Safe water reuse in Maputo, Mozambique
"Mozambique has been termed the worst country in the world with respect to access to clean and safe water  and its capital, Maputo (population 1.1 million, 2007) shares many of the problems of other cities in developing countries, as outlined below. Maputo can be roughly divided into the city-centre and peri-urban areas, each with very different social and architectural characteristics and water management issues.
the existence of broad inter-linkages between sectors and strong feedback loops that regulate the behaviour of the water system imply that a systems analytic approach is needed to holistically understand these challenges and identify appropriate leverage points for action. A current project has taken such an approach, developing a conceptual mass flow analysis (MFA) visualizing flows of drinking water, wastewater, faecal sludge and rainwater in Maputo. MFA “is a systematic assessment of the flows and stocks of materials within a system defined in space and time” and it allows for identification of linkages among different sectors in a system. This project will go on to quantify and map flows of energy, nutrients and health related vectors in the city."
Quote from: https://ehjournal.biomedcentral.com/articles/10.1186/s12940-016-0107-2
Great building block!