Navigation Links
New technology could capture ammonia from liquid manure
Date:8/11/2011

d other additives, lack of ammonia recovery for beneficial uses, and the complex operation and management of some of the technologies have restricted their extensive use in animal agriculture," he said.

In comparison, the membrane technology Mukhtar and his associates have been testing is relatively simple.

Gas-permeable tubing is submersed in a tank of liquid manure. A very dilute solution of sulfuric acid is pumped through the tubing, which has a porosity of only 2 microns. To put this in perspective, a typical human hair is 70 microns in diameter.

The method takes advantage of a property of dissolved gases described by Fick's first law of diffusion. A high concentration of a dissolved gas, such as ammonia, will migrate to regions of lower concentration. As the concentration of ammonium is high in the liquid manure and low to zero in the permeable tubing, the ammonium is drawn into the tubing and out of the liquid manure.

Also, the migration is enhanced by ammonium being a base and chemically attracted to the acid in the tubing.

The name of the tubular membrane they used is "expanded polytetrafluoroethylene, which is usually abbreviated ePTFE," Mukhtar said.

The product has several uses including blood filtration and synthetic blood vessel and even dental floss, he said, and once was prohibitively expensive. But with the expiration of several patents for this material and its uses, the cost has dropped dramatically, allowing its use for other applications.

Mukhtar said the next step is to scale up from the small bench model to a large tank, perhaps 100 gallons, he said. The team also wants to experiment with how little tubing can be used, and how dilute the acid solution can be, while still capturing about 50 percent of the ammonium within a reasonable amount of time.

They are also looking ahead to learn how to economically scale up the process for use on the farm.

