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Copper content in wastewater generated during printed circuit board manufacturing

Author: ntt666Executions: 124
TOP/Shared Formulas (Life)/Environment

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Based on the PCB specifications and the volume of etching solution, calculate the copper content in the waste solution (mg/L; roughly equivalent to ppm).
* Although there is a field labeled “Dilution Water Volume,” this does not imply that we recommend simply discharging the waste solution after dilution.
Please either handle the waste solution properly yourself or hire a specialized contractor.
* The density of copper is assumed to be 8.96 (g/cm³).
Circuit board width
mm
Vertical width of the circuit board
mm
Percentage of the dissolved portion relative to the total
%
Copper foil thickness
μm
Etching Solution Volume
ml
Copper Content in Waste Liquid g
Copper Content in Waste Liquid (Converted to 1 L) mg/L
Water for dilution L
*The dilution water volume refers to the amount of water required to dilute the solution to meet national discharge standards.

June 28, 2021: First edition published
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