And of 80 water samples taken in the state from ship discharge tanks last year, just one met the federal standards for suspended solids and fecal coliform, which is a bacterium found in human waste.
Discharge from tank effluents in aquaculture contain dissolved nutrient such as nitrogen (N) and phosphorus (P), specific organic and inorganic compounds, and total suspended solids (TSS).
The lead aircraft discharged two tanks, waited four seconds, then discharged the other two.
Accordingly, if the pressure difference between tanks A and B is known, the purge ratio from the discharge point in tank B can be calculated.
Tank discharge gas/vapor flow problems are frequently encountered in both practice and design.
Therefore, nitrogen gas can purge to the atmosphere from the discharge points in tank B. Another detail given in Fig. 4 is the nitrogen gas ratio for every pressure value of the nitrogen ammonia mixture.
Many boaters -- who often don't go to pump-out stations because of the time and expense involved -- discharge their septic tanks directly into the water, contaminating shellfish and public beaches, according to the county.
In entrainment-type aerators, liquid pumped by a centrifugal pump is mixed with air, usually entrained through a venturi; the bubbly mixture is then discharged into a tank.
For the materials balance, the defined environmental compartments for oil accumulation were sediments, water column, and the water surface, while the discharge from the tanks was presumed to be the primary sink.
This study demonstrated the feasibility of producing healthy juveniles of the Pacific white shrimp under limited discharge conditions in tanks operated with foam fractionators with good growth, survival, yield and FCR results.
