- Track populations of Ammonia Oxidizing Bacteria (AOB) & Nitrite Oxidizing bacteria (NOB). We all know that the AOB & NOB cultures are both slow growing and susceptible to upset. Genetic testing can monitor these populations and give early warning of population increase or decline.
- Find your true position on the growth curve - MCA data gives information on microbial diversity and if k-rate or r-rate strategists are dominating the biomass. This allows for great information that looks at the microbial populations rather than calculations such as F/M or MCRT.
- Systems with bulking tendencies - either filamentous or non-filamentous - have used MCA testing to monitor both filament and viscous bulking form microbes. The test helps guide operators before bulking effects effluent quality.
- Rapid information about changes in biomass makeup due to operational changes. Changing influent makeup, MCRT, aeration, or any other major control creates a change in biomass. MCA testing gives information about what is changing and how it will impact effluent quality.
A total microbial census of MLSS using advanced 16s rRNA sequencing is interesting, but what is the practical application of this big pile of data. As with most new testing, I often get the "what does this mean" question. So, I will highlight a few ways we are using the data.
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