Wastewater treatment in the State of Santa Catarina

The collective sanitation infrastructure program comprises 500 km of sewer networks, 40,000 network connections, 9 wastewater treatment plants with a total treatment capacity of 45,500 m3 a day and a remote management system for electro-mechanical and supervision equipment (alarm management, diagnostics, performance monitoring). These management tools are in the pilot phase for water distribution and do not yet exist for sanitation. They will be systematized at CASAN.The program contributes to improving access to sanitation services for a population of 200,000 people. A geographic information system is also planned in order to optimize the maintenance and renewal of water and sanitation networks. A consultant will assist CASAN in the definition of its needs and the implementation of the tool. The sludge from the treatment (7,500 m3 a year for the program) will be buried in landfill and the methane produced by the plants will be burnt on site.Depending on the conclusions of this research, AFD may assist the State of Santa Catarina and CASAN in the definition of a strategy concerning the final destination of the sludge from sanitation.