RESPIRATOR BOTTLE FOR MEASURING BIOFILM RESPIRATION RATE, MEASUREMENT DEVICE AND MEASUREMENT METHOD

摘要

A respirator bottle for measuring biofilm respiration rate, comprising a bottle body (1), a carbon dioxide absorption tube (11) and a perforated separator (6) provided inside the bottle body (1). The perforated separator (6) partitions the inside of the bottle body (1) into an oxygen transfer stirring zone (8) provided with a stirring device (7) and a biofilm reaction zone (3) for placing an MBBR filler (2). The carbon dioxide absorption tube (11) is provided with a breathable hole (10) and contains a solution capable of absorbing CO₂. The perforated separator (6) has a first hole corresponding to the middle and lower portions of the perforated separator (6) and serving as a liquid exchange channel (5) and a second hole corresponding to the upper portion of the perforated separator (6) and serving as a gas exchange channel (12). The oxygen transfer stirring zone (8) is in communication with the biofilm reaction zone (3) through the liquid exchange channel (5) and the gas exchange channel (12). On the one hand, sufficient gas-liquid exchange in the oxygen transfer stirring zone (8) and the biofilm reaction zone (3) is ensured, and on the other hand, destruction of the biofilm on the MBBR filler (2) by the stirring device (7) is avoided, thereby achieving non-destructive, in situ determination of respiratory dynamics of the biofilm on the filler. The measurement process is simpler and faster, and the measurement results are more accurate and valid.