Authors: V.I. Udovitsky, D.V. Frolov

Title of the article: The analysis of the existing methods of determination the polymeric flocculants efficiency in the processes of the coal sludges dewatering

Year: 2018, Issue: 1, Pages: 14-19

Branch of knowledge: Earth sciences

Index UDK: 622.7:658.512:622.765:622.794

DOI: 10.26730/1999-4125-2018-1-14-19

Abstract: Nowadays polymeric flocculants are widely used at the coal processing facilities to enhance the processes of coal sludges dewatering and wastewater clearing. Because of significant increase in expenses on polymeric flocculants purchasing for those operations it becomes more and more important to use those flocculants in the coal preparation processes with maximum efficiency. The efficiency of the flocculant usage is extremely dependent on the current season, chemical properties of water and the properties of the processed coal, and, considering all that, it is necessary to give full attention to the right way of choosing flocculant to use under conditions of a specific preparation plant. The authors wanted to analyze current methods to measure the flocculant efficiency when choosing one to use at the coal preparation plant and to optimize those methods when possible. In this paper, some methods of analysis of the flocculants efficiency, which are used at the coal processing plants in the present time, are listed. Those methods are further examined with the purpose of their enhancement. Following the recommendations indicated in the study will allow us to get the results that simulate the industrial ones.

Key words: dewatering thickening flocculants coal processing clean coal flotation tailings

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