| 摘要 |
An apparatus for detecting oil and other lighter-than-water contaminants in an effluent stream in a sewage system. The apparatus includes a disposable detector which floats in the effluent stream and detects oil and other contaminants having a specific gravity lighter than the water by absorbing the oil and such contaminants in an oleophilic material, permitting the oil and other contaminants to rise and collect in a collection tube. The acidity or pH of the effluent being monitored is determined by routing a portion of the effluent stream through the lower side of the detector across a litmus paper. The detector is held in the sewage system by a securing system which indicates whether the detector has been tampered with since it was installed.
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