Power plant desulfurization wastewater concentration reduction device and process
A technology for desulfurization wastewater and electrolysis device, which is applied in the fields of gaseous discharge wastewater treatment, water pollutants, electrolysis process, etc., can solve the problems of high maintenance cost and operating cost, high treatment cost, complicated process, etc., and achieves low cost and cleanliness. Efficient promotion, easy promotion effect
Pending Publication Date: 2020-09-08
NORTH CHINA POWER ENG
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Problems solved by technology
Due to the high salt content of desulfurization wastewater, the membrane treatment method is likely to cause membrane fouling when the desulfurization wastewater is concentrated, and the maintenance and operation costs are high
[0006] From the above, the existing concentrated treatment methods for power plant desulfurization wastewater still have the problems of high treatment costs and relatively complicated processes
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[0025] Such as figure 1 As shown, it is a structural schematic diagram of an embodiment of the desulfurization wastewater concentration and reduction device for power plants of the present invention. The power plant desulfurization wastewater concentration and reduction device of this embodiment mainly includes a triple box 1, an ultrafiltration device 3 and an electrolysis device 4, wherein the triple box 1 is provided with a dosing device 2 and an inlet for the desulfurization wastewater from a power plant, and the ultrafiltration device 3 is connected to At the desulfurization wastewater outlet of the triple box 1 , the electrolysis device 4 is connected to the desulfurization wastewater outlet of the ultrafiltration device 3 .
[0026] Among them, the role of triple box 1 is mainly to settle and flocculate to remove suspended solids in wastewater; the role of dosing device 2 is to add coagulant, coagulant, acid or alkali, etc. to triple box 1; ultrafiltration device 3 The...
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The invention provides a power plant desulfurization wastewater concentration reduction device and process. The device comprises a triple box, an ultrafiltration device and an electrolysis device. Thetriple box is provided with a dosing device and an inlet for desulfurization wastewater of a power plant to flow in, the ultrafiltration device is connected with the triple box, and the electrolysisdevice is connected with the ultrafiltration device; according to the process, desulfurization wastewater generated by the power plant flows into the triple box through the inlet of the triple box provided with the dosing device, flows into the ultrafiltration device through a desulfurization wastewater outlet of the triple box after being subjected to sedimentation and flocculation of the triplebox, and is filtered again through the ultrafiltration device; the desulfurized wastewater flows into the electrolysis device from the desulfurized wastewater outlet of the ultrafiltration device, andafter the desulfurized wastewater is electrolyzed, oxygen and chlorine are generated in an anode chamber of the electrolysis device, and hydrogen is generated in a cathode chamber of the electrolysisdevice. According to the device and the process, the wastewater is concentrated and reduced by mainly utilizing an electrolysis technology, and meanwhile, by-products which can be reutilized are generated so that the whole process is green, environment-friendly, clean, efficient, relatively low in cost and easy to popularize.
Description
technical field [0001] The invention belongs to the technical field of waste water treatment, and relates to a device and a process for concentrating and reducing desulfurization waste water of a power plant while producing by-product gas, in particular to a process for concentrating and reducing waste water by using electrolysis technology. Background technique [0002] Limestone-gypsum wet desulfurization is the most widely used flue gas desulfurization technology in domestic and foreign power plants. The advantages of this method are high desulfurization efficiency and good gypsum quality. However, the disadvantage of this method is that a certain amount of high-concentration wastewater is regularly discharged to the outside world. Since the desulfurization wastewater is the most terminal wastewater of the power plant, it has the following characteristics: (1) The pollutant components in the wastewater are affected by factors such as the water quality of the desulfurizati...
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Patent Timeline
Login to View More IPC IPC(8): C02F9/10C25B1/04C25B1/26C25B9/00C02F103/18C02F101/20
CPCC02F9/00C25B1/26C25B1/04C25B9/00C02F1/444C02F1/52C02F1/461C02F1/04C02F2101/20C02F2101/203C02F2103/18Y02E60/36
Inventor 田江南徐淑姣周军涂宏刘军梅舒吉龙张恬
Owner NORTH CHINA POWER ENG