Feb 03, 2012
Landfill gas a source of renewable energyBack
Engineering|Africa|Engines|Gas|Installation|Pipe|Renewable Energy|Renewable-Energy|Resources|System|Systems|Turbines|Waste|Waste Management|Africa|Energy|Equipment|Systems|Environmental|Turbines|Waste|Pipe
© Reuse this
The use of methane gas from landfill to fuel electricity generation systems is one solution to the much-needed diversification of energy resources in Southern Africa, says the Institute of Waste Management of Southern Africa (IWMSA).
“We have to take responsibility for finding effective ways to manage and destroy the large volumes of methane being continuously emitted into the atmosphere,” the organisation states.
Landfill gas comprises about 50% methane, which is a colourless, odourless, but highly flammable gas; 40% carbon dioxide; and small quantities of oxygen and nitrogen, as well as over 100 other trade gases, including carbon monoxide and hydrogen sulphide.
The IWMSA says that typical landfill gas, if permitted to accumulate in low-lying or confined spaces, may produce an atmosphere that is both explosive and hazardous to life.
Several regional landfill interest groups that fall under the auspices of the IWMSA enthusiastically support and encourage progress in the field of landfill management and gas extraction methodologies.
IWMSA president Stan Jewaskiewitz says gas can be readily extracted from landfill, provided that proper engineering of the extraction and management system is carried out, and that the landfill is well managed.
The extraction of landfill gas can take place once landfill cells reach capacity, at which point the landfill is covered, extraction equipment and collection pipe networks are established and the process of extracting the landfill gas can begin.
In addition, the installation of landfill gas extraction systems can be incorporated in the landfilling process, enabling the extraction of landfill gas much earlier, prior to the completion of individual landfill cells. The extracted landfill gas can be used to fuel gas engines or turbines and generate electricity.
Not only will this have environmental benefits, but it could also potentially create employment opportunities.
Edited by: Chanel de Bruyn© Reuse this Comment Guidelines (150 word limit)
Creamer Media Senior Deputy Editor Online
Other Energy News
Recent Research Reports
Water 2015: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2015 Report considers the aforementioned issues, not only in the South African context but also in the African and global context in terms of supply and demand, water stress and insecurity, and access to water and sanitation, besides others.
Input Sector Review: Pumps 2015 (PDF Report)
Creamer Media’s 2015 Input Sector Review on Pumps provides an overview of South Africa’s pumps industry with particular focus on pump manufacture and supply, aftermarket services, marketing strategies, local and export demand, imports, sector support, investment...
Liquid Fuels 2015: A review of South Africa's liquid fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2015 Report examines these issues in the context of South Africa’s business environment; oil and gas exploration; fuel pricing; the development of the country’s biofuels industry; the logistics of transporting liquid fuels; and...
Road and Rail 2015: A review of South Africa's road and rail sectors (PDF Report)
Creamer Media’s Road and Rail 2015 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail infrastructure and network, the funding and maintenance of these respective networks, and...
Defence 2015: A review of South Africa's defence sector (PDF Report)
Creamer Media’s Coal 2015 report examines South Africa’s coal industry with regards to the business environment, the key participants in the sector, local demand, export sales and coal logistics, projects being undertaken by the large and smaller participants in the...
Real Economy Year Book 2015 (PDF Report)
There are very few beacons of hope on South Africa’s economic horizon. Economic growth is weak, unemployment is rising, electricity supply is insufficient to meet demand and/or spur growth, with poor prospects for many of the commodities mined and exported. However,...
This Week's Magazine
The BMW Group will invest R6-billion at BMW Group South Africa’s (BMW SA’s) Rosslyn plant to produce the next-generation X3 sports-activity vehicle (SAV) for the local and export markets. Rosslyn will continue production of the current 3 Series through its lifecycle,...
The lack of consequences for poor performance and transgressions on the part of contractors remains a significant hurdle to tackling South Africa’s service delivery challenges, delegates heard at the Consulting Engineers South Africa Infrastructure Indaba, on...
City of Ekurhuleni executive mayor Mondli Gungubele earlier this month officially named the city’s bus rapid transit (BRT) system, Harambee.
About 58% of unstructured data stored by companies is dark data, which means that the value or regulatory importance of the data has not been determined. Subsequently, most of the stored data add costs, rather than increasing revenue or reduce regulatory risks, says...
Effective logistics, import/export and manufacturing consulting services require detailed industry knowledge and experience, but can add significant value to these industries by providing expert advice on various technical elements in their value chains, says...