Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Microwaving Waste Goodbye

18.06.2008
Malaysia produce 70 million tons of organic wastes annually. Most of these are either incinerated or dumped in landfill and both of which have serious impact on the environment. A research is conducted at Universiti Malaysia Sarawak to reutilise the wastes and explore their potential as energy sources.

In Malaysia, approximately 70 million tones of organic wastes are generated annually as municipal solid wastes, agricultural residues, animal wastes, sewage sludge from wastewater treatment plant and wood chips.

Most of these wastes are either incinerated or dumped in landfill. The latter requires precious open lands, while the former contributes to serious atmospheric pollution. Both of which have serious impact on the environment. The country, therefore, needs to adopt a more practical, economic and acceptable approach in managing and disposing the organic wastes.

The thing about organic wastes is that they harbour abundance volatile matter which can be converted to fuel through suitable treatment, such as pyrolysis. This possible method is receiving increasing attention as an economic and environmentally acceptable route to waste disposal due to its ability to produce fuel gases and oil.

The latest development in the pyrolysis technology is the application of heat by using microwave energy. Microwave treatment might serve as an alternative method for drying, pyrolysing and gasifying the organic wastes in one single step. The research in this method, however, has not been extensive. Published information on microwave pyrolysis design and process condition is also lacking.

A research group at the Department of Chemistry, University Malaysia Sarawak, has designed a laboratory scale microwave pyrolysis system through modification of laboratory microwave oven. The aim is to conduct chemical characterisation of the waste samples and their microwave pyrolysis products, and to optimise the microwave pyrolysis processes for optimum biofuel yield which is environmentally acceptable. The main focus is to develop an efficient, simple and low-temperature based process for converting organic wastes into useful renewable energy sources.

Preliminary studies on low-temperature microwave pyrolysis of sewage sludge suggest a fuel material potential, comparable to the lower grade coal.It is hoped that data gathered in this study will provide useful information on the microwave pyrolysis of organic wastes and the potential use of the process as an alternative for the reutilisation of wastes, which at the same time produce renewable energy sources for industries in Malaysia.

ABOUT UNIVERSITI MALAYSIA SARAWAK (UNIMAS)

UNIMAS was established in 1992. The University's mission is to generate, disseminate and apply knowledge strategically and innovatively to enhance the quality of the nation’s culture and prosperity of its people. The knowledge creation initiatives at UNIMAS are premised partly upon the wealth of natural resources and diverse socio-cultural make up of the State of Sarawak. UNIMAS commitment to research has already been recognized by the stakeholders and partners in industry through provision of endowments for the establishment of eight research chairs; these include the Tun Zaidi Chair for Medicinal Chemistry, the Tun Openg Chair for Sago Technology, the Shell Chair for Environmental Studies, and the Sapura Chair for ICT.

Resni Mona | ResearchSEA
Further information:
http://www.unimas.my
http://www.researchsea.com

More articles from Ecology, The Environment and Conservation:

nachricht Finding plastic litter from afar
19.11.2018 | Carl von Ossietzky-Universität Oldenburg

nachricht Despite government claims, orangutan populations have not increased. Call for better monitoring
06.11.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

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: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Optical Coherence Tomography: German-Japanese Research Alliance hosted Medical Imaging Conference

19.11.2018 | Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

 
Latest News

Controlling organ growth with light

19.11.2018 | Life Sciences

New way to look at cell membranes could change the way we study disease

19.11.2018 | Life Sciences

Optical Coherence Tomography: German-Japanese Research Alliance hosted Medical Imaging Conference

19.11.2018 | Event News

VideoLinks
Science & Research
Overview of more VideoLinks >>>