This document will examine the technical, safety and administrative problems related to the use of flammable blowing agents in the production of extruded polystyrene boards (XPS). The document focuses on production of XPS rather than the design and certification of the XPS boards itself. The explanations, descriptions and examples are specifically focused on safety elements required for a proper production. The producer of XPS should always be aware of the product quality and on the basis of this knowledge eventually increase the safety system.
Ponds and tanks
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Publication dateObjectiveSectors
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Publication dateObjectiveSectors
In sub-Saharan Africa, especially in the Makanya catchment of northern Tanzania, rainfed subsistence farming systems obtain low crop yields as a result of highly erratic rainfall seasons. The research sought to prove that, with improved farming innovations (runoff diversion, on-site rain water harvesting and conservation tillage), grain yields can improve even under the existing challenging hydro-climatic conditions. The results showed that the innovations resulted in increased maize grain yields of up to 4.8 t ha_1 compared against current averages of less than 1 t ha_1.