Aminuddin Muhamad Baki and four other young researchers, supervised by Professor Suhaimi Abdul Talib, of UiTM, found that having more organic content in sludge will generate more methane. Biogas composed of methane and carbon dioxide is a by-product of anaerobic bacterial decomposition of organic waste.
The organic waste content of municipal garbage and sewage means that they are important sources for biogas production. The methane content in biogas enables it to be used as engine fuel as well as enabling it to be converted into heat and electricity. An experimental study was completed that examined the relationship between the organic content of sludge and methane generation as the sludge progressed through mesophilic anaerobic digestion.
This study examined the organic content in sewage, represented by Biological Oxygen Demand (BOD) and Total Suspended Solid (TSS), in order to: (a) quantify the biogas and methane generation from sewage sludge; (b) determine the relationship between organic content and volume of methane; and (c) determine the pressure of biogas and the relationship between sludge volume and volume of biogas. It was found that there is potential for methane generation during anaerobic digestion even with a small volume of sludge.
The quality of sludge for methane generation is subject to the characteristics of the sludge. The organic content represented by BOD and TSS was measured in accordance to APHA standard methods (1998). Tests were conducted on wastewater from two treatment plants: the College of Mawar, UiTM, and IWK WWTP Section 7, Shah Alam. It was found that higher organic content in sewage sludge produced a higher volume of methane.Contacts:
Europe’s Demographic Future. Where the Regions Are Heading after a Decade of Crises
10.08.2017 | Berlin-Institut für Bevölkerung und Entwicklung
Scientists reveal source of human heartbeat in 3-D
07.08.2017 | University of Manchester
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
16.08.2017 | Event News
04.08.2017 | Event News
26.07.2017 | Event News
22.08.2017 | Health and Medicine
22.08.2017 | Materials Sciences
22.08.2017 | Life Sciences