Analysis of heavy metal in electrocoagulated metal hydroxide sludge (EMHS) from the textile industry by energy dispersive x-ray fluorescence (EDXRF)

Tanveer Mehedi Adyel, Syed Hafizur Rahman, Mala Khan, S. M. Nazrul Islam

Research output: Contribution to journalArticleResearchpeer-review

7 Citations (Scopus)

Abstract

Environmental pollution due to discharges of heavy metal containing sludge from textile industries is a common nuisance in Bangladesh, where no treatment of sludge is carried out before final disposals. Energy Dispersive X-ray Fluorescence (EDXRF) was employed in the present study to analyze the heavy metal content of Electrocoagulated Metal Hydroxide Sludge (EMHS) collected from a composite textile industry. Thirteen heavy metals, viz., Mn, Ti, Cu, Zn, Ni, Sr, V, Cr, Zr, Hg, Cd, Nb and Ga, were detected. Mn, Ni, Cu, Zn and Cd exceeded the permissible limit to apply the EMHS in agricultural land. Cr, Ni, Cu and Zn were compared to the values of the European legislation to evaluate the environmental risk and to classify the wastes as inert wastes or as wastes that have to be control landfilled. EMHS was categorized as class I and needs to be deposited in controlled landfills.

Original languageEnglish
Pages (from-to)478-487
Number of pages10
JournalMetals
Volume2
Issue number4
DOIs
Publication statusPublished - 3 Dec 2012
Externally publishedYes

Keywords

  • Bangladesh
  • Electrocoagulation
  • Landfill
  • Textile sludge
  • X-ray optics

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