Standard Practice for Determining the Performance of Oil/Water Separators Subjected to Surface Run-Off

Importancia y uso:

5.1 The Clean Water Act promulgated the implementation of water quality standards and contamination limits for a wide range of pollutants including oil and grease. Specifically, the EPA prohibits “the discharges of oil that cause a film or sheen upon or cause discoloration of the surface of the water.” Several state and local agencies have adopted this statement in addition to setting concentration limits, that is, 15 mg/L or even 5 mg/L. The purpose of this practice is to evaluate the performance of a separator in regards to the regulations and user requirements.

5.2 Another purpose of this practice is to establish that a separator containing oil at its rated capacity would still be capable of meeting the above criteria when subjected to run-off.

5.3 This practice is not applicable if the influent to a separator contained a sudden release as much higher concentrations would be expected. For this case, see Practice D6157.

5.4 This practice is not applicable if the influent to a separator is conveyed by a pumping means.

5.5 The data generated in this method is valid for the separators tested only. The results of these tests may be extrapolated to smaller or larger size separators provided that applicable geometric and dynamic similitude are maintained. Where sound engineering method limits the use of extrapolation, that size unit must be subjected to testing.

5.6 The flow rate for all the tests must equal the manufacturer's total rated flow for the given separator at a given influent contamination level and for the selected effluent peak contamination concentration.

Subcomité:

D19.06

Referida por:

D6157-97R24

Volúmen:

11.02

Número ICS:

75.180.99 (Other equipment for petroleum and natural gas industries)

Palabras clave:

No. 2 fuel oil; oil/water separators; performance; SAE 90 lubricating oil; surface run-off;