HAMANN TECHNOLOGY FOR NEW US RESEARCH VESSELS

HAMANN AG is supplying sewage and wastewater management systems for three new US REGIONAL CLASS RESEARCH VESSELS currently under construction at GULF ISLAND SHIPYARD in Houma, Louisiana, USA.

The 199 feet / 60 meters long REGIONAL CLASS RESEARCH VESSELS were designed by Glosten from Seattle, USA, in cooperation with OREGON STATE UNIVERSITY. They provide accommodation and workplaces for up to 16 scientists and are operated by a crew of 13. Their purpose is the exploration of the coastal marine environment. The highest environmental protection requirements and the lowest possible noise emission played an important role in the development of the vessels design. The extensive new building project is financed by the NATIONAL SCIENCE FOUNDATION (NSF) and managed by the OREGON STATE UNIVERSITY.

Regional Class Research Vessel equippend with HAMANN sewage and wastewater technology

The first of the three research vessels will be launched this year as “RCRV Taani 1” and will be commissioned by the OREGON STATE UNIVERSITY on the west coast as part of the UNIVERSITY-OCEANOGRAPHIC LABORATORY SYSTEM (UNOLS).

The sewage and wastewater management systems on board the vessels are designed to treat black water from toilets and grey water from showers, washbasins, kitchen sinks and laundries, and can process a peak of 6,000 litres of wastewater per day. HAMANN HL-CONT PLUS 025 wastewater treatment plants with IMO MEPC.227(64) and USCG Type 2 (33 CFR 159) certification are used as a basis. The HAMANN DISSOLVED AIR FLOTATION (DAF) technology used in these plants does not require any filters or membranes, making the plants particularly low-maintenance and reliable. Even strong fluctuations in the volume of wastewater to be treated due to fluctuating numbers of people on board are no problem for these plants.

Regional Class Research Vessel equipped with HAMANN sewage and wastewater management system

Highly efficient HAMANN grease separators separate the grease components from the galley wastewater to prevent clogging of the pipelines by grease deposits and the formation of hydrogen sulphide in holding tanks.

Automatically controlled HAMANN tank aerators compensate for the lack of oxygen or oxygen consumption in the wastewater holding tanks, which, especially in connection with too high fat contents in the wastewater, promotes the formation of toxic and odorous hydrogen sulfide and ultimately of aggressive sulfuric acid.

Further information on the REGIONAL CLASS RESEARCH VESSELS can be found under the following link: https://ceoas.oregonstate.edu/ships/rcrv/

All graphics courtesy of Glosten, Seattle, USA

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Remote support by HAMANN AG

REMOTE SUPPORT
BY HAMANN AG

While this is a difficult time for the world in general, facing the COVID-19 pandemic, it is a good time to talk about remote support. Technical equipment doesn’t care whether it is an appropriate time to cause trouble or not. So what to do when a customer can’t fix a problem himself and help won’t be able to get there in person? Remote support is the answer.

Remote support is a sustainable way to offer technical customer support, because it does not only make sense in a crisis situation. With all the audiovisual communication tools at hand today, many issues can be solved remotely without having to physically travel thousands of miles. And to reduce travel, specifically air travel, helps us in another crisis that has been pushed from the news top spot by the current virus: the climate crisis.

However, what is HAMANN REMOTE SUPPORT able to do for our customers?

First of all, our highly skilled service engineers will communicate with the customer via telephone or email to narrow down the problem. Then, they will set up a videocall and the customer’s mobile device will enable our service engineers to “come on board” and take a look at the plant or component themselves. Under the guidance of the HAMANN service engineers, the customer carries out the appropriate actions.

No special equipment is needed and the amount of time, effort and cost to set up a remote support session is far less than actually flying in a service engineer in person.

But off course there are limitations to what can be reasonably handled in a remote support session. The need to deploy a service engineer on location rises with the complexity of the issue at hand. Our experienced service team will advice our customers on what is the best way to deal with a given problem.

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SEWAGE MANAGEMENT IS MORE THAN HAVING A SEWAGE TREATMENT PLANT

by Dipl. Ing. Olaf Hansen, Head of Technical Department at HAMANN AG

During the last months, the industry of wastewater and sewage treatment technology has seen some notable and partly confusing actions regarding the certification of products. Due to increasing pressure from both the industry and the legislative side, certificates for some sewage treatment plants on the market have been suspended or withdrawn by certifying bodies. This indicates that the certification system needs to be revised. A group of industry players – we are among them – has issued a call for action to improve the guidelines for the certification of sewage treatment plants.

Fortunately, it is the intention of many ship owners to reduce the environmental impact of their ships or just aiming to comply with existing regulations. As a matter of fact, these owners are exposed to a high financial risk when the sewage treatment systems on board do not comply with required effluent standards.

Public authorities around the world are getting more and more sensitive to marine pollution by sewage from ships. A recent example is the Maritime and Port Authority of Singapore (MPA Singapore) which has just issued a circular to all owners, managers and masters of Singapore-registered ships in which they point out that malfunctions of sewage treatment plants have been the most frequent reason for ships to be detained by Port State Control in the year 2019 so far.

If a certificate of an operating plant gets withdrawn because it does not meet the required effluent standards, the ship owner might be forced to have it replaced by another plant with a valid certificate and/or to pay a significant fine.

