Zero-discharge purifying treatment method for mine wastewater and mine domestic sewage
A technology for domestic sewage and purification treatment, applied in water/sewage treatment, adsorbed water/sewage treatment, water/sewage multi-stage treatment, etc. To solve problems such as large land area, it can achieve the effect of ensuring physical adsorption and electrochemical adsorption performance, reducing power consumption and operating costs, and reducing floor space.
Inactive Publication Date: 2009-10-28
邢殿满
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[0002] At present, most of the discharge of mine wastewater and mine domestic sewage is treated by biochemical reaction. The disadvantages are: a large area of biological reaction tanks and sedimentation tanks are required, the area is large, the construction investment is large, and the construction time is long. The water quality does not meet the water quality standard for regeneration and reuse, and the sludge is not easy to dehydrate, causing pollution to the environment
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[0030] to handle 1200M 3 The Daping Coal Mine of / d coal mine wastewater is taken as an example to illustrate the present invention.
[0031] A zero-discharge purification treatment method for mine wastewater and mine domestic sewage. Its process steps are as follows:
[0032] 1) Pretreatment: The sewage flowing out of the septic tank enters the sewage treatment plant, and after passing through the grid, the larger floating matter and mud and sand are separated out, and the supernatant enters the regulating tank, which adopts a reinforced concrete structure, and stays After 2 to 4 hours, after mixing, adjusting and clarifying, it enters the purifier lifting pump pool;
[0033] The grid plate is a PVC plate with a hole diameter of 5mm.
[0034] 2) Primary treatment: The pretreated sewage enters the purifier lifting pump pool, and the purifier lifting pump pool adopts reinforced concrete structure. When the sewage water level in the purifier lifting pump pool rises to the upp...
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Abstract
The invention relates to a zero-discharge purifying treatment method for mine wastewater and mine domestic sewage. The method adopts the technical scheme that after the sewage passes through a grid, the supernatant enters in an equalizing tank; the sewage after pretreatment enters in a lifting pump sump for a purifier, when the sewage water level in the lifting pump sump for the purifier is raised to the upper limit water level, a composite water treatment agent in a chemical feeder and the sewage simultaneously pass through a lifting pump impeller and a pipeline mixer and then enter in a nanofihration circulating purifier after being sufficiently mixed, the sewage and the composite water treatment agent rapidly form a flocculation cake layer in the nanofihration circulating purifier and the sewage is filtered through the flocculation cake layer; the filtrate enters in a high-efficiency denitriding purifier through an intermediate pool and stays for 2-4 h; the sewage after secondary treatment enters in a strong-carbon adsorption purifier for purification; the purified water enters in a water purifying tank and a disinfectant is added. The invention has the advantages that the cost is low, and the water quality after treatment can meet the standard of the regenerated recycle-water.
Description
Technical field: [0001] The invention relates to a sewage treatment method, in particular to a sewage treatment method through a three-stage physicochemical method. Background technique: [0002] At present, most of the discharge of mine wastewater and mine domestic sewage is treated by biochemical reaction. The disadvantages are: a large area of biological reaction tanks and sedimentation tanks are required, the area is large, the construction investment is large, and the construction time is long. The water quality does not meet the water quality standard for regeneration and reuse, and the sludge is not easy to dehydrate, causing pollution to the environment. Under the conditions of less and less land resources and shortage of fresh water resources, how to make full use of sewage and meet the standards of recycled water after treatment has attracted more and more attention. Invention content: [0003] In order to solve the above problems, the present invention provid...
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IPC IPC(8): C02F9/02C02F1/52C02F1/58C02F1/28C02F1/50C02F1/42
Inventor 邢殿满
Owner 邢殿满
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