Efficient and environment-friendly urban sewage treatment method

A technology for urban sewage and treatment methods, applied in the field of water treatment, can solve the problems of waste of resources and non-compliance with the requirements of sustainable development, and achieve the effects of avoiding pollution, realizing resource utilization, and improving water return rate.

Inactive Publication Date: 2018-12-21
重庆渝茁科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing sewage treatment methods are mainly based on standard discharge, and seldom consider the utilization of waste resources. Although this method can also realize sewage treatment, it is likely to cause a great waste of resources, which is not in line with modern society's requirements for sustainable development. Continuous Development Requirements

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  • Efficient and environment-friendly urban sewage treatment method

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Effect test

Embodiment 1

[0031] The highly efficient and environment-friendly urban sewage treatment method provided in this embodiment comprises the following steps:

[0032] (1) According to the mass volume ratio of 1.5g: 1L, add a multifunctional sewage treatment agent to the mixed sewage slurry, stir it at a speed of 155r / min for 12 hours, and then let it stand for settlement. After the settlement is completed, take the supernatant The liquid is subjected to activated carbon adsorption treatment, and at the same time, the settled sludge is collected into the sludge collection tank;

[0033] (2) Perform microbial denitrification treatment on the liquid after the adsorption treatment, then filter it, perform ultraviolet sterilization treatment on the obtained filtrate, and collect the obtained filter residue into the sludge collection tank at the same time;

[0034] (3) performing reverse osmosis treatment on the sterilized liquid, collecting the obtained fresh water, and carrying out distillation t...

Embodiment 2

[0052] The highly efficient and environment-friendly urban sewage treatment method provided in this embodiment comprises the following steps:

[0053] (1) According to the mass volume ratio of 1.5g: 1L, add a multifunctional sewage treatment agent to the mixed sewage slurry, stir it at a speed of 155r / min for 12 hours, and then let it stand for settlement. After the settlement is completed, take the supernatant The liquid is subjected to activated carbon adsorption treatment, and at the same time, the settled sludge is collected into the sludge collection tank;

[0054] (2) Perform microbial denitrification treatment on the liquid after the adsorption treatment, then filter it, perform ultraviolet sterilization treatment on the obtained filtrate, and collect the obtained filter residue into the sludge collection tank at the same time;

[0055] (3) performing reverse osmosis treatment on the sterilized liquid, collecting the obtained fresh water, and carrying out distillation t...

Embodiment 3

[0070] The highly efficient and environment-friendly urban sewage treatment method provided in this embodiment comprises the following steps:

[0071] (1) According to the mass volume ratio of 1.5g: 1L, add a multifunctional sewage treatment agent to the mixed sewage slurry, stir it at a speed of 155r / min for 12 hours, and then let it stand for settlement. After the settlement is completed, take the supernatant The liquid is subjected to activated carbon adsorption treatment, and at the same time, the settled sludge is collected into the sludge collection tank;

[0072] (2) Perform microbial denitrification treatment on the liquid after the adsorption treatment, then filter it, perform ultraviolet sterilization treatment on the obtained filtrate, and collect the obtained filter residue into the sludge collection tank at the same time;

[0073] (3) performing reverse osmosis treatment on the sterilized liquid, collecting the obtained fresh water, and carrying out distillation t...

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Abstract

The invention provides an efficient and environment-friendly urban sewage treatment method. Sewage slurry is treated by a novel sewage treatment agent, treatment processes of activated carbon adsorption treatment, filtering treatment, microbial denitrification treatment, ultraviolet sterilization treatment, reverse osmosis treatment and distillation treatment are adopted, the sewage slurry is directly treated into a mud cake, fresh water and crystal salt, and the obtained mud cake is prepared into sludge-based activated carbon with excellent adsorption property; the water quality of the freshwater through the treatment by the method reaches to the reutilization standard and the fresh water can be directly recovered and reutilized; and the obtained crystal salt can delivered to be treated.Sewage slurry treatment is conducted by the sewage treatment method, so that the water return rate is increased, zero discharge of sewage is realized, resource utilization of sewage and sludge is realized, and the sustainable development requirement is met.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to an efficient and environment-friendly urban sewage treatment method. Background technique [0002] Urban sewage treatment is the centralized treatment of urban sewage discharged from the city and sewage discharged from factories, that is to say, urban sewage includes domestic sewage and industrial sewage. Due to long-term accumulation, the sewage contains a large amount of harmful substances such as mud, bacteria, heavy metal ions, inorganic compounds and organic compounds. If it is directly discharged into the water body without treatment, it will bring heavy pressure to the water environment and will seriously The health of people's drinking water poses a serious threat to limited water resources, and even threatens people's survival and development environment. Most of the existing sewage treatment methods are mainly based on standard discharge, and seldom consider the utilizat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/12
CPCC02F1/001C02F1/04C02F1/283C02F1/32C02F1/441C02F1/52C02F1/72C02F9/00C02F11/122C02F2001/007C02F2103/001C02F2303/04
Inventor 曾文李艳琼张书张岭江
Owner 重庆渝茁科技有限公司
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