电絮凝技术在废弃涤纶醇解液脱色中的应用

doi:10.13475/j.fzxb.20180604107

纺织学报 ›› 2019, Vol. 40 ›› Issue (10): 98-104.doi: 10.13475/j.fzxb.20180604107

电絮凝技术在废弃涤纶醇解液脱色中的应用

陈欣¹^,², 张家琳¹^,², 王纪冬¹^,², 李晓强¹^,², 葛明桥¹^,²()

1.江南大学纺织服装学院, 江苏无锡 214122
2.生态纺织教育部重点实验室(江南大学), 江苏无锡 214122

收稿日期:2018-06-11 修回日期:2019-06-26 出版日期:2019-10-15 发布日期:2019-10-23
通讯作者: 葛明桥
作者简介:陈欣(1995—),女,硕士。主要研究方向为废弃聚酯资源化再利用。
基金资助:
国家重点研发计划项目(2016YFB0302901);中央高校基本科研业务费专项资金重点项目(JUSRP51723B);国家自然科学基金项目(51503083)

Decolorization of polyester alcoholysis solution by electrocoagulation

CHEN Xin¹^,², ZHANG Jialin¹^,², WANG Jidong¹^,², LI Xiaoqiang¹^,², GE Mingqiao¹^,²()

1. School of Textile and Clothing, Jiangnan University, Wuxi, Jiangsu 214122, China
2. Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China

Received:2018-06-11 Revised:2019-06-26 Online:2019-10-15 Published:2019-10-23
Contact: GE Mingqiao

摘要/Abstract

摘要：

针对涤纶醇解液造成的环境污染问题,采用电絮凝技术对其进行脱色。将铝电极和铜电极分别作为电絮凝反应系统的阳极和阴极,研究了电絮凝过程中电解电压、电解质质量浓度、初始pH值以及染料初始质量浓度等因素对脱色率的影响。通过对电极和絮凝体进行相关测试,探讨电絮凝技术的脱色机制,并建立了涤纶醇解液脱色过程的动力学方程。结果表明:在电压为20 V,初始pH值为8,电解质质量浓度为0.80 g/L,染料初始质量浓度为 60 mg/L 的条件下,醇解液的脱色效果较好,电解80 min后脱色率可超过95% 以上;铝电极处理涤纶醇解液的电絮凝过程较吻合动力学二级反应过程。

关键词: 废弃涤纶, 醇解液, 电絮凝, 脱色率, 涤纶回收利用

Abstract:

In order to solve the problem of environmental pollution caused by polyester alcoholysis solution, the electrocoagulation was used to decolorize the solution. An aluminum electrode and a copper electrode were used as the anode and cathode of the electroflocculation reaction system, respectively. The influences of electrolysis voltage, electrolyte concentration, initial pH value and initial dye concentration on the decolorization rate during electroflocculation were studied. The electrodes and flocs were tested, the main decolorization mechanism of the electrocoagulation process was discussed, and the kinetic equation of the decolorization was established. The results show that the optimal process parameters include a voltage of 20 V, an initial pH value of 8, an electrolyte concentration of 0.80 g/L and an initial concentration of 60 mg/L, and the decolorization rate is high than 95% after electrolyzing for 80 min. The electrocoagulation process of polyester alcoholysis solution with an aluminum electrode conforms to the second-order kinetic model.

Key words: waste polyester, alcoholysis solution, electrocoagulation, decolorization rate, polyester recycling and utilization

中图分类号:

TS190.3

陈欣, 张家琳, 王纪冬, 李晓强, 葛明桥. 电絮凝技术在废弃涤纶醇解液脱色中的应用[J]. 纺织学报, 2019, 40(10): 98-104.

CHEN Xin, ZHANG Jialin, WANG Jidong, LI Xiaoqiang, GE Mingqiao. Decolorization of polyester alcoholysis solution by electrocoagulation[J]. Journal of Textile Research, 2019, 40(10): 98-104.

