Navigation Links
Fowl soil additive breaks down crude oil
Date:3/3/2009

It is an unlikely application, but researchers in China have discovered that chicken manure can be used to biodegrade crude oil in contaminated soil. Writing in the International Journal of Environment and Pollution the team explains how bacteria in chicken manure break down 50% more crude oil than soil lacking the guano.

Bello Yakubu, Huiwen Ma, and ChuYu Zhang of Wuhan University, China, point out that contamination of soil by crude oil occurs around the world because of equipment failure, natural disasters, deliberate acts, and human error. However, conventional approaches to clean-up come with additional environmental costs. Detergents, for instance, become pollutants themselves and can persist in the environment long after any remediation exercise is complete.

A more environmentally benign approach is to bioremediation, which uses natural or engineered microbes that can metabolize the organic components of crude oil. Stimulating such microbial degradation in contaminated soil often involves the use of expensive fertilizers containing nitrogen and phosphorus, and again may come with an additional environmental price tag despite the bio label. Soil hardening and a loss of soil quality often accompany this approach.

Ma and colleagues suggest that animal waste, and in particular chicken manure, may provide the necessary chemical and microbial initiators to trigger biodegradation of crude oil if applied to contaminated soil. One important factor is that chicken manure raises the pH of soil to the range 6.3 to 7.4 which is optimal for the growth of known oil-utilizing bacteria.

In tests, the team added chicken manure to soil contaminated with 10 percent volume to weight of crude to soil. They found that the almost 75% of the oil was broken down in soil with the fowl additive after about two weeks. Whereas additive-free soil was naturally remediated to just over 50%.

The team carried out a microbial analysis of their samples and identified 21 different microbial species known as aerobic heterotrophs. The team explains that Bacillus species and Pseudomonas aeruginosa were the best oil-munching microbes but of the 21 isolates 12 were capable of metabolizing components of crude oil. Other microbes included Proteus, Enterobacter, and Micrococcus species. Bacillus represented the most prevalent species.

"The use of chicken manure to stimulate crude oil biodegradation in the soil could be one of the several sought-after environmentally friendly ways of abating petroleum hydrocarbon pollution in the natural ecosystem," the team concludes.


'/>"/>

Contact: Huiwen Ma
86-755-260-37918
Inderscience Publishers
Source:Eurekalert

Related biology news :

1. Common food additive found to increase risk and speed spread of lung cancer
2. Hidden infections crucial to understanding, controlling disease outbreaks
3. Book breaks new ground in the study of economics and forest threats management
4. Scientists use remote satellite imaging to predict outbreaks of infectious disease
5. Lab study shows methadone breaks resistance in untreatable forms of leukemia
6. Fishing ban guards coral reefs against predatory starfish outbreaks
7. Fungi the cause of many outbreaks of disease but mostly ignored
8. NASA technology helps predict and prevent future pandemic outbreaks
9. NIST chemists get scoop on crude oil from pig manure
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/5/2017)... 5, 2017 Today HYPR Corp. , ... server component of the HYPR platform is officially ... end-to-end security architecture that empowers biometric authentication across Fortune ... already secured over 15 million users across the financial ... connected home product suites and physical access represent a ...
(Date:3/30/2017)... KONG , March 30, 2017 The ... a system for three-dimensional (3D) fingerprint identification by adopting ground breaking ... into a new realm of speed and accuracy for use in ... at an affordable cost. ... ...
(Date:3/24/2017)... , March 24, 2017 The Controller General ... Controller Mr. Abdulla Algeen have received the prestigious international IAIR ... Continue Reading ... ... picture) and Deputy Controller Abdulla Algeen (small picture on the right) have ...
Breaking Biology News(10 mins):
(Date:9/21/2017)... , ... September 21, 2017 , ... ... clinical research sector professionals, has announced the addition of 5 new courses to ... - Compliance with Regulation 21 CFR Part 11 on Electronic Records and ...
(Date:9/21/2017)... New Haven, CT (PRWEB) , ... September 21, ... ... company developing bioresorbable scaffold technology, today announced the election of Paul Hermes, Entrepreneur ... Board of Directors. , Biorez has developed a proprietary, tissue-engineered scaffold for ...
(Date:9/20/2017)... ... September 20, 2017 , ... Diversity focused business accelerator, ... the Growth pitch competition to uncover the top technology-driven, women-led startups in Boston, MA, ... part of each city’s entrepreneurial events going on that week – in Boston, it ...
(Date:9/20/2017)... ... September 20, 2017 , ... ... of a study examining the effects of exoskeleton-assisted walking on gait parameters ... (SCI). The article, "Neuromechanical adaptations during a robotic powered exoskeleton assisted walking ...
Breaking Biology Technology: