Wastewater advanced treatment process adopting flocculation precipitation method

A technology of advanced treatment and precipitation, which is applied in the fields of flocculation/sedimentation water/sewage treatment, multi-stage water treatment, water/sewage treatment, etc., to achieve the effect of simple treatment operation, high market application value, and energy saving and emission reduction.

Inactive Publication Date: 2020-09-08
安徽洋森环保节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of wastewater advanced treatment technology of flocculation sedimentation method, through, solve existing problem

Method used

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  • Wastewater advanced treatment process adopting flocculation precipitation method

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Effect test

specific Embodiment 1

[0025] Such as figure 1 Shown, a kind of wastewater advanced treatment process of flocculation sedimentation method, comprises the following steps:

[0026] Step 1, the waste water is filtered through the grille and the slanted filter in turn, and the suspended matter in the waste water is intercepted by the mesh holes of the slanted screen;

[0027] Step 2, fill the wastewater obtained in Step 1 with ozone, and fully stir the wastewater; the amount of ozone filled is 300 mg / L, and the stirring time is 15 minutes; then the wastewater is fully exposed to the sun; exposed to the sun for 24 hours;

[0028] Step 3, put the wastewater obtained in step 2 into activated carbon, and fully stir the wastewater; the input amount of activated carbon is 500g / L, and the stirring time is 15min; then the wastewater is sent into the filter, and the filter is used to intercept the waste water. Activated carbon;

[0029] Step 4, send the wastewater obtained in step 3 into the primary flocculat...

specific Embodiment 2

[0037] Such as figure 1 Shown, a kind of wastewater advanced treatment process of flocculation sedimentation method, comprises the following steps:

[0038] Step 1, the waste water is filtered through the grille and the slanted filter in turn, and the suspended matter in the waste water is intercepted by the mesh holes of the slanted screen;

[0039] Step 2, fill the wastewater obtained in Step 1 with ozone, and fully stir the wastewater; the amount of ozone filled is 300 mg / L, and the stirring time is 22.5 minutes; then the wastewater is fully exposed to the sun; exposed to the sun for 36 hours;

[0040] Step 3: Put the wastewater obtained in Step 2 into activated carbon, and fully stir the wastewater; the input amount of activated carbon is 500g / L, and the stirring time is 22.5min; then send the wastewater into the filter, and use the filter to intercept the waste water activated carbon;

[0041] Step 4, send the wastewater obtained in step 3 into the first-level flocculat...

specific Embodiment 3

[0049] Such as figure 1 Shown, a kind of wastewater advanced treatment process of flocculation sedimentation method, comprises the following steps:

[0050] Step 1, the waste water is filtered through the grille and the slanted filter in turn, and the suspended matter in the waste water is intercepted by the mesh holes of the slanted screen;

[0051] Step 2, fill the wastewater obtained in Step 1 with ozone, and fully stir the wastewater; the amount of ozone filled is 300 mg / L, and the stirring time is 30 minutes; then fully expose the wastewater to the sun; expose to the sun for 48 hours;

[0052] Step 3, put the wastewater obtained in step 2 into activated carbon, and fully stir the wastewater; the input amount of activated carbon is 500g / L, and the stirring time is 30min; then the wastewater is sent into the filter, and the filter is used to intercept the waste water. Activated carbon;

[0053] Step 4, send the wastewater obtained in step 3 into the primary flocculation t...

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Abstract

The invention discloses a wastewater advanced treatment process adopting a flocculation precipitation method, and belongs to the field of sewage treatment. The process comprises the following steps: filtering the wastewater through a grid and a twill filter screen in sequence; introducing ozone into the wastewater, and fully stirring the wastewater; adding activated carbon into the wastewater, fully stirring the wastewater, and filtering; feeding the wastewater into a primary flocculation tank, adding a polysilicate aluminum ferric flocculant into the primary flocculation tank, and finally carrying out solid-liquid separation to obtain a supernatant and a flocculation precipitate; feeding the supernatant into a secondary flocculation tank, adding polyacrylamide into the secondary flocculation tank, and finally performing solid-liquid separation to obtain a supernatant and a flocculation precipitate; and carrying out ultrafiltration, and introducing the supernatant into a water collecting tank. The wastewater is subjected to deep treatment based on the flocculation precipitation method, such that the wastewater treatment effect can be effectively improved; and the process has advantages of simple treatment operation, low cost, no by-product generation and the like, and is suitable for promotion and application.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a flocculation-sedimentation wastewater advanced treatment process. Background technique [0002] In recent years, with the frequent occurrence of various water pollution incidents and the improvement of sewage discharge standards, higher requirements have been put forward for enterprises. How to make better use of sewage resources, reduce sewage discharge, and realize recycling has become an important task for enterprises. important task. [0003] The reuse of industrial wastewater after advanced treatment is an important way to achieve water saving, emission reduction and control of water pollution. The water quality of industrial wastewater is more complex with the different components of the production process and production method. The quality and quantity of most industrial wastewater varies greatly, the salt content is high, and some of them contain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
CPCC02F1/001C02F1/283C02F1/5236C02F1/56C02F1/66C02F1/78C02F9/00C02F2301/08Y02A20/212
Inventor 杨磊程松
Owner 安徽洋森环保节能科技有限公司
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