Method and system unit for flue gas desulfurization and wastewater treatment
A technology for desulfurization wastewater and treatment methods, which is applied in dehydration/drying/concentrated sludge treatment, water/sewage treatment, neutralized water/sewage treatment, etc., and can solve complex evaporation treatment equipment, no root cause of pollution, high energy consumption, etc. problems, to achieve the effect of simple and convenient operation, avoiding special equipment, and economical investment
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[0043] The flue gas desulfurization wastewater treatment method comprises the following steps:
[0044] 1. Alkaline treatment with calcium hydroxide, the pH value is about 9.5;
[0045] 2. Add organic sulfide, the amount added is 50mg / L;
[0046] 3. Added coagulant aluminum sulfate (30mg / L), and 0.1% aqueous solution flocculant polyacrylamide (8mg / L);
[0047] 4. Carry out water clarification and sludge concentration, and separate suspended solids from wastewater;
[0048] 5. Dewater the concentrated mud.
[0049] The flue gas desulfurization wastewater treatment system device of the present invention is shown in Fig. 1 to Fig. 4. The system device is composed of a wastewater buffer tank 5, a neutralization / reaction / flocculation tank 8, a clarification / concentration tank 17, and a water outlet tank 20 connected in series through pipelines.
[0050] The wastewater buffer pool is shown in Figure 1. The desulfurization wastewater 1 first flows into the wastewater buffer pool 5...
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