Method and apparatus for treating oil refining sewerage

A technology for oil refinery sewage and treatment methods, which is applied in water/sewage treatment, biological water/sewage treatment, multi-stage water/sewage treatment, etc. It can solve problems such as difficult biodegradation, high operating costs, and secondary pollution of metal ions. To achieve the effect of reducing impact impact, low investment and operating costs

Active Publication Date: 2009-05-20
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 48 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the three types of wastewater are mixed, they finally show the comprehensive characteristics of salinity, high emulsification, high concentration, difficult biodegradation, and strong odor. It is difficult to achieve effective oil removal, biooxidation, or physical and chemical treatment technologies by conventional oil removal, biological oxidation, and physical and chemical treatment. Emission targets such as deodorization and COD removal
[0005] Based on the above an

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

[0016] The treatment method of the present invention is used to treat three kinds of high-concentration mixed wastewater up to standard, including drainage from an electric desalination device in a certain domestic oil refinery, waste lye discharged from alkali refining of oil products and liquefied petroleum gas, and cut water from oil tank farms. Mixed wastewater COD 4500mg / L, sulfide 1300mg / L, petroleum 100mg / L, ammonia nitrogen 100mg / L, pH 11.0. The electrolytic catalytic oxidation-SBR combination process of the present invention is used for treatment, and the electrolytic catalytic oxidation reactor is a tank body made of organic glass material with an open top opening, with an effective volume of 1.5L. A stainless steel plate and a graphite plate are respectively arranged on the two side walls of the tank body, and are respectively connected to the negative pole and the positive pole of the DC stabilized voltage power supply. A microporous aerator for oxygenation and a w...

Embodiment 2～5

[0018] The treatment device of Example 1 was used to treat the same sewage as in Example 1. The specific treatment conditions and results of the electrolytic catalytic oxidation reactor are shown in Table 1, and the conditions of the activated sludge process were the same as in Example 1.

[0019] Table 1 Main processing conditions and results of Examples 2 to 5

[0020] Example 2 3 4 5 Catalytic Oxidation Catalyst Group

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 treatment method and a device for refinery sewage. The refinery sewage is sent into an electrolytic catalysis oxidation reactor which is provided with an anode, a cathode and solid catalyst particles, wherein, the lower part of the reactor is provided with an oxygenation aeration device, the solid catalyst particles are filled between the anode and the cathode, and the solid catalyst particles adopts particle activated carbon loaded with metals having catalytic and oxidation function. The effluent of the electrolytic catalysis oxidation can be further treated by adopting an activated sludge process. The method is used for treating high-concentration salt-containing mixed wastewater such as the draining water of a refinery electrical desalting unit, the alkali washing waste alkali liquid of oils, liquefied petroleum gas and dry gas, and cutting water in an oils tank farm, and the like, the wastewater after treatment satisfies the requirement of direct discharging, thus alleviating impact on a wastewater treatment plant. The method put forward by the invention has the advantages that high-concentration wastewater can reach disposable treatment standard and does not need any dilution biochemical treatment, treatment effluent is not polluted secondarily by metal ions, and investment and running cost are lower, and the like.

Description

technical field [0001] The invention relates to a treatment method for oil refinery sewage and a device used in the method, in particular to a standard-reaching treatment method and device for high-concentration salt-containing sewage in oil refinery. Background technique [0002] At present, oil refinery sewage is mainly treated by centralized mixing, that is, oily sewage discharged from various production units, sulfur-containing sewage, purified water after stripping pretreatment, and production or domestic water are mixed and then passed through the oil separation-flotation-biochemical combination process Discharge after standard treatment. However, with the deteriorating properties of crude oil processed by refining and chemical companies and the increasingly stringent requirements for wastewater reuse due to water shortages, this centralized and mixed treatment method and process for wastewater has increasingly exposed major problems. First of all, the proportion of m...

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): C02F9/14C02F9/06C02F3/12C02F1/461C02F103/36
CPCY02W10/10
Inventor 郭宏山王明星许谦朱卫
Owner CHINA PETROLEUM & CHEM CORP
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