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Countercurrent, copolymerizing and air-float process for purifying water and its equipment

A technology of copolymerization air flotation and countercurrent, which is applied in the direction of flotation water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., which can solve the problems of long time, large floor area and high equipment cost

Inactive Publication Date: 2003-02-19
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional water treatment process takes a long time and requires a mixing and flocculation unit, so it occupies a large area and the cost of the equipment is also high

Method used

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  • Countercurrent, copolymerizing and air-float process for purifying water and its equipment
  • Countercurrent, copolymerizing and air-float process for purifying water and its equipment
  • Countercurrent, copolymerizing and air-float process for purifying water and its equipment

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Embodiment Construction

[0022] Please refer to figure 1 , the flocculant enters the water pipe 1 from the dosing port 3 of the dosing pipe 2, and forms a mixed liquid with the water to be treated, and is stirred and mixed by the impeller rotation of the water inlet pump 4, and the mixed water flows downward through the water inlet 7 to be treated and enters the reverse flow Copolymerization air flotation reactor 8, its flow rate is displayed and controlled by flow meter 5 and water pump valve 6. The pressure dissolved air tank 13 enters the countercurrent copolymerization air flotation reactor 8 upwardly through the dissolved air water inlet pipe 9 and the dissolved air release device 10, and releases microbubbles. During the downward flow of the mixed water, the micro-flocs contact and flocculate with the micro-bubbles in the upward-flowing dissolved air water, and the formed copolymer utilizes the buoyancy of the bubbles to rise to the slag collection tank 16 at the top of the reactor 8 and then di...

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Abstract

A process for cleaning water includes mixing the flocculant with the water to be treated in water inlet pump, flocculating and reaction between air bubbles and floc in countercurrent copolymerizing reactor, flowing the water downward and the air upward, discharging the resultant water from bottom of reactor, and discharging dregs from top of reactor.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a countercurrent copolymerization air flotation water purification method and device. Background technique [0002] Dissolved air flotation as an efficient particle separation technology for water treatment began in the 1960s. After decades of development, it has been widely used in the treatment of low-temperature, low-turbidity and algae-rich water bodies. It is more effective than traditional sedimentation separation Better, higher load, and more economical pretreatment technology for granular filter media filtration process. With the deepening of research, workers engaged in water treatment have increasingly realized that dissolved air flotation is a relatively advanced technology, which not only has a high removal efficiency for colloidal substances in water, but also can remove humic acid natural organic matter , Algae pathogenic substances, etc. reach ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/24C02F1/52
Inventor 汤鸿霄郭瑾珑王毅力李大鹏
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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