Water quality has received considerable attention in allocation processes for maximizing the satisfaction of various sectors. However, pollutant impurities that impede adequate supply of water have a detrimental effect on the quality and harmful for living organisms including aquatic life. For the reduction of water pollution level, various chemical and biological treatment are available but the emergence of an amazing technology of a multiculture of anaerobic and aerobic beneficial microorganisms which are able to purify and revive nature.