Steel iron wastewater coagulating sedimentation and filtration treatment system
A coagulation sedimentation and treatment system technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve equipment corrosion, high operating cost, and ineffective backwashing Sufficient and other issues, to achieve the effect of reducing operating costs, reducing equipment corrosion, and smooth process flow
Active Publication Date: 2009-07-01
SHOUGANG CORPORATION
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Problems solved by technology
[0003] In order to overcome the unsatisfactory coagulation and sedimentation effect of the traditional coagulation sedimentation tank, the limited control means of ordinary fast filter tanks, insufficient backwashing, poor sealing between the cover and tank of the mobile cover filter tank, serious equipment corrosion, and high operating costs, this project The invention provides a coagulation sedimentation and filtration treatment system for iron and steel sewage
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[0017] Before selecting the iron and steel sewage coagulation sedimentation and filtration treatment system, firstly calculate the incoming water volume, analyze the incoming water composition, and the water outlet requirements, and select the appropriate coagulation, sedimentation load, and filtration speed to determine the high-density clarifier and filter. Various sizes and related equipment configuration models. Among them, the circulation barrel, mud scraper, inclined pipe, overflow weir, etc. included in the high-density clarifier, and the inlet and outlet water control valves, weir plate, backwash pump, blower, etc. included in the filter are all equipment that match the design parameters. Choose different equipment models according to different coagulation, sedimentation loads, and filtration speeds.
[0018] In the figure, the main structure of the high-density clarifier 24 and the filter tank 25 is cast from reinforced concrete; the reaction chamber of the high-densi...
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The invention relates to a coagulation sedimentation and filtration treatment system for iron and steel sewage, which is especially suitable for the treatment of tail production wastewater in the iron and steel industry or comprehensive sewage mixed with less than 30% domestic sewage. The system includes a high-density clarifier and a filter. The high-density clarifier integrates reaction, clarification, and concentration. It is divided into a flocculation reaction zone, a pre-sedimentation-concentration zone, and an inclined tube separation zone. Coagulation and pH adjustment pool, the filter pool integrates filtration and backwashing, and is divided into water distribution area, filtration area, backwashing area, and clean water area. The invention overcomes the unsatisfactory coagulation and sedimentation effect of the traditional coagulation sedimentation tank, the limited control means of the ordinary fast filter tank, insufficient backwashing, poor sealing between the cover and the tank of the mobile cover filter tank, serious equipment corrosion, and high operating costs. .
Description
technical field [0001] The invention relates to a comprehensive sewage coagulation sedimentation and filtration system, which is especially suitable for the treatment of comprehensive production wastewater in the iron and steel industry or comprehensive sewage mixed with less than 30% domestic sewage. Background technique [0002] Most of the comprehensive sewage treatment technologies in the iron and steel industry are physical-chemical methods. According to different process combinations, there are mainly two types: flocculation reaction sedimentation tank + ordinary fast filter tank, coagulation sedimentation and lime softening + mobile cover filter tank, and the above two process combinations Due to relatively conservative coagulation, sedimentation and filtration technologies, the volume of the pool is large and the effect of coagulation and sedimentation is not ideal, especially the former is mainly suitable for surface water treatment and is a traditional process for r...
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IPC IPC(8): C02F9/08C02F1/52C02F103/16
Inventor 寇彦德李玮黄凤旭陈志新
Owner SHOUGANG CORPORATION