Metal-bearing solid wastes are an important secondary source of metals. Compared to
mining from ores, the recovery of metals, especially precious metals from rich secondary …

This paper presents an overview of the various methodologies used in the recovery of gold
from secondary sources. Gold recovery is interesting due to its vast industrial applications …

Waste electric and electronic equipment, or electronic waste, has been taken into
consideration not only by the government but also by the public due to their hazardous …

Biosorption is a technique that can be used for the removal of pollutants from waters,
especially those that are not easily biodegradable such as metals and dyes. A variety of …

The marine algae Sargassum sp., Padina sp., Ulva sp., and Gracillaria sp., harvested locally,
were investigated for their biosorption performance in the removal of lead, copper, cadmium …

Recovery of precious metals like gold, silver, palladium platinum etc. is interesting due to its
high market prices along with various industrial applications. Conventional technologies viz …

During the last two decades, extensive attention has been paid on the management of
environmental pollution causal by hazardous materials such as heavy metals …

To meet the global challenges of elemental sustainability a holistic approach to the
extraction, use and recovery of precious and critical metals must be developed. Biosorption …

Biosorption is a variant of sorption techniques in which the adsorbent is a material of
biological origin. It has become an economic and ecological alternative for the treatment of …

Presence of heavy metals in the aquatic system is posing serious problems and chromium
has been used in many industries and the removal of chromium ions from waste waters is …