Domestic sewage treatment method

A technology for domestic sewage and treatment methods, applied in biological water/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of low phosphorus and nitrogen removal rate, unsatisfactory effect, and short residence time. , to achieve the effect of good effect, high sewage treatment efficiency and fast response speed

Inactive Publication Date: 2016-05-25
蒋安美
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most widely used is the anaerobic-anoxic-aerobic biochemical phosphorus removal and denitrification process. This process is to control the anaerobic-anoxic-aerobic process. By degrading nitrification/denitrification, it is more suitable for phosphorus removal and nitrogen removal. However, in reality, it is difficult for a set of process to achieve the three functions of organic matter removal, nitrogen removal, and phosphorus removal at the same time. Phosphorus remo

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The processing method of domestic sewage in the present embodiment, concrete steps are as follows:

[0036] (1) Separation of sewage debris: Domestic sewage first enters the filtration and separation device to remove coarse sewage waste in the sewage, and then sends the sewage into the anaerobic hydrolysis tank to remove large suspended solids;

[0037] (2) Anaerobic hydrolysis treatment: discharge the filtered sewage to the anaerobic hydrolysis tank, return the separated sludge to the anaerobic hydrolysis tank, and use the stirring device in the anaerobic hydrolysis tank to stir the sludge filtered from the return flow In the suspension state, the anaerobic bacteria in the activated sludge are used to fully break the chains of the pollutant macromolecules in the sewage, and quickly degrade the organic matter;

[0038](3) Biochemical treatment of sewage: specifically includes the following aspects: ① Cultivate the bacteria in the activated sludge: adjust the water quali...

Embodiment 2

[0055] The processing method of domestic sewage in the present embodiment, concrete steps are as follows:

[0056] (1) Separation of sewage debris: Domestic sewage first enters the filtration and separation device to remove coarse sewage waste in the sewage, and then sends the sewage into the anaerobic hydrolysis tank to remove large suspended solids;

[0057] (2) Anaerobic hydrolysis treatment: discharge the filtered sewage to the anaerobic hydrolysis tank, return the separated sludge to the anaerobic hydrolysis tank, and use the stirring device in the anaerobic hydrolysis tank to stir the sludge filtered from the return flow In the suspension state, the anaerobic bacteria in the activated sludge are used to fully break the chains of the pollutant macromolecules in the sewage, and quickly degrade the organic matter;

[0058] (3) Biochemical treatment of sewage: specifically includes the following aspects: ① Cultivate the bacteria in the activated sludge: adjust the water qual...

Embodiment 3

[0075] The processing method of domestic sewage in the present embodiment, concrete steps are as follows:

[0076] (1) Separation of sewage debris: Domestic sewage first enters the filtration and separation device to remove coarse sewage waste in the sewage, and then sends the sewage into the anaerobic hydrolysis tank to remove large suspended solids;

[0077] (2) Anaerobic hydrolysis treatment: discharge the filtered sewage to the anaerobic hydrolysis tank, return the separated sludge to the anaerobic hydrolysis tank, and use the stirring device in the anaerobic hydrolysis tank to stir the sludge filtered from the return flow In the suspension state, the anaerobic bacteria in the activated sludge are used to fully break the chains of the pollutant macromolecules in the sewage, and quickly degrade the organic matter;

[0078] (3) Biochemical treatment of sewage: specifically includes the following aspects: ① Cultivate the bacteria in the activated sludge: adjust the water qualit...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a domestic sewage treatment method. The method includes the first step of separation of sewage sundries, the second step of anaerobic hydrolysis treatment, the third step of biochemical treatment of the sewage, the fourth step of sediment, the fifth step of coagulation and dephosphorization, the six step of flocculation and sterilization and the seventh step of removal of suspended solids and phosphorus. Biochemical treatment of the sewage includes the specific steps that firstly, microfloras in activated sludge are cultured; secondly, biochemical denitrification is conducted; thirdly, biochemical dephosphorization is carried out. The sewage treatment method is high in sewage treatment efficiency and can effectively remove COD, BOD, SS, N and P, the treated water can serve as domestic water, the target of reuse of wastewater is achieved, and circulating use of resources is achieved. A domestic sewage treatment agent in the method is quick in reaction speed and does not generate toxic and harmful gas in the process. Products generated after reaction are stable, cannot be decomposed into harmful matter, are efficient, free of toxin, safe to human bodies before and after the reaction, and do not corrode objects. Sewage treatment efficiency is high, the treatment method is good in effect and low in energy consumption.

Description

technical field [0001] The invention relates to a domestic sewage treatment method, which belongs to the technical field of sewage treatment. Background technique [0002] At present, environmental protection has become a concern of the world, and the discharge requirements of domestic sewage are strict. The country has adopted [0003] Corresponding mandatory measures, seeking an effective domestic sewage treatment agent, which can meet the sewage discharge requirements after sewage treatment, is a difficult problem that many enterprises need to solve urgently. Sewage treatment technology plays a very important role in water saving, energy saving and other issues, but at the same time, the use of sewage treatment chemicals also has a certain impact on the environment. [0004] The traditional sewage treatment process is mainly based on biological methods. The operating cost is low, which mainly solves the pollution problem, not to mention [0005] use. However, the old ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/001C02F1/5245C02F1/722C02F3/28C02F3/34C02F2001/007C02F2301/08
Inventor 蒋安美
Owner 蒋安美
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap