The Study on Environmental Impacts of Sewage due Coal Washery and Possibility of Recovery of eoal Fines

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Title	The Study on Environmental Impacts of Sewage due Coal Washery and Possibility of Recovery of eoal Fines
Topic:	Mining and Environment	Published Year:	2002
Presentation:	Oral	Published in:	[ 4th Congress on Safety, Health and Environment in Mines and Related Industries ]
Original Language:	Persian	Full Text Size:	Not Available

Abstract of the Article

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The Study on Environmental Impacts of Sewage due Coal Washery and Possibility of Recovery of eoal Fines

Authors:
[ B.Rezai ] - Amir Kabir University of Technology Tehran - Iran
[ M.Mehrdadi ] - Faculty of Eng. Tehran University Tehran - Iran
[ B.Veghar ] - Amir Kabir University of Technology Tehran - Iran

Abstract:

Run of mine coal with substantial amount of ash and other detrimental elements like posporous and sulfur can not be directly used in steel plants without benefici ation. At the same time, such industrial activities have lead to environmental pollution.The aim of This investigation was to recover coal fins and produce suitable water as a mine make up water from one side and to reduce environmental impacts of black water from coal washery plant.In This investigation, by coagulation stusies under optimized conditiones, it is possible to recover more than 90% of coal fines with reduction of BOD and COD to the tune of 170 and 900 mg/lit respectively.

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