Research on adsorption properties of vanadium in vanadium-containing waste liquid by diatomite

Sun Ning; Li Junhan

doi:10.7513/j.issn.1004-7638.2022.05.016

Volume 43 Issue 5

Nov. 2022

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Sun Ning, Li Junhan. Research on adsorption properties of vanadium in vanadium-containing waste liquid by diatomite[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 111-116. doi: 10.7513/j.issn.1004-7638.2022.05.016

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Sun Ning, Li Junhan. Research on adsorption properties of vanadium in vanadium-containing waste liquid by diatomite[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 111-116. doi: 10.7513/j.issn.1004-7638.2022.05.016

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Research on adsorption properties of vanadium in vanadium-containing waste liquid by diatomite

doi: 10.7513/j.issn.1004-7638.2022.05.016

Sun Ning,
Li Junhan

School of Vanadium and Titanium, Panzhihua University, Panzhihua 617000, Sichuan, China

Received Date: 2022-05-30
Publish Date: 2022-11-01

Abstract

Abstract

A large amount of vanadium containing wastewater is produced in the wet process of vanadium extraction, and its direct discharge causes serious environmental pollution and resource waste. Due to the advantages of large specific surface area, many pores, low density, strong adsorption performance and permeability of the diatomite, it has been widely used in environmental management fields. Using diatomite as an adsorbent, the effect of adsorption time, initial concentration of polluted liquid, pH value and diatomite dosage on the vanadium adsorption was conducted by static adsorption experiments. The adsorption thermodynamics fitting and kinetics fitting were researched according to the experimental data, and the adsorption mechanism and characteristics was analyzed. The results show that the main component of diatomite is SiO₂, with a small amount of montmorillonite and chlorite. The shape of diatom shell is discoid, the surface of the shell has numerous microporous structures. In the thermodynamic fitting, the adsorption process of diatomite is more in line with the Freundlich model, and the R² is 0.9010, which belongs to the multi-molecular layer adsorption and surface adsorption. In the kinetic fitting, the correlation coefficient of the quasi-second-order kinetic model is higher than that of the quasi-first-order kinetic model, the R² is 0.9954, indicating that the adsorption process is dominated by chemisorption. When the adsorption time is 24 h, the initial concentration of contaminated vanadium solution is 1 mg/L, the amount of contaminated solution is 50 mL, the pH is 5, and the dosage of diatomite is 2 g, the removal rate of vanadium can reach 98.21%. Therefore, diatomite has a good adsorption effect on vanadium in vanadium-containing waste liquid, and can be used as an adsorbent to treat vanadium pollution.
- vanadium-containing waste liquid,
- diatomite,
- adsorption,
- vanadium,
- removal rate

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References(11)

References

[1]	Du Guangchao. Research progress of vandium materials used in non-steel fields[J]. Iron Steel Vanadium Titanium, 2015,36(2):49−56. (杜光超. 钒在非钢铁领域应用的研究进展[J]. 钢铁钒钛, 2015,36(2):49−56. doi: 10.7513/j.issn.1004-7638.2015.02.009
[2]	Li Mei, Wang Qiang, Gao Hongwen, et al. Effect of vanadium content on properties of new high strength steel[J]. Iron Steel Vanadium Titanium, 2019,40(6):118−121,142. (李梅, 王强, 高宏文, 等. 钒含量对新型高强钢性能的影响[J]. 钢铁钒钛, 2019,40(6):118−121,142.
[3]	Peng Kebo, Gao Likun, Rao Bing, et al. Current status of vanadium resources and research progress on vanadium extraction with organic phosphorus extractants[J]. Chinese Journal of Engineering, 2021,43(5):603−611. (彭科波, 高利坤, 饶兵, 等. 钒资源现状及有机磷类萃取剂萃钒的研究进展[J]. 工程科学学报, 2021,43(5):603−611.
[4]	Du Weitong, Jiang Congxiang, Chen Zhuo, et al. Vanadium extraction by roasting from high chlorine and iron titanium tetrachloride tailings after vanadium removal[J]. Mining and Metallurgical Engineering, 2022,42(2):106−109. (堵伟桐, 姜丛翔, 陈卓, 等. 高氯高铁型四氯化钛除钒尾渣焙烧提钒工艺研究[J]. 矿冶工程, 2022,42(2):106−109. doi: 10.3969/j.issn.0253-6099.2022.02.026
[5]	Liu Zishuai, Zhang Yimin, Dai Zilin. Recovery of vanadium from vanadium-bearing wastewater of vanadium-titanium magnetite with solvent extraction by N235[J]. Nonferrous Metals (Extractive Metallurgy), 2019,(11):87−92. (刘子帅, 张一敏, 戴子林, 等. N235萃取法从钒钛磁铁矿沉钒废水中回收钒[J]. 有色金属(冶炼部分), 2019,(11):87−92.
[6]	Fu F L, Wang Q. Removal of heavy metal ions from wastewaters: A review[J]. Journal of Environmental Management, 2011,92(3):407−418. doi: 10.1016/j.jenvman.2010.11.011
[7]	Sun Pengcheng, Huang Zhanbin, Liu Luhan. The application pollution control in soil[J]. Environmental Engineering, 2015,33(7):144−147. (孙朋成, 黄占斌, 刘陆涵. 石棉尾矿渣在土壤重金属及农药污染治理中的应用[J]. 环境工程, 2015,33(7):144−147. doi: 10.13205/j.hjgc.201507032
[8]	Yuan Yawei, Li Yong. Research progress of ZSM-5 molecular sieve adsorbents used in pollution control[J]. Inorganic Chemicals Industry, 2019,51(10):18−21. (袁亚伟, 李勇. ZSM-5分子筛吸附剂应用于污染治理的研究进展[J]. 无机盐工业, 2019,51(10):18−21. doi: 10.11962/1006-4990.2018-0645
[9]	Kariana Moreno-Sader, Alvaro Garcia-Padilla, Alvaro Realpe, et al. Removal of heavy metal water pollutants(Co²⁺ and Ni²⁺ ) using polyacrylamide/sodium montmorillonite (PAM/Na-MMT) nanocomposites[J]. ACS Omega, 2019,4(6):10834−10844. doi: 10.1021/acsomega.9b00981
[10]	Ling Yulin, Zhou Jianhong, An Junlin, et al. Fabrication of BiOBr/RGO/diatomite and its photocatalytic degradation performance of formaldehyde gas under visible light[J]. Chinese Journal of Environmental Engineering, 2022,16(5):1558−1568. (令玉林, 周建红, 安俊霖, 等. BiOBr/RGO/硅藻土复合催化剂的制备及其在可见光条件下催化降解甲醛气体[J]. 环境工程学报, 2022,16(5):1558−1568. doi: 10.12030/j.cjee.202107126
[11]	刘阳. 超声波—微波辅助酸浸提纯硅藻土的试验研究[D]. 北京: 中国矿业大学, 2016. Liu Yang. Study on acid leaching purification of diatomite assisted by ultrasonic and microwave[D]. Beijing:China University of Mining and Technology, 2016.