Quels sont les moyens les plus efficaces d’éliminer les déchets provenant des opérations maritimes ?

The first step will be to reduce the generation of waste from marine operations which can be achieved by optimum use of rags, cotton waste etc. Implementing culture onboard to minimize, optimize and reuse of cleaning products. Developing, motivating and inspiring crew members towards minimum use and recycling of cleaning products. Having separate bins for used rags and reusable rags. Reducing and arresting the source of leakages all over the ship.

Waste generated from the Marine industries covers several areas from Solids, and Liquids. 1) Wast generated from Dry Docking needs to be properly disposed of ensuring minimul impact to the environment 2) Garbage 🗑 properly segregated and disposed of using a well audited Garbage Management Plan (GMP) 3) Bilge and oiley waters waste, to be stored and processed using an approved Oiley Water Separator system properly calibrated and audited. Donage to be stored incinerated and or shipped ashore for appropriate disposal. Cargo hold wash to be properly discharged ashore accordingly or at the IMO accepted offshore recommendation. Just to name a few...

Reducing waste water (bilge water), which has to be disposed of either through approved MARPOL separation equipment or transferred to reception facilites ashore. Both of which has a cost: Filter material for Oily Water Separators which can be quite high and the added risk of equipment malfunction putting tge vessel in breach of MARPOL Regulations. Disposal to facilites ashore can have a high cost as well, depending on the port. A way to reduce bilge water is not to bring seawater into the machinery spaces to start with. This can be achieved through clever design, such as the use if box coolers instead of plate coolers.

Most important factor of all. Sourcing less packaging and using recyclable waste, and implementing a source environment mgmt system is the only way forward.

Reducing source of waste on board is a huge topic. Below are some examples from different aspects - Using reusable or recyclable material for packaging can reduce waste in the chain - Stocking of spares of critical equipment can reduce downtime - Going completely digital on manuals and log books - Excellent inventry management tools

Establishing waste segregation on board is easy. The challenge is finding a port which doesn’t undo all the segregation and combine it all into one general waste skip.

- Establish robust waste segregation systems on vessels. - Categorize waste types (plastics, metals, hazardous materials). - Partner with recycling facilities or use onshore recycling infrastructure.

Les navigants font cela depuis des décennies. Les procédures existantes depuis des lustres ont mis en place un tri des déchets dont les infrastructures terrestres feraient bien de s’inspirer. Il me semble que nous sommes ici dans un blabla bien- pensant qui ne sert pas à grand chose.

Incentivar o uso de canecas parece simples mas reduz muito o lixo comum (cinza) a bordo das embarcações! Outro bom exemplo é programar o rancho para servir à fim de reduzir o lixo orgânico (marrom)

Segregation of waste can be done - Defining different types of waste bins all over on board the ship - Training of crew on waste segregation systems and handling procedures - Maintaining proper records of waste generated and how much was recycled - Bonus points to customers on efficient recycling practices

C'est sans doute l'option qui serait la plus efficace actuellement. Toutes les autres mesures citées dépendent de plusieurs facteurs dépendant de chaque pays, de chaque réglementation, de chaque pratique appliquée. Les navires se déplacent partout dans le monde et ne sont pas en mesure d'exiger le type d'intrants nécessaires à leur fonctionnement, ni le mode d'élimination des déchets qui est pratiqué là où ils font escale. Nombreux sont les chercheurs qui mènent des recherches pour des dispositifs d'élimination de déchets lesquels peuvent être installés sur les navires. Il faudrait donc leur donner l'occasion de faire installer leur fruit de recherches sur quelques unités flottantes et de promouvoir leur efficience.

Organic waste (food waste) is the most challenging in terms of the hetereogenous nature of it Ways that certain types of waste can be treated are - Installing grease separators from food waste - Black water treatment units like Membrane bio reactors - Grey water treatment equipments on board - Glass crushers - Billet machines that reduces the storage space of paper and dry cardboard

- Use treatment methods like incineration or biological processes. - Dispose of hazardous waste according to regulatory guidelines. - Employ safe disposal methods, such as landfilling with containment measures.

- Record keeping of all wastes generated on board and recycled - Minimizing disposal of waste overboard - Efficient methods of handling waste according to IMO regulations - Segregation of different kinds of waste in the early chain of waste generations - Regular training and re training of the crew to maintain waste treatment standards

Measures have to be put onboard ships to ensure the crews are consistently informed and well educated on matters waste disposal. Clear Labels have to be put in place to differentiate places of disposal such as plastics, papers and food wastes. Also garbage disposal plans have to be well checked regularly by the responsible officers to ensure effective waste handling and disposal.

- Comply with international conventions like MARPOL. - Adhere to guidelines set by maritime authorities. - Implement industry-recognized standards for consistent waste management.

Exponiendo ideas: - Realmente han sido un logro, pero en la práctica realmente no se cumplen, las malas practicas en el sector y la corrupción es unas de las principales causas del deterioro de estas regulaciones.

Less amount of waste generated diretly co relates to cost savings. - The no of equipments needed to handle redcues. This inturn brings down the energy required to run them - Less pollution to sea and keeping the marine ecosystem as it belongs - Following strict regulation brings reputation to the companies and draws in more customers

Marine debris prevention and removal bring both benefits and challenges. The benefits of preventing and removing marine debris include preserving the biodiversity of marine ecosystems, protecting the health and well-being of coastal and island communities, enhancing the reputation and competitiveness of the marine sector, and reducing operational and maintenance costs.

- Benefits include ecosystem preservation and cost savings. - Challenges include high costs of advanced technologies and varied regulations. - Overcoming challenges requires collaboration, innovation, and infrastructure development.

- Develop advanced waste treatment technologies. - Emphasize the circular economy in maritime practices. - Integrate digital solutions for real-time waste monitoring. - Explore new business models centered around sustainable waste management.

1.Implementing IoT devices to monitor and manage waste generation. Integrating digital technologies, such as AI, blockchain, and Machine Learning, to enhance waste management and reduce environmental impact. 2. Focusing on innovative approaches, such as bio-based plastics, recycled water desalination, and carbon capture, to drive sustainable growth in the shipping industry.

- Promote public awareness and education. - Foster collaboration between governments, industry, and environmental organizations. - Encourage continuous research and development for innovative solutions. - Establish a transparent reporting system to enhance accountability.

Environmental impact- Ensure that the policy and strategies have a significant positive impact on the environment. Economic viability-Implement strategies that are cost-effective and support the long-term sustainability of the shipping industry. The most important of all, social responsibility- Address the concerns of stakeholders, including passengers, crew members, and local communities, to ensure support and adoption of the policy.

Already in 2001 we were promoting onboard recycling solutions. Many times I was called the green guy from the north. Incineration using fossil fuel was the solution many shipowners preferred... Even throwing overboard! I left the maritime industry in 2012 and I hope that development of onboard waste treatment solutions have improved. And I hope that ALL shipowners are more responsible today than 20 years ago. Lets keep our oceans clean so that future generations can enjoy them as we have :)