Exploited application of sulfate-reducing bacteria for concomitant treatment of metallic and non-metallic wastes: a mini review

摘要: A variety of multidimensional anthropogenic activities, especially industrial level, are contaminating our aquatic and terrestrial environments with a metallic non-metallic pollutants. The pollutants addressed specifically in this review heavy metals various compound forms sulfates, respectively. Direct indirect deleterious effects the both types to all life well-known. treatment such is therefore much necessary before their final discharge into environment. This summarizes productive utility sulfate-reducing bacteria (SRB) for economical concomitant above mentioned wastes. Utilization agro-industrial wastes some environmental contaminants including hydrocarbons, as growth substrates SRB, also suggested proved efficient review. Mechanistically, SRB will utilize sulfates terminal electron acceptors during respiration while utilizing and/or hydrocarbon donors/carbon sources generate H2S. biogenic H2S then react vigorously dissolved present wastewaters thus forming metal sulfide. sulfide being water insoluble heavier than settle down precipitates. In way, three i.e., metals, be treated simultaneously.