Abstract
Background: Certain heavy metals, in trace or ultra-trace quantities, are nutritionally essential as well as beneficial for a healthy life. This includes Cu, Zn, Fe, Ni, Cr, etc. which in fact although required by the living body in minute quantities but become toxic in larger dosages. Besides, heavy metals such as Pb, Hg, As, Cd are most often responsible to human poisoning.
Method: Most of them accumulate and travel up the food chain when discharged into surface water bodies from industrial, agricultural as well as domestic effluents due to man-made activities. In certain cases, they are also contaminated through natural causes such as soil/rock erosion, and salination too. These heavy metals through various means percolate into groundwater, thereby contaminating drinking water - which of-course, is a very important global issue to be concerned about. Result: To accomplish distribution of clean and fresh drinking water and promote wastewater management, varieties of green chemistry based- techniques as well as methodologies for heavy metal ion remediation are being employed today. Conclusion: This review aims at highlighting the commonly existing green- technologies adopted for remediation of heavy metals to obtain purified water.Keywords: Green technology, heavy metal ion, detoxification, drinking water purification.
Graphical Abstract
Call for Papers in Thematic Issues
Green concepts' for modern organic synthesis
The 'green revolution', which is literally happening before our eyes and affects every aspect of life, also poses increasingly difficult challenges in the field of chemical synthesis. New solutions and ideas aimed at environmental protection while taking into account the principles of sustainable development are still desired. In this context, ...read more
Green Thermochemical Processes for Hydrogen Production: Circular Economy Approach
The Special Issue ?Green Thermochemical Processes for Hydrogen Production: Circular Economy Approach? welcomes research, review and mini-review papers focusing on the study and development of thermochemical processes for the valorization of byproducts, wastes, wastewaters and biomass to Hydrogen in a green and sustainable way. Processes driven by the supply from ...read more
Recent Advances on Green Catalysis and Drug Discovery
To save our loving ?Mother Nature? from the ever increasing chemical pollution scientists are continuously modifying their chemical processes to make them sustainable. As a result, last decade has shown a tremendous outburst in modifying organic transformations by following green credentials. Catalysts play an important role in organic transformations. Involvement ...read more
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