Desulfurization wastewater treatment system and desulfurization wastewater treatment method
A desulfurization wastewater and treatment system technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of reducing the utilization of gypsum recyclable resources, increasing operating costs, and ammonia nitrogen content Advanced problems, to achieve the effect of reducing solid load and failure rate, reducing operating investment costs, and simplifying the process flow
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[0058] Example
[0059] Such as figure 2 As shown, this embodiment provides a 2*1.2 million tons / year pelletizer flue gas wet desulfurization system wastewater treatment and reuse project. The water quality parameters before desulfurization wastewater treatment are shown in Table 1.
[0060] Table 1 Water quality before and after treatment of pellet wet flue gas desulfurization wastewater in this example
[0061] Item
[0062] The specific wastewater treatment methods are as follows:
[0063] (1) The flue gas desulfurization wastewater enters 25m 3 The wastewater buffer tank is collected by collecting desulfurization wastewater to adjust the water output at the outlet of the wastewater buffer tank to keep constant, and the wastewater output is 25m 3 / h.
[0064] (2) The waste water that enters the frame filter press of the sludge pressing equipment is pressed to remove about 85% of the sludge in the waste water, and the sludge is pressed into a mud cake and directly transported to ...
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