离子交换树脂法去除脱硫废水中氯离子的研究

Abstract

Abstract:

During the operation of the wet flue gas desulfurization system,the chlorine ions in the absorption tower slurry will gradually accumulate due to the circulation of absorbent,which will cause great harm to the desulfurization system and the surrounding environment. So the dechlorination of the desulfurization wastewater was researched.The acrylic acid strong base anion exchange resin has been used for removing Cl ^- from desulfurization wastewater,and the adsorption capacity of the anion exchange resin in static and dynamics state,the mass concentration of Ca ²⁺,Mg ²⁺ ion and the regeneration performance of the resin in dynamics state were contrasted and the influence of chelating agent and water softener on pH and the mass concentration of Cl ^-、Ca ²⁺ and Mg ²⁺ in the adsorption process was studied emphatically.The regeneration performance of the resin under static adsorption conditions was also investigated.The results showed that under dynamic adsorption conditions,the regeneration performance of the resin was greatly reduced due to the influence of flocculent precipitation.Under static adsorption conditions,the adsorption capacity of the anion exchange resin was about 30% less than that of the dynamic adsorption conditions.The addition of chelating agent and water softener was helpful not only to increase the adsorption capacity of resin but also to reduce pH and Cl ^- in the adsorption process.It could also help to reduce the influence of the flocculent precipitate produced by free calcium and magnesium ions on the adsorption performance of the resin and improve the regeneration performance of the resin.

Key words: acrylic anion exchange resin, static adsorption, desulfurization wastewater, chloride ion

CLC Number:

X703.1

Sun Fengjuan,Liu Wanchao,Yan Kun,E Yishuai. Removal of chloride ion from desulfurization wastewater by ion-exchange resin[J]. Inorganic Chemicals Industry, 2019, 51(6): 45-48.

Figures/Tables 5

References 12

[1]	吴伟, 郝文魁, 李晓刚 , 等. 高Cl^-环境对M152和17-4PH高强钢应力腐蚀开裂行为的影响[J]. 材料工程, 2018,46(2):105-114.
[2]	潘旭东, 王向明 . 循环水中氯离子控制及对不锈钢腐蚀机理探讨[J]. 工业水处理, 2013,33(3):14-16.
[3]	刘海洋, 夏怀祥, 江澄宇 , 等. 燃煤电厂湿法脱硫废水处理技术研究进展[J]. 环境工程, 2016,34(1):31-35.
[4]	余晓利, 潘卫国, 郭士义 , 等. 燃煤电厂湿法烟气脱硫废水零排放技术进展[J]. 应用化工, 2018,47(1):160-164.
[5]	Ma S C, Chai J, Chen G D , et al. Research on desulfurization waste-water evaporation:Present and future perspectives[J]. Renewable and Sustainable Energy Reviews, 2016,58:1143-1151.
[6]	徐辉, 陈小娟, 龙长江 , 等. 离子交换法制备氨基磺酸镍[J]. 无机盐工业, 2017,49(12):46-49.
[7]	张弦, 叶春松, 黄建伟 , 等. 高盐废水残余Ca(Ⅱ)的离子交换软化实验[J]. 热力发电, 2018,47(8):66-72.
[8]	梁博 . 离子交换柱在废水处理中的应用[J]. 合成材料老化与应用, 2015,44(3):117-119.
[9]	化娜丽, 路帅, 赵东风 , 等. 离子交换去除炼厂难降解废水中氯离子的静态实验研究[J]. 无机盐工业, 2015,47(11):66-69.
[10]	赵玉, 赵德智, 王德慧 , 等. 离子交换树脂吸附净化工业废液研究进展[J]. 应用化工, 2018,47(3):584-588.
[11]	万华, 张正方, 丁宇 , 等. 强碱阴离子交换树脂对乙二醇-水溶液中氯离子的吸附行为及机理[J]. 新疆大学学报:自然科学版, 2010,27(2):222-225.
[12]	谢子楠, 王蛟, 沈家国 . 工业硫酸锰中钙、镁的净化研究[J]. 无机盐工业, 2015,47(5):48-50.

项目	ρ（Ca²⁺）/（g·L^-1）	ρ（Mg²⁺）/（g·L^-1）
处理前	2.96	1.67
处理后	0.59	0.29

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Removal of chloride ion from desulfurization wastewater by ion-exchange resin

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 5

References 12

Related Articles 4

Metrics

Comments

Recommended 10

[1]	Liu Guowang,Zhou Xiaojun,Zhang Shichun,Yang Shangming,Dong Shoulong,Li Binshou. Recycle method of lithium extracted mother solution and phase diagram analysis [J]. Inorganic Chemicals Industry, 2019, 51(6): 38-40.
[2]	Pan Lei,Xu Feilong,Li Jiannan,Li Longtao,Xia Mingqiang,Dai Jiasheng. Research of battery grade Li₂CO₃ preparation by oilfield water [J]. Inorganic Chemicals Industry, 2019, 51(6): 41-44.
[3]	Jiang Ke,Zhou Kanggen. Synthesis of big-size cryolite from fluorine-containing wastewater by crystallization process [J]. Inorganic Chemicals Industry, 2019, 51(6): 53-56.
[4]	WANG Cheng, LI Feng-Ting, WU Sheng-Ju, ZHANG Bing-Ru. Study on Fenton reagent-modified fly ash for treatment of phenol wastewater [J]. INORGANICCHEMICALSINDUSTRY, 2011, 43(3): 50-.