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Evaluation and Characterization of Tannery Waste Water in Each Process at Batu and Modjo Tannery, Ethiopia

Author

Listed:
  • Abdrie Seid Hassen
  • Tesfalem Belay Woldeamanuale

    (Department of Environmental pollution, Central Ethiopia Environment and Forest Research Center, Ethiopia)

Abstract

The leather industry is suffering from the negative impact generated by the pollution it causes to the environment. Nearly 70% of the pollution loads of BOD, COD, and Total Dissolved Solids (TDS) are generated from soaking, liming, deliming, pickling and tanning and retanning processes. There is an enormous pressure from the various pollution control bodies to regulate and minimize the amount of pollution generated from the leather processing. The need for use of alternative to chemical methods to combat pollution problem have become necessary to protect the industry and to comply with the environmental norms. In the present study, effluent samples were collected from Batu and Modjoa tannery in Ethiopia. The effluent samples were collected from all stages of processing viz., soaking, liming, deliming, pickling, Chrome tanning and Retaining. The physicochemical parameters of the tannery effluent viz. pH, alkalinity, acidity, biochemical oxygen demand (BOD5), chemical oxygen demand (COD), total solids (TS), total dissolved solids (TDS), suspended solids (SS), chlorides and sulfides were determined. All the parameters included in this study are found to be higher than the prescribed discharge limits for tannery industries. The investigation of the tannery wastewater from different tanning processes gave a number of conclusions.

Suggested Citation

  • Abdrie Seid Hassen & Tesfalem Belay Woldeamanuale, 2018. "Evaluation and Characterization of Tannery Waste Water in Each Process at Batu and Modjo Tannery, Ethiopia," International Journal of Environmental Sciences & Natural Resources, Juniper Publishers Inc., vol. 8(2), pages 52-60, January.
    • Handle: RePEc:adp:ijesnr:v:8:y:2018:i:2:p:52-60
    DOI: 10.19080/IJESNR.2018.08.555732
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    More about this item

    Keywords

    earth and environment journals; environment journals; open access environment journals; peer reviewed environmental journals; open access; juniper publishers; ournal of Environmental Sciences; juniper publishers journals ; juniper publishers reivew;
    All these keywords.

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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