What is the maximum allowed oil discharge at sea?

The tanker must be 50 nautical miles away from land. The instantaneous rate of discharge of oil content does not exceed 30 litres per nautical mile. The total quantity of discharge must not exceed 1/30000 of the total quantity of the residue formed cargo.

How much oily water can we discharged at sea as per Marpol regulation?

B Discharges in special areas 4 In respect of the Antarctic area, any discharge into the sea of oil or oily mixtures from any ship shall be prohibited….A Discharges outside special areas.

.1	the ship is proceeding en route;
.4	the oily mixture does not originate from cargo pump-room bilges on oil tankers; and

How many ppm can discharge oily bilge water to the sea?

15ppm
Oily water separator: It only allows effluent of less than 15ppm to get discharged out at sea.

How far from land must a tanker be before it can discharge oily mixtures?

(d) When more than 12 nautical miles from the nearest land, any discharge of oil or oily mixtures into the sea from a ship other than an oil tanker or from machinery space bilges of an oil tanker; that is not proceeding enroute; shall be in accordance with paragraphs (b)(1), (b)(2), (b)(3), (b)(4), and (b)(5) of this …

What are the requirement for discharging oily water overboard for cargo vessel?

MARPOL has a regulation under ANNEX I which limits the oil content in the bilge water that vessel can legitimately discharge into the sea. It is now a requirement for all vessels to have an oil discharge monitoring and control system along with an oil filtering equipment known as the Oily Water Separator (OWS).

What is the maximum amount of oil content of the effluent?

the following conditions: the oil content of the effluent without dilution does not exceed 15 ppm, and 3.

Can you discharge NLS into the Antarctic Ocean?

8.2 In the Antarctic Area any discharge into the sea of noxious liquid substances or mixtures containing such substances is prohibited.

When can you discharge oil in the water?

33 CFR 151.10 regulates the discharge of oily mixtures by all oceangoing vessels. Discharges of oil or oily mixtures are prohibited unless the oil content of the effluent is less than 15 ppm, the vessel has in operation OWS equipment, and the vessel meets various other requirements depending on its location.

How many nautical miles from the nearest shore is untreated sewage can be discharged into the sea?

Discharge of sewage Prohibited except when the following requirements are complied with: Comminuted and disinfected sewage: at least 3 nautical miles from the nearest land, or. Sewage not comminuted or disinfected: at least 12 nautical miles form the nearest land.

What must be ascertained before discharging oil from a cargo space?

The investigation should include, in particular, the wind and sea conditions, the track and speed of the ship, other possible sources of the visible traces in the vicinity, and any relevant oil discharge records.

Can you discharge untreated sewage into the sea?

The discharge of raw sewage into the sea can create a health hazard. Sewage can also lead to oxygen depletion and can be an obvious visual pollution in coastal areas – a major problem for countries with tourist industries. However, the discharge of sewage into the sea from ships also contributes to marine pollution.

At what distance from land can the discharge of comminuted and disinfected sewage be allowed?

Comminuted and disinfected sewage: at least 3 nautical miles from the nearest land, or. Sewage not comminuted or disinfected: at least 12 nautical miles form the nearest land.

How far away from the nearest land can a ship discharge oil?

It should be at least 50 nautical miles away from the closest land. The ship must not be within any special area. The ship must have dedicated oil content monitoring system with slop tanks and filtering device. Under no circumstance the discharge liquid should reach the limit of 30 litters per hour.

When is it prohibited to discharge oil into the sea?

(a) When more than 12 nautical miles from the nearest land, any discharge of oil or oily mixtures into the sea from a ship other than an oil tanker or from machinery space bilges of an oil tanker is prohibited except when all of the following conditions are satisfied – (1) The oil or oily mixture does not originate from cargo pump room bilges;

How much oil can be discharged from an oil tanker?

Under no circumstance the discharge liquid should reach the limit of 30 litters per hour. The total oil discharged must not be more than 1/30000 of the total quantity. There are many structural requirements for the cargo area of an oil tanker; to be in compliance with the Marpol regulations.

Is it allowed to discharge oily mixture from cargo space?

For discharge under special areas any discharge from cargo space; whether in form of oil or oily mixture treated or otherwise is prohibited. On other hand treated oily mixture from machinery space is allowed as long as the ship is in route; and the oily filter follows the minimum 15 ppm limit.