Scope of In-situ Bioremediation for Polluted Aquifers via Bioaugmentation

Globally, many geographical regions have been identified specifically for polluted groundwater as shown in Figure 1. There is a need for urgent technological interventions in order to supply safe drinking water to major population dependent on groundwater. According to recent report, more than 70 countries are vulnerable to various ill effects over health due to exceeding toxic metals such as arsenic contaminants above permissible limit in groundwater for example Mongolia, Indonesia, China (As range 50-2400 μg/L), Iran, Bangladesh (As range 0.25-1600μg/L), Argentina (As range 100-2000 μg/L) Taiwan (As range 1800 μg/L). According to the reports, more than 49% area of Bangladesh has contaminated groundwater with values of ‘As’ >10 μg/L and also, some of the Indian states are reported with contamination of heavy metals (up to 1-1300 μg/L) especially Arsenic in West Bengal, Uttar Pradesh Bihar and some regions of Punjab (Malwa), [1].