| 摘要 |
A system is disclosed for controlling the amount of treatment composition, e.g., cationic coagulant, to be introduced into an aqueous medium, e.g., a laundry waste water, having a content of fats, oils and/or grease (FOG) which is to be reduced. This system comprises a plurality of detectors each of which is adapted to determine a parameter, other than the FOG level, of a material comprising the components of the aqueous medium and to provide a determined signal indicative of the determined parameter; and an automatic processor provided with a relationship of the amount of treatment composition to be introduced into the aqueous medium to reduce the FOG of the aqueous medium to a given level as a function of the plurality of determined signals, and adapted to receive the plurality of determined signals and to provide a control signal to a source of treatment composition to control the amount of treatment composition introduced from the source of treatment composition into the aqueous medium.
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