Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New system of wastewater treatment could reduce the size of treatment plants by half

09.08.2007
A group of researchers from the University of Granada (Universidad de Granada have come up with a wastewater treatment system which has three clear advantages with respect to systems currently used: it is possible to obtain cheaper water of a higher quality, it considerably reduces the size of treatment plants (by more than half) and it minimizes the resulting mud production.

José Manuel Poyatos Capilla, researcher from the Department of Civil Engineering of the University of Granada [http://www.ugr.es], is the main responsible for this work, which has been directed by professor Ernesto Hontoria García, director of the Superior Technical Engineering School of Roads, Channels and Ports of the UGR [http://www.ugr.es]. Research of Prof. Poyatos is particularly interesting if the current global drought is taken into account, as well as the lack of space many municipalities have when the number of inhabitants grows, which makes it impossible to enlarge their water treatment plants.

Prof. Poyatos has used a new technology based on membrane bioreactor systems which makes it possible to shorten the water clarification process (by which active mud is separated), eliminating the stage known as “secondary decanting.” The structure of every plant currently has four stages: pre-treatment, primary decanting, biological reactor and secondary decanting. A tertiary treatment can also be added whenever water is used for irrigating.

An advantageous system

Research carried out at the UGR [http://www.ugr.es] could reduce the size of the biological reactor between 40 and 60%, and would completely eliminate secondary decanting. “In the future – explains the researcher –- we could even suppress the primary decanting stage.” In exchange, scientists from Granada have included a “biological processes” section in their wastewater treatment plant, which could make it possible to separate water from active mud by a membrane filtration process.

This researched and optimized system makes it possible to treat a larger flow of water in a smaller purifier, “and its building would involve a less expensive construction.” Installation is therefore much cheaper than installation of plants with tertiary treatment, and it also makes it possible to use the water immediately after it has been biologically treated.

The work of José Manuel Poyatos, which has been partly carried out at the University of Cranfield (England), is the first with these characteristics carried out in Spain. Results of his research have been published in prestigious journals such as ‘Journal of Environmental’ and ‘Microbiology&Biotecnology’, and they were also presented at the Ibero-american Congress on Membrane Science and Technology. They will be soon presented at two international congresses of the IWA (International Water Association).

Reference:
Dr. José Manuel Poyatos Capilla. Department of Civil Engineering [http://www.ugr.es/~decacien/Departamentos/ic.htm] of the University of Granada.

Tel.: +34 958 246 155 / +34 958 24 41 49. Mobile phone: +34 657 289 969. E-mail: jpoyatos@ugr.es.

Antonio Marín Ruiz | alfa
Further information:
http://www.ugr.es
http://prensa.ugr.es/prensa/research/verNota/prensa.php?nota=459

More articles from Ecology, The Environment and Conservation:

nachricht Preservation of floodplains is flood protection
27.09.2017 | Technische Universität München

nachricht Conservationists are sounding the alarm: parrots much more threatened than assumed
15.09.2017 | Justus-Liebig-Universität Gießen

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Ocean atmosphere rife with microbes

17.10.2017 | Life Sciences

Neutrons observe vitamin B6-dependent enzyme activity useful for drug development

17.10.2017 | Life Sciences

NASA finds newly formed tropical storm lan over open waters

17.10.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>