Development studies
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Dry Stone Causeway
Causeways are a strong, low-cost means of river crossing.
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Handbook on Community-Led Total Sanitation
This handbook focuses on igniting a change in sanitation behaviour rather than constructing toilets. It is an attempt to bring together experience, diversified practice and local innovations from different countries and many sources.
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Quality Control in Food Processing
An essential component of any food processing business, quality control protects customers and business whilst ensuring food law compliance.
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Wind Pumping
This document examines the principles of wind energy conversion and looks at the types and characteristics of rotors, as well as the importance of matching rotor with pump.
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Clay as a Binder
Clays are the main binders of earth and are made up of very small mineral particles leached out during the erosion of rock.
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Energy from the Wind
Wind turbines can be used for large-scale energy delivery, but can also be highly effective as small-scale remote applications.
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Hydraulic Lime: An Introduction
Hydraulic lime was an important cementitious material before the arrival of Portland cement but it is little used now, except in conservation work.
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Lime Production: 2
Lime has been used in the Malawian building industry for many generations, principally as the cementing agent in renders and to produce a decorative whitewash.
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Producer Gas for Power Generation
Producer gas is formed by the partial oxidation of a carbonaceous material, such as biomass or coal, in a furnace, generator, or 'producer' unit. This fact sheet outlines the method of doing this, and also other factors to consider like availability of resources and resulting pollutants.
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Fruit Juice Processing
This brief looks at juice extraction, preparation, pasteurisation, bottling, quality control, and equipment suppliers.