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Temperature fluctuations affect biofilter performance in preliminary study

In a recent study, the authors set up a series of temperature-controlled tanks to determine the effects of temperature variation on biofilter performance. 

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Automated temperature-controlled recirculation systems
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Automated temperature-controlled recirculation systems

A temperature-control system with a central chiller was found to enhance chilling and research capacity over a system with multiple unit chillers because replicating experiments in a single process control system minimized variations in the temperatures and chilling rates in the individual tanks. Temperature-holding experiments found slight differences at different temperature levels.