Selection of a suitable technology for contamination remediation at a particular site is one
of the most challenging job due to extremely complex soil chemistry and aquifer characteristics and no
thumb-rule can be suggested regarding this issue. In the past decade, iron based technologies, microbial
remediation, biological sulphate reduction and various adsorbents played versatile and efficient remediation
roles. Keeping the sustainability issues and environmental ethics in mind, the technologies
encompassing natural chemistry,