High-salt, high-COD and high-chroma coal chemical zero-emission mother liquor treatment device

Abstract

The utility model relates to the technical field of coal chemical industry wastewater treatment, in particular to a high-salt high-COD (Chemical Oxygen Demand) high-chroma coal chemical industry zero-emission mother liquor treatment device which comprises a mounting plate, a mother liquor tank and a mother liquor circulating tank are fixedly connected onto the mounting plate, the mother liquor circulating tank is communicated with the mother liquor tank through a material guide pipe, and a circulating pump is communicated between the mother liquor tank and the mother liquor circulating tank. The mounting plate is fixedly connected with an activated carbon adsorption mechanism, and the bottom end of the activated carbon adsorption mechanism is communicated with the mother liquor circulating tank through a feeding pump. The mother liquor tank is communicated with the mother liquor circulating tank to circulate mother liquor, the temperature of the mother liquor is ensured, the activated carbon adsorption mechanism is prevented from being blocked by crystallization and precipitation of a saturated solution, and the activated carbon adsorption mechanism adsorbs introduced liquid and adsorbs and removes macromolecular organic matters with chromogenic groups in the mother liquor. The removed mother liquor returns to the system, so that the whiteness of a salt product is improved, and the impurity salt rate is reduced.

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