Biosorption of nickel with barley straw

Bioresource Technology
Ayyasamy ThevannanCatherine Hui Niu

Abstract

Wastewater containing nickel sulphate generated from a nickel plating industry is of great concern. In the present work, biosorption of nickel by barley straw from nickel sulphate solution was investigated. Nickel uptake at room temperature (23+/-0.5 degrees C) was very sensitive to solution pH, showing a better uptake value at a pH of 4.85+/-0.10 among the tested values. The nickel biosorption isotherm fitted well the Langmuir equation. When the ionic strength (IS) of the solution was increased from less than 0.02-0.6M, nickel uptake was reduced to 12% of that obtained at IS of less than 0.02 M. Barley straw showed a higher nickel uptake (0.61 mmol/g) than acid washed crab shells (0.04 mmol/g), demonstrating its potential as an adsorbent for removal of nickel.

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Citations

Feb 12, 2013·Environmental Science and Pollution Research International·Kai HuangHongmin Zhu
Aug 19, 2014·Environmental Monitoring and Assessment·Alejandro Hernández-Estévez, Eliseo Cristiani-Urbina
May 6, 2016·Journal of Environmental Management·Nirav P RavalNisha K Shah
May 13, 2021·Scientific Reports·Atta Ul HaqMuhammad Kashif

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