Biochemical treatment method of acrylic ester industrial wastewater

A biochemical treatment and acrylate technology, applied in biological water/sewage treatment, natural water treatment, chemical instruments and methods, etc., can solve the problems of high operating cost and affect the economic benefits of enterprises, reduce floor space, intercept suspended The effect of strong physical ability and large specific surface area

Inactive Publication Date: 2010-09-15
SHENYANG PARAFFIN CHEM
View PDF4 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Since the incineration method uses liquefied gas as fuel to treat wastewater, it consumes a lot of energy every day and the operat...

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
  • Biochemical treatment method of acrylic ester industrial wastewater
  • Biochemical treatment method of acrylic ester industrial wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Depend on figure 1 As shown, the pretreatment step is carried out in the wastewater pretreatment system I, and the wastewater pretreatment system I includes wastewater collecting equipment 1 and wastewater regulating equipment 2 . The acrylate wastewater generated from the production equipment is first collected and stored by the wastewater collection equipment 1; then it is pumped to the wastewater adjustment equipment 2, and the COD and salt content of the wastewater are adjusted by using the clear water sent back from the flocculation sedimentation tank 11, and adjusted by lye The PH value of the wastewater uses steam to adjust the temperature of the wastewater. The purpose of the wastewater conditioning equipment 2 is to reduce the fluctuation of the wastewater quality and flow, so that the microorganisms in the rear can live in the best state, and provide the best conditions for the subsequent biochemical treatment. The outlet of the waste water regulating equipmen...

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 provides a biochemical treatment process method of acrylic ester wastewater. The acrylic ester wastewater with high COD (Chemical Oxygen Demand) and high slat content produced by production equipment is pretreated by using a wastewater pretreatment system (I) and enters a primary biochemical treatment system (II) for step anaerobic and aerobic biochemical treatment; the wastewater subjected to the step treatment enters a secondary biochemical treatment system (III) for secondary anaerobic and aerobic biochemical treatment and then enters a purification treatment system (IV) for removing sludge and organic pollutants; and finally a small part of wastewater reaching the standard is fed back to the wastewater pretreatment system (I) for recycling and mostly is discharged. By adopting a specially-screened and domesticated high-efficiency microbial strain to treat the acrylic ester wastewater, the biochemical treatment system can thoroughly degrade the acrylic ester wastewater and has no secondary pollution; in the step of flocculation precipitation, clean water treated by the purification treatment system reflows to the pretreatment system for secondary utilization; and compared with a method for treating the wastewater by incineration, the invention can save large amount of fuels and steam and has remarkable economic benefits.

Description

technical field [0001] The invention relates to the field of organic wastewater treatment, in particular to a biochemical treatment method for wastewater generated in the production process of acrylate. Background technique [0002] As we all know, acrylate is an important organic chemical raw material, widely used in coatings, adhesives, leather, chemical fiber, papermaking, printing and dyeing, textile auxiliaries and other industries. In recent years, the application of acrylate products in the world has become more and more extensive, and the production capacity has increased rapidly. At present, there are more than ten acrylate manufacturers in China, including Beijing Dongfang, Jiangsu Jurong, Shanghai Huayi, Ningbo Formosa Plastics and Yangzi-BASF. The project is under construction again. [0003] The general production process of acrylate is: the mixture of acrylic acid and alcohol reacts in the reactor under the action of a certain temperature, pressure and cataly...

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): C02F9/14C02F3/30C02F3/34C02F103/36
CPCY02E50/343Y02E50/30
Inventor 巩渊博夏长斌孙永政童健罗玉高月新田光白宝忱张学丽贾亮王克杨杰
Owner SHENYANG PARAFFIN CHEM
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