Surface modification of raw biomass directs an attractive approach for improvement of heavy
metal uptake from aqueous solutions. Spent black tea was modified with NaOH and HNO3 …

The effects of chemical modification of orange peel, bagasse, and a mixture of peel and
bagasse for lead ion removal from aqueous medium were evaluated. The chemical …

The effective removal of heavy metals from aqueous wastes is among the most vital issues
for many industrialized countries. During recent years Biosorption has gained imperative …

Chemical modification and microwave activation are cost-effective and eco-friendly
engineering methods to improve biochar's physicochemical and adsorption performance …

Pollution load of cadmium into the receiving waters is a threat to water resources, thus
limiting the clean energy production. During recent years biosorption has gained imperative …

In this study we activated pine barks (Pinus nigra) by using NaOH and this activated material
used for the removal of Pb (II) ions from aqueous solutions. Chemical activation and its …

This research deals with a highly efficient, selective, low-cost, and recyclable adsorbent for
the fast removal of lead (Pb)(II) ions from aqueous solutions, and an investigation of the …

Industrialization increases the number of heavy metals released into the environment. Lead
(Pb2+), nickel (Ni2+) and chromium (Cr6+) are among these toxic metals and cause …

Spent Camellia sinensis (black tea) potential to impound lead (II) from waste water was
assessed by batch adsorption experiments. Optimize dose of spent tea was explored as …

Untreated industrial effluents, particularly from tanneries and heavy industries, are the main
source of heavy metal pollution, which poses serious environmental risks. Lead is one of the …