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Chapter 5: Conservation
Businesses are finding that by conserving natural resources and
energy they can cut costs, improve the environment, and improve
their competitiveness. And due to the substantial amount of rinse
water consumed and wastewater generated by traditional electroless
copper processes, water conservation is an issue of particular
concern to printed wiring board (PWB) manufacturers and to the
communities in which they are located. This chapter of the Cleaner
Technologies Substitutes Assessment (CTSA) evaluates the comparative
resource consumption and energy use of the making holes conductive
(MHC) technologies. Section 5.1 presents a comparative analysis
of the resource consumption rates of MHC technologies, including
the relative amounts of rinse water consumed by the technologies
and a discussion of factors affecting process and wastewater treatment
chemicals consumption. Section 5.2 presents a comparative analysis
of the energy impacts of