Deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system and method
A coagulation sedimentation and treatment system technology, applied in the direction of flocculation/sedimentation water/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problem of high cost, achieve good effect, low energy consumption, improve Effects on water security
Inactive Publication Date: 2012-08-15
YANGZHOU UNIV +1
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Problems solved by technology
Coagulation and sedimentation after algae killing still need to add a large amount of coagulant to make the algae settle, the dosage is more than 40mg / L, and the cost is high
Method used
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[0015] The present invention is further described in conjunction with the accompanying drawings and examples. Examples of the present invention figure 1 As shown, it consists of a water supply pump 1, a circulation well 5, a water treatment tank (composed of a mixing tank 9, a reaction tank 14, and a sedimentation tank 17) and a dosing device. The inlet and outlet of the water supply pump 1 are respectively connected with a water pump inlet pipe 2 and a water pump outlet pipe 3, the water pump inlet pipe 2 extends into the water source 4, and the water pump outlet pipe 3 is connected with the outer well 6 of the circulation well 5.
[0016] The circulation well 5 is a cylindrical airtight container, consisting of an outer well 6 and an inner well 7. The diameter of the inner well 7 is smaller than that of the outer well 6, and is located inside the outer well 6. The top of the inner well 7 is fixed on the top of the outer well 6, and the bottom end is open. There is a certain...
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Abstract
The invention provides a deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system and a treatment method, belonging to the technical field of feed water treatment. The deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system comprises a water supply pump, a water treatment tank and a drug feeding device, wherein the water supply pump and the drug feeding device are respectively connected with the water treatment tank through a pipeline; the deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system is characterized by being provided with a deep water circulating well for stressing air bags in the algae crack; the circulating well is provided with an inlet and an outlet; the inlet of the circulating well is connected with the water supply pump; and the outlet of the circulating well is connected with the water treatment tank. The water supply pump injects algae-containing water into the circulating well and enters the water treatment tank; the air bags in algae cells crack under high-pressure effect of the deep water of the circulating well so that the algae lose buoyancy to be easy to precipitate. A coagulant, the algae and other impurity grains collide in a reaction tank to be combined into larger floc grains so as to precipitate and be removed in a sedimentation basin. With the adoption of the method, the air bags of the algae are enabled to crack, the sedimentation speed is high and the removing effect is good; the algae cells are not damaged and water supply is safe; and the drug consumption and the energy consumption are low and the operation cost is low.
Description
technical field [0001] The present invention relates to a water treatment system and method for algae-containing water, in particular to a deep-water circulation enhanced coagulation-sedimentation algae-removal water treatment system and method, in which the algae-containing water is circulated through a deep-water area and then coagulated and precipitated. The invention relates to a water treatment device and method for removing algae in water, belonging to the technical field of water supply treatment, and is suitable for waterworks to remove algae and other turbidity substances with floating characteristics such as algae blooms. Background technique [0002] Bloom cyanobacteria is a difficult problem in drinking water treatment. There are air sacs in the cells of cyanobacteria bloom, which provide buoyancy for the algae, so that the algae cannot sink and are not easily removed by conventional coagulation sedimentation technology. Algae air sacs can resist the external pre...
Claims
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IPC IPC(8): C02F9/04C02F1/52
Inventor 丛海兵黄廷林
Owner YANGZHOU UNIV
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