Deep treatment method of petrochemical engineering organic wastewater difficult to biodegrade

A refractory biodegradable and petrochemical technology, applied in the field of chemical sewage treatment, can solve the problems of complex components, high chemical oxygen consumption, high toxicity, etc., and achieve significant improvement, increase reaction efficiency, reduce ozone depletion and energy consumption.

Inactive Publication Date: 2017-10-10
CEEP CO LTD
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common characteristics of these substances are high toxicity, complex composition and high chemical oxygen consumption.

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
  • Deep treatment method of petrochemical engineering organic wastewater difficult to biodegrade
  • Deep treatment method of petrochemical engineering organic wastewater difficult to biodegrade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] When a petrochemical sewage treatment plant in Wuhai adopts the existing secondary treatment process, the chemical oxygen demand (COD) of the secondary treatment effluent is high, which cannot meet the national discharge standards, has poor biodegradability, high chroma, complex components, and large water quality changes . Therefore, the combination process of ozone catalytic oxidation and integrated biological filter proposed by the present invention is used to treat the secondary treatment effluent of the sewage treatment plant. The pilot-scale treatment system of this process adopts a system composed of an ozone catalytic oxidation reactor and an integrated biological filter in sequence, wherein the ozone catalytic oxidation reactor is filled with a fixed bed packing as a catalyst, and the volume of the packing accounts for 5% of the volume of the ozone catalytic oxidation reactor , divided into four pieces of modular loading, and the integrated biological filter is...

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 discloses a deep treatment method of petrochemical engineering organic wastewater difficult to biodegrade. Secondary treatment effluent of a petrochemical engineering sewage treatment device is treated with a catalytic ozonation and integrated biological filter combination technology, and the method specifically comprises the steps as follows: a coagulant and a coagulant aid are added to secondary treatment effluent for a precipitation reaction; then the sewage enters an ozonation reactor and is subjected to an oxidation reaction with ozone under the action of fixed bed catalytic filler, and the purposes of decolorizaiton and organic matter decomposition are achieved; finally, a high-load biological filter procedure and a variable-pore filter procedure are performed through an integrated biological filter, and after the sewage is treated by biological membranes attached to and growing on the surface of biological filter filler and is filtered by variable-pore filler, biodegradable organic matter in ozone decomposed water can be removed. The method is simple in process and convenient to operate, emission of pollutants in the petrochemical engineering sewage can be effectively reduced, the effluent quality requirement of existing secondary treatment process upgrading and reconstruction is met, and the economic benefit is increased.

Description

technical field [0001] The invention relates to an advanced treatment method for refractory biodegradable organic wastewater in petrochemical industry, belonging to the field of chemical sewage treatment. Background technique [0002] In recent years, due to the administrative pressure brought about by raising the discharge standards at the national level, water environmental pollution and water resource shortages, it is more urgent to upgrade and upgrade the sewage treatment plants of enterprises. The latest draft of "Pollutant Discharge Standards for Urban Sewage Treatment Plants" released by the National Environmental Protection Agency for comments, puts forward special discharge limits for the first time. The requirements are equivalent, which can meet the needs of ecological environment sensitive areas for the discharge control of sewage treatment plants. This revision also proposes special discharge limits applicable to sensitive areas, stipulating that the sewage dis...

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): C02F9/14C02F101/30C02F103/36
CPCC02F1/5245C02F1/56C02F1/725C02F1/78C02F3/10C02F3/34C02F9/00C02F2101/30C02F2103/365C02F2301/08
Inventor 孙阳付建新刘奎程星耀
Owner CEEP CO LTD
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