Considering this, we encourage all ship owners and shipyards to look beyond the certificates and to challenge us – the manufacturers – to deliver sewage treatment systems that perform in terms of effluent quality, ease of operation and reliability. We suggest to broaden the perspective and to take a look at what a sewage management system actually is – or should be.

Sewage management is more than having a sewage treatment plant. A sewage management system needs to be designed properly: From sewage collection via sludge handling to effluent discharge. Sewage treatment plants, black and grey water lines, grease separators, system separators preventing microbes from spreading against the flow from waste water lines into fresh water systems, holding tanks, tank aerations, transfer systems, sludge tanks, sludge processing facilities and performance monitoring are all part of the system. Off course, every project is different. Therefore a sewage management system has to be customized to cover the specific conditions on board.

There are a few key factors that influence how well a sewage treatment system performs. First and foremost, food waste and sewage lines strictly have to be separated. Food waste has a much higher BOD5 (Biological Oxygen Demand) value than raw sewage and therefore heavily increases the organic load on the sewage treatment plant. Grey water from galleys needs to run through a properly designed and dimensioned grease separator before being stored in a holding tank. Grease from galleys not only plugs up pipes and sensors, but also catalyzes the build-up process of hydrogen sulfide which is a toxic and extremely smelly gas inside the holding tanks. In the worst case, sulphuric acid may be formed inside the holding tanks which then attacks the piping and leads to a degradation of the effluent values.

Last but not least, the organic load of the sewage treatment plant should be monitored and controlled in order to maintain the organic design-load which was certified. For example, IMO resolution MEPC.227(64) requires a sewage treatment plant to produce the defined effluent values based on a TSS (Total Suspended Solids) value of ≥ 500 mg/l in the influent. Our sewage treatment plants are designed within these parameters but with a margin allowing for varying load situations. Operating the plant for a longer period above this margin leads to reduced treatment effectiveness and therefore a degradation of the effluent quality. In extreme cases, overloading can lead to a complete breakdown of the plant.

For us as a manufacturer it is evident that we cannot leave the planning and design of a sewage treatment system to the customers and just sell them sewage treatment plants. An important part of our business is consulting. The earlier we get involved in a project, the better the results can be. We often do workshops with ship design companies and naval architects before or at the very beginning of a project to improve the sewage management system as a whole. During the detail construction we closely work together with the shipyard engineers on creating the best possible conditions on board in order to operate our systems properly.

Sewage management is more than having a sewage treatment plant. It’s a properly designed wastewater management system. But even the best system is useless if operation and maintenance overtaxes the crew on board. It makes no sense to expect a ship’s crew to have expert knowledge in the field of sewage treatment like staff of most land based sewage treatment facilities have. Marine sewage treatment plants should be operated safely without years of prior training. We incorporate this aspect in the design of our systems and put a lot of effort in the automation of routine operations, high usability and low maintenance requirements. Only then, a well-designed sewage management system performs well.

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Stella Australis and Ventus Australis are equipped with HAMANN sewage and wastewater management systems

AUSTRALIS EXPEDITIONS TRUSTS IN HAMANN

Australis Expeditions trusts in HAMANN sewage and wastewater management systems for its vessels STELLA AUSTRALIS and VENTUS AUSTRALIS. Both cruise ships operate in the fjords and channels of Tierra del Fuego, Patagonia. The luxury expedition cruise company takes protecting the enviromnment very serious and has chosen us to supply the sewage treatment technology for their vessels. Read their environmental protection policy here: https://www.australis.com/site/en/why-australis/social-and-environmental-responsibility/

Both vessels have been built by ASENAV in Valdivia, Chile. Here are some key facts on the ships:

VENTUS AUSTRALIS
Year of construction: 2017
Capacity: 200 Guests
Cabins: 100

STELLA AUSTRALIS
Year of construction: 2010
Capacity: 200 Guests
Cabins: 100

The sewage and wastewater management systems on board the vessels are designed to treat black water from toilets and grey water from showers, washbasins, kitchen sinks and laundries, and can process a peak of 24.000 litres of wastewater per day. HAMANN HL-CONT PLUS 10 sewage and wastewater treatment plants with IMO MEPC.227(64) and USCG Type 2 (33 CFR 159) certification are used as a basis. The HAMANN DISSOLVED AIR FLOTATION (DAF) technology used in these plants does not require any filters or membranes, making the plants particularly low-maintenance and reliable.

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HAMANN INTRODUCES NEW HL-CONT COMPACT 0125 SEWAGE TREATMENT PLANT

We are proud to introduce the brand new HL-CONT Compact 0125 sewage treatment plant! 3.000 litres/day capacity in a super compact and cost optimized package. More information here.

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BRITTANY FERRIES RELIES ON HAMANN FOR NEW “HONFLEUR”

Brittany Ferries relies on HAMANN technology for sewage treatment on board their new LNG-powered “HONFLEUR”, currently nearing completion at Flensburger Schiffbaugesellschaft. Two HL-CONT Plus 40 sewage treatment plants provide a total treatment capacity of 8.000 litres per hour on board the 42.400 gt vessel that can carry 1,680 passengers and has a vehicle capacity of 2.600 lane meters.

To find out more about the new “HONFLEUR” head over to the microsite that Brittany Ferry has created.

Watch Brittany Ferries’ Honfleur LNG delivery and storage animation:

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Watch the video of the launch:

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