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参考文献 21

[1]	吴宝宅, 武志云, 汪少朋, 等. 应用二甲基亚砜对废旧聚酯纺织品的脱色[J]. 纺织学报, 2014,35(4):84-87.
	WU Baozhai, WU Zhiyun, WANG Shaopeng, et al. Decolorization of waste polyester textiles with dimethylsulfoxide[J]. Journal of Textile Research, 2014,35(4):84-87. doi: 10.1177/004051756503500112
[2]	李艳艳, 李梦娟, 鲁静, 等. 废弃聚酯醇解液的回收与循环利用[J]. 纺织学报, 2019,40(2):20-25.
	LI Yanyan, LI Mengjuan, LU Jing, et al. Recovery and recycling of waste polyester alcohol solution[J]. Journal of Textile Research, 2019,40(2):20-25.
[3]	王璐, 冯玥, 韦彦斐, 等. 臭氧气泡大小对分散染料废水氧化处理效果的影响[J]. 环境污染与防治, 2013,35(2):11-16.
	WANG Lu, FENG Yue, WEI Yanfei, et al. Effect of ozone bubble size on the oxidation treatment of disperse dye wastewater[J]. Environmental Pollution and Control, 2013,35(2):11-16.
[4]	刘梅红. 印染废水处理技术研究进展[J]. 纺织学报, 2007,28(1):116-119.
	LIU Meihong. Researchprogress of printing and dyeing wastewater treatment technology[J]. Journal of Textile Research, 2007,28(1):116-119.
[5]	LI Y, LI M, LU J, et al. Decoloration of waste PET alcoholysis liquid by an electrochemical method[J]. Water Science and Technology, 2018,77(9/10):2463. doi: 10.2166/wst.2018.191
[6]	李梦娟, 李艳艳, 鲁静, 等. 聚酯醇解废液的脱色动力学[J]. 化工进展, 2018,37(9):3666-3674.
	LI Mengjuan, LI Yanyan, LU Jing, et al. Decoloriza-tion kinetics of polyesteralcoholysis waste liquid[J]. Chemical Industry and Engineering Progress, 2018,37(9):3666-3674.
[7]	费琼, 王少坡, 罗伟, 等. 电絮凝法在水处理过程中影响因素研究现状[J]. 工业水处理, 2016,36(12):16-21.
	FEI Qiong, WANG Shaopo, LUO Wei, et al. Research status of influencing factors of electrocoagulation in water treatment process[J]. Industrial Water Treatment, 2016,36(12):16-21.
[8]	FAJARDO A S, MARTINS R C, SILVA D R, et al. Dye wastewaters treatment using batch and recirculation flow electrocoagulation systems[J]. Journal of Electroanalytical Chemistry, 2017,801:30-37.
[9]	ZAZOU H, OTURAN N, ZHANG H, et al. Comparative study of electrochemical oxidation of herbici-de 2,4,5-T: kinetics, parametric optimization and mineralization pathway[J]. Sustainable Environment Research, 2017,27(1):15-23.
[10]	VISHAKHA G, LAXMI D, AMBIKA S, et al. Electrocoagulation technology for high strength arsenic wastewater: process optimization and mechanistic study[J]. Journal of Cleaner Production, 2018,198:693-703.
[11]	GOLDER A K, SAMANTA A N, RAY S. Removal of C^r3+ by electrocoagulation with multiple electrodes: bipolar and monopolarconfigurations [J]. Journal of Hazardous Materials, 2007,141(3):653-661. doi: 10.1016/j.jhazmat.2006.07.025 pmid: 16938395
[12]	ZAZOU H, AFANGA H, AKHOUAIRI S, et al. Treatment of textile industry wastewater by electrocoagulation coupled with electrochemical advanced oxidation process[J]. Journal of Water Process Engineering, 2019,28:214-221.
[13]	KHORRAM A G, FALLAH N. Treatment of textile dyeing factory wastewater by electrocoagulation with low sludge settling time: optimization of operating parameters by RSM[J]. Journal of Environmental Chemical Engineering, 2018,6(1):635-642. doi: 10.1016/j.jece.2017.12.054
[14]	ESKIBALCI M F, OZKAN M F. Comparison of conventional coagulation and electrocoagulation methods for dewatering of coal preparation plant[J]. Minerals Engineering, 2018,122:106-112.
[15]	NANDI B K, PATEL S. Effects of operational parameters on the removal of brilliant green dye from aqueous solutions by electrocoagulation[J]. Arabian Journal of Chemistry, 2017,10(S2):961-968.
[16]	赵月红, 林乐耘, 刘增才, 等. 铝合金牺牲阳极微观组织的不均匀性对其腐蚀的影响[J]. 稀有金属, 2000(5):341-344.
	ZHAO Yuehong, LIN Yueyun, LIU Zengcai, et al. Influe-nce of microstructure heterogeneity on corrosion of aluminum alloy sacrificial anodes[J]. Rare Metals, 2000(5):341-344.
[17]	常青. 水处理絮凝学[M]. 北京: 化学工业出版社, 2003: 206.
	CHANG Qing. Water Treatment Flocculation [M]. Beijing: Chemical Industry Press, 2003: 206.
[18]	胡亚鲜, KUHN Nikolaus J. 利用土壤颗粒的沉降粒级研究泥沙的迁移与分布规律[J]. 土壤学报, 2017,54(5):1115-1124.
	HU Yaxian, KUHN Nikolaus J. Study on sediment mi-gration and distribution using sediment particle size of soil particles[J]. Journal of Soil Science, 2017,54(5):1115-1124.
[19]	封明, 雷小利. 电解法在废水处理中的应用[J]. 电镀与精饰, 2013,35(1):43-46.
	FENG Ming, LEI Xiaoli. Application of electrolysis inwaste water treatment[J]. Plating & Finishing, 2013,35(1):43-46.
[20]	NARIYAN E, AGHABABAEI A, SILLANP M. Re-moval of pharmaceutical from water with an electro-coagulation process; effect of various parameters andstudies of isotherm and kinetic[J]. Separation and Purification Technology, 2017,188:266-281.
[21]	DANIAL R, SOBRI S, ABDULLAH L C, et al. FTIR, C-HNS and XRD analyses define mechanism of glyph-osate herbicide removal by electrocoagulation[J]. Chemosphere, 2019,233:559-569. doi: 10.1016/j.chemosphere.2019.06.010 pmid: 31195261

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级数	动力学方程	复相关系数R²
0	y=-0.601 4 x + 39.368 0	0.575 9
1	y=-0.038 6 x + 3.402 0	0.826 5
2	y=0.005 8 x + 0.014 2	0.958 4

电絮凝技术在废弃涤纶醇解液脱色中的应用

Decolorization of polyester alcoholysis solution by electrocoagulation

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