秒前
烦了完成签到,获得积分20
7秒前
周翔完成签到,获得积分20
9秒前
clhoxvpze完成签到 ,获得积分10
9秒前
9秒前
10秒前
陈刘轩发布了新的文献求助10
10秒前
11秒前
彭于晏应助阿巴采纳,获得10
12秒前
fanghua完成签到,获得积分20
12秒前
函谷科学家完成签到,获得积分10
13秒前
li完成签到,获得积分20
14秒前
15秒前
16秒前
16秒前
16秒前
16秒前
风中的逍遥完成签到,获得积分10
16秒前
陈刘轩完成签到,获得积分20
17秒前
曾经不言发布了新的文献求助10
17秒前
科研通AI2S应助dpk采纳,获得10
17秒前
CAOHOU应助火星上安寒采纳,获得10
18秒前
li发布了新的文献求助10
18秒前
Hemingwayway发布了新的文献求助10
19秒前
秋秋发布了新的文献求助10
20秒前
Owen应助2224270676采纳,获得20
20秒前
无限忆彤发布了新的文献求助10
21秒前
22秒前
24秒前
高分求助中
The Mother of All Tableaux Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 2400
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Cognitive Neuroscience: The Biology of the Mind (Sixth Edition) 1000
Optimal Transport: A Comprehensive Introduction to Modeling, Analysis, Simulation, Applications 800
Official Methods of Analysis of AOAC INTERNATIONAL 600
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 3959210
求助须知:如何正确求助?哪些是违规求助? 3505538
关于积分的说明 11124306
捐赠科研通 3237248
什么是DOI,文献DOI怎么找? 1789010
邀请新用户注册赠送积分活动 871512
科研通“疑难数据库(出版商)”最低求助积分说明 802824