A density current baffle for use in a clarifier tank has a first baffle portion having a lower end, an upper end and an intermediate central portion. The lower end of the baffle portion is coupled to a side wall of the clarifier tank. The upper end of the  baffle portion being disposed away from the side wall of the clarifier tank. The intermediate central portion between the lower end and the upper end, the baffle portion is curved such that the upper end curves inward towards the center of the tank.

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