Navigation Links
Tips from the journals of the American Society for Microbiology
Date:12/15/2011

Microbiol. 77:8568-8572.)


Bacterial Filters Reduce Stink from Big Pig Factories

Concentrated animal feeding operations (CAFOs) on industrial animal factories can stink up an entire county, due to ammonia, and a smorgasbord of volatile organic compounds (VOCs). Jeppe Lund Nielsen of Aalborg University, Aalborg, Denmark, et al. report that biofiltration with microbial filters can remove most of the butyric acid, dimethyl disulfide, and ammonia from the exhaust air, along with other smelly compounds. The research is published in the December 2011 issue of the journal Applied and Environmental Microbiology.

The investigators mounted trickle biofilters directly on livestock facilities. These filters are stuffed with porous corrugated cellulose pads that serve the bacteria as soil does plants, and irrigated with water to support the active biofilm and wash away toxic waste.

"We hypothesized that the bacteria in these air filters would be highly specialized, with individual microbes targeting specific organic compounds in the smell, which consists of 200-300 compounds in total," says Nielsen. The study's main aim was to identify microorganisms involved in breaking down butyric acid and dimethyl disulfide, as well as to measure their performance. The filters removed 99.9 percent, 94 percent, and 90 percent of the butyric acid, dimethyl disulfide, and ammonia in the exhaust air, respectively, as well as reducing carboxylic acid concentrations by more than 70 percent, organic sulfur compounds by up to 50 percent, and various aromatic compounds by anywhere from 48 to 89 percent. The main community members breaking down dimethyl disulfide were Actinobacteria, followed by the betaproteobacterial ammonia-oxidizing bacteria, and bacteroidetes, as well as some fungi.

Nielsen adds that humans can smell some of these compounds at concentrations of less than a part per billion, and thus, that "only very specializ
'/>"/>

Contact: Jim Sliwa
jsliwa@asmusa.org
202-942-9297
American Society for Microbiology
Source:Eurekalert

Page: 1 2 3 4 5 6

Related biology news :

1. Data publishing in Pensoft journals integrated with the Dryad Data Repository
2. Revolutionary changes to the Botanical Code published in 16 journals and 5 languages
3. Wiley-Blackwell announces continued growth in impact factor journals
4. New 2010 impact factors -- Cell Press journals deliver top class performances
5. Tips from the journals of the American Society for Microbiology
6. ASPB journals migrate to new Web platform
7. Selected journals in Springers Chinese Library of Science join SpringerOpen
8. Tips from the journals of the American Society for Microbiology
9. APS to adopt Creative Commons licensing, publish open access articles and journals
10. American Physical Society online journals available free in US high schools
11. Springer to publish journals of the Australasian Plant Pathology Society
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... , Jan. 13, 2015 Technology Showcase, Hall E ... identity authentication solutions, today announced it will showcase its EyeLock ... developed by the Department of Energy,s Oak Ridge National ... Auto Show . EyeLock,s iris identity authentication technology is being ...
(Date:1/22/2015)... , Jan. 16, 2015  A man-made form of insulin ... other mental capabilities in adults with mild cognitive impairment ... led by researchers at Wake Forest Baptist Medical Center. ... with amnesic mild cognitive impairment (MCI) or mild to ...
(Date:1/22/2015)... POINT ROBERTS, Washington , January 20, 2015 ... including technology and tech stocks, releases video from the CES ... and security consultant Apollo Robbins . Apollo ... the Wocket™ biometric smart wallet, a product of NXT-ID, Inc. ...
Breaking Biology News(10 mins):EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3
... heredity is revealing, and two scientists who,ve studied the ... what,s most revealing to them is how fast both ... research assistant professor of biological sciences at the University ... and conservation biologist at the Chicago Zoological Society, compared ...
... 19 October 2007: Scientists have found that a large ... pre-disposition to the disease. The disease is the most ... common cause of admission to hospital in the first year ... 1,000 babies are admitted to hospital for bronchiolitis - needing ...
... to track one,s DNA to a specific country, region ... But while the popularity of genetic ancestry testing is ... is flawed and could spawn unwelcome societal consequences, according ... of California, Berkeley. "Because race has such profound ...
Cached Biology News:Mice roar message: genetic change happens fast 2Scientists find predisposition to bronchiolitis in some babies 2Genetic ancestral testing cannot deliver on its promise, study warns 2Genetic ancestral testing cannot deliver on its promise, study warns 3Genetic ancestral testing cannot deliver on its promise, study warns 4
(Date:1/22/2015)... 22 de enero de 2015  El Dr. Paul ... llamada a nominaciones para 2015. Este prestigioso premio reconoce ... tiene el potencial para hacer, contribuciones destacadas para la ... hasta el 15 de marzo de 2015 a través ...
(Date:1/22/2015)... 22, 2015   GenoSpace , a precision medicine software company ... the broad use of genomic, imaging and other biomedical data ... Michelle Munson , CEO of Aspera, an IBM Company, ... - http://photos.prnewswire.com/prnh/20150122/170713 "We are pleased ...
(Date:12/24/2014)... 2014  United Therapeutics Corporation (NASDAQ: UTHR ) ... ) has submitted a pre-market approval application to the ... of Medtronic,s SynchroMed ® II implantable drug infusion ... United Therapeutics, Remodulin ® (treprostinil) Injection delivered intravenously ...
(Date:12/24/2014)... , Dec. 24, 2014   BioLife Solutions , Inc. (NASDAQ: ... of proprietary clinical grade hypothermic storage and ... for cells and tissues  ("BioLife" or the "Company"), today ... Stockholders on May 4, 2015 (the "Annual Meeting"). ...
Breaking Biology Technology:El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4GenoSpace Expands Board with Appointment of Michelle Munson 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4BioLife Solutions Sets Date for Annual Meeting of Stockholders 2
... 10 Essilor,of America, Essilor International,s US subsidiary, ... States with the acquisition,of Interstate Optical Co., one ... laboratories in Mansfield, Ohio and,Indianapolis, Indiana serve eye ... sales of US$26 million and 210 employees., ...
... 9 Hagens Berman Sobol Shapiro LLP,( ... business practices of CellCyte (OTC Bulletin Board: ... The investigation comes after CellCyte,s shares plunged ... in CellCyte CEO Gary,Reys, educational and professional ...
... Omeros Corporation announced today that,it has filed a ... the proposed initial public offering of shares of,its common ... sold in the offering,will be offered by Omeros. Deutsche ... manager. Pacific Growth Equities, LLC will be acting,as the ...
Cached Biology Technology:Hagens Berman Sobol Shapiro Investigating CellCyte 2Omeros Corporation Files Registration Statement for Proposed Initial Public Offering 2
... Imaging System, Professional Package Superior Protein ... Range: The ProXPRESS 2D Proteomic Imaging System ... for both proteomic and general life science ... enabling the use of all dyes in ...
... spatulas have been designed to save time ... those interested in eliminating the recycling and ... is individually packaged, RNase/DNase free, non-pyrogenic and ... new product number, created to easily match ...
... three-way universal digital valve, just 8 mm in ... functional features in a single glass-reinforced, PBT (Polybutylene ... 8mm in width. , Meets a range of ... psi. , Satisfies a 0.016 sccm leakage specification ...
... versatile system that simultaneously harvests and washes ... into a solid filter supports for analysis ... counter. The FilterMate is ideal for the ... cell proliferation, receptor binding, nucleic acid degradation, ...
Biology Products: