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Nhartanda Verde, Tete Mozambique waste water inflow reduction


Titre : Nhartanda Verde, Tete Mozambique waste water inflow reduction

Pays/Région : Mozambique

Date 01-Nov-2017 // 31-Dec-2018

Fast urban growth of the city of Tete and poor sanitation facilities in the informal settlement form a hazard for the quality of the groundwater. This is also the case for the aquifer of the so called Nhartanda Valley, which is used for the drinking water supply of part of the city. The Nhartanda Valley is an old branch of the Zambeze river and situated near the center of the city of Tete. ARA-Zambeze is the responsible institution for the management of water resources, including groundwater. The Municipality of the city of Tete is responsible for urban planning and enforcement of these plans. Both organizations are collabarating since 2014 to implement measures and actions to avoid the pollution of the Nhartanda Valley aquifer. The action plan for this purpose has been approved by the Municipal Assembly in 2017 and involves other parties like e.g. the drinking water company FIPAG. The protection of the groundwater is a complex process and involves technical measures, communication, community involvement, legal instruments. As there is limited experience on succesful approaches, an experimental approach with constant monitoring is appropriate. The philosophy of the Nhartanda Verde project fits in this approach.

The purpose of this project is to improve the quality of the water resources in the Nhartanda valley. The aquifer of the Nhartanda Valley is used for supply of drinking water of the city of Tete. Lack of sanitation facilities and waste water coming from informal settlements is causing pollution of the water resources. . Interventions in the waste water streams and public places of the informal settlements will enhance the quality of the water resources but also improve quality of living to inhabitants of the informal settlements.

Main interventions
1) Construction of pocket parks in informal settlements with trees, public toilet and waste bin. This will decrease open defecation, which is one of the main causes of water pollution in the Nhartanda valley. Furthermore, the pocket parks will provide an alternative cool place for markets and other activities. 2) Construction of sand dams in waste water streams. Sand dams diminish erosion and can be combined with nirogen binding vegetation. They will also increase the water availability through the year, which is beneficial for urban for agriculture. 3) Reforestation of the edge of the Nhartanda valley. More trees will take up nitrate and decrease pollution of water resources. This forest edge will also discourage unwanted land use activities like clay digging and informal buildings among others. After a few years facilities like markets, soccer fields and public parks can be constructed in the forest edge.

Total Budget : 185,410 EUR

Aqua for All

Page publiée le 22 juillet 2018