"Obviously, we can'
'/>"/>

Contact: Robert Burns
rd-burns@tamu.edu
903-834-6191
Texas A&M AgriLife Communications
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Singapore Technology Incubator Receives Investment from Silicon Valley "Super-Angel"
2. UMD brain cap technology turns thought into motion
3. Nanotechnology for water filter
4. EdeniQ and IKA® Works Announce Global Partnership for Biomass Milling Technology
5. Neurotechnology Introduces VeriSpeak Voice Identification Technology
6. New laser technology could kill viruses and improve DVDs
7. New UGA technology makes textiles permanently germ-free; targets health care-associated infections
8. UBC megapixel DNA replication technology promises faster, more precise diagnostics
9. Karlsruhe Institute of Technology: Nature uses screws and nuts
10. Innovative vaccines with nanotechnology
11. Renaissance of 200-year old technology could ease 21st century sustainability challenges
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/24/2014)... -- Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) (the "Company") announced the ... Phase 3 study of Zerenex (ferric citrate), the Company,s ... of hyperphosphatemia in patients with end-stage renal disease (ESRD) ... delivery with FErric CiTrate in EsrD) was published online ... of Nephrology ( JASN ). , ...
(Date:7/24/2014)... of native animal species for food or commercial food ... factor in the decline of many species of primates ... that more than half of the species being consumed ... "By surveying not only the meat made available for ... the forest by hunters and brought to villages for ...
(Date:7/24/2014)... new study has identified two factors that characterize ... the production of highly qualified physics teachers. Specifically, ... champion physics teacher education in combination with institutional ... remain viable. Science, Technology, Engineering and Math (STEM) ... the study points the way for institutions seeking ...
Breaking Biology News(10 mins):Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex™ (ferric citrate) long-term Phase 3 study results published in JASN 4Creating sustainable STEM teacher preparation programs 2
... Researchers at the Genome Institute of Singapore (GIS) have, ... that comes with a guarantee on its reliability when ... more streamlined process for reconstructing and studying genomic sequences. ... Director of Computational and Mathematical Biology at the GIS, ...
... be used to evaluate the effect of Best Available Techniques ... the air and soil. The initiative is co-funded by the ... The mobile laboratory is equipped with diverse equipment to take ... will be used to monitor in situ gas emissions. The ...
... Liu Jianjun, Senior Group Leader and Associate Director of ... and Dr Gu Jieruo, a rheumatologist at the 3rd ... new genes that are associated with the spine disease ... online issue of Nature Genetics on 4 ...
Cached Biology News:Researchers at GIS develop systematic approach for accurate DNA sequence reconstruction 2Neiker-Tecnalia sets up a mobile laboratory to reduce the environmental impact of farms 2Singapore and China scientists perform first Asian genome-wide association study on spine disease 2
(Date:7/25/2014)... 2014  Galmed Pharmaceuticals Ltd. (Nasdaq: GLMD ... development and commercialization of a once-daily, oral therapy for ... announced financial results for the period ended June 30, ... , Reported cash and cash equivalents totaling $37.4 million ... 31, 2013.  , Reported a net loss of ...
(Date:7/24/2014)... - July 24, 2014 -- Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) ... long-term, randomized, active control Phase 3 study of Zerenex ... binder, for the treatment of hyperphosphatemia in patients with ... (PhosphatE binding and iRon delivery with FErric CiTrate in ... of the American Society of Nephrology ( JASN ...
(Date:7/24/2014)... July 24, 2014  Asterias Biotherapeutics, Inc. (OTCBB: ... field of regenerative medicine, announced today that it ... to investors on Tuesday, July 29, 2014, at ... will include an overview of Asterias, business strategy ... visit http://www.ustream.tv/channel/asterias-biotherapeutics at least 15 minutes ...
(Date:7/24/2014)... yet to materialise. Yet, scientists are making progress ... faster. One such approach relies on quantum dotsa ... an electric field. A new study demonstrates that ... dots (TQDs) with electrical impulses can help better ... TQDs be used as quantum information units, which ...
Breaking Biology Technology:Galmed Pharmaceuticals Reports First Half 2014 Financial Results 2Galmed Pharmaceuticals Reports First Half 2014 Financial Results 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 4Galmed Pharmaceuticals Reports First Half 2014 Financial Results 5Galmed Pharmaceuticals Reports First Half 2014 Financial Results 6Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 4Asterias Biotherapeutics Announces Live Investor Webcast 2Asterias Biotherapeutics Announces Live Investor Webcast 3Asterias Biotherapeutics Announces Live Investor Webcast 4
... anthrax that is more effective and easier to administer than ... mice and guinea pigs, report University of Michigan Medical School ... , The scientists were able to trigger a strong immune ... a nanoemulsion a suspension of water, soybean oil, alcohol ...
... engineers assemble spacecraft, have joined hot springs, ice ... scientists have discovered ultra-hardy organisms collectively known as ... recent NASA study have never been detected anywhere ... led the study conducted at NASAs Jet Propulsion ...
... method for culturing mammalian neurons in chambers not much larger ... of the neurons at very low densities, an essential step ... of individual brain cells. , The technique is described this ... Lab on a Chip. , This finding will be ...
Cached Biology Technology:Anthrax vaccine produces immunity with nanoparticles, not needles 2Anthrax vaccine produces immunity with nanoparticles, not needles 3NASA study will help stop stowaways to Mars 2Microfluidic chambers advance the science of growing neurons 2Microfluidic chambers advance the science of growing neurons 3
... to Dideoxycytidine Dideoxycytidine is a cytidine analog ... inhibiting retroviral activity. Immunogen: Chemical ... Specificity: The specificity of the ddC antiserum ... moles of ddC to moles of ddC analog ...
... MSC series of Class II Biological ... and certification to the world's highest ... that the cabinets cannot be adjusted ... lighting, low noise and arm rest ...
... is designed with a variety of motion ... all in one unit. Shake, rock, roll ... compartments allow for hybridization and blotting procedures ... , The upper chamber uses a roller ...
... Concentrator, the SPD series takes the 'Classic' ... twist., The SPD121P SpeedVac comes equipped with ... runs; preventing samples from freezing; and allowing ... end-users preset level., Standard features on the ...
Biology Products: