Unlock instant, AI-driven research and patent intelligence for your innovation.

System and method for removing bisphenol A in high-salt wastewater and application

A high-salt wastewater and bisphenol technology is applied in chemical instruments and methods, water pollutants, flotation water/sewage treatment, etc. It can solve problems such as unsuitable bisphenol A removal, complicated cultivation, unfavorable wastewater treatment, etc., to achieve Significant removal rate, simple cost, and the effect of improving raw material utilization

Pending Publication Date: 2019-08-02
LIAOCHENG LUXI POLYCARBONATE CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cultivation of white rot fungi is more complicated, and it is not suitable for the removal of bisphenol A in high-salt wastewater.
[0007] CN201410739333 patent discloses a method for degrading bisphenol A in drinking water in cooperation with hydroxylamine hydrochloride and persulfate. This process needs to add substances such as persulfate and hydroxylamine hydrochloride to the water, and introduces other chemical raw materials, which is not conducive to other waste water. The processing of ingredients increases the difficulty of subsequent water treatment

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
  • System and method for removing bisphenol A in high-salt wastewater and application
  • System and method for removing bisphenol A in high-salt wastewater and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A system for removing bisphenol A in high-salt wastewater, reference figure 1, including: air flotation tank 1, mixing chamber 2, dissolved air pump 3, pressure dissolved air tank 4, centrifugal pump 5, filter 6, water inlet 7 and water outlet 8.

[0044] The water inlet 7 and the water outlet 8 are respectively arranged at both ends of the air flotation tank 1 , and the water inlet 7 communicates with the mixing chamber 2 , and the mixing chamber 2 is arranged at one end of the water inlet 7 in the air flotation tank 1 .

[0045] The dissolved air pump 3 and the pressure dissolved air tank 4 jointly constitute a pressurized air flotation device 3, wherein the inlet of the dissolved air pump 3 communicates with the air flotation tank 1, and the connection point is located at the end where the water outlet 8 is located; the dissolved air pump The outlet of 3 communicates with the inlet of the pressure dissolving tank 4, and the outlet of the pressure dissolving tank 4 co...

Embodiment 2

[0049] A system for removing bisphenol A in high-salt wastewater is the same as in Example 1, the difference is that the system for removing bisphenol A in high-salt wastewater also includes staggered partitions 9 (refer to figure 2 ), one end of the partition 9 is fixed on the air flotation tank 1, so that the waste water flows in an "S" shape under the constraint of the partition 9, so that the waste water can be more fully treated in the air flotation tank 1.

Embodiment 3

[0051] A system for removing bisphenol A in high-salt wastewater is the same as that in Example 1, except that the mixing method in the mixing chamber is air stirring, and the filter is a membrane filter.

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 the field of wastewater treatment, in particular to a system and method for removing bisphenol A in high-salt wastewater and application. The method comprises the following steps: 1) generation of bisphenol A particles: adding acid to the high-salt wastewater containing bisphenol A to adjust the pH value of the wastewater; 2) air floatation: enabling the wastewater after acid addition reaction is carried out to flow out of a mixing chamber, then starting an air dissolving pump, enabling the bisphenol A particles generated in the step (1) to be exposed and float to thewater surface through pressurization of the air dissolving pump, and continuously circulating the process; 3) filtering: pumping the bisphenol A particles floating to the water surface and part of thewastewater into a filter by a centrifugal pump to be filtered, filtering off the bisphenol A particles, and enabling the filtrate to flow back into an air floatation tank; and after the whole wastewater in the air flotation tank is filtered, opening a water outlet, and discharging the wastewater after removing a salt compound of bisphenol A in the high-salt water. By the method and system provided by the invention, the bisphenol A in high-salt wastewater is efficiently removed without introducing new ions.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a system, method and application for removing bisphenol A in high-salt wastewater. Background technique [0002] In the Background of the Invention, the disclosed information is only intended to increase the understanding of the general background of the present invention, and is not necessarily to be regarded as an acknowledgment or in any form to imply that the information constitutes the prior art already known to those skilled in the art. [0003] Bisphenol A, namely 4,4-dihydroxydiphenylpropane (biphenyl A, referred to as BPA), is a synthetic industrial chemical widely used in the production of polycarbonate (PC), epoxy resin (EP), etc. Molecular materials can also be used to produce fine chemical products such as plasticizers, flame retardants, antioxidants, heat stabilizers, rubber antioxidants, pesticides, and coatings. BPA is generally considered to be a relatively t...

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): C02F9/04C02F101/34
CPCC02F1/001C02F1/24C02F1/66C02F9/00C02F2101/345
Inventor 曹全福胡大春张照飞孙彩虹
Owner LIAOCHENG LUXI POLYCARBONATE CO LTD