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A flocculation device capable of adjusting the effect of flocculation reaction and a method of using it in combination with a phosphorus removal agent

A flocculation device and adjustable technology, applied in chemical instruments and methods, flocculation / sedimentation water / sewage treatment, water / sludge / sewage treatment, etc. and other problems, to achieve the effect of preventing the risk of eutrophication, large flakes, and efficient and rapid removal

Active Publication Date: 2021-11-23
安徽红太阳生物化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the characteristics of the chemical phosphorus removal agent and the equipment parameters of the flocculation device do not match, the agent cannot exert the best effect. In addition, when the nature of the sewage changes, it is difficult for the existing flocculation device to adjust the equipment parameters to adapt to this change.

Method used

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  • A flocculation device capable of adjusting the effect of flocculation reaction and a method of using it in combination with a phosphorus removal agent
  • A flocculation device capable of adjusting the effect of flocculation reaction and a method of using it in combination with a phosphorus removal agent
  • A flocculation device capable of adjusting the effect of flocculation reaction and a method of using it in combination with a phosphorus removal agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The flow rate of urban black and odorous wastewater is 6m 3 / h, the total phosphorus content is 2.6mg / L, the stirring speeds of the first flocculation tank 11, the second flocculation tank 12, and the fourth flocculation tank 14 are respectively 150r / min, 120r / min, 60r / min, and the first flocculation tank 11 In the sodium polyacrylate (weight-average molecular weight 5000) consumption is 3mg / L; In the second flocculation tank 12, polyaluminum chloride and polydimethyldiallyl ammonium chloride (intrinsic viscosity is 0.82dL / g) consumption are respectively 50 mg / L, 5 mg / L; the dosage of anionic polyacrylamide (viscosity-average molecular weight: 6.6 million) in the fourth flocculation tank 14 is 0.5 mg / L. Changing the residence time in different flocculation tanks, the treatment effect is shown in the table below.

[0053] Table 1

[0054]

Embodiment 2

[0056] The sodium polyacrylate added in the first flocculation tank 11 has a weight average molecular weight of 300,000, and other conditions are the same as in Example 1. The processing effect is shown in the table below:

[0057] Table 2

[0058]

Embodiment 3

[0060] Urban sewage flow rate is 6m 3 / h, the total phosphorus content is 8.7mg / L, change the residence time in different flocculation ponds, the first flocculation pond 11, the second flocculation pond 12, the 4th flocculation pond 14 stirring speeds are respectively 90r / min, 90r / min, 90r / min, sodium polyacrylate (weight-average molecular weight 8000) consumption is 5mg / L in the first flocculation tank 11; Number is 0.82dL / g) dosage is respectively 120mg / L, 8mg / L; Anionic polyacrylamide (viscosity-average molecular weight is 6,600,000) dosage is respectively 1mg / L in the 4th flocculation pond 14. The processing effect is as follows:

[0061] table 3

[0062]

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PUM

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Abstract

The invention discloses a flocculation device capable of adjusting the flocculation reaction effect and a method for using it in combination with a phosphorus removal agent. Four partitions are vertically arranged in the flocculation device, and the tank body is divided into a first flocculation pool, a second flocculation pool, and a third flocculation pool. The flocculation pool, the fourth flocculation pool and the fifth pool; the partitions can be moved to adjust the volume of the five pools; the first flocculation pool, the second flocculation pool and the fourth flocculation pool are equipped with adjustable speed mixers. Add polyacrylic acid or sodium polyacrylate to the first flocculation tank, add inorganic flocculant and polydimethyldiallylammonium chloride to the second flocculation tank, and add anionic polyacrylamide to the fourth flocculation tank. The present invention regulates the flocculation reaction and achieves the best effect of flocculation phosphorus removal by adjusting the two main factors of residence time and stirring speed, and the device and the medicament are used together.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a flocculation device capable of adjusting the flocculation reaction effect and a method for using it in combination with a phosphorus removal agent. Background technique [0002] Coagulants can reduce the turbidity and chromaticity of sewage, and remove various high molecular substances, organic substances, certain heavy metal poisons and radioactive substances, etc. Putting some kind of chemical agent into the sewage, after destabilizing the colloidal suspended particles or milky pollutants that are difficult to settle in the water, they collide with each other and aggregate or aggregate and overlap to form larger particles or flocs, so that Pollutants are more easily removed by natural sinking or floating. This process is flocculation reaction. In sewage treatment, flocculation reaction is a very important link, and its perfection directly affects the eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/5236C02F1/5281C02F1/56
Inventor 邵赛张乐平黄信波王洁蓉邵颖赵彩凤郭峰张勇谢洪科李宏告
Owner 安徽红太阳生物化学有限公司
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