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Mathematical Problems in Engineering - Volume 2015 2015, Article ID 317483, 5 pages -

Research Article

School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China

Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou 221008, China

Received 21 August 2015; Accepted 19 October 2015

Academic Editor: George S. Dulikravich

Copyright © 2015 Zhijun Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The critical coagulation concentration CCC is defined as the minimum concentration of counterions to induce coagulation of colloidal particles. A modified calculation method was proposed to calculate CCC. Comparing the modified calculation method of CCC with the traditional calculation method, the critical condition of modified calculation method is stricter than traditional calculation method. The critical condition of modified calculation method is the maximum value of interaction force that is zero, and the critical condition of traditional calculation method is the maximum value of interaction energy that is zero. The calculation result of CCC based on interaction force is greater than the calculation value based on interaction energy. The CCC value of modified calculation method can ensure particles to coagulate definitely.





Autor: Zhijun Zhang, Liang Zhao, Yanan Li, and Mo Chu

Fuente: https://www.hindawi.com/



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