Zero nutrient discharge and total reuse of domestic waste(water) nutrients in agriculture and aquaculture.
Development of an approach for agricultural use of recovered nutrients from domestic waste(water) considering future development scenarios in Caribbean Islands. Case study: St. Eustatius (Statia).
St. Eustatius (Statia), a small island in Caribbean, is becoming an attractive place for tourism. The population and economy are predicted grow. As a consequence production of waste, wastewater will increase. This will have adverse impact on the coastal environment in Statia. The existing wastewater infrastructure is performing poorly. Seepage or discharged effluent containing nutrient from this system might loss and accumulated in aquatic ecosystem because of leaching or run-off within the island. Furthermore, the waste is dumped at an open landfill which is close to coastal ravine. During heavy rainfall waste is dispersed across coastal zone, which leads to losses of materials and nutrient that can be also the cause of eutrophication. In addition, production of more goods is also necessary to support the island that at present the agricultural products are mostly imported from outsiders. Hence, to be more sustainable in the island, the generated nutrient from domestic waste(water) can be recovered and reused for agricultural/horticulture practices.