E3S Web Conf.
Volume 338, 20227th International Conference on Environmental Science and Material Application (ESMA 2021)
|Number of page(s)||4|
|Published online||20 January 2022|
Technical study on the treatment of PCB production waste liquid and copper extraction
College of Information Engineering, Shaanxi Institute of International Trade & Commerce, Xi’an 712046, Shaanxi, China
* Corresponding author: firstname.lastname@example.org
The increase in the use of electronic products has increased the production of printed circuit boards, in the production of circuit boards in the etching, micro-etching process, will produce a large number of high concentration of copper-containing etching waste liquid, these waste liquid, if directly discharged, will not only cause serious pollution to the human living environment, but also a large number of copper resources will be wasted. Therefore, this paper adopts a closed circulation system to treat the etching mother liquor discharged from the production line, extracting copper ions from the high concentration copper-containing etching liquid, and then returning the low concentration copper-containing etching liquid to the production line, which can not only effectively recover copper resources, but also make the pollution emission of etching waste liquid zero and not produce secondary pollution, so as to realize the harmony between human and nature by increasing production without increasing pollution. Development.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.