Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Circuit board tin-containing wastewater treatment device

A wastewater treatment and circuit board technology, applied in the field of circuit boards, can solve problems such as difficulty in meeting the needs of the large-scale industrialized PCB electronics industry, pollution, etc., and achieve the effects of low price, good treatment effect and simple operation

Pending Publication Date: 2021-11-09
徐红艳
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems in these existing technologies are: the electrolysis process needs to add metallic aluminum materials, the processing process requires more materials, and the addition of aluminum materials will easily lead to other forms of pollution. At the same time, it is difficult to meet the needs of large-scale industrialized PCB electronics industry

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
  • Circuit board tin-containing wastewater treatment device
  • Circuit board tin-containing wastewater treatment device
  • Circuit board tin-containing wastewater treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0025] Wherein, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical drawings, and should not be construed as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings will be omitted, Enlargement or reduction does not represent the size of the actual product; for those skilled in the art, it is understandable that certain known structures and their descriptions in the drawings may be omitted.

[0026] See attached Figure 1-3 , the tin-containing wastewater treatment device of the present embodiment includes: a pH adjustment tank configured to adjust the pH value of the tin-containing wastewater, a pH controller is arranged in the pH adjustment tank, and a...

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 belongs to the field of circuit boards, and particularly relates to a tin-containing wastewater treatment method. The method adopts an alkaline precipitation + membrane filtration + resin adsorption method for treatment, and comprises the following steps: putting sodium hydroxide into the tin-containing wastewater in an adjusting tank, fully mixing the sodium hydroxide and the tin-containing wastewater through aeration, and generating stannous hydroxide from hydroxyl and tin ions; precipitating the tin element in the wastewater to the bottom of the reactor along with the co-floc, and removing; and enabling small-particle stannous hydroxide to enter a membrane separator along with supernate, and further removing tin ions after separation of a hollow fiber membrane. T the service life of resin is guaranteed, and meanwhile, the standard pressure of tin treatment is effectively reduced.

Description

technical field [0001] The invention relates to the field of circuit boards (PCB), in particular to a tin-containing wastewater treatment device and method. Background technique [0002] With the rapid development of printed circuit boards and electronics industries in recent years, the requirements for environmental protection are also getting higher and higher. A large amount of tin-containing wastewater is produced in the process of PCB board manufacturing. If the human body consumes excessive inorganic tin elements, mild symptoms will cause digestion. Systemic lesions, poisoning symptoms, severe damage to the nervous system; not only that, high concentrations of tin will cause serious harm to water bodies, when the tin concentration exceeds 2mg / L, it will cause poisonous effects on fish, and when the tin concentration is 0.35mg / L Can reduce the reproductive capacity of Daphnia. If tin-containing wastewater is discharged directly, tin ions will be converted into organoti...

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): C02F9/04C02F101/20C02F103/16
CPCC02F9/00C02F2101/20C02F2103/16C02F1/66C02F1/44C02F1/5236C02F1/42C02F2001/425
Inventor 徐红艳
Owner 徐红艳
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com