Water treatment system microorganism control

The environmental conditions in a waste water sludge treatment system are better controlled. It is probably for this reason that an overall 80 per cent increase of biogas productivity has been reached in a 2,500 m mesophilic digester upon inoculation with the hydrogen-producing microorganism. 

A bioreactor is a silo containing a slurry of contaminated soil mixed with water. The slurry is aerated and enriched with nutrients and microorganisms, as necessary, to control and optimize decomposition. Bioreactors are usually small-volume closed systems that allow collection and treatment of volatile components. Their small volume usually limits their use to batches of soil treated individually, such that on large sites bioremediation will be slow and expensive. Bioreactors are particulary useful for the treatment of contaminant hot spots at a site, deployed alongside other bioremediation techniques. 

---