ERIC Number: ED235042
Record Type: Non-Journal
Publication Date: 1982
Reference Count: N/A
Methane Digestors. Third World Science.
Jones, Natalie; Hughes, Wyn
This unit, developed by the Third World Science Project, is designed to add a multicultural element to existing science syllabi (for students aged 11-16) in the United Kingdom. The project seeks to develop an appreciation of the: boundless fascination of the natural world; knowledge, skills, and expertise possessed by men/women everywhere; application of knowledge and skills to solve the practical problems of everyday life; impact of modern technology in the world; and the influence of the cultural background on the perception of knowledge, problems, and solutions. The unit begins with a discussion of the viability of and technology involved in producing methane from waste materials, followed by information on: physical/chemical properties of biogas; basic theory of anaerobic breakdown of materials into methane; differences between aerobic/anaerobic methods in methane digestors; reproduction of the anaerobic process in air-tight containers; and role of different bacteria in the biological breakdown of wastes in digestors. A discussion of what kind of digestor should be built and best way of using gas/slurry produced follows. A report on the role of the integrated biogas system in Sri Lanka (illustrating benefits for a country lacking in fossil fuels) and a description of how small digestors can be constructed using school materials are included. (JN)
Descriptors: Chemical Reactions, Cultural Activities, Developing Nations, Elementary School Science, Foreign Countries, Fuels, Intermediate Grades, Microbiology, Quality of Life, Science Education, Science Experiments, Secondary Education, Secondary School Science, Sludge, Wastes
Centre for World Development Education, 128 Buckingham Palace Road, London SW1W 9SH England.
Publication Type: Guides - Classroom - Teacher
Education Level: N/A
Audience: Practitioners; Teachers
Sponsor: Training Services Agency, London (England).
Authoring Institution: University Coll. of North Wales, Bangor (United Kingdom). School of Education.
Identifiers - Location: Sri Lanka; United Kingdom