Poor Wastewater treatment and solid waste management in Africa and its impact on water treatment costs

1. What are the main issues which have made wastewater treatment in most African countries a non-stater or very poorly considered. 2. Do Africangovernments understand that treatment wastewater properly and proper wastewater handling results in reduced water treatment costs. e.g. if a sewage treatment plant discharges just upstream the water treatment plant the costs of water treatment will be so high due to nutrient overload into the stream or intake reservoirs 3. What exactly can we do to change the current situation of neglected wastewater treatment in the continent e.g. some countries even dischargetheir waste into oceans or seas. 4.What solid waste management??? what can be done its in fact worse than wastewater management in most African countries, any beneficial way of handling solid waste????