| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a grease strap for decomposing oil in a liquid vessel with a biological preparation, having a simple structure to manufacture at a low cost, unnecessary for securing a separate installation space for a prescribed device and having beauty appearance. SOLUTION: A cylindrical activating chamber 4 provided with a communicating port 3 is vertically provided in the liquid vessel 2 by fixing to a rear surface of a cap plate 5 for shielding the upper part of the liquid vessel 2, the communicating port 3 faces a lower position than an oil layer X1 separated and floated by difference of the specific gravity, a feed port 7 for the biological preparation 6, which is provided with an opening and closing cap communicated with the inside of the activating chamber 4, is provided on the cap plate 5 and activation and propagation of microorganisms for decomposing oil are excellently performed in the activating chamber 4 by applying aeration at least in the activating chamber 4.</p> |
