E-Portfolio Microbiology II Week 4

Assalam and hi all,

This week Dr Wan taught us of the topic of Aspects of Biotechnology in Microbial Ecology where we learned about the beneficial and harmful effects of microorganisms. Generally, microorganisms can be divided into four types which are:

  • Microbes as Pollutants
  • Microbes as Cause of Pollution
  • Microbes as Indicator of Pollution
  • Microbes may reduce Pollution
Bioremediation 


Process used to treat contaminated media, including water, soil and subsurface material, by altering environmental conditions to stimulate growth of microorganisms and degrade the target pollutants. In many cases, bioremediation is less expensive and more sustainable than other remediation alternatives. Biological treatment is a similar approach used to treat wastes including wastewater, industrial waste and solid waste.

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