Vacuum evaporator AC R series

processfor wastewater treatment

The AC R and AC S series evaporators are designed for wastewater treatment and offer the highest level of concentration and solids separation in the entire EVALED range. The models in these series add an internal surface scraping system (auger or oscillating depending on the model) to the effectiveness of low-temperature evaporation provided by the vacuum condition in the boiler, that enables to obtain a semi-solid final concentrate with a dry matter content higher than 75%. The high concentration capacity coupled with the ability to treat wastewater containing a high content of dissolved or particularly viscous solids, make these evaporators the ideal choice often also as a second concentration step, downstream of a first evaporator that pre-concentrates the initial flow rate. A waste treatment plant in which a first forced circulation unit is combined with a second AC R or S evaporator can achieve a reduction of up to 98% of the initial effluent to be treated. High concentration factor ZLD The availability of a cogeneration or flue gas heat recovery plant makes these evaporators especially advantageous as they are able to harness excess thermal energy, thereby lowering the operating costs associated with electricity consumption. Flow rates of 3 to 12 tonnes/day (960 - 3840 tonnes/year) of distillate produced Ideal for handling pre-concentrated liquids The high concentration factor allows ZLD (Zero Liquid Discharge) targets to be achieved, reducing supply costs and water impact, as well as substantially reducing disposal costs.