GEA's highsalt wastewater drying and evaporation process: GEA's spray drying technology and proprietary equipment can effectively dry saline wastewater from various industrial processes, including wet flue gas desulfurization (FGD) wastewater. The heat in the flue gas evaporates the water in the wastewater, turning it into freeflowing dry powder. This powder can be collected by downstream dust collectors, achieving zero wastewater discharge.
Process Flow: The GEA spray drying evaporation process is both efficient and simple, essentially consisting of a spray drying evaporation unit and a downstream dust collector. Normally, the salts from the wastewater drying evaporation are collected by the main dust collector and mixed with fly ash from the flue gas.
If necessary, the dried salts can be separated and collected by a dedicated dust collector downstream of the drying tower. In this case, a booster fan needs to be installed after the dedicated dust collector to return the filtered flue gas to the main flue gas duct.
Industry Applications of Spray Drying Technology: GEA's spray drying evaporation solution is one of the economical and efficient ways to achieve zero wastewater discharge.
This solution can be applied to various types of wastewater evaporation, such as wet flue gas desulfurization (WFGD) processes in power plants, or wet flue gas purification processes in waste incinerators or similar equipment.
Please contact GEA to assess the feasibility of wastewater spray drying at your designated plant.
