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Multistage sewage purification system and sewage purification technology

A sewage purification and multi-stage purification technology, which is applied in water/sewage treatment, oxidized water/sewage treatment, multi-stage water/sewage treatment, etc., can solve the problems of long treatment time, high investment cost, and various equipment, and achieve the investment cost Low cost, reduced transportation costs, and simple equipment

Inactive Publication Date: 2019-03-29
宁波联创同宇环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional multi-stage sewage purification system and sewage purification process need to add many purifiers to the sewage, and it is accompanied by distillation and other processes. The steps required are complicated, the equipment is numerous, the treatment time is long, and the input cost is high.

Method used

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  • Multistage sewage purification system and sewage purification technology
  • Multistage sewage purification system and sewage purification technology
  • Multistage sewage purification system and sewage purification technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A sewage purification process, the steps comprising:

[0035] a. Send the sewage into the sedimentation tank 1 for preliminary sedimentation, and clean up the settled substances at the bottom of the sedimentation tank 1;

[0036] b. Send the upper layer sewage of the sedimentation tank 1 to the first-level purification tank 2 through the water pump 7, adjust the pH value of the first-level purification tank 2 to 8, stir for 30 minutes, add porous adsorbent while stirring, carry out precipitation, and clean up a The precipitated matter at the bottom of the first-grade sewage purification layer, and the porous adsorbent is washed burnt cinder;

[0037]C, the upper floor sewage of the primary purification pond 2 is sent into the secondary purification pond 3 by the water pump 7, and is exposed to ozone in the secondary purification pond 3 by the air pump 32 and the aeration pipe 31, while aeration, add oxidant, Coagulant and flocculant, then stand still for 24 hours to pr...

Embodiment 2

[0045] A sewage purification process, the steps comprising:

[0046] a. Send the sewage into the sedimentation tank 1 for preliminary sedimentation, and clean up the settled substances at the bottom of the sedimentation tank 1;

[0047] b. Send the upper layer sewage of the sedimentation tank 1 to the primary purification tank 2 through the water pump 7, adjust the pH value of the primary purification tank 2 to 7, stir for 20 minutes, add porous adsorbent while stirring, carry out precipitation, and clean up a The precipitated matter at the bottom of the first-grade sewage purification layer, and the porous adsorbent is washed burnt cinder;

[0048] C, the upper floor sewage of the primary purification pond 2 is sent into the secondary purification pond 3 by the water pump 7, and is exposed to ozone in the secondary purification pond 3 by the air pump 32 and the aeration pipe 31, while aeration, add oxidant, coagulant and flocculant, then stand still for 12 hours to settle, a...

Embodiment 3

[0055] A sewage purification process, the steps comprising:

[0056] a. Send the sewage into the sedimentation tank 1 for preliminary sedimentation, and clean up the settled substances at the bottom of the sedimentation tank 1;

[0057] b. Send the upper layer sewage of the sedimentation tank 1 to the primary purification tank 2 through the water pump 7, adjust the pH value of the primary purification tank 2 to 7.5, stir for 25 minutes, add porous adsorbent while stirring, carry out precipitation, and clean up a The precipitated matter at the bottom of the first-grade sewage purification layer, and the porous adsorbent is washed burnt cinder;

[0058] C, the upper floor sewage of the primary purification pond 2 is sent into the secondary purification pond 3 by the water pump 7, and is exposed to ozone in the secondary purification pond 3 by the air pump 32 and the aeration pipe 31, while aeration, add oxidant, coagulant and flocculant, and then stand still for 18 hours to set...

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Abstract

The invention provides a multistage sewage purification system and a sewage purification technology. The sewage purification system comprises a sedimentation tank, a first-stage purification tank, a second-stage purification tank, a third-stage purification tank and a fourth-stage purification tank, and water pumps and water pipelines are arranged among the sedimentation tank, the first-stage purification tank, the second-stage purification tank, the third-stage purification tank and the fourth-stage purification tank in order to convey a liquid; the sedimentation tank is a water pool structure with an open upper end, and an inclined filter tank is arranged at the opening; the main structure of each of the first-stage purification tank, the second-stage purification tank, the third-stage purification tank and the fourth-stage purification tank is a side tank body with an open upper end, a stirring device is arranged in each of the first-stage purification tank, the second-stage purification tank and the third-stage purification tank, the second-stage purification tank is also provided with an aeration tube, the aeration tube is connected with a gas pump, and the gas outlet of the aeration tube is located at the lower part in the tank body. The multistage sewage purification system has the advantages of simple devices and low construction cost, and the sewage purification technology using the purification system has the advantages of reasonable steps, good purification effect, and suitableness for being generally promoted.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a multi-stage sewage purification system and a 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. According to the source of sewage, sewage can be divided into four categories. The first category: Industrial wastewater comes from manufacturing, mining and industrial production activities, including runoff live leachate from industrial or commercial storage and processing, and other wastewater that is not domestic sewage. The second category: domestic sewage from residences, office buildings, institutions or similar sewage; sanitary sewage; sewer sewage, incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
CPCC02F1/283C02F1/281C02F1/52C02F1/56C02F1/72C02F7/00
Inventor 邵远征
Owner 宁波联创同宇环保科技有限公司
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