Navigation Links
Fowl soil additive breaks down crude oil

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
Inderscience Publishers

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:
(Date:10/27/2015)... -- In the present market scenario, security is one ... verticals such as banking, healthcare, defense, electronic gadgets, and ... secure & simplified access control and growing rate of ... bank accounts, misuse of users, , and so on. ... and smartphones are expected to provide potential opportunities for ...
(Date:10/27/2015)... JOSE, Calif. , Oct. 27, 2015 Synaptics ... interface solutions, today announced that Google has adopted the ... of touch controller solutions to power its newest flagship ... 6P by Huawei. --> ... partners like Google to provide strategic collaboration in the ...
(Date:10/26/2015)... and LAS VEGAS , Oct. 26, ... , an innovator in modern authentication and a founding ... the launch of its latest version of the Nok ... organizations to use standards-based authentication that supports existing and ... Authentication Suite is ideal for organizations deploying customer-facing applications ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... Nov. 25, 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ: ... business and prospects remain fundamentally strong and highlights ... doxorubicin) recently received DSMB recommendation to continue the ... review of the final interim efficacy and safety ... Endpoint in men with heavily pretreated castration- and ...
(Date:11/25/2015)... -- Orexigen® Therapeutics, Inc. (Nasdaq: OREX ) today ... discussion at the Piper Jaffray 27th Annual Healthcare Conference ... is scheduled for Wednesday, December 2, at 8:00 a.m. ... will be available for 14 days after the event.  ... Corporate Communications and Business Development , BrewLife(858) 875-8629 ...
(Date:11/25/2015)... Francisco, CA (PRWEB) , ... November 25, 2015 ... ... microbial genomics company uBiome, were featured on AngelList early in their initial angel ... launching an AngelList syndicate for individuals looking to make early stage investments in ...
(Date:11/24/2015)... ... November 24, 2015 , ... The United States Golf ... the 2016 USGA Green Section Award. Presented annually since 1961, the USGA Green Section ... her work with turfgrass. , Clarke, of Iselin, N.J., is an extension ...
Breaking Biology Technology: