Guidelines for Wastewater Handling from Offshore Petroleum Facilities in Vietnam

13:06, 10/07/2024

Circular 22/2015/TT-BTNMT regulates environmental protection in the use of drilling fluids; waste management and environmental monitoring for offshore petroleum activities issued by the Minister of Natural Resources and Environment of Vietnam on May 28, 2015.

Wastewater Handling from Offshore Oil Works, Circular 22/2015/TT-BTNMT

Illustrative image (Source: Internet)

Circular 22/2015/TT-BTNMT stipulates that the wastewater discharged from offshore petroleum works must be handled and disposed of in accordance with the National Technical Regulation of Vietnam on wastewater from offshore petroleum works.

Additionally, other wastewater sources generated from offshore petroleum works shall be collected, treated, and disposed of according to the provisions in the Table below:

Requirements for Collection, Treatment, and Disposal for Wastewater Sources Generated from Offshore Petroleum Works in Vietnam

No.	Discharge Location	Wastewater Source	Requirement
1	Less than 03 (three) nautical miles from shore	Machine and equipment cleaning water, oil storage tank cleaning water.	Collect, treat, and dispose of to ensure compliance with the National Technical Regulation on industrial wastewater.
1	Less than 03 (three) nautical miles from shore	Domestic wastewater	Collect, treat, and dispose of to ensure compliance with the National Technical Regulation on domestic wastewater.
2	03 (three) to 12 (twelve) nautical miles from shore	Machine and equipment cleaning water, oil storage tank cleaning water.	Collect, treat, dispose of and obtain an oil pollution prevention certificate as per the requirements stipulated in Appendix I of the Marpol Convention.
2	03 (three) to 12 (twelve) nautical miles from shore	Domestic wastewater	Collect, treat, dispose of and obtain a domestic wastewater pollution prevention certificate as per the requirements stipulated in Appendix IV of the Marpol Convention.
3	More than 12 (twelve) nautical miles from shore	Machine and equipment cleaning water, oil storage tank cleaning water.	Collect, treat to ensure the maximum oil content does not exceed 15 mg/l before discharge into the sea.
3	More than 12 (twelve) nautical miles from shore	Domestic wastewater	Collect, discharge into the sea.

For details, see Circular 22/2015/TT-BTNMT, effective from July 20, 2015.

Le Hai

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