A Review on Removal of Heavy Metals from Contaminated Water using Hydroponics Technique

Heavy metals are among the important among the contaminations in the environment. Eventhough, several methods are already available for removal of these contaminants, but most of them are costly and are difficult to get optimal results. Currently, phytoremediation, phytoaccumulation and phytostabilisation are emerging, effective and affordable technological solution used to extract or remove inactive metals and metal pollutants from contaminated water. These technologies are environmental friendly and potentially cost effective. This paper aims to review details about the removal of heavy metals of lead, cadmium, zinc and chromium. Additionally, it describes several plants and their growing conditions and their adsorption rate in various parts of the plants.