扩散渗析法回收铝箔腐蚀废液中硝酸
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- 英文论文题名：Recovery of nitric acid in aluminum foil etching wastewaters by diffusion dialysis
- 论文作者：张旭 ; 王晓林 ; 吕燕 ; 汪小尧 ; 陶振 ; 李传润
- 英文论文作者：ZHANG Xu ; WANG Xiaolin ; L Yan ; WANG Xiaoyao ; TAO Zhen ; LI Chuanrun ; School of Chemistry and Chemical Engineering ; Hefei University of Technology ; Hefei Cement Research & Design Institute ; Hefei Chemoy Polymer Materials Co. ; Ltd
- 年：2016
- 作者机构：合肥工业大学化学与化工学院;合肥水泥研究设计院;合肥科佳高分子材料科技有限公司;
- 论文关键词：铝箔 ; 扩散渗析 ; 废酸液 ; 离子交换膜
- 英文论文关键词：aluminum foil ; diffusion dialysis ; acidic wastewaters ; ion exchange membrane
- 会议召开时间：2016-11-25
- 会议录名称：第五届全国膜分离技术在冶金工业中应用研讨会论文集
- 语种：中文
- 分类号：X703;TQ028.72
- 学会代码：LXJT
- 会议名称：第五届全国膜分离技术在冶金工业中应用研讨会
- 会议地点：中国湖南长沙
- 主办单位：中国膜工业协会、中南大学
- 学会名称：中国蓝星(集团)总公司膜科学与技术编辑部
- 页数：5
- 文件大小：336k
- 原文格式：O
- 会议级别：全国
摘要
采用扩散渗析法回收铝箔腐蚀废液中的硝酸.考察了流量、废液中硝酸铝浓度和硝酸浓度等因素对回收酸浓度、酸回收率以及铝离子截留率的影响,结果表明:回收酸浓度和酸回收率随着流量的增大而减小;回收酸浓度和酸回收率随着废液中硝酸铝浓度的增大而减小;废液中硝酸铝浓度对回收酸浓度、酸回收率以及铝离子截留率的影响不大.分析本文中的实验结果,酸回收率最高为84.90%,此时,流量为0.24 L/h(流量比为1:1)、废液中硝酸浓度为1.30 mol/L、硝酸铝浓度为0.49 mol/L.经济衡算显示投资-收益期为6.6个月,说明扩散渗析处理铝箔腐蚀废液是一个经济可行的过程.
A lot of etchingwastewaters were generated in the production process of aluminum foil.In this study,diffusion dialysis was adopted to recovering nitric acid from aluminum foil etching wastewaters.Firstly,effect of flow rate,aluminum nitrate andnitric acid concentration in feed on recovered acid concentration,acid recovery ratio and aluminum rejection ratio were investigated.Results showed that with the increasing of flow rate and aluminum nitrate concentration in feed,recovered acid concentration and acid recovery ratio decrease,while there is no obvious influence of nitric acid concentration in feed on them.Secondly,the highest acid recovery ratio in this study was 84.90%,and the operation condition is that the flow rate was 0.24 L/h(flow rate ratio was 1.0),the aluminum nitrate andnitric acid concentration in feed were 0.49 mol/L and 1.30 mol/L,respectively.Thirdly,the results of economic evaluation revealed the payback period was about 6.6 months,and it could be demonstrated that recovery of nitric acid in aluminum foil etching wastewaters by diffusion dialysis is an economically feasible process.
A lot of etchingwastewaters were generated in the production process of aluminum foil.In this study,diffusion dialysis was adopted to recovering nitric acid from aluminum foil etching wastewaters.Firstly,effect of flow rate,aluminum nitrate andnitric acid concentration in feed on recovered acid concentration,acid recovery ratio and aluminum rejection ratio were investigated.Results showed that with the increasing of flow rate and aluminum nitrate concentration in feed,recovered acid concentration and acid recovery ratio decrease,while there is no obvious influence of nitric acid concentration in feed on them.Secondly,the highest acid recovery ratio in this study was 84.90%,and the operation condition is that the flow rate was 0.24 L/h(flow rate ratio was 1.0),the aluminum nitrate andnitric acid concentration in feed were 0.49 mol/L and 1.30 mol/L,respectively.Thirdly,the results of economic evaluation revealed the payback period was about 6.6 months,and it could be demonstrated that recovery of nitric acid in aluminum foil etching wastewaters by diffusion dialysis is an economically feasible process.
引文
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[10]Wei C,Li X,Deng Z,et al.Recovery of H2 SO4 from an acid leach solution by diffusion dialysis[J].J Hazard Mater,2010,176:226-230.
[11]Zhuang J,Chen Q,Wang S,et al.Zero discharge process for foil industry waste acid reclamation:Coupling of diffusion dialysis and electrodialysis with bipolar membranes[J].J Membr Sci,2013,432:90-96.
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[2]庄金霞.电容箔行业腐蚀废水资源化应用研究[D].温州:温州大学,2013.
[3]http://www.chyxx.com/industry/201606/427422.html.
[4]陈庆,张伟明.基于膜分离的电极箔行业减排降耗过程研究[J].水处理技术,2014,40(3):44-48.
[5]Zhang X,Li C,Wang H,et al.Recovery of hydrochloric acid from simulated chemosynthesis aluminum foil wastewater by spiral wound diffusion dialysis(SWDD)membrane module[J].J Membr Sci,2011,384:219-225.
[6]孙亚辉,肖连生.扩散渗析回收含铜退镀液中的硝酸[J].膜科学技术,2015,35(3):70-75.
[7]Yan H,Xue S,Wu C,et al.Separation of NaOH and NaAl(OH)4 in alumina alkaline solution through diffusion dialysis and electrodialysis[J].J Membr Sci,2014,469:436-446.
[8]王昆,王伟,邢卫红.扩散渗析法回收不锈钢酸洗废液中硝酸[J].膜科学技术,2010,30(6):62-65.
[9]Luo Y,Wu C,Xu T.Diffusion dialysis-concept,principle and applications[J].J Membr Sci,2011,366:1-16.
[10]Wei C,Li X,Deng Z,et al.Recovery of H2 SO4 from an acid leach solution by diffusion dialysis[J].J Hazard Mater,2010,176:226-230.
[11]Zhuang J,Chen Q,Wang S,et al.Zero discharge process for foil industry waste acid reclamation:Coupling of diffusion dialysis and electrodialysis with bipolar membranes[J].J Membr Sci,2013,432:90-96.
[12]Xu J,Fu D,Lu S.The recovery of sulphuric acid from the waste anodic aluminum oxidation solution by diffusion dialysis[J].Sep Purif Technol,2009,69(2):168-173.