Quantcast

Latest Bioremediation Stories

2008-08-09 03:00:24

By Mena-Benitez, Gilda L Gandia-Herrero, Fernando; Graham, Stuart; Larson, Tony R; McQueen-Mason, Simon J; French, Christopher E; Rylott, Elizabeth L; Bruce, Neil C Plants are increasingly being employed to clean up environmental pollutants such as heavy metals; however, a major limitation of phytoremediation is the inability of plants to mineralize most organic pollutants. A key component of organic pollutants is halogenated aliphatic compounds that include 1,2-dichloroethane (1,2- DCA)....

2008-08-05 09:00:58

NEW YORK, Aug. 5 /PRNewswire-FirstCall/ -- Fresh Harvest Products, Inc. (BULLETIN BOARD: FRHV) announced today that Fresh Harvest has executed an agreement to represent and grow a natural and biodegradable branded line of patent pending bioremediation products. The Company will initially offer these products to supermarkets chains, food processing facilities and throughout the hospitality industry, including restaurants, cafeterias and hotels where these types of products have many useful...

2007-10-02 09:00:34

By Low, Adrian Schleheck, David; Khou, Muoi; Aagaard, Vibeke; Et al ABSTRACT Environments contaminated with mixtures of chlorinated hydrocarbons represent a formidable challenge for bioremediation because biodegradation of all components of the mixture must be demonstrated. In this study a soil site contaminated with hexachloro- 1,3-butadiene (HCBD), hexachlorobenzene (HCB), and perchloroethene (PCE) was investigated. Environmental parameters (including toxicity) and microbial community...

2007-10-02 09:00:34

By Wymore, Ryan A Lee, M Hope; Keener, William K; Miller, Amber R; Et al ABSTRACT Idaho National Laboratory's Test Area North is the site of a trichloroethene (TCE) plume resulting from waste injections. Previous investigations revealed that TCE was being attenuated relative to two codisposed internal tracers, tritium and tetrachloroethene, with a half-life of 9 to 21 years. Biological attenuation mechanisms were investigated using a novel suite of assays, including enzyme activity probes...

2007-03-31 03:00:22

By Jacques, Rodrigo J S; Okeke, Benedict C; Bento, Fatima M; Peralba, Maria C R; Camargo, Flvio A O ABSTRACT Anthracene, phenanthrene, and pyrene are polycyclic aromatic hydrocarbon (PAHs) that display both mutagenic and carcinogenic properties. They are recalcitrant to microbial degradation in soil and water due to their complex molecular structure and low solubility in water. This study presents the characterization of an efficient PAH (anthracene, phenanthrene, and pyrene)degrading...

2007-03-31 03:00:20

By Khade, Sharda W; Adholeya, Alok ABSTRACT Bioremediation is an integrated management of a polluted ecosystem where different organisms are employed to catalyze the natural processes that decontaminate the environment. The potential role of bioremediation, particularly higher terrestrial plants (phytoremediation) research in the remediation of metal-polluted sites, has been the focus of much research in recent years. Arbuscular mycorrhizal fungi are soil microorganisms that establish...

2007-02-02 18:00:51

By Sahl, Jason W; Munakata-Marr, Junko; Crimi, Michelle L; Siegrist, Robert L ABSTRACT: For sites contaminated with chloroethene non-aqueous-phase liquids, designing a remediation system that couples in situ chemical oxidation (ISCO) with potassium permanganate (KMnO^sub 4^) and microbial dechlorination may be complicated because of the potentially adverse effects of ISCO on anaerobic bioremediation processes. Therefore, one-dimensional column studies were conducted to understand the...

2007-01-13 03:00:25

By Silva, M L B Da; Daprato, R C; Gomez, D E; Hughes, J B; Et al ABSTRACT:Two 11.7-m^sup 3^ experimental controlled release systems (ECRS), packed with sandy model aquifer material and amended with tetrachloroethene (PCE) dense nonaqueous phase liquid (DNAPL) source zone, were operated in parallel with identical flow regimes and electron donor amendments. Hydrogen Releasing Compound (Regenesis Bioremediation Products, Inc., San Clemente, California), and later dissolved lactate, served as...

2007-01-13 03:00:25

By Evans, Patrick J; Trute, Mary M ABSTRACT: When present in the vadose zone, potentially toxic nitrate and perchlorate anions can be persistent sources of groundwater contamination. Gaseous electron donor injection technology (GEDIT), an anaerobic variation of petroleum hydrocarbon bioventing, involves injecting electron donor gases, such as hydrogen or ethyl acetate, into the vadose zone, to stimulate biodegradation of nitrate and perchlorate. Laboratory microcosm studies demonstrated...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
Related