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:
(Date:3/17/2015)... , March 17, 2015 Emotient, ... analytics software, today announced general availability of ... service for the analysis of facial expressions. The ... advertising, media content, products and services. It delivers ... engagement and sentiment - as derived from facial ...
(Date:3/12/2015)... March 12, 2015 The mascots of the ... Hospital, part of Wake Forest Baptist Medical Center. They ... the 2015 ACC Men,s Basketball Tournament. Young patients enjoyed ... and getting their autographs. Brenner Children,s Hospital ... is the only children,s hospital in northwest ...
(Date:3/11/2015)...   The Sync Project™ today announced ... and harness music to improve health. The platform ... measurements of physiology, enabling the study of the ... populations. It is designed for medical and health ... studies and accelerate the discovery of the clinical ...
Breaking Biology News(10 mins):New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4Introducing The Sync Project, a Global Collaboration Harnessing the Scientific Potential of Music for Health 2Introducing The Sync Project, a Global Collaboration Harnessing the Scientific Potential of Music for Health 3
(Date:4/1/2015)... 2015 Earlier this year, A.J. ... sciences industry association that represents research-based life science organizations ... Jonathan Parker, AJO’s Vice President of Business Development & ... an event that attracted over 750 attendees. , ... 73 year old cancer survivor shared his moving story ...
(Date:4/1/2015)... , April 1, 2015 ... developing novel biological drugs to treat cancer, viral ... announce the appointment of Christina Coughlin ... responsible for providing medical and regulatory leadership to ... Dr. Coughlin has extensive experience in ...
(Date:3/31/2015)...  Biotest Pharmaceuticals Corporation (BPC), a leading developer of ... of its newest plasma collection center located at 2235 ... . The over 16,000 square foot state-of-the-art facility ... th 2015 and brings the total number of ... "This facility represents another milestone in our continued efforts ...
(Date:3/31/2015)... KY (PRWEB) March 31, 2015 ... 50 schools for online bachelor’s of criminal justice ... to connecting people to inspiring ideas and high ... an e-mail to the University. We are confident ... University.” , This is the site’s first ...
Breaking Biology Technology:HR Consulting Firm, A.J. O'Connor Associates Joins BioNJ – The Vibrant 400 Member Strong Life Sciences Industry Association - and Attends its Annual Dinner 2Immunocore Appoints Dr. Christina Coughlin as Chief Medical Officer 2Immunocore Appoints Dr. Christina Coughlin as Chief Medical Officer 3Immunocore Appoints Dr. Christina Coughlin as Chief Medical Officer 4Biotest Pharmaceuticals Corporation Announces the Opening of its Newest Plasma Collection Facility in Conway, Arkansas 2EKU Ranked in Top 50 Among Online Criminal Justice Degrees 2
Cached News: