Efficacy of Acid-treated Sawdust in Decolourization of Tanning Wastewater

Authors

  • M. Alhassan Department of Chemistry, Sokoto State University, Sokoto, Nigeria
  • M. Suleiman Department of Chemistry, Sokoto State University, Sokoto, Nigeria
  • A. A. Isah Department of Chemistry, Usmanu Danfodiyo University, Sokoto, Nigeria
  • A. G. Abdulrashid Department of Chemistry, Sokoto State University, Sokoto, Nigeria
  • Y. Nasiru Department of Chemistry, Sokoto State University, Sokoto, Nigeria
  • A. Bello Department of Chemistry, Sokoto State University, Sokoto, Nigeria

DOI:

https://doi.org/10.30564/jees.v3i2.3699

Abstract

Colour removal from dye-bearing effluent is a serious challenge due to the difficulty in treating such wastewater by conventional treatment methods. The present investigation explores the decolourization of contaminated wastewater using acid-activated sawdust as an adsorbent. The physicochemical properties of wastewater samples labelled A, B, and C vizaverage temperature; pH; electrical conductivity; and total dissolved solids were determined using standard methods to be 302.63; 6.1; 284.47 µS/cm;35116.66 mg/L respectively. Colour removal efficiency of the adsorbent was studied under variable conditions (contact time, rate of agitation,loading). Experimental results demonstrated that the sawdust adsorbent has a significant capacity for colour removal from tannery effluent. There was significant variation in the absorbance of the treated samples. Adsorbent dose, stirring rate, and contact time were found to be directly proportional to colour removal while pH variation of the samples show that the effluents became less alkaline (slightly acidic) after decolourization.

Keywords:

Wastewater; Acid-modification; Sawdust; Physicochemical properties

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How to Cite

Alhassan, M., Suleiman, M., Isah, A. A., Abdulrashid, A. G., Nasiru, Y., & Bello, A. (2021). Efficacy of Acid-treated Sawdust in Decolourization of Tanning Wastewater. Journal of Environmental & Earth Sciences, 3(2), 55–60. https://doi.org/10.30564/jees.v3i2.3699

Issue

Vol. 3 , Iss. 2 (October 2021)

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