HOME > CSR/Environment > Environment > Conservation of Ocean Environment

Conservation of Ocean Environment

Japanese

CSR・環境
CSR
Safe Operation
Environment
Human Resources Development
Social Contribution Activities
Dialogue with Stakeholders
External Recognition
Safety, Environmental and Social Report

By rigorously ensuring safe operation, the MOL Group is working to prevent marine pollution caused by marine accidents. At the same time, the Group is taking into consideration biodiversity and actively pushing ahead with measures to protect the seas and oceans, which are not only our place of business, but also the shared heritage of everyone on Earth.

Approaches to Marine Environmental Protection

Double-Hull Tankers

We have adopted double-hull vessels in our tanker fleet in order to prevent spills of crude oil, petroleum products, and chemicals caused by a grounding or collision of vessels.

Double-Hull Fuel Tanks

All vessels carry fuel for their voyages. Therefore, in the same way as with tankers, we have pushed the adoption of double-hull fuel tanks in order to reduce the risk of oil leaking into the ocean in the event of an accident.

Car carrier, Containership

World-first to Adopt "NSafe®-HULL" to Ensure Superior Collision Safety

In a world-first, MOL adopted highly ductile steel plate NSafe®-HULL, developed by Nippon Steel & Sumitomo Metal Corporation, for a newbuilding vessel. NSafe®-HULL plates absorb side impact to the hull three times more effectively than conventional steel plates, thereby reducing the risk of cracks in the hull and significantly increasing the safety of the vessel. For the new vessel, use of NSafe®-HULL for the sections such as the side plates of cargo holds and fuel tanks, where hull strength is especially critical, will improve puncture resistance to help prevent flooding, protect cargo, and prevent serious oil leakage damage to the marine environment.


Fig.1: Portions in red and yellow are built with NSafe®-Hull highly ductile steel


Fig.2: NSafe®-Hull sections in red

Processing of On-board Waste, Waste Oil, and Bilge

  • On a vessel, which is also a home for seafarers, the same type of garbage as a household, plus various waste unique to ships, such as loading and packing materials, is generated. On our operated vessels, based on the MARPOL Convention, we draw up on-board waste management plans requiring separation, collection, storage and disposal of on-board waste. Waste management officers supervise this process, and work to build thorough awareness of the plan among officers and crew members. Food waste and other biodegradable trash are ground into small particles and disposed of in specified areas of the open sea, and plastic waste is disposed of appropriately on land.
  • Fuel oil for vessels contains many impurities. Water and other contaminants are extracted by pre- treatment before the fuel is used in engines and other equipment. Waste oil containing water and impurities from pre-treatment is heated in a special tank to remove water, and then incinerated in conformity with environmental regulations.
  • In a vessel's engine room, bilge water (waste water containing oil) is generated by leakage from seawater pipes and equipment and during maintenance work. We have introduced a bilge source separation system that categorizes bilge water in three stages according to the presence of oil, and collects and disposes of it properly.

Top of Page

Ship Recycling Issues

Aged vessels need to be scrapped from the viewpoint of both safe operation and marine environmental protection. In May 2009, the IMO adopted the Hong Kong Convention for the purpose of solving scrapping-related issues, and the ratification process is moving ahead. The convention prohibits or limits the content of stipulated harmful substances aboard throughout the life of the vessel, and requires ship owners to create, maintain, and update an inventory list including the amount and locations of harmful substances aboard. The inventory list is provided to the recycling yard when the ship goes out of service.

Ship Recycling

We select environment-friendly recycling yards in conformity with the Hong Kong Convention. We check a broad range of items through site inspection including whether a particular yard's environmental management meets ISO 14001 or equivalent standards, and whether scrapping methods and procedures meet acceptable requirements such as environmental protection, occupational safety, and human rights.

The MOL Group was one of the first to start preparing inventory lists to ensure a smooth response to the requirements of the convention. We share information related to ship recycling as well as conditions at recycling yards.


Scrapping operations at a safe, environment-friendly recycling yard

Top of Page