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Novel municipal sewage treatment method

A technology of urban sewage and treatment methods, applied in water/sewage treatment, biological water/sewage treatment, light water/sewage treatment, etc., can solve the problems of urban sewage C-N ratio imbalance, achieve good effluent quality, and solve C-N ratio imbalance , fast processing effect

Inactive Publication Date: 2018-08-03
北京华禹清源水务科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of the invention can effectively solve the problem of unbalanced urban sewage C-N ratio, and has fast, high efficiency and good effect on sewage treatment

Method used

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  • Novel municipal sewage treatment method

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Embodiment 1

[0026] The present embodiment provides a novel urban sewage treatment method, comprising the following steps:

[0027] (1) Add suspended matter adsorbent in sewage, carry out adsorption treatment 2h; Described adsorbent is the mixture of ferric hydroxide colloid and aluminum hydroxide colloid according to mass ratio 1:1 composition, described adsorbent and sewage to be treated The mass ratio is 1:100;

[0028] (2) Adjust the pH of the sewage after the adsorption treatment in step (1) to 6, then add hydrogen peroxide and sodium pyrosulfate with a concentration of 3wt%, and then use 300nm ultraviolet light irradiation for 60min; the addition of the hydrogen peroxide accounts for 1% of the mass of the sewage after the adsorption treatment, and the addition of the sodium pyrosulfate accounts for 0.05% of the mass of the sewage after the adsorption treatment;

[0029] (3) Add treatment agent to the sewage after ultraviolet light irradiation, described treatment agent is nano ferri...

Embodiment 2

[0033] The present embodiment provides a novel urban sewage treatment method, comprising the following steps:

[0034] (1) add suspended matter adsorbent in sewage, carry out adsorption treatment 8h; Described adsorbent is the mixture that ferric hydroxide colloid and aluminum hydroxide colloid form according to mass ratio 1:2, described adsorbent and sewage to be treated The mass ratio is 1:500;

[0035] (2) Adjust the pH of the sewage after the adsorption treatment in step (1) to 8, then add hydrogen peroxide and sodium pyrosulfate with a concentration of 30wt%, and then use 400nm ultraviolet light irradiation for 30min; the addition of the hydrogen peroxide accounts for 10% of the mass of the sewage after the adsorption treatment, and the addition of the sodium pyrosulfate accounts for 0.2% of the mass of the sewage after the adsorption treatment;

[0036] (3) Add treatment agent to the sewage after ultraviolet light irradiation, described treatment agent is nano ferric ox...

Embodiment 3

[0040] The present embodiment provides a novel urban sewage treatment method, comprising the following steps:

[0041] (1) Add suspended matter adsorbent in sewage, carry out adsorption treatment 5h; Described adsorbent is the mixture of ferric hydroxide colloid and aluminum hydroxide colloid according to mass ratio 2:1 composition, described adsorbent and sewage to be treated The mass ratio is 1:300;

[0042] (2) Adjust the pH of the sewage after the adsorption treatment in step (1) to 7, then add hydrogen peroxide and sodium pyrosulfate with a concentration of 16wt%, and then use 350nm ultraviolet light irradiation for 45min; the addition of the hydrogen peroxide accounts for 5% of the mass of the sewage after the adsorption treatment, and the addition of the sodium pyrosulfate accounts for 0.12% of the mass of the sewage after the adsorption treatment;

[0043] (3) Add treating agent to the sewage after ultraviolet light irradiation, described treating agent is nano ferric...

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Abstract

The invention relates to a novel municipal sewage treatment method. The method comprises the following steps: firstly, performing adsorption treatment on sewage; then adding hydrogen peroxide and sodium pyrosulfate into the sewage to carry out ultraviolet optical irradiation treatment; then adding a processing agent for treatment; performing biological degradation treatment; finally sterilizing byadopting chlorine to carry out processing of the sewage. According to the novel municipal sewage treatment method disclosed by the invention, the problem of unbalance of C-N ratio of the municipal sewage can be effectively solved, so that processing speed of the sewage is higher, the efficiency is higher, the effect is better and the quality of effluent water is good; in a whole processing procedure, harmful gas and sludge are basically not produced, so that the water treatment cost is lower.

Description

technical field [0001] The invention belongs to the technical field of curing agents, and in particular relates to a novel urban sewage treatment method. Background technique [0002] my country is an extremely water-scarce country. Although the total amount of fresh water accounts for 6% of the world's water resources, the per capita fresh water is only 1 / 4 of the world's average level, making it one of the 13 countries with the poorest per capita water resources in the world. "Water", an inexhaustible resource that was once considered inexhaustible, has become so scarce that it seriously restricts my country's economic development and seriously affects people's lives. According to the survey, the phenomenon of wasting water in our country is very common, and people have not paid enough attention to the water crisis, so the secondary utilization rate of water is low. If the recycling of water can be strengthened and domestic sewage can be regenerated and reused, then this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/281C02F1/32C02F1/50C02F1/66C02F1/722C02F1/763C02F3/00C02F9/00C02F2301/08C02F2303/04
Inventor 王勇杨建军赵雪健许鹤成赵智慧李芳芳廖京春闫伟新王佳
Owner 北京华禹清源水务科技有限公司
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