01-12-2014 Research findings BlueRevolution on urban scale

At a global scale, it is known that the BlueRevolution has a huge potential. On a much smaller scale however, the urban scale, little was known. A recent study in the Rotterdam City Region has shown that there is also a great potential on the urban scale.

The study examined the following research questions:

  • What is the urban metabolism of delta city Rotterdam for nutrients, CO2 and water?
  • How can floating developments in Rotterdam (including algae, aquaculture and urbanization) contribute to closing resource cycles and realizing a circular economy in the city?


The research demonstrated that quaponic systems are very effective in producing food and biofuel within a closed cycle. An aquaponic system combines two other food production systems, namely aquaculture (raising fish) and hydroponics (cultivating plants). In the combined aquaponic system the excretions from the fish are broken down by bacteria into nutrients that can be used to feed the plants. This way the cycle is closed.


Figure 1: aquaponic cycle


According to the research implementing the BlueRevolution in the city of Rotterdam could provide 66% of the current vegetable consumption and 63% of the average protein consumption. Moreover, 32% of the passenger car transportation could be supplied with biofuel. Extra nutrients and CO2 that are needed for aquaponics can be retrieved from municipal wastewater and industrial processes in the Rotterdam City Region. Doing so contributes to making Rotterdam a climate resilient delta city.

The amount of water surface that is needed to implement the BlueRevolution in Rotterdam amounts to 75 km2. By combining food and energy production with floating urbanization in the form of working and living the city of Rotterdam is able to expand in the future and at the same time it can contribute to a sustainable climate.


Figure 2: Impact of the BlueRevolution in Rotterdam


08-07-2013 Flood proofing critical infrastructure of Dordrecht

A case study on the critical infrastructure of Dordrecht has been carried out by students Tom den Ouden and Bob Souwer from the Rotterdam University of Applied Sciences. The objective was to look for quick-wins in flood proofing hotspot buildings within a critical infrastructure...[more]


24-06-2013 Connecting to the Floating Future

The Community of Practice Floating Construction (CoP) organized 'Connecting to the Floating Future', the 20th of june. The next step in collecting, sharing and building knowledge in the field of floating construction.[more]



27-03-2013 Newsletter

The latest DeltaSync newsletter is released.[more]


25-01-2013 BBC: Should we build new cities at sea?

BBC News interview with Bart Roeffen from DeltaSync at the Floating Pavilion in Rotterdam and the floating homes in Delft.

Link to BBC News[more]


23-12-2012 Seasons greetings

Our best wishes for a white Christmas and a bright New Year on a Blue Planet

[more]


19-11-2012 Public lecture: Blue Revolution

'About 70% of the earth surface is still used inefficiently. While on the land a transition has been made to organized agriculture, on the water we are still basically hunters and gatherers', according to Rutger de Graaf, lector Adaptive construction at the knowledge centre...[more]


26-10-2012 First watervillas launched in the Harnaschpolder of Delft

With great public attention and in the presence of Delft council member Stephan Brandligt (sustainable development), the first two floating foundations were launched. An exciting moment, because even for the builders it is not an ordinary job. Floating buildings are still a...[more]


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