The removal of chromium(VI) from aqueous solutions by Fagus orientalis L.

Equilibrium and Kinetic Parameters Determination of Cr(VI) Adsorption by Hogla Leaves (Typha elephantina Roxb.)

“…Natural materials which are available in large quantities or certain waste products from industries or agriculture have drawn attentions to researchers to be used as inexpensive adsorbents. Some of these are tea factory waste [4], eucalyptus bark [5], Hevea brasilinesis sawdust [6], beech sawdust [7], the agricultural byproduct of Lentinus edodes [8], non-living microbial biomass [9], fresh water algae [10], clay mineral [11], phosphate rock [12], etc. Among these adsorbents the ability of biological materials to adsorb metal ions has drawn considerable attention for the development of an efficient, clean and cheap technology for wastewater treatment [4].…”

Efficacy of mangrove leaf powder for bioremediation of chromium (VI) from aqueous solutions: kinetic and thermodynamic evaluation

“…Prakasham et al (1999) and Kadimpati et al (2013) suggested that the removal of heavy metals by adsorption on various biomass surfaces is the best alternative to the physico and chemical methods. In recent years, many researchers used the various bio-materials such as tea factory waste (Cay et al 2004;Nuhoglu 2005, 2006), sawdust (Acar and Malkoc 2004;Yu et al 2003), soya cake (Daneshvar et al 2002), sugar cane bagasse (Gupta and Ali 2004), green algae (Gupta et al 2001;Malkoc and Nuhoglu 2003), distillery sludge (Selvaraj et al 2003) for removal of heavy metals from waste waters. Most of the low-cost sorbents have the limitation of poor sorptive capacity, and thereby, for the same degree of treatment it generates more solid waste (pollutant laden sorbent after treatment) leading to disposal problems.…”

Removal of Chromium from Synthetic Tannery Effluent by Using Bioadsorbents

“…[1].The presence of heavy metals in drinking water can be hazardous to consumers; these metals can damage nerves, liver and bones and block functional groups of vital enzymes [2].Process waste streams from tanneries may contain heavy metals at concentrations exceeding the local discharge limits.. [3].These metals cannot be degraded or readily detoxified biologically and have tendency to accumulate in living material [4].Health and environmental issues derived from waste effluents are universally acknowledged problems. It is therefore necessary to find cheap and simple decontamination methods.…”