Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Microalgae could be a profitable source of biodiesel

22.03.2013
Researchers at the UAB's Institute of Environmental Science and Technology (ICTA-UAB) and the Institute of Marine Sciences (ICM-CSIC), have analysed the potential of different species of microalgae for producing biodiesel, comparing their growth, production of biomass and the quantity of lipids per cell (essential for obtaining fuel).

Their study shows that one type of marine algae that has received little attention till now - dinoflagellate microalgae - is highly suitable for cultivation with the aim of producing biodiesel.

The scientists carried out the whole production process in exterior cultures, in natural conditions, without artificial light or temperature control, in cultivation conditions with low energy costs and subject to seasonal fluctuations. Detailed analysis of all costs over 4 years gives promising results: microalgae cultures are close to producing biodiesel profitably even in uncontrolled environmental conditions.

"If we make simple adjustments to completely optimise the process, biodiesel obtained by cultivating these marine microalgae could be an option for energy supplies to towns near the sea", points out Sergio Rossi, an ICTA researcher at the UAB.

Among these adjustments, scientists highlight the possibility of reusing leftover organic pulp (the glycerol and protein pulp that is not converted into biodiesel) and using air pumps and more efficient cultivation materials.

Though similar studies have been done on other alga species, dinoflagellate microalgae have shown themselves to be a very promising group that stands out from the rest. Moreover, these microalgae are autochthonous to the Mediterranean, so they would present no environmental threat in the event of leakage.

Third-generation biodiesel

First-generation biodiesel and bioethanol (obtained from monoculture of palm oil, sugar cane, maize, etc.) have presented problems that make them less attractive. The crops cover large areas of land and need huge amounts of fresh water, and their use implies diverting food products to the energy market.

The possibility of creating energy from hydrocarbons extracted from organisms like marine phytoplankton, the so-called third-generation biodiesel, has several advantages. Firstly, algae offer the same production levels while taking up only between 4 and 7 per cent of the area occupied by crops on land, thanks to their high concentration of energy per cell. Secondly, they do not need fresh water, as sea water is sufficient, which makes them viable even in deserts or arid areas near the coast. Finally, marine algae are not, a priori, sources of food for human consumption, which avoids the ethical problem of monoculture to provide fuel rather than food.

This study was led by scientists from the UAB's Institute of Environmental Science and Technology and involved researchers from the Department of Marine and Oceanographic Biology of the Institute of Marine Sciences of the CSIC, from the UAB spin-off Inèdit Innovació SL, in the UAB Research Park, and from the SOSTENIPRA research group, of the UAB's Department of Chemical Engineering.

Octavi López Coronado | EurekAlert!
Further information:
http://www.uab.cat

More articles from Power and Electrical Engineering:

nachricht Nano-scale process may speed arrival of cheaper hi-tech products
09.11.2018 | University of Edinburgh

nachricht Nuclear fusion: wrestling with burning questions on the control of 'burning plasmas'
25.10.2018 | Lehigh University

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

The dawn of a new era for genebanks - molecular characterisation of an entire genebank collection

13.11.2018 | Life Sciences

Fish recognize their prey by electric colors

13.11.2018 | Life Sciences

Ultrasound Connects

13.11.2018 | Awards Funding

VideoLinks
Science & Research
Overview of more VideoLinks >>>