RSA - Model PF - Digital Flow Meters
RSA’s digital flow meters are useful for measuring flow rate from laboratory-scale anaerobic pilot plants. Flow rates range from 2.5 L/hr for the PF-8000F unit (left) to 6.5 L/hr for the PF-1000F unit (right).
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Applications
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Respirometry system for determination of biodegradation kenetics - Monitoring and Testing - Health and Safety Monitoring and Testing
Intrinsic kinetic tests involve adding relatively high concentrations of organic substrate to small concentrations of acclimated microorganisms so that the COD/VSS ratio typically is greater than 10. Kinetic parameters are then determined by non-linear modeling using well-known relationships between biological growth and oxygen uptake.
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Respirometry System for Biomass Activity Testing - Energy - Bioenergy
Pulse-Flow respirometers can be used to assess biomass activity for aerobic and anaerobic reactions. In aerobic tests, cultures are combined with nutrients, trace minerals, and an organic substrate – such as acetic acid or ethanol. The maximum oxygen uptake rate reflects the amount of active biomass in the test culture. Examples are shown below:
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Respirometry system for anaerobic toxicity testing - Monitoring and Testing
This example shows the results of dosing an anaerobic culture with three concentrations of an industrial cleaning agent followed by respirometric measurement of methane production. The threshold toxic concentration was less than 80 mg/L of product and 600 mg/L produced a 50% decrease in methane production rate.
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Respirometry System for Aerobic Toxicity Testing - Monitoring and Testing
This example shows the results of respirometer tests in which three concentrations of cyanide were added to a aerobic test culture that received phenol as an organic substrate. The threshold toxic concentration of cyanide was 1 mg/L
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