A kind of copolymerization floating sink and water purification method

A technology of copolymerization and air flotation tank, which is applied in chemical instruments and methods, flotation water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. Low adhesion efficiency and other problems, to achieve the effect of prolonging the collision adhesion time, improving adhesion efficiency, and strengthening stability

Active Publication Date: 2017-12-15
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the deficiencies of the above technologies, the present invention provides a copolymerization floating-sinking tank and a water purification method. In the copolymerizing floating-sinking tank, the reflux high-pressure dissolved air water is added three times, and the flocculation process is organically combined to create micro-bubbles and flocs. environment, the microbubbles adhere to the middle of the flocs, and the microbubbles participate in the coagulation process to play a coagulation effect. For problems such as low particle adhesion efficiency, unsatisfactory capture effect, and unstable adhesion of foam and floc, the coagulation, air flotation, and sedimentation processes are organically combined and integrated to deal with high algae, low turbidity, and sudden high turbidity. Reservoir water quality has outstanding advantages

Method used

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  • A kind of copolymerization floating sink and water purification method

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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, the copolymerization floating-settling tank of the present invention includes: a multi-channel folded-plate copolymerized flocculation tank for realizing coagulation and copolymerization of flocs and microbubbles; Separation of flocs from water flow, settling of non-floatable settling flocs; and, a dissolved air system connected to the water outlet of the floating and sinking tank, the dissolved air system is connected with the multi-channel folded plate copolymerization flocculation tank and the floating and sinking tank The connection provides backflow high-pressure dissolved air water for the multi-channel folded plate copolymerization flocculation tank and the floating sink tank.

[0034] The multi-channel folded plate copolymerization flocculation tank includes a different wave folded plate copolymerization flocculation tank 2 connected sequentially along the water flow direction, a same folded plate copolymerization flocculation tank 3 a...

Embodiment 2

[0041] In a certain reservoir, the high algae season in summer presents the characteristics of high algae water quality, and its algae content is 5.0×10 7 unit / L, the turbidity is 15NTU.

[0042] Utilize the copolymerization floating-settling pond described in embodiment 1 to purify the water of this reservoir, it comprises steps as follows:

[0043] S1. Add coagulant polyaluminum ferric chloride (PAFC), the dosage is 4.0mg / L (as Al 3+Inlet pipe 1 enters the multi-channel folded plate copolymerization flocculation tank, and the water flow sequentially flows through the different wave folded plate copolymerization flocculation tank 2, the same folded plate copolymerization flocculation tank 3 and the flat plate folded plate copolymerization flocculation tank 4, and the different wave folded plate copolymerization flocculation tank 2. The water velocity in the co-polymerization flocculation tank 3 of the same corrugated plate and the co-polymerization flocculation tank 4 of the...

Embodiment 3

[0047] In a certain reservoir, in winter, it presents the characteristics of low temperature and low turbidity water quality, and its algae content is 5.0×10 5 unit / L, the turbidity is 3.5NTU.

[0048] Utilize the copolymerization floating-settling pond described in embodiment 1 to purify the water of this reservoir, and the difference with embodiment 2 is:

[0049] In step S1, the dosage of coagulant polyaluminum ferric chloride (PAFC) is 5.0mg / L (as Al 3+ count).

[0050] The water after the above treatment has a total algae content of 2.0×10 5 / L, the turbidity reaches 0.75NTU.

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Abstract

The copolymerization floating-settling tank of the present invention includes a multi-channel folded-plate copolymerization flocculation tank for realizing coagulation and copolymerization of flocs and micro-bubbles; Separation, sedimentation of sedimentary flocs that cannot be air-floated; and a dissolved air system connected to the water outlet of the floating and sinking tank. The flocculation tank and the floating sink tank provide backflow high-pressure dissolved air water. The copolymerization floating-sinking tank will add backflow high-pressure dissolved air water three times, and organically combine it with the flocculation process to create a copolymerization environment for micro-bubbles and flocs. Problems such as low adhesion efficiency, unsatisfactory capture effect, and unstable adhesion of foam flocs make the coagulation, air flotation, and sedimentation processes organically combined and integrated to deal with high algae, low turbidity, and sudden high turbidity in reservoir water quality Has outstanding advantages.

Description

technical field [0001] The invention relates to a copolymerization floating sink and a water purification method, belonging to the technical field of water treatment. Background technique [0002] At present, the problem of reservoir water pollution is becoming more and more prominent, among which algae pollution is particularly serious. At present, the reservoir water tends to have the characteristics of high algae in summer, low temperature and low turbidity in winter, and high turbidity in summer rainy season. As the degree of eutrophication of water sources increases year by year, algal blooms are becoming more and more serious, especially in spring and autumn when the temperature changes greatly, algae outbreaks occur from time to time, posing a certain threat to the operation of water plants and water supply safety. The density of algae is small, and it is difficult to effectively remove it by traditional coagulation, sedimentation, and filtration processes, which bri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/24C02F1/52
CPCC02F1/24C02F1/5281
Inventor 王永磊刘宝震张克峰王宁王珊杜振忠贾瑞宝宋武昌李儒存孙中训李佳宁王萌萌
Owner SHANDONG JIANZHU UNIV
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