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

COD pollutant treatment method

A pollutant treatment and treatment method technology, which is applied in the field of sewage treatment and COD treatment in sewage, can solve the problems of harsh microbial growth environment, sensitivity to pH and heavy metal ions, and excessive COD of effluent, so as to achieve convenient operation and management, good water quality, The effect of high removal rate

Inactive Publication Date: 2019-01-29
周尧
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the first two methods require large investment in equipment, high technical requirements, and high energy consumption. The third method occupies a large area, has a long residence time and is prone to odor.
Domestic treatment of PCB COD organic wastewater mostly adopts acidification-aerobic biological treatment. Although this method can effectively remove COD, it is often sensitive to the pH and heavy metal ions of the raw water due to the harsh requirements of the microbial growth environment. Improper operation caused the paralysis of the entire biochemical system, and the COD of the effluent seriously exceeded the standard

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
  • COD pollutant treatment method
  • COD pollutant treatment method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Example 1: The organic wastewater of a PCB factory enters the device after being acidified by its acidification tank. The color of the water is blue-green, the pH is about 1~2, the metal ions contained are mainly copper ions, and the COD is about 2500~3000 mg / L. The waste water is pumped to the iron-carbon pool 1 with a flow rate of 3m 3 / h. Because the waste water has been acidified, the pH adjustment device-7 is mainly used to monitor that the pH of the liquid in the iron-carbon pool is stable and meets the requirements. The aeration system 6 aerates to provide air into the pool, so that the oxygen content of the solution is 1.5~2mg / L, and promotes the iron-carbon micro-electrolysis reaction. Through the reaction, metal ions such as copper ions can be replaced and separated from waste water, macromolecular organic matter, etc. Pollutants can also be reacted and partially degraded, and ferrous ions are produced at the same time, the pH is slightly increased, and the...

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

Disclosed is a COD pollutant treatment method. The COD pollutant treatment method is characterized in that the method is to pass to-be-treated liquid through the following functional units in order: an iron-carbon tank which is provided with a water inlet and an automatic pH adjusting device at the top to adjust incoming water to be acidic and an aeration system at the bottom, a Fenton tank whichis provided with an automatic drug adding device at the water inlet to add hydrogen peroxide and an aeration system at the bottom, a coagulation tank which is provided with an automatic pH adjusting device at the water inlet to adjust incoming water to be alkaline and an automatic drug adding device at the water inlet to add a coagulant, and a sedimentation tank which is provided with a sludge discharge port at the bottom.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to the field of COD treatment in sewage. Background technique [0002] Printed circuit boards, electroplating, hardware processing, leather and other industries will produce heavy metal ions and high-concentration refractory COD organic wastewater, which will cause serious environmental pollution when discharged into rivers, resulting in lack of water resources and deterioration of water environment quality. . The commonly used methods for refractory organic wastewater are (1) wet oxidation method, (2) combustion method after evaporation, and (3) anaerobic biological treatment method. Wherein the first two methods have large investment in equipment, high technical requirements, and large energy consumption. The third method occupies a large area, has a long residence time and is prone to peculiar smell. Domestic treatment of PCB COD organic wastewater mostly adopts acidification-ae...

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): C02F9/06C02F101/30C02F101/20
CPCC02F1/28C02F1/46176C02F1/52C02F1/66C02F1/722C02F9/00C02F2001/007C02F2001/46133C02F2101/20C02F2101/30C02F2209/08C02F2305/026
Inventor 周尧
Owner 周尧
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