| 摘要 |
<p>A system for monitoring effluent discharge to determine one or both of a biochemical oxygen demand (BOD) and a toxicity of the discharge. The systemcomprises: a culture vessel comprising a sealable chamber 106 for culturing a fluid sample and a pressure measurement transducer for measuring a pressure in a headspace 104 of the chamber; and a data processing system to: input pressure data from the pressure measurement transducer; and determine a value for one or both of BOD and toxicity from the change in pressure measured by the pressure transducer. In another aspect, a pair of sets of bacteria are provided, which are in respective sealed enclosures that are physically linked together. Preferably, the bacteria comprises two different types of bacteria in returned activated sludge (RAS), which includes one or both of nitrogenous and carbonaceous bacteria.</p> |
