HOME >> BIOLOGY >> NEWS
Faster coagulation rates found in natural systems could impact industrial processing

Using new ways to analyze and describe the rate at which minute ocean-going groups of bacteria or plankton coagulate, a Penn State engineer has found that large aggregates of these groups collide with and capture additional particles millions of times faster than predicted by existing theories.

Dr. Bruce E. Logan, the Kappe professor of environmental engineering, says, "Our results have caused us and many other scientists and engineers to think completely differently about how biological aggregates form in aqueous systems. Such coagulation processes are important in wastewater treatment and industrial manufacturing as well as the ocean and other natural water systems."

Logan is the first to apply the use of fractal geometry to aqueous biological aggregates. Objects arranged in fractal patterns, a snowflake, for example, often look "lacy" and every unit or fragment of it looks like the whole.

Previous methods for describing and predicting the dimensions of biological aggregates have been based on the analysis of single "ideal" particles such as a sphere. However, Logan points out that most real aggregates of interest form particles that have a variety of sizes and shapes. In order to analyze average properties of real aggregates, Logan and his research group have developed new techniques to estimate fractal dimensions and calculate the collision efficiencies between the fractal aggregate and new adhering particles.

Logan will describe the new techniques and calculations at the national meeting of the American Chemical Society in Washington, D. C. on Sunday, August 20. His keynote lecture is entitled, "Fractal Coagulation Processes.

In his experiments, Logan added fluorescent beads to water already containing bacterial aggregates. The coagulation rate, or the rate at which the beads attached to the bacterial aggregates, was calculated by using a microscope to observe and count them over time. He and his research associat
'"/>

Contact: Barbara Hale
bah@psu.edu
814-865-9481
Penn State
19-Aug-2000


Page: 1 2

Related biology news :

1. Faster carbon turnover in basal food-chain levels in aquatic than terrestrial ecosystems
2. Faster method for growing adult stem cells for bone regeneration developed at Hebrew University
3. Faster nanowires may advance nanotechnological applications for detecting glucose, hormones or DNA
4. Dismantling Dangerous Genetic Codes With A Faster, More Flexible RNA Mimic
5. Scientists Invent Faster Gene Function Identification System
6. Core Spins Faster Than Earth, Scientists Find
7. Intake Of Acetaminophen Increases Risk Of Excessive Anticoagulation In Patients Taking Warfarin
8. ICTP celebrates 40th anniversary, Legacy for the Future
9. New genetic research demonstrates possible cause of inherited form of Parkinsons disease
10. UNC research accelerates discovery of novel gene function
11. Land Regeneration Network celebrates first year success

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/3/2016)... Lithuania , May 3, 2016  Neurotechnology, ... released the MegaMatcher Automated Biometric Identification System ... of large-scale multi-biometric projects. MegaMatcher ABIS can process ... accuracy using any combination of fingerprint, face or ... MegaMatcher SDK and MegaMatcher Accelerator ...
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 ... subsidiary of Infosys (NYSE: INFY ), and Samsung ... global partnership that will provide end customers with a ... and payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ... for financial services, but it also plays a fundamental part ...
(Date:4/28/2016)... 28, 2016 First quarter 2016:   ... compared with the first quarter of 2015 The gross ... M (loss: 18.8) and the operating margin was 40% (-13) ... Cash flow from operations was SEK 249.9 M (21.2) , ... is unchanged, SEK 7,000-8,500 M. The operating margin for ...
Breaking Biology News(10 mins):
(Date:5/4/2016)... York, NY (PRWEB) , ... May 04, 2016 , ... ... (NF), a genetic disorder that causes tumors to grow on nerves throughout the body. ... or cure. , Through numerous community events held during the month of May, as ...
(Date:5/4/2016)... According to a new market ... Global Industry Analysis, Size, Share, Growth, Trends, and Forecast ... expand at a CAGR of 17.1% from 2016 to ... Metabolomics is the extensive study of small molecules, ... organisms. Together, these small molecules and their interactions in ...
(Date:5/4/2016)... ... May 04, 2016 , ... PBI-Gordon Corporation is pleased to announce ... , Doug began his career at PBI-Gordon in February 1988, after finishing his masters ... of roles, ranging from customer service to national product manager, to helping develop, name ...
(Date:5/4/2016)... ... 04, 2016 , ... Nutrafol®, a first-to-market smart-supplement for healthy ... stress related hair loss. With patent-pending formulas for both female hair loss and ... the medical and salon channels nationwide. , Dermatologists, Plastic Surgeons and hair ...
Breaking Biology Technology:
Cached News: