Subscribe free to our newsletters via your
  Energy News  




Subscribe free to our newsletters via your




















BIO FUEL
A better way to farm algae
by Staff Writers
Syracuse NY (SPX) Feb 01, 2017


The medium prevents algae from growing on the sides of a container, letting light penetrate to each level of algae. This eliminates the need for constant stirring. When the medium is converted back to a solution, algae can be more easily separated out and removed from the container.

Scientists have long known of the potential of microalgae to aid in the production of biofuels and other valuable chemicals. However, the difficulty and significant cost of growing microalgae have in some ways stalled further development of this promising technology. Bendy Estime, a biomedical and chemical engineering Ph.D. candidate, has devoted his research to this area, and developed a new technology for energy efficient cultivation and harvesting of microalgae.

Estime's research has been published as a peer-reviewed article in Scientific Reports on Jan. 19. He and his research advisors, Distinguished Professor Radhakrishna Sureshkumar, chair of the Department of Biomedical and Chemical Engineering, and Professor Dacheng Ren, have secured a provisional patent for the technology.

"My goal was to improve the growth of microalgae," says Estime, who first studied biofuels as an engineering student in his native Haiti.

"The study is an attempt to address three 'bottlenecks' in microalgae cultivation," says Sureshkumar.

"When you grow algae in suspension, they tend to stick to the walls of a container, making the container opaque. This makes it more difficult for required light to get through to the algae. The second issue is that there has to be consistent stirring of the container to ensure that light does reach all layers of the algae. A third issue is the difficulty of separating algae from the broth, which requires time and energy, and is therefore costly."

Estime developed a new medium to culture and harvest microalgae. The medium, Tris-Acetate-Phosphate-Pluronic or TAPP, can transition from solution to a gel through relatively small variations in temperature. Microalgae are seeded in the medium at 15 degrees celsius. When the temperature is increased by seven degrees, the medium becomes gelatinous.

In this new medium, microalgae grow in clusters that are up to 10 times larger than those grown in the traditional medium. Once they are grown, the temperature is decreased, and the medium is returned to a solution. The algae is separated out through gravity, and can then be harvested.

The medium prevents algae from growing on the sides of a container, letting light penetrate to each level of algae. This eliminates the need for constant stirring. When the medium is converted back to a solution, algae can be more easily separated out and removed from the container.

"The industrial applications of this system are appealing," Estime says. "This system would harvest microalgae 10 times faster than traditional systems and in an energy- efficient fashion."

"This study presents a novel method to harvest algae and other cells with low cost, which has potential applications in multiple fields," says Ren, professor of biomedical and chemical engineering. "It makes it more realistic for researchers to pursue microalgae as a solution."

Research paper


Comment on this article using your Disqus, Facebook, Google or Twitter login.

.


Related Links
Syracuse University
Bio Fuel Technology and Application News






Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Previous Report
BIO FUEL
Cathay Pacific to cut emissions with switch to biofuel
Hong Kong (AFP) Jan 31, 2017
Hong Kong flag carrier Cathay Pacific will switch to biofuels made from landfill rubbish on select long haul flights, reports said Tuesday, in an effort to cut harmful emissions. Cathay flights to Hong Kong from the US, where the new fuel is produced, will use a combination of conventional jet fuel and biofuels starting in 2019, the South China Morning Post reported. The airline hopes to ... read more


BIO FUEL
Eltek to provide solar energy for hospitals in Zimbabwe under UNDP programme

Saudi Arabia takes low-carbon energy approach

NRDC: States should lead low-carbon economy

Storing solar power increases energy consumption and emissions

BIO FUEL
Russia could move quicker on oil production declines

Early rally in oil fizzles on Libyan rebound

Average U.S. gas prices decline for 21 consecutive days

Kuwaitis seek roots in upmarket tents under the stars

BIO FUEL
Prysmian UK to supply land cable connections for East Anglia ONE offshore wind farm

Russia's nuclear giant pushes into wind energy

The power of wind energy and how to use it

Largest US offshore wind farm gets green light

BIO FUEL
GM, Honda annouce fuel cell venture in Michigan

Researchers flip script for Li-Ion electrolytes to simulate better batteries

Former OPEC member Indonesia makes geothermal move

UNIST researchers get green light to commercialize metal-air batteries

BIO FUEL
Toshiba to stop building new nuclear plants: report

International partnerships vital for UK nuclear energy

Canada uranium supplier, Fukushima operator in contract fight

Russia 'ready' to entirely fund Hungary nuclear plant

BIO FUEL
Chinese, Mexican automakers team up to make SUVs

Daimler to supply self-driving cars for Uber

Dieselgate drags on for VW and Bosch with new payouts

German prosecutors say probing former VW CEO for fraud

BIO FUEL
Italy's military 'narcos' cook up cannabis cures

Corn turning French hamsters into deranged cannibals: research

Crop achilles' heel costs farmers 10 percent of potential yield

Pigs and chocolate: Using math to solve problems in farming

BIO FUEL
New white paper reviews latest support for Redefinition of the Kilogram by 2018

A new approach to 3-D holographic displays greatly improves the image quality

UCLA physicists map the atomic structure of an alloy

Facebook's Oculus ordered pay $500 mn in suit on stolen tech




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News








The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement