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Step 11: Once the experiment is finished, generate and download a report on the report menu
of the software. Turn off the thermostatic water bath and the motors, including the motor
controller. Next, unplug the power adapters (for the Motor Controller and the Gas Volume
Measuring Device) from the power source. Disconnect the tubing and remove the lids from
the reactors and CO
experiments can often pose a challenge due to their tight fit, specially the tubing to the
different connectors. BPC Blue Configurations are equipped with a bottle/tube opening tool
to easily remove lids and tubing without the risk of damaging them and the connectors.
3.2 BPC Blue Aerobic Systems
3.2.1 Equipment Description
BPC Blue Aerobic Configurations are composed of four essential components: the incubation
unit, the CO
-absorption unit (in-situ apparatus), the detection device, and the oxygen
2
supplier bags.
The driving force behind biodegradation is the utilization of carbon present in the polymer as
a food source for microorganisms to grow. As the biodegradation process commences, carbon
dioxide (CO
) is generated. In the case, the CO
2
consumed through a chemical reaction with an alkaline solution contained in the GAA. This
CO
removal results in a negative pressure within the reactor, leading to an inflow of oxygen
2
from the gasbag to the reactor in order to restore equilibrium. Consequently, the instrument
continuously measures the accumulated volume of oxygen consumed as a function of time
throughout the entire experiment.
The Specific Biochemical Oxygen Demand (BODs) is used to determine the biodegradation
rate of the tested material and provide valuable insights regarding the dynamics of the
process.
removal bottles after the tests. Removing these components after
2
produced during biodegradation is effectively
2
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