Practical Answers
-
Slow Sand-Filtration Water Treatment Plants
Slow sand-filtration systems are a technically viable water treatment solution.
-
Water Hyacinth
This document suggests solutions for the control of water hyacinth - biological, physical and chemical - and discusses possible practical applications of the plant.
-
Composting in the Tropics
Organic matter is often piled up in the compound but left unmanaged. This will produce compost but the materials will take a long time to decompose and nutrients will be lost.
-
How to make Sri Lanka's Anagi Stove
A step-by-step guide to making a two pot ceramic stove.
-
How to Measure the Energy Used to Fire Clay Bricks
What defines an energy-efficient brick-firing technology and how does it compare to other technologies?
-
Rainwater Harvesting
This technology is used in places where conventional water supply systems are not provided, are too expensive, or fail to meet people's needs.
-
The Sri Lankan Pumpkin Tank
A small scale roof water harvesting tank promoted in Sri Lanka by the World Bank.
-
Assessing the Technical Problems of Brick Production
A guide for brick makers and field workers to help identify technical problems.
-
The Kebkabiya Plough
This plough has been used with great success in Kebkabiya, Sudan. Here is a highly visual guide to its use.
-
Natural Dyeing of Textiles
This fact sheet looks at types of textiles, equipment, dyes and mordants for home dyeing and very small-scale commercial dyeing.