Color removing water treatment method

A water purification and clean water technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve problems such as increased chroma and non-compliance, and achieve The effect of large alum flowers and easy precipitation treatment

Inactive Publication Date: 2015-10-21
毛允明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, magnetic resin is usually used to remove ions so that the chroma reaches the standard; the chroma of the water that has just been treat...

Method used

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  • Color removing water treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 Shown, a kind of decolorization water purification treatment method comprises steps:

[0028] 1) Introduce raw water to be treated into the raw water pipeline, and add polyaluminum chloride flocculant to the pipeline mixer installed on the raw water pipeline, and mix evenly; among them, the dosage of polyaluminum chloride flocculant is 100 mg / L;

[0029] 2) After mixing, it is transported to the flocculation tank through pipelines for full reaction to form alum flowers. As the reaction progresses, the alum flowers become larger and larger. After 40 min of flocculation reaction, large alum flowers are formed in the flocculation tank;

[0030] 3) Step 2) After fully reacting, the water and alum flowers in the flocculation tank are evenly distributed to the sedimentation tank through the water distribution tank;

[0031] 4) After passing through the water distribution tank for uniform water distribution, water and alum flowers enter the sedimentation ta...

Embodiment 2

[0036] Such as figure 1 Shown, a kind of decolorization water purification treatment method comprises steps:

[0037] 1) Introduce raw water to be treated into the raw water pipeline, and add polyaluminum chloride flocculant to the pipeline mixer installed on the raw water pipeline, and mix evenly; among them, the dosage of polyaluminum chloride flocculant is 110 mg / L;

[0038] 2) After mixing, it is transported to the flocculation tank through pipelines for full reaction to form alum flowers. As the reaction progresses, the alum flowers become larger and larger. After 45 minutes of flocculation reaction, large alum flowers are formed in the flocculation tank;

[0039] 3) Step 2) After fully reacting, the water and alum flowers in the flocculation tank are evenly distributed to the sedimentation tank through the water distribution tank;

[0040] 4) After passing through the water distribution tank for uniform water distribution, water and alum flowers enter the sedimentatio...

Embodiment 3

[0045] Such as figure 1 Shown, a kind of decolorization water purification treatment method comprises steps:

[0046] 1) Put the raw water to be treated into the raw water pipeline, and add polyaluminum chloride flocculant to the pipeline mixer installed on the raw water pipeline, and mix evenly; among them, the dosage of polyaluminum chloride flocculant is 90 mg / L;

[0047] 2) After mixing, it is transported to the flocculation tank through pipelines for full reaction to form alum flowers. As the reaction progresses, the alum flowers become larger and larger. After 40 min of flocculation reaction, large alum flowers are formed in the flocculation tank;

[0048] 3) Step 2) After fully reacting, the water and alum flowers in the flocculation tank are evenly distributed to the sedimentation tank through the water distribution tank;

[0049] 4) After passing through the water distribution tank for uniform water distribution, water and alum flowers enter the sedimentation tank ...

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Abstract

The invention discloses a color removing water treatment method, and belongs to the technical field of water treatment. The color removing water treatment method comprises the following steps: adding an aluminum flocculating agent into raw water for flocculation reaction, wherein the aluminum flocculating agent absorbs or reacts with materials generating chromaticity in the raw water to form alum floc; removing the alum floc through precipitation and filtering; filtering with activated carbon, so as to improve the quality of water. According to the method, color of surface water with a certain chromaticity is removed completely with the aluminum flocculating agent of which the cost is very low, wherein the chromaticity is caused by rotted leaves, and is 250 or higher. Treated according to the method, the chromaticity is reduced to 10 or lower. The color of water treated according to the method does not change even when water is placed for three months, and the chromaticity is still 10 or lower, and the water quality meets the standard requirement. According to the method, as the proper flocculating agent is adopted to remove color of low-temperature low-turbidity raw water, the alum floc generated after flocculation is large and easy to be treated through precipitation.

Description

technical field [0001] The invention relates to the technical field of water purification treatment, in particular to a water purification treatment method for decolorizing low-temperature and low-turbidity raw water. Background technique [0002] Rotting leaves can cause certain shades of color in surface raw water. In the prior art, magnetic resin is usually used to remove ions so that the chroma reaches the standard; the chroma of the water that has just been treated with the magnetic resin reaches the standard, but after being placed for 12 hours after the treatment, the chroma increases to more than 50; not to standard. [0003] Therefore develop a kind of water purification process that fundamentally removes color is a problem demanding prompt solution. Contents of the invention [0004] The object of the present invention is to provide a decolorization and water purification treatment method specially used for surface raw water showing a certain chroma due to rott...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F9/04
Inventor 李健栾好峰赵生华刘娟娟金文
Owner 毛允明
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