At Aster Bio, we are often asked about startup of new waste treatment systems and the impact of new industrial process streams on biomass. While toxicity tests such as Tox-Bac or Tox-N are useful in screening for toxicity to existing biomass, we often have cases where the customer has no existing biomass (new systems) or wants to know more about cell yield and kinetic rates than is given in quick toxicity testing.
The way we determine cell yield and kinetic rates is through the use of a bioreactor or chemostat. This unit can be adjusted to meet the anticipated environmental values of the system. In most cases we run a complete mix with excess dissolved oxygen when simulating aerobic treatment systems.
What do you learn from running this type test?
The way we determine cell yield and kinetic rates is through the use of a bioreactor or chemostat. This unit can be adjusted to meet the anticipated environmental values of the system. In most cases we run a complete mix with excess dissolved oxygen when simulating aerobic treatment systems.
What do you learn from running this type test?
- Cell yield per unit chemical or COD/BOD
- Degradation rates of individual chemicals
- Impact on microbial makes up of MLSS using Environmental Genomics 16S screening
- Evaluate floc and EPS formation on the new influent
- And determine which microbes are the best fit for treating the waste.
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