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Recent News and Articles on the Keywords: methane + microbes + fuel  Related to the article below (Last Update: 7/1/2008)

Mark O'Connor: NZ's climate fight on wrong tack
New Zealand Herald, New Zealand - Jun 26, 2008
Ground-breaking work is being done by Kiwi scientists, such as the recent mapping of the entire genetic sequence of a microbe which produces methane from ...
Harnessing Microbes To Meet Our Future Energy Needs
Science Daily (press release) - Jun 3, 2008
However, plants are quite inefficient at capturing sunlight energy and turning it into biomass that can be used a fuel," Rittmann explains. ...
Feeding it Back
Biomass Magazine, ND - Jun 17, 2008
AD employs microbes in an oxygen-free environment to break down organic waste into biogas. The biogas, composed of methane and carbon dioxide, ...

Carbon News
Raw landfill gas to be cleaned for use as cheap vehicle fleet fuel
Carbon News, New Zealand - Jun 10, 2008
A project of FirmGreen will clean raw landfill gas and produce compressed natural gas for use in fleet vehicles owned by the Solid Waste Authority of ...
Source: Google News

Archaeal lipid biomarkers and isotopic evidence of anaerobic methane oxidation associated with gas … -
CL Zhang, RD Pancost, R Sassen, Y Qian, SA Macko - Organic Geochemistry, 2003 - Elsevier
... derived from methane-oxidizing microbes at Hydrate Ridge, Cascadia Convergent Margin.
In: Paull, CK and Dillon, WP, Editors, 2001. Natural Gas Hydrates ...

Microbiology: Resolving a methane mystery -
EF DeLong, P Chandler - Nature Biotechnology, 2002 - nature.com
... in sub-seafloor reservoirs of frozen methane hydrates 1 ... The answer, in part, is that
microbes already have ... generated power by constructing a fuel cell that can ...

Anaerobic oxidation of methane above gas hydrates (Hydrate Ridge, NE Pacific) -
T Treude, A Boetius, K Knittel, K Wallmann, BB … - Anaerobic oxidation of methane in marine sediments, 2003 - elib.suub.uni-bremen.de
... heterogeneity of surface sediments at HR causing high deviations in AOM and SR
replicates Acharax field There is not enough methane supply to fuel a dense AOM ...

… Ridge: a natural laboratory for the study of microbial life fueled by methane from near-surface gas … -
A Boetius, E Suess - Chemical Geology, 2004 - Elsevier
... Gas bubble ebullition from depressurized sediments can cause a ... to identify hot spots
of methane turnover, sulfide ... as well as the key microbes involved in these ...

[CITATION] A phylogenetic analysis of microbial communities associated with methane hydrate containing marine … -
KA Bidle, M Kastner, DH Bartlett - FEMS Microbiology Letters, 1999 - Blackwell Synergy
... available on the microbial ecology of gas hydrate regions suggests that microbes
associated with C ... isotope ratios indicate that the methane in most gas ...

Sustained degradation of n-pentane and isobutane in a gas-phase bioreactor -
BH Davison, JE Thompson - Biotechnology Letters, 1993 - Springer
... and methane in air was used. After an initial startup of a month. the pentane and
isobutane were the only carbon sources provided to the microbes. The gas ...

Life at the edge of methane ice: microbial cycling of carbon and sulfur in Gulf of Mexico gas … -
BN Orcutt, A Boetius, SK Lugo, IR MacDonald, VA … - Chemical Geology, 2004 - Elsevier
... This methane, if bioavailable, provides a powerful fuel for microbes and the
availability of dissolved methane, oxidant and nutrients is likely higher at the ...

BIOGEOCHEMISTRY:'Inconceivable'Bugs Eat Methane on the Ocean Floor -
C Zimmer - Science, 2001 - sciencemag.org
... and fossil fuel burning. But on early Earth, these microbes might have been even
more significant. Atmospheric scientists have suggested that methane levels in ...

Natural seabed gas seeps as sources of atmospheric methane -
AG Judd - Environmental Geology, 2004 - Springer
... seeps are often present even within the gas hydrate stability ... Methane generated in,
or migrating to the seabed sedi- ments may be utilised by microbes as a ...

[PDF] Methane Digesters for Fuel Gas and Fertilizer -
LJ Fry - New Alchemy Institute. Woods Hole, Massachussets, USA, 1976 - backyardaquaponics.com
... day's load which bacteria and other microbes have already ... of the digester to a point
where the methane bacteria are ... way to the surface where the gas accumulates ...

Source: Google Scholar

Methane from microbes: a fuel for the future

Microbes could provide a clean, renewable energy source and use up carbon dioxide in the process, suggested Dr James Chong at a Science Media Centre press briefing today.

“Methanogens are microbes called archaea that are similar to bacteria. They are responsible for the vast majority of methane produced on earth by living things” says Dr Chong from York University. “They use carbon dioxide to make methane, the major flammable component of natural gas. So methanogens could be used to make a renewable, carbon neutral gas substitute.”

Methanogens produce about one billion tonnes of methane every year. They thrive in oxygen-free environments like the guts of cows and sheep, humans and even termites. They live in swamps, bogs and lakes. “Increased human activity causes methane emissions to rise because methanogens grow well in rice paddies, sewage processing plants and landfill sites, which are all made by humans.”

Methanogens could feed on waste from farms, food and even our homes to make biogas. This is done in Europe, but very little in the UK. The government is now looking at microbes as a source of fuel and as a way to tackle food waste in particular.

Methane is a greenhouse gas that is 23 times more effective at trapping heat than carbon dioxide. “By using methane produced by bacteria as a fuel source, we can reduce the amount released into the atmosphere and use up some carbon dioxide in the process!”

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Food source threatened by carbon dioxide

Carbon dioxide increasing in the atmosphere may affect the microbial life in the sea, which could have an impact on a major food source, warned Dr Ian Joint at a Science Media Centre press briefing today.

Dr Joint is sequencing the DNA of different ocean bacteria to find out how they will respond to an increase in carbon dioxide. “So far from one experiment we have sequenced 300 million bases of DNA, about one tenth the size of the human genome. We are analyzing this ‘ocean genome’ to see if changes might affect the productivity of the sea.”

Worldwide, fish from the sea provide nearly a fifth of the animal protein eaten by man. If microscopic plants that fish eat are affected by carbon dioxide, this may deplete a major food source.

“Bacteria still control the world” said Dr Joint from Plymouth Marine Laboratory. “They ensure that the planet is fertile and that toxic materials do not accumulate.” The carbon dioxide produced by humans is turning the oceans into weak acids. This century, the seas will be more acidic than they have been for 20 million years.

“There are many millions of different bacteria in the ocean. They control the cycling of oxygen, carbon, nitrogen and sulphur; microbes in the sea generate half of the oxygen produced globally every year.” So the atmosphere could also be affected by ocean acidification. “Bacteria made the earth suitable for animals by producing oxygen nearly 2 billion years ago. We want to find out if human activities will have a major impact on microbial life in the seas and if this is likely to be a problem for mankind in the future”

 

 

 

 

 

 
 
 
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