نتایج جستجو برای: bioremediation process

تعداد نتایج: 1316529  

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2013
David Leys Lorenz Adrian Hauke Smidt

Bacterial respiration has taken advantage of almost every redox couple present in the environment. The reduction of organohalide compounds to release the reduced halide ion drives energy production in organohalide respiring bacteria. This process is centred around the reductive dehalogenases, an iron-sulfur and corrinoid containing family of enzymes. These enzymes, transcriptional regulators an...

Journal: :Current opinion in biotechnology 2000
G S Sayler S Ripp

Genetically engineered microorganisms (GEMs) have shown potential for bioremediation applications in soil, groundwater, and activated sludge environments, exhibiting enhanced degradative capabilities encompassing a wide range of chemical contaminants. However, the vast majority of studies pertaining to genetically engineered microbial bioremediation are supported by laboratory-based experimenta...

2013

Traditional methods for the disposal of Oil-Based Mud (OBM) drill cuttings have included pit burial or leaving the untreated cuttings scattered in-situ. Increasingly stringent regulations and increased environmental awareness have required new and improved disposal techniques. Scomi Equipment Inc, with over twenty one years Drilling Waste Management experience, has developed a system to remedia...

2015

Some microorganisms are equipped with enzymes that allow them to degrade, and even live on, chemicals that other species find toxic. For example, many bacteria in the genus Rhodococcus are able to break down polychlorinated biphenyl (PCB), an industrial chemical and environmental pollutant linked to cancer in humans. In a process called ‘bioremediation’, humans can use these micro-organisms to ...

Journal: :Biotechnology and bioengineering 2002
Wilfred Chen George Georgiou

A variety of expression systems for the display of either short peptides or fully folded proteins on E.coli and, to a lesser extent, on Gram-positive bacteria have been developed. The expression of proteins on the surface of microbial cells has proved extremely important for numerous applications ranging from combinatorial library screening and protein engineering, to whole cell biocatalysts an...

Journal: :international journal of environmental research 0
s. o. ojoawo ladoke akintola university of technology, nigeria c. v. rao nmam institute of technology, india l. c. goveas nmam institute of technology, india

the study applied an isolated brevibacterium sp. (mtcc 10313) for bioremediation of zn, cu, mg and pb in domestic sewage. batch culture experiments were performed on both the fresh and stale sewage samples with glucose supplementation of 1-8g/l. nutrient broth medium was prepared, sterilized and ph adjusted to 6.5-6.8. 1% of the brevibacteria sp. stock was inoculated into the broth and maintain...

Journal: :Applied and environmental microbiology 2005
Marc Viñas Jordi Sabaté María José Espuny Anna M Solanas

Bacterial community dynamics and biodegradation processes were examined in a highly creosote-contaminated soil undergoing a range of laboratory-based bioremediation treatments. The dynamics of the eubacterial community, the number of heterotrophs and polycyclic aromatic hydrocarbon (PAH) degraders, and the total petroleum hydrocarbon (TPH) and PAH concentrations were monitored during the biorem...

Journal: :Current opinion in biotechnology 1996
T M Vogel

The debate over the efficacy of bioaugmentation rages on, with research continuing to demonstrate that its advantages for soil bioremediation are difficult to predict; however, when it works, the results are often very encouraging. The difficulties arise from, among others, the diversity of the microorganisms used, environmental heterogeneity, and variations in the influence of critical paramet...

2003
Nancy Comstock

All rights reserved. No part of this document may be reproduced, stored in a retrieval system, or transcribed in any form or by any means, electronic or mechanical, including photocopying and recording, without the prior written permission of the publisher. Printed in the United States of America Bioremediation can be a cost-effective technology that is often used to treat oil spills in all typ...

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