Construction of ZrO2-CeO2 composite UF membranes for effective PVA recovery from desizing wastewater

废水 复合数 超滤(肾) 废物管理 材料科学 制浆造纸工业 化学工程 化学 复合材料 色谱法 工程类 生物化学
作者
Zhihao Jin,Minghui Qiu,Juanjuan Wen,Yajing Shen,Xianfu Chen,Yiqun Fan
出处
期刊:Separation and Purification Technology [Elsevier BV]
卷期号:306: 122672-122672 被引量:8
标识
DOI:10.1016/j.seppur.2022.122672
摘要

• The introduction of ZrO 2 effectively improved the compatibility between the CeO 2 dispersions and intermediate layer. • An integrated ZrO 2 -CeO 2 composite membrane with a thickness of 300 nm was fabricated. • The membranes achieved ∼100% recovery of PVA and a permeance of 67 L·m -2 ·h -1 ·bar -1 under harsh conditions. • A 95.1% flux recovery was achieved under the synergistic cleaning of SDBS and NaClO. • The excellent membrane stability promised great potential for PVA recovery from desizing wastewater. Ceramic ultrafiltration membranes play an important role for the PVA recovery from desizing wastewater. In this study, an integrated and thin (approximately 300 nm) ZrO 2 -CeO 2 composite UF membrane was constructed, with a MWCO of 16 kDa and a water permeance of 116 L·m -2 ·h -1 ·bar -1 . Nano ZrO 2 particles were introduced to optimize the particle size distribution of the CeO 2 dispersion, therefore improve its compatibility with the intermediate layer. The membrane also exhibited outstanding chemical stability in both acid (pH=1) and alkali (pH=14) solutions. In addition, the membrane exhibited excellent PVA separation performance under harsh conditions (operation temperature=80 °C, and the solution pH=13), with a nearly 100% recovery rate of PVA and a stable permeance of 67 L·m -2 ·h -1 ·bar -1 . Subsequently, the membrane showed outstanding efficiency for chemical cleaning, with the flux recovery ratio reaching 95.1% under optimized cleaning conditions. Meanwhile, the pore structure and integrity of the membrane layer maintained stable during the whole process. Overall, this study provides a high-performance UF membrane from new material, which exhibits great potential for PVA recovery from desizing wastewater.
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
iFaceDOG发布了新的文献求助10
刚刚
BAEKHYUNLUCKY完成签到,获得积分10
刚刚
1秒前
2秒前
2秒前
糖醋可乐发布了新的文献求助10
2秒前
hhh发布了新的文献求助10
2秒前
3秒前
topsun完成签到,获得积分10
3秒前
闲听花落完成签到,获得积分10
4秒前
4秒前
xxx完成签到,获得积分10
4秒前
脑洞疼应助zhaogz采纳,获得10
4秒前
西门子云完成签到,获得积分10
4秒前
诸觅双完成签到 ,获得积分10
5秒前
chen完成签到,获得积分10
5秒前
xueying6767完成签到,获得积分10
6秒前
YU发布了新的文献求助10
7秒前
7秒前
小二郎应助aaaaaa采纳,获得10
8秒前
8秒前
Ayan完成签到,获得积分10
8秒前
Ariesfei发布了新的文献求助10
8秒前
8秒前
重要月饼发布了新的文献求助30
9秒前
西瓜二郎完成签到,获得积分10
9秒前
YI完成签到,获得积分10
9秒前
10秒前
量子星尘发布了新的文献求助10
11秒前
12秒前
大将军发布了新的文献求助10
12秒前
二拾完成签到,获得积分10
12秒前
13秒前
hhh完成签到,获得积分20
13秒前
烟花应助Albertxkcj采纳,获得10
13秒前
YUN发布了新的文献求助10
13秒前
bkagyin应助o30采纳,获得10
14秒前
慕青应助威武忆山采纳,获得10
14秒前
程琛发布了新的文献求助10
15秒前
科研通AI2S应助明理的幻悲采纳,获得10
15秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
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 3969335
求助须知:如何正确求助?哪些是违规求助? 3514162
关于积分的说明 11172430
捐赠科研通 3249456
什么是DOI,文献DOI怎么找? 1794853
邀请新用户注册赠送积分活动 875437
科研通“疑难数据库(出版商)”最低求助积分说明 804809