Abstract
The microbiolgical treatment of industrial wastes are now common practice
In many cases, it provides a very ecomomical means of rendering toxic substances suitable for discharge into sewers and natural surface waters.
There are natural oxygen-replenishing processes named self-purification, which/endow surface waters with a certain ability to overcome the polluting effects inflowing waters.
However, in spite of adequate treatments of materials discharged from factories and works should all soon face to severe pollution problems.
In general, mixed cultures containing many types of microorganisms are employed in the purification of industrial wastes, although in certain instances microorganisms with special resistance or metabolic activities are required.
The present review has summarized the microbial treatments of industrial wastes, and described in some detail on microflora of activated sludges.
