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A semi- cylindrical natural convection Solar Tunnel Dryer (STD) was used for experiments to dry partially field- dried maize cobs with a moisture content of about 30 % wet basis to a safe storage moisture content of 12.5 % wet basis. Air temperatures ranging from 15.8 oC to 20.8 oC above ambient...

Water abstraction is achieved by many means, and for many purposes. Abstraction depends on many variables that include the purpose for the abstraction, the location, the type of laws in place regarding the procedure, and the type of resources available for the abstraction process. The overall...

Zambia has been experiencing population increase over the years. The growth has been characterised by an increase in agricultural irrigation activities, competitiveness in water use which have caused water stress and conflicts in some catchments. Some water availability assessment works in...

Management of Non-Revenue Water (NRW) has been undergoing several and continuous transformations over the past two decades. The International Water Association (IWA) as well as other key stakeholders have been trying to find the ‘Best Practices’ in managing non-revenue water so as to help water...

According to the World Bank, Zambia generates approximately 0.9 kg of solid waste per person per day. The strategies in place for Municipal solid waste (MSW) management include a combination of three techniques: recycling, combustion, and landfill disposal. In Lusaka, at least 22.5 % of the waste...

In Zambia, sanitation options are still few and inadequate to effectively serve the urban poor in peri-urban settlements. Continued growth of the settlement now calls for alternatives to pit latrines, which have become difficult to manage given the increasing population. Sanitation is poor hence;...

Water hyacinth is, after eutrophication, the largest threat to waterways, lakes and dams throughout Africa. The aim of this study was to develop a procedure for monitoring the spread of water hyacinth on Lake Kariba using Remote Sensing and Geographic information System. The spread of water...

In Zambia, like in many other countries, industrialisation has brought with it the problem of environmental pollution associated with industrial waste waters. The discharge of industrial waste water into public sewers may deteriorate sewer structures, increase maintenance costs, add problems in...

Kaluwe phosphate ore constitutes calcite(74.4 wt %)as the major mineral with minor amounts of apatite(5.9 wt %),opaques(13.5 wt%),which are predominantly iron minerals,quart/feldspar(5.7) and traces of biotite(o.5 wt %).The chemical composition of the ore averaged 2.2% p2o5,47.7% Cao,1.6%mgo,1.2%...

There is growing concern in most developing countries regarding the use of technologies that are inappropriate to local conditions. In the area of treating surface water to drinking water quality, consideration of alternative treatment methods is receiving great attention particularly with regard...