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

Composite technique treatment method of sewage

A technology for domestic sewage and technical treatment, which is used in microwave secondary treatment, water pollution control, municipal resource utilization, urban sewage treatment and its agriculture and forestry, and potassium ferrate primary treatment. And other issues

Inactive Publication Date: 2009-05-06
李宗辉
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of harsh bacterial treatment conditions, long time, and foul odor are very prominent

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
  • Composite technique treatment method of sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0004] The present invention will be further described below in conjunction with specific examples. The specific implementation steps of the present invention are: add 5mg-50mgK to 100ml domestic sewage 2 FeO 4 , stir well until the purple color in the water subsides. After sedimentation and stratification, the upper layer of sewage is irradiated in a microwave oven (1000w-2500W) for 5min-40min, left to settle for 1h, and the upper layer of sewage is separated to complete the treatment. If lime is added to it, the total phosphorus can be removed to less than 2mg / L, which can be discharged or reused up to the standard.

[0005] 4. Embodiment

[0006] Utilize the influent of certain sewage treatment plant to implement the present invention, in K 2 FeO 4 The dosage is 35mg / L, the microwave oven power is 1150W, and the irradiation time is 10min, the treatment effect is shown in the table below.

[0007] Table Treatment effect comparison (mean value of 10 times)

[0008]

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 method for treating domestic sewage by a combination technique. The method comprises a first potassium ferrate treatment and a second microwave treatment. The method comprises the following steps: domestic sewage is subjected to denitrification treatment with potassium ferrate, removal of CODcr and BOD5 and sedimentation; supernatant sewage is separated, radiated by microwaves, denitrified to remove a majority of CODcr and BOD5, and then directly used for irrigation of agriculture and forestry, municipal engineering and so on, or added with lime for dephosphorization and settled to be reused or discharged. The method has advantages of greatly reduced treatment time, purification, strong impact bearing capacity, low operation and management cost, and has obvious sewage recycling benefits.

Description

1. Technical field [0001] The invention relates to a treatment method of domestic sewage combined technology, in particular to potassium ferrate primary treatment and microwave secondary treatment, which is a water pollution control technology in the field of environmental science and engineering, and is suitable for urban sewage treatment, agriculture, forestry, and municipal resource utilization . 2. Background technology [0002] At present, the denitrification treatment of domestic sewage at home and abroad is mostly based on biological methods. The shortcomings of its bacterial treatment conditions are harsh, time-consuming, and foul odor are very prominent. Therefore, it has very direct practical significance to carry out denitrification treatment from another angle. Using potassium ferrate and microwave to denitrify domestic sewage and most of CODcr and BOD 5 After treatment, the remaining total phosphorus and potassium ferrate are added and the potassium ions brou...

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): C02F9/04C02F1/72C02F1/30
Inventor (请求不公开姓名)
Owner 李宗辉
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