Forum for Science, Industry and Business
Sponsored by:     Siemens  n-tv 
Search our Site:

Topic (optional):

 

Home Reports Life Sciences Content

Coal-eating bacteria may improve methane recovery

next article
12.09.2003

 


Scientists at the U.S Department of Energy’s Brookhaven National Laboratory are exploring the use of bacteria to increase the recovery of methane, a clean natural gas, from coal beds, and to decontaminate water produced during the methane-recovery process.


Methane gas, which burns without releasing sulfur contaminants, is becoming increasingly important as a natural gas fuel in the U.S. But the process of recovering methane, which is often trapped within porous, unrecovered or waste coal, produces large amounts of water contaminated with salts, organic compounds, metals, and naturally occurring radioactive elements. "Our idea is to use specially developed bacteria to remove the contaminants from the wastewater, and also help to release the trapped methane," says Brookhaven chemist Mow Lin.

Lin’s team has developed several strains of bacteria that can use coal as a nutrient and adsorb or degrade contaminants. They started with natural strains already adapted to extreme conditions, such as the presence of metals or high salinity, then gradually altered the nutrient mix and contaminant levels and selected the most hardy bugs (for more, see: http://www.bnl.gov/bnlweb/pubaf/pr/2001/bnlpr121101.htm).

In laboratory tests, various strains of these microbes have been shown to absorb contaminant metals, degrade dissolved organics, and break down coal in a way that would release trapped methane. The use of such microbe mixtures in the field could greatly improve the efficiency and lower the associated clean-up costs of coal-bed methane recovery, Lin says.

To learn more about this work, see the talk given by Lin during the Division of Fuel Chemistry’s "Synthetic Clean Fuels from Natural Gas and Coalbed Methane: 30 Years Progress Since the First Oil Crisis" session on Thursday, September 11, 2003, at 3:30 p.m. at the Jacob Javits Convention Center, Room 1A13. This research was funded by grants for high-school and undergraduate student research at Brookhaven Lab from Brookhaven Science Associates and DOE’s Office of Science.

Karen McNulty Walsh | Source: EurekAlert!
Further information: www.bnl.gov/
www.bnl.gov/bnlweb/pubaf/pr/2001/bnlpr121101.htm

next article

More articles from Life Sciences:

nachricht Genome sequence for the domestic horse to be unveiled
06.11.2009 | University of California - Davis

nachricht Common plants can eliminate indoor air pollutants
06.11.2009 | American Society for Horticultural Science

All articles from Life Sciences >>>

B2B Search

Product / Service
Company / Organisation

Latest News

Airborne nitrogen shifts aquatic nutrient limitation in pristine lakes

06.11.2009 | Studies and Analyses

Genome sequence for the domestic horse to be unveiled

06.11.2009 | Life Sciences

New Study in Geology Uses Satellite Imagery to Identify Active Magma Systems in East Africa’s Rift Valley

06.11.2009 | Earth Sciences

VideoLinks

Event News

Texas Tech University Hosts Major Textile Conference in India

06.11.2009 | Event News

Brief Highlights of the Fluid Dynamics Conference, Minneapolis

30.10.2009 | Event News

EUROSAFE Forum 2009 Brussels: "Safety Implications of an Increased Demand for Nuclear Energy"

29.10.2009 | Event News