Processing system used for high sulfur concentration flue gas recovery waste water, and construction process thereof
A flue gas recovery and treatment system technology, applied in the direction of gaseous effluent wastewater treatment, water/sewage treatment, water treatment parameter control, etc., can solve the problems of high COD of wastewater and difficulty in reaching the discharge index of desulfurization wastewater
Inactive Publication Date: 2018-09-28
攀枝花市蓝鼎环保科技有限公司
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Problems solved by technology
However, for high sulfur concentration sintering flue gas desulfurization, the COD of the wastewater produced by the limestone-gypsum desulfurization process is relatively high, and the desulfurization wastewater using conventional treatment methods is difficult to meet the requirements of the national emission indicators.
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Embodiment 1
[0022] Table 1 is the process flow program and equipment parameters of the specific embodiment of the present invention. The waste water from high-sulfur flue gas treated with limestone-gypsum is collected in the waste water tank, and the desulfurized gypsum slurry discharged from the bottom of the waste water tank is sent to the dehydrator to obtain desulfurized gypsum. The over-standard treatment device 1 is aerated for 3 to 5 hours under the condition of adding agent 1, and after removing COD in the wastewater, it flows into the heavy metal over-standard treatment device 4 by itself, and is stirred and treated under the condition of adding agent 2 by the heavy metal over-standard treatment device 4 for 0.5-1.5 After removing heavy metal ions in the wastewater, it flows into the suspended solids coagulation treatment device 7, and the suspended solids coagulation treatment device 7 is stirred for 0.5 to 1.0 hours under the condition of adding agent 3 and agent 4, and then flo...
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The invention discloses a processing system used for high sulfur concentration flue gas recovery waste water, and construction process thereof, and belongs to the technical field of environment protection facility design manufacturing. The processing system used for high sulfur concentration flue gas recovery waste water and the construction process thereof are capable of reducing the COD in limestone-gypsum desulphurization technology waste water obviously. The processing system comprises a COD component standard exceeding processing device, a heavy metal standard exceeding processing device,a suspension coagulation processing device, and a sedimentation basin. COD component, heavy metal, suspension matters, and other impurities in high sulfur concentration flue gas recovery waste waterare removed successively in the components of the processing system, and at last precipitation is completed in the sedimentation basin through standing so as to realize high sulfur concentration fluegas recovery waste water processing.
Description
technical field [0001] The invention relates to a treatment system, in particular to a treatment system for recycling waste water from flue gas with high sulfur concentration, and belongs to the technical field of design and manufacture of environmental protection facilities. The invention also relates to a construction process for treating high-sulfur concentration flue gas recovery waste water by using the treatment system. Background technique [0002] Due to less and less high-quality resources such as coal and ore, more and more high-sulfur coal and high-sulfur ore resources are used in sintering and thermal power production, resulting in a gradual increase in the sulfur content in flue gas. Aiming at the desulfurization of iron and steel sintering machines, various sintering flue gas desulfurization technologies have been developed successively. Among them, the wet desulfurization process represented by the limestone-gypsum process is the most widely used, and the des...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C02F9/04C02F103/18
CPCC02F1/52C02F1/5281C02F1/62C02F1/66C02F7/00C02F9/00C02F2101/101C02F2103/18C02F2209/06C02F2209/08
Inventor 唐诗富李自树詹贵林陈孝元黄明忠贾里蘖黄安军
Owner 攀枝花市蓝鼎环保科技有限公司