Sewage physical-chemical treatment method

A treatment method and sewage treatment technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as inability to meet the requirements of effluent water quality, and achieve easy reprocessing and low investment The effect of small, low water content

Inactive Publication Date: 2012-05-23
陈学明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method cannot adapt to higher effluent water quality requirements.

Method used

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  • Sewage physical-chemical treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, a kind of sewage physical and chemical treatment method is characterized in that comprising the steps:

[0034] A: In the water collection well, the conventional grid filter for sewage treatment is used to remove the coarse residue in the sewage and then use the sewage pump to send the sewage to the sedimentation tank;

[0035] B: Add 60ppm of aluminum-iron salt dephosphorization agent, 9ppm of modified china clay adsorbent to the inlet pipeline of the sewage pump, and 1.5ppm of polyacrylamide organic polymer flocculant to the outlet pipeline of the sewage pump.

[0036] C: After 20 minutes of sedimentation in the sedimentation tank, solid-liquid separation is realized;

[0037] D: The liquid sewage after the solid-liquid separation is completed through precipitation, enters the ammonia nitrogen absorption tower to remove ammonia nitrogen;

[0038] E: Sewage that has been deammonized and nitrogen-depleted is discharged after being sterilized by ultraviole...

Embodiment 2

[0041] Embodiment 2, a kind of sewage physical and chemical treatment method is characterized in that comprising the following steps:

[0042] A: In the water collection well, the conventional grid filter for sewage treatment is used to remove the coarse residue in the sewage and then use the sewage pump to send the sewage to the sedimentation tank;

[0043] B: Add 80ppm of aluminum-iron salt dephosphorization agent, 11ppm of modified china clay adsorbent to the inlet pipeline of the sewage pump, and 2.5ppm of polyacrylamide organic polymer flocculant to the outlet pipeline of the sewage pump;

[0044] C: After 20 minutes of sedimentation in the sedimentation tank, solid-liquid separation is realized;

[0045] D: The liquid sewage after the solid-liquid separation is completed through precipitation, enters the ammonia nitrogen absorption tower to remove ammonia nitrogen;

[0046] E: After the ammonia nitrogen has been removed from the sewage, first adjust the PH value to the ...

Embodiment 3

[0048] Embodiment 3, a kind of sewage physical and chemical treatment method is characterized in that comprising the following steps:

[0049] A: In the water collection well, the conventional grid filter for sewage treatment is used to remove the coarse residue in the sewage and then use the sewage pump to send the sewage to the sedimentation tank;

[0050] B: Add 70ppm of aluminum-iron salt dephosphorization agent, 10ppm of modified china clay adsorbent to the inlet pipeline of the sewage pump, and 2ppm of polyacrylamide organic polymer flocculant to the outlet pipeline of the sewage pump;

[0051] C: After 20 minutes of sedimentation in the sedimentation tank, solid-liquid separation is realized;

[0052] D: The liquid sewage after the solid-liquid separation is completed through precipitation, enters the ammonia nitrogen absorption tower to remove ammonia nitrogen;

[0053] E: Sewage that has been deammonized and nitrogen-depleted is discharged after being sterilized by ult...

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Abstract

The invention discloses a sewage physical-chemical treatment method, which comprises the following steps of: filtering sewage by gratings; adding an aluminum molysite dephosphorization agent and a modified china clay adsorbent on an inlet pipeline of a sewage pump sequentially, and adding a polyacrylamide organic high-molecule flocculating agent on an outlet pipeline of the sewage pump; performing solid and liquid separation in a sedimentation basin; adjusting the pH value of the sewage by using an inorganic acid or alkali solution after the sewage enters an ammonia nitrogen absorption tower and is subjected to ammonia nitrogen removal; and sterilizing the sewage by ultraviolet rays and discharging the treated sewage. The method is lower in investment of base facilities; the base facilities are easy to maintain and treat; the degree of a sewage treatment effect cannot be fluctuated greatly under the influence of factors, such as temperature, pollutants in the sewage, the sewage concentration, the pH value of the sewage and the like; the environment is protected because a bad smell is not produced during dephosphorization and ammonia nitrogen removal; and the dehydrated sludge has low water content and high heat value, and is easy to retreat.

Description

【Technical field】 [0001] The invention relates to multi-stage treatment of water, waste water or sewage, especially a method for comprehensive treatment of sewage by physical and chemical methods. 【Background technique】 [0002] Under the atmosphere of global commitment to environmental protection, sewage treatment has become an emerging industry, and it is in the same important position as the production of tap water, water supply, and drainage industries. Under certain conditions, the water body has self-purification ability. With the increase of pollutants discharged into the water, which exceeds the self-purification ability of the water body, the ecological environment required for the self-regulation of the water body is out of balance, and the water quality will deteriorate. Sewage treatment is the process of restoring the environment required for water bodies to perform their self-purification functions. Too much organic matter in the water body: microorganisms in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F11/12
Inventor 陈学明
Owner 陈学明
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