HPD Systems, a Veolia Water Solutions & Technologies company in Plainfield, Ill., will provide the engineering design for evaporation and crystallization equipment for the Vale Carnalita potash project in the state of Sergipe in Brazil.

This will be the first phase of development for the initial 1.3 million ton/year-production of potassium chloride expected to begin in 2015. The project will be the largest potash extraction facility in Brazil.

The equipment will purify natural deposits from solution-mining operations of carnalite for producing potassium chloride that will be sold as chemical fertilizer in the Brazilian market. The process equipment includes a multiple-effect evaporation system followed by a multiple-stage crystallization system. Overall, the process will maximize steam economy and provide condensate for reuse in solution-mining operations.