As a result of the world's growing industrialization and urbanization, developing nations have the densest populations worldwide. Due to numerous anthropogenic activities, this population growth has resulted in the generation of huge quantities of waste and reclaimed water. The main challenge is creating approaches so that they support wastewater treatment. Therefore, bioremediation is regarded as one of the most environmentally friendly, economical, safer and cleanest technologies for cleaning up sites contaminated with a variety of contaminants, including heavy metals, inorganic pollutants, organic pollutants, oil spill, dye and pesticides. The use of microorganisms found in nature, such as bacteria, fungus, and microalgae has emerged as an ecofriendly method. Using their unique molecular biodegradation pathways, novel bioremediation organisms offer innovative and useful insights. Enzymes, metabolites, and other bioactive chemicals produced by bacteria involved in water treatment can be identified primarily through the use of metagenomics techniques. This review speeds up research on the role of bioremediation in water purification while also providing a brief discussion of the environmental effects of water pollution.