Advances in Chemotactic and Non-chemotactic Bioremediation of Water: A Comprehensive Review

Pollution has reached to a critical threshold affecting the climate and diversity of the planet Earth. All global authorities have included pollution control in their agenda for near future. Most of the environmental research nowadays is focused on removing waste generated by anthropogenic activities, may it be solid, liquid or gaseous waste. Bioremediation is believed to be the most eco-friendly approach for reducing or removing pollutants contaminating different matrices of the environment. There are various methods covered under the umbrella term of bioremediation. Chemotaxis-mediated bioremediation attracted attention of several research groups since early decade of twenty first century due to improved efficiency achieved by this strategy. There is very limited literature available on comparative account of non-chemotactic and chemotactic bioremediation. In this review, authors have extensively discussed about research developments in non-chemotactic and chemotaxis mediated bioremediation comparing the efficiency and scale of the processes.