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Municipal sewage purification process

A purification process, a technology for urban sewage, applied in the fields of adsorption water/sewage treatment, neutralized water/sewage treatment, oxidized water/sewage treatment, etc., can solve problems such as difficult treatment, and achieve the effect of reducing equipment costs

Inactive Publication Date: 2019-01-18
南京易洁环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it contains many pollutants such as heavy metals and microorganisms, which are very difficult to deal with

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A process for purifying urban sewage, the steps comprising:

[0024] a. Send the sewage into the sedimentation tank for preliminary precipitation, and clean up the sedimentation material at the bottom of the sedimentation tank; b. Recycle the upper layer of sewage from the sedimentation tank to the first-level sewage purification tank, adjust the pH value of the first-level sewage purification tank to 7, and carry out Stir for 20 minutes, add porous adsorbent while stirring, carry out precipitation, and put the sedimented material at the bottom of the first-level sewage purification layer into the sludge collection tank; c. Send the upper layer of sewage from the first-level sewage purification tank into the second-level sewage purification tank , through the air pump to expose ozone installed in the secondary sewage purification tank, while aerating, add oxidant, coagulant and flocculant, then let it stand for 5 hours, and finally put the sediment at the bottom of the s...

Embodiment 2

[0032] A process for purifying urban sewage, the steps comprising:

[0033] a. Send the sewage into the sedimentation tank for preliminary precipitation, and clean up the sedimentation material at the bottom of the sedimentation tank; b. Recycle the upper layer of sewage from the sedimentation tank to the first-level sewage purification tank, adjust the pH value of the first-level sewage purification tank to 8, and carry out Stir for 30 minutes, add porous adsorbent while stirring, carry out precipitation, and put the sedimented material at the bottom of the first-level sewage purification layer into the sludge collection tank; c. Send the upper layer of sewage from the first-level sewage purification tank into the second-level sewage purification tank , through the air pump to expose ozone installed in the secondary sewage purification tank, while aerating, add oxidant, coagulant and flocculant, then let it stand for 6 hours, and finally put the sediment at the bottom of the s...

Embodiment 3

[0041] A process for purifying urban sewage, the steps comprising:

[0042]a. Send the sewage into the sedimentation tank for preliminary precipitation, and clean up the sedimentation material at the bottom of the sedimentation tank; b. Recycle the upper layer of sewage from the sedimentation tank to the first-level sewage purification tank, adjust the pH value of the first-level sewage purification tank to 7.5, and carry out Stir for 25 minutes, add porous adsorbent while stirring, carry out precipitation, and put the sedimented material at the bottom of the first-level sewage purification layer into the sludge collection tank; c. Send the upper layer of sewage from the first-level sewage purification tank to the second-level sewage purification tank , through the air pump to expose ozone installed in the secondary sewage purification tank, while aerating, add oxidant, coagulant and flocculant, then let it stand for 5.5 hours, and finally put the sediment at the bottom of the ...

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PUM

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Abstract

The invention provides a municipal sewage purification process, wherein the order of adding various additives is reasonably planned to achieve the function of purifying domestic sewage. A distillationtower, an air flotation machine and other equipment are not used, and only a purification pool is used, thereby greatly reducing equipment cost. At the same time, solid precipitate in the sewage is continuously filtered, sieved, collected and treated in the process of sewage treatment. The municipal sewage purification process is reasonable in process, low in equipment investment, low in cost, and good in purification effect, and achieves effective purification treatment of liquid and solid substances in the sewage.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to an urban sewage purification process. Background technique [0002] Sewage, usually refers to certain polluted discharge water from domestic and production. Sewage mainly includes domestic sewage, industrial wastewater and initial rainwater. The main pollutants of sewage are pathogenic pollutants, oxygen-consuming pollutants, solid floating matter and solid particles, etc. The traditional process of sewage treatment can no longer meet the needs of modern production and life. The traditional urban sewage purification process needs to add many purifiers to the sewage, and it is accompanied by distillation and other processes. The steps required are complicated, the equipment is various, the treatment time is long, and the input cost is high. Moreover, many solid sediments will be produced during the sewage treatment process. These solid sediments have high water content...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F11/00
CPCC02F1/001C02F1/28C02F1/50C02F1/52C02F1/66C02F1/72C02F1/78C02F9/00C02F11/00C02F11/008C02F2001/007C02F2301/08C02F2303/02C02F2303/04C02F2303/06
Inventor 韩正刚
Owner 南京易洁环保科技有限公司
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