Sewage treatment method

A sewage treatment method and sewage technology, applied in water/sewage treatment, sludge treatment, neutralized water/sewage treatment, etc., can solve problems such as poor water purification effect, achieve fast flocculation speed, high water yield, and easy filtration Effect

Inactive Publication Date: 2018-11-23
SICHUAN JIANYUAN ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to make the sewage treatment effect better, the two methods need to be used in combination. The sewage treated by the current sewage treatment method has not yet reached the standard in terms of pH value, particle number and disinfection, and the water purification effect is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The invention provides a sewage treatment method, which is characterized in that it comprises the following steps:

[0021] Step A: Pass the sewage into the primary filter for primary filtration, and use a sludge dewatering machine to dehydrate the filter residue. A fine grid is installed above the primary filter, which can perform a preliminary screening of the water quality. filter;

[0022] Step B: Pump the sewage in the primary filter tank and the sewage after the filter residue is released into the settling tank, and add flocculant into the settling tank, and let it stand for a period of time;

[0023] Step C: pump the sewage in the sedimentation tank into the aeration tank for aeration, and add a pH regulator in the aeration tank and stir continuously, so that the pH value of the water body reaches the range of 6.8-7.6;

[0024] Step D: Pump the sewage in the aeration tank into the disinfection tank, add disinfectant into the disinfection tank and stir continuous...

Embodiment 2

[0027] The invention provides a sewage treatment method, which is characterized in that it comprises the following steps:

[0028] Step A: Pass the sewage into the primary filter for primary filtration, and use a sludge dewatering machine to dehydrate the filter residue. A fine grid is installed above the primary filter, which can perform a preliminary screening of the water quality. filter;

[0029] Step B: Pump the sewage in the primary filter tank and the sewage from the filter residue into the sedimentation tank, and add flocculant to the sedimentation tank, and let it stand for a period of time. The flocculant is PAFCS and PAM. PAFCS combines PAC and FeCl3 The advantages of the flocculant, which enhances the turbidity removal effect, the mixed use of the two flocculants greatly enhances the specificity of the flocs, and the flocculation speed is fast;

[0030] Step C: Pump the sewage in the sedimentation tank into the aeration tank for aeration, and add a pH regulator in...

Embodiment 3

[0034] The invention provides a sewage treatment method, which is characterized in that it comprises the following steps:

[0035] Step A: Pass the sewage into the primary filter for primary filtration, and use a sludge dewatering machine to dehydrate the filter residue. A fine grid is installed above the primary filter, which can perform a preliminary screening of the water quality. filter;

[0036] Step B: Pump the sewage in the primary filter tank and the sewage from the filter residue into the sedimentation tank, and add flocculant to the sedimentation tank, and let it stand for a period of time. The flocculant is PAFCS and PAM. PAFCS combines PAC and FeCl3 The advantages of the flocculant, which enhances the turbidity removal effect, the mixed use of the two flocculants greatly enhances the specificity of the flocs, and the flocculation speed is fast;

[0037] Step C: Pump the sewage in the sedimentation tank into the aeration tank for aeration, and add a pH regulator in...

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PUM

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Abstract

The invention relates to the technical field of sewage treatment and specifically relates to a sewage treatment method which comprises the following steps: step A, pumping sewage into a primary filtering tank to be primarily filtered and utilizing a sludge dewatering machine to dewater filter residues; step B, pumping sewage in the primary filtering tank and sewage with the filter residues removedinto a sedimentation tank, adding a flocculating agent into the sedimentation tank and standing for a period; step C, putting sewage in the sedimentation tank into an aerating tank to be aerated, adding a PH adjusting agent into the aerating tank and stirring discontinuously to make a PH value of a water body reach in a range of 6.8 to 7.6; step D, pumping sewage in the aerating tank into a disinfecting tank, adding disinfectants into the disinfecting tank, stirring discontinuously, stirring for 5 to 10 minutes and standing for 10 to 20 minutes; step E, pumping sewage in the disinfecting tankinto an activated carbon filtering tank to be filtered again. A PH value of the treated sewage is moderate, the water body is treated by disinfection treatment and activated carbon filtering treatment, sewage treatment quality is better, and furthermore, a technology is simple.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment method. Background technique [0002] According to the classification of sewage sources, sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. Production sewage includes industrial sewage, agricultural sewage and medical sewage, etc., while domestic sewage is the sewage produced in daily life, which refers to the complex mixture of various forms of inorganic and organic substances. With the continuous development of productivity and the continuous improvement of people's living standards , the amount of sewage produced is increasing year by year, so the treatment of sewage is imminent. Sewage treatment methods include physical treatment and chemical treatment. In order to make the sewage treatment effect better, the two methods need to be used in combination. The pH value, the number of particulate matt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08
CPCC02F9/00C02F1/001C02F1/283C02F1/50C02F1/5236C02F1/56C02F1/66C02F7/00C02F11/121
Inventor 徐斌斌
Owner SICHUAN JIANYUAN ENERGY SAVING TECH CO LTD
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