Keeping our ports clean
Two different types of wastewater are created on board vessels: black water and grey water. Black water is wastewater and sewage from toilets. Grey water in the wastewater from baths, sinks, laundry and kitchens, which can include fats, detergents and chemicals. Both types of wastewater can damage ecosystems if discharged into aquatic environments.
The challenge facing vessels is how to handle and treat these wastewaters in the most environmentally sensitive yet cost-effective manner, whilst ensuring compliance with relevant legislation.
The treatment of these wastewaters is the subject of a number of MEPC (Marine Environment Protection Committee) resolutions, but knowing how to effectively meet these requirements can be challenging. For a start, there are numerous suppliers of wastewater treatment systems and knowing which one would be best suited to your vessels requirements and operation can be a challenge. Secondly, understanding where you are permitted to discharge treated wastewater and the costs of disposing of it whilst in port can impact the operational costs of a vessel.