The use of Microorganisms to remove contaminants from wastewater is effective and widespread.  To choose the right system from the many options offered, understand the various techniques available and evaluate them based on your requirements.

Download the entire article (Reproduced with permission from Chemical Engineering, October 2005)

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Rotating Biological contactors (RBCs)
Diffused Aeration
Jet Aeration
Surface Aeration
Orbal® Multichannel Oxidation System
Vertical Loop Reactor (VLR®)
Sequencing Batch Reactors (SBR)
Membrane Bioreactors (MBR)
PACT® Systems