Hydro-physico-chemical Grouping of Cachar Paper Mill Effluents in Assam Using Multivariate Statistical Model

  • Sangeeta Dey
  • Manabendra Dutta Choudhury
  • Suchismita Das
Part of the Water Science and Technology Library book series (WSTL, volume 84)


Effluents from the paper mill are highly toxic and are one of the major sources of aquatic pollution. Their toxic nature is derived from the presence of several naturally occurring and xenobiotic compounds, which are formed and released during various stages of papermaking. In the present study, mill effluents are collected from three different stations around the Cachar paper mill (CPM) in Assam and samples are analyzed for 17 parameters such as appearance, color, odour, conductivity, total dissolved solids, pH, total alkalinity, hardness (total and Ca), chloride, nitrite, BOD and COD along with the heavy metals As, Cu, Cd, Cr, Fe, Pb and Zn. The results are compared with water quality standards prescribed by World Health Organization. Multivariate statistical analyses are performed on data sets obtained to gain a better understanding of the nature of each parameter in the sampling stations. The results show variation amongst stations that may be due to spatial variations amongst them. The results from this study can be used for water quality monitoring purposes.


Paper mill effluent Physico-chemical parameters Multivariate statistics 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Sangeeta Dey
    • 1
  • Manabendra Dutta Choudhury
    • 1
  • Suchismita Das
    • 1
  1. 1.Aquatic Toxicology and Remediation Laboratory, Department of Life Science and Bio InformaticsAssam UniversitySilcharIndia

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