Treatment method of petrochemical wastewater

A petrochemical and treatment method technology, applied in the field of petrochemical wastewater treatment, can solve the problems of low treatment efficiency, difficult to meet the standard discharge wastewater treatment system design and operation, complex and other problems, achieve high pollutant removal rate, good economic benefits, reduce The effect of usage

Active Publication Date: 2017-09-01
青海省化工设计研究院有限公司
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for treating petrochemical wastewater, which solves the problems in the prior art that the petrochemical wastewater is difficult to meet the discharge standard when treated by traditional physical and chemical methods, and the current wastewater treatment system is complicated in design and operation, and has low treatment efficiency.

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
  • Treatment method of petrochemical wastewater
  • Treatment method of petrochemical wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A treatment method for petrochemical wastewater, comprising the steps of:

[0035] Step 1, oil separation treatment: collect petrochemical wastewater, pass it into the grease trap, and use the oil scraper to scrape the oil on the water surface to obtain the effluent from the grease trap;

[0036] Step 2, air flotation treatment: the water from the oil separation tank enters the air flotation tank to remove SS, oil slick and COD. The air flotation tank adopts pressurized dissolved air flotation, the pressure of the pressurized dissolved air is 0.5Mpa, the volume ratio of steam to water is 0.5:1, and the reflux The ratio is 20%, the waste gas residence time is 50min, and the air flotation scum is processed by the chain scraper machine to obtain the effluent of the air flotation tank;

[0037] Step 3, advanced oxidation and flocculation treatment: the effluent from the air flotation tank enters the advanced oxidation tank, and the advanced oxidation tank is equipped with a...

Embodiment 2

[0044] A treatment method for petrochemical wastewater, comprising the steps of:

[0045] Step 1, oil separation treatment: collect petrochemical wastewater, pass it into the grease trap, and use the oil scraper to scrape the oil on the water surface to obtain the effluent from the grease trap;

[0046] Step 2, air flotation treatment: the water from the grease trap enters the air flotation tank to remove SS, oil slick and COD. The air flotation tank adopts pressurized dissolved air flotation, the pressure of the pressurized dissolved air is 0.6Mpa, the volume ratio of steam to water is 0.1:1, and the reflux The ratio is 30%, the waste gas residence time is 60min, and the air flotation scum is processed by the chain scraper machine to obtain the effluent of the air flotation tank;

[0047] Step 3, advanced oxidation and flocculation treatment: the effluent from the air flotation tank enters the advanced oxidation tank, and the advanced oxidation tank is equipped with a pH onli...

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
particle diameteraaaaaaaaaa
specific surface areaaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a treatment method of petrochemical wastewater, which comprises the steps of oil separation treatment, air floatation treatment, advanced oxidization, flocculation treatment, solid-liquid separation treatment, biological treatment, and sterilization and disinfection. According to the treatment method of the petrochemical wastewater, most petroleum pollutants in the wastewater are treated by oil separation and air floatation, and then residual petroleum pollutants are removed by petroleum hydrocarbon degrading bacteria loaded on biological porous ceramic powder filled in a biological filter, so that the wastewater meets a discharge standard. In addition, most organic pollutants and partial NH3-N are removed by the advanced oxidization, and then residual NH3-N is removed by aerobic, anoxic and anaerobic regions formed by a biological filler filled in the biological filter, so that the concentration of various pollutants in the wastewater treated by the treatment method meets a standard discharge requirement.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a treatment method for petrochemical wastewater. Background technique [0002] Petrochemical wastewater includes water used in petroleum extraction, petroleum refining and petrochemical processes, with complex components and various types. Generally, petrochemical wastewater is divided into four categories: petroleum refining wastewater, petrochemical wastewater, chemical fiber industrial wastewater and chemical fertilizer industrial wastewater. The main characteristics of petrochemical wastewater are high concentration of organic matter, large volume of wastewater, and complex components, except for oil, sulfur, phenol, COD, NH 3 In addition to -N, SS, acid, alkali, salt, etc., it also contains various organic substances and organic chemical products, such as ethers, ketones, aldehydes, hydrocarbons, organic acids, oil agents, and inorganic substances, ...

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): C02F9/14C02F103/36C02F101/32C02F101/16C02F101/34C02F103/10
CPCC02F1/001C02F1/24C02F1/40C02F1/5236C02F1/66C02F1/722C02F1/725C02F3/02C02F3/301C02F3/34C02F3/344C02F9/00C02F2003/001C02F2003/003C02F2101/16C02F2101/32C02F2101/34C02F2101/345C02F2103/10C02F2103/365C02F2301/08C02F2303/04C02F2305/026
Inventor 吴朝香仵东亮杜海涛刘鹏
Owner 青海省化工设计研究院有限公司
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