Role of Biofilms in Wastewater Treatment

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Biofilms are actually a collection of a single or more types of microorganisms that grow on different surfaces. Biofilms have been observed to grow on metals and minerals. Places in which they are found are mainly underwater and also underground sometimes even above the ground.


This System of Biofilm is actually a Well-developed technology where solid media are added to growth reactors thereby providing surfaces to attach for Biofilms as it helps to increase the concentration of microorganisms and also increases the rates at which contaminant depletion takes place. By this way a number of removal mechanisms such as bio-accumulation, biosorption, bio-degradation, biomineralization can take place.

 

The microbes in the Biofilm break-down different nutrients, like nitrogen or phosphorous containing compounds and other materials as well as trapped pathogens which are harmful and present in the wastewater. Once the pollutants are removed from the wastewater by biofilm, treated water of bio-filter can be used for many requirements of people.

 

One of the biofilm system which has a good application in Wastewater Treatment is Algal biofilm systems as they offer a simple and robust separation of the algal biomass from the bulk of the wastewater but is however limited to Industrial and Domestic Wastewater treatment.



 

References:


https://link.springer.com/article/10.1186/s13068-017-0798-9

https://www.livescience.com/57295-biofilms.html#:~:text=Biofilms%20are%20a%20collective%20of,on%20the%20surfaces%20of%20teeth.


https://scholar.google.co.in/scholar?q=bio+organisms+in+wastewater+treatment&hl=en&as_sdt=0&as_vis=1&oi=scholart


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