Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sewage treatment method

A technology for sewage and domestic sewage, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as solid waste pollution, achieve sewage discharge fee saving, stable treatment effect, The effect of less mud production

Active Publication Date: 2013-12-18
PETROCHINA CO LTD
View PDF6 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pollution caused by solid waste

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sewage treatment method
  • Sewage treatment method
  • Sewage treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Certain nursing home waste water quality is shown in Table 1, adopts the present invention figure 1 The process flow system is processed, and the processing results are shown in Table 1.

[0024] Table 1 Water quality characteristics and treatment effect of sewage in a sanatorium (mg / L)

[0025]

Embodiment 2

[0027] Table 2 shows the water quality index before treatment and the effluent effect after treatment of a hotel's catering wastewater.

[0028] Table 2 Water quality characteristics and treatment effect of catering wastewater in a hotel (mg / L)

[0029]

Embodiment 3

[0031] Table 3 shows the water quality index before treatment and the effluent effect after treatment of catering wastewater in a tourist resort.

[0032] Table 3 Water quality characteristics and treatment effect of catering wastewater in a tourist resort area (mg / L)

[0033]

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

PropertyMeasurementUnit
turbidityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a sewage treatment method. The method is as below: sending domestic sewage into an oil separator through a machinery grating, and then sending the sewage into a hydrolysis-acidification pool to decompose macro-molecular organic matters in the sewage into micromolecular organic matters, so as to remove part of COD; sending the sewage into a primary settling tank to concentrating sludge and discharging the sludge into a sludge storage tank; sending an upper clarified liquor into an anoxic biochemical pool; carrying out an denitrification reaction on the sewage and a nitrated liquid flowing back from an aerobic biochemical pool; introducing effluent into the aerobic biochemical pool for aerobic biochemical reaction, and sending the other part of the sewage into a secondary settling tank through an overflow weir; concentrating the sludge, discharging the sludge into the sludge storage tank and flowing the upper clarified liquor into a clear water tank; part of the sludge in the sludge storage tank flows back to the hydrolysis-acidification pool; and conveying clear water to a biological active carbon reactor, flowing outlet water into an ozone contact pool and disinfecting the water outlet for reuse. The method has stable treatment effect, generates a small amount of sludge; residual sludge returns to the nature; and treated sewage is reused in water-scenery and greening, so as to save sewage charge and reduce environmental pollution.

Description

Technical field: [0001] The invention relates to a treatment method for distributed domestic sewage, in particular to a treatment method for domestic sewage in sanatoriums, large hotels, leisure resorts, villas in scenic spots, expressway service areas, and the like. Background technique [0002] my country's "Water Pollution Prevention Law" stipulates that the sewage discharged from residential areas, tourist attractions, resorts, sanatoriums, airports, railway stations, economic development zones and other scattered crowd settlements that cannot be included in the urban sewage collection system and industrial wastewater from independent industrial and mining areas Standardized discharge should be treated locally. Nursing homes, large hotels, large restaurants, leisure tourism resorts, scenic villas, and expressway service areas are all distributed domestic sewage discharge sources. Nursing homes, resorts, and mountain villas are generally located near mountains and rivers,...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 张延涛宁艳春饶辉凯蒲文晶苗磊杨晓明钟大辉刘巍耿长君吕利民庄立波岳春雨陈绮莉
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com