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The present set-up
consists of 2 Nos. upward flow packed bed reactors. The set-up is designed
so that the reactors can be operated either parallel or in series. A buffer
tank is provided in between the reactors to permit the discharge of excess
flow from the first reactor when the second rector is operated in series but
at a low flow rate. Individual Peristaltic pumps are provided for each
packed bed reactor to set and control the flow rate of liquid. Two heater
surrounds the reactor to heat the liquid passing through the reactor and
temperature of the liquid in reactor can be controlled by means of Digital
Temperature Controllers provided individually for each reactor.
The gas collecting
vessels (2 Nos.) are provided and gas can be collected using volumetrically
calibrated collecting vessel, which collects the gas by operating water
displacement method. A constant head, liquid seal device ensures that the
gas pressure in the reactor is maintained at a constant level throughout the
run. The vessel can be refilled with water during the run without breaking
the liquid seal.
Sampling of liquid and
gas can be done with the help of provided sampling port at appropriate
positions. Non-return valves and siphon break are provided to ensure that
each reactor is running at constant volume. Further this arrangement also
prevents the danger of accidental symphonic action.
EXPERIMENTATIONS:
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To study the characteristics of Anaerobic Digester.
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To determine the optimum operating temperatures, feed rates
and ratios.
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To study the effect of pH and influent nutrient
concentration.
UTILITIES REQUIRED:
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Electricity Supply
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Water supply.
TECHNICAL DETAILS:
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