E3sconf Esma2021 01047

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e3s web of conferences 338 01047 2022 https doi org 10 1051 e3sconf 202233801047 esma 2021 technical study on the treatment of pcb production waste liquid and copper extraction chen ...

Filetype PDF | Posted on 25 Feb 2023 | 4 years ago

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...Es web of conferences https doi org esconf esma technical study on the treatment pcb production waste liquid and copper extraction chen ru college information engineering shaanxi institute international trade commerce xi an china abstract increase in use electronic products has increased printed circuit boards etching micro process will produce a large number high concentration containing these if directly discharged not only cause serious pollution to human living environment but also resources be wasted therefore this paper adopts closed circulation system treat mother liquor from line extracting ions then returning low which can effectively recover make emission zero secondary so as realize harmony between nature by increasing without development introduction material board cost clad accounts for about is component proportion according recent years that uses printing etch surface s laminate capacity output insulated heat are steadily communications computers easily bent leaving mesh...

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Posted on: 25 Feb 2023 | 4 years ago
Tag: download pdf, e3sconf, esma2021, 01047,
Filetype: PDF
File size: 0.43 MB
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