REMOVAL OF CHROMIUM(VI) FROM WASTEWATER THROUGH ION EXCHANGE. KINETIC AND SCALE UP STUDIES

被引：7

作者：

Ahmad, Syed Waqas ^{[1
]}

Zafar, Muhammad Shahzad ^{[1
]}

Ahmad, Sajjad ^{[2
]}

Zia-Ul-Haq, M. ^{[3
]}

Ashraf, Muhammad ^{[3
]}

Rabbani, Javed ^{[4
]}

Ullah, Sami ^{[5
]}

机构：

[1] Univ Engn & Technol, Dept Chem Engn, Fac Engn, Faisalabad Campus Lahore, Faisalabad, Pakistan

[2] Univ Engn & Technol, Dept Nat Sci & Humanities, Faisalabad Campus Lahore, Faisalabad, Pakistan

[3] NFC Inst Engn & Fertilizer Res, Dept Chem Engn, Fac Engn, Faisalabad, Pakistan

[4] Ghulam Isahaq Khan Inst, Fac Engn, Dept Chem Engn, Toppi, Pakistan

[5] Univ Lahore, Dept Chem, Sargodha Campus, Sargodha, Punjab, Pakistan

来源：

ENVIRONMENT PROTECTION ENGINEERING | 2019年 / 45卷 / 01期

关键词：

AQUEOUS-SOLUTIONS; HEAVY-METALS; ADSORPTION; VI; CADMIUM; LEAD; CR;

D O I：

10.5277/epe190102

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Chromium(VI) ions were removed from industrial wastewater. In this regard, a rig was fabricated carrying alkaline anion resin. Various experiments were carried out by varying pH, temperature and volumetric flow rate of solution by employing a rig to study the kinetics of the ion exchange process. The rate constant (k) and maximum solid phase concentration of exchanged solute (q0) were calculated using the Thomson equation to scale up the purification process of industrial runoff of chromium(VI) from the tanning, photography and ceramic industry. Experimental optimization revealed that developed setup will remove chromium(VI) to a level of 5 mg/dm(3) from 300 mg/dm(3) in 40 000 dm(3) of wastewater. To achieve the best results for the flow rate of 10 000 dm(3)/day, 12.03 kg of anionic resin were recommended by fixing the pH of the setup at 7.4 while maintaining the treatment temperature at 20 degrees C.

引用

页码：17 / 29

页数：13

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