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A: Three hard-to-treat filaments are the main cause of excessive foaming
in wastewater plants (WWTPs). Unfortunately, correctly identifying the
filament bacteria in your system can be difficult.
The Problem Bacteria
Nocardia are caused by excess grease, long MCRTs (mean cell residence times) and increases in temperature. [gram
(+) bacteria]
Microthrix Parvicella are caused by excess animal and
vegetable greases and oils. They prefer low F:M and colder temperatures.
[gram (+) bacteria]
Type 1863 are caused by excess greases and fats, low
F:M, and a
decline in aeration basin pH. [gram (-) bacteria. It will show up as a
pink dashed line.]
The VitaStim Solutions
To treat foaming from these three bacteria, we recommend using our VitaStim
2200 or VitaStim
900L liquid – two extremely powerful formulas to digest the
available grease and cut off their food source. Usage requirements are
system dependent; for recommendations, contact us at 1-888-757-9577 or
via email (bugman@teamaquafix.com).
If you're having trouble determining the type of bacteria in your system,
we offer our consulting
expertise.We can identify the bacteria or we can train your personnel in the identification
process. (For small systems with limited budgets, we can still help you.
Call us to discuss your situation.)
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Do you have a question for the Bugman? Send an e-mail to bugman@teamaquafix.com or give him a call at 1-888-757-9577 (8:00 am – 5:00 pm CST, M-F).
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