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:10/30/2014)... therapeutics present unique challenges when it comes to ... harm. New consensus guidelines for toxicity testing that ... characteristics of these novel biopharmaceuticals are presented in ... from Mary Ann Liebert, Inc. publishers . ... Nucleic Acid Therapeutics website until November 30, ...
(Date:10/30/2014)... Oct. 29, 2014  Securus Technologies, a ... technology solutions for public safety, investigation, corrections ... deployed exciting enhancements to its THREADS™ product, ... provide actionable intelligence and focused leads for ... drive technological innovation through identifying and delivering ...
(Date:10/29/2014)... Beaverton, OR) New research presented at the ... in Houston, TX showed for the first time ... in women using a readily available nutritional supplement, ... by Dr. Judith A. Smith, Pharm.D., associate professor ... Sciences at The University of Texas Health Science ...
Breaking Biology News(10 mins):New guidelines for reproductive & developmental toxicity testing of oligonucleotide drugs 2Securus Technologies Adds Advanced Features to Its Industry-Leading Investigative Analytics Product 2HPV infections in women eradicated by AHCC, Japanese mushroom extract 2
(Date:10/30/2014)... , Oct. 30, 2014  Regado Biosciences, Inc. ... will hold a conference call and live audio webcast ... to discuss its third quarter 2014 financial results. ... call by dialing (888) 347-1165 for domestic callers or ... be webcast live under the investor relations section of ...
(Date:10/30/2014)... (Oct. 29, 2014) – The severe flooding that devastated ... been less destructive if the bridges, roads and other ... new study from the University of Colorado Denver. , ... infrastructure," said Jimmy Kim, PhD, associate professor of structural ... Applied Science and lead author the study. "There is ...
(Date:10/27/2014)... October 27, 2014 The new ... Type (High & Medium), Sub-type (Primary & Secondary), ... Infrastructure & Transportation & Power Generation) - Trends ... GIS market with analysis and forecasting of the ... Data Tables with 52 Figures spread through 146 ...
(Date:10/27/2014)... TORONTO , Oct. 27, 2014 ... (OTCQB: GNBT) today announced two presentations demonstrating that ... its novel proprietary cancer immunotherapeutic AE37 vaccine correlated ... patients. The AE37 cancer vaccine is being developed ... ( www.antigenexpress.com ). The presentations are being made ...
Breaking Biology Technology:Regado Biosciences to Provide Third Quarter 2014 Financial Results 2CU Denver study says upgrading infrastructure could reduce flood damage 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 3Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 4Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 2Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 3Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 4
Cached News: