Nature Environment and Pollution Technology

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Assessment of Relationship Between Raw Coal and Effluent Quality of Zarand Washery Plant, Kerman Province, South East of Iran


Affiliations
1 Department of Studies in Earth Sciences, University of Mysore, Mysore-570 006, Karnataka, India
2 Department of Earth Science, Yuvaraja’s College, Mysore-570 006, Karnataka, India
 

The present study has been undertaken to assess the relationship between raw coal and effluent quality of Zarand coal washery plant, Kerman province in southeast Iran. Coal samples, raw coal feed, washed fine clean coal and middling were collected. In washing process, raw water (intake to washery) and effluent samples generated in the washeries, namely, fine coal jig under water and tailing pond water were collected during August-September 2009. In coal samples, trace elements were determined in various fractions of Zarand coal washery. Parameters such as pH, temperature, colour, odour, TSS, oil and grease, COD, and trace and heavy metals were measured in washery processing. TSS, COD and oil and grease were very high in water samples. Trace elements like Cu, Ni, Zn, Pb, Cr, Mn and As were found to be present in the process water indicating that these elements are not released by coal during washing.

Keywords

Zarand Coal Washery, Raw Coal Effluents, Tailing Pond Water, Trace Elements.
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  • Assessment of Relationship Between Raw Coal and Effluent Quality of Zarand Washery Plant, Kerman Province, South East of Iran

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Authors

Seyed Morteza Moosavirad
Department of Studies in Earth Sciences, University of Mysore, Mysore-570 006, Karnataka, India
M. Shankara
Department of Studies in Earth Sciences, University of Mysore, Mysore-570 006, Karnataka, India
M. R. Janardhana
Department of Earth Science, Yuvaraja’s College, Mysore-570 006, Karnataka, India

Abstract


The present study has been undertaken to assess the relationship between raw coal and effluent quality of Zarand coal washery plant, Kerman province in southeast Iran. Coal samples, raw coal feed, washed fine clean coal and middling were collected. In washing process, raw water (intake to washery) and effluent samples generated in the washeries, namely, fine coal jig under water and tailing pond water were collected during August-September 2009. In coal samples, trace elements were determined in various fractions of Zarand coal washery. Parameters such as pH, temperature, colour, odour, TSS, oil and grease, COD, and trace and heavy metals were measured in washery processing. TSS, COD and oil and grease were very high in water samples. Trace elements like Cu, Ni, Zn, Pb, Cr, Mn and As were found to be present in the process water indicating that these elements are not released by coal during washing.

Keywords


Zarand Coal Washery, Raw Coal Effluents, Tailing Pond Water, Trace Elements.