| 摘要 |
An apparatus is provided for producing specific concentrations of waterborne pollutants diluted in unfiltered seawater and for periodically delivering the seawater/pollutant dilutions to a plurality of experimental test aquaria at selected flow rates. A seawater feed tank containing the unfiltered seawater drains, under the force of gravity, into a seawater feed trough. The seawater feed trough is constructed to allow the unfiltered seawater to escape therefrom at a plurality of seawater escape locations under the force of gravity. A plurality of seawater cells are aligned beneath the seawater feed trough to receive the unfiltered seawater escaping therefrom. Means are further provided to limit the amount of unfiltered seawater in each of the seawater cells to a preselected amount. In a similar fashion, a pollutant feed tank containing the waterborne pollutants drains under the force of gravity into a pollutant feed trough. The pollutant feed trough is constructed to allow the waterborne pollutants to escape therefrom at a plurality of pollutant escape locations under the force of gravity. A plurality of pollutant cells are aligned beneath the pollutant feed trough to receive the waterborne pollutants escaping therefrom. Means are further provided to limit the amount of waterborne pollutants in each of the pollutant cells to a preselected amount. The seawater and pollutant cells are periodically and simultaneously drained under the force of gravity into a plurality of mixing chambers. Each mixing chamber receives the unfiltered seawater drained from one of the seawater cells and pollutants drained from one of the pollutant cells. The resulting seawater/pollutant dilution formed in each of the mixing chambers is then delivered under the force of gravity to one of the experimental test aquaria.
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