METHOD AND DEVICE FOR DETERMINING CONCENTRATION OF ACETATE-ASSIMILATING METHANE-PRODUCING BACTERIA

摘要

PURPOSE: To provide a method of simply and easily determining the concentration of acetate-assimilating, methane-producing bacteria by utilizing the correlation with its gas-liberation rate, as a useful information source for controlling the anaerobic treatment of waste water and a device therefor. ;CONSTITUTION: The solution in the anaerobic digestion tank 21 is sampled, poured in several small digestion/fermentation tanks 11. They are stirred as they are thermally insulated, then sodium acetate is poured into the digestion/ fermentation tank 11 using an automatic pouring means in several portions to liberate gas and the gas liberation rate is measured with a gas flowmeter 13 to select the momentarily maximum gas liberation rate. Then, correlation function between the maximum gas rate and the bacteria concentration is used to calculate the concentration of the acetate-assimilating, methane-liberating bacteria by means of a calculator 24.;COPYRIGHT: (C)1996,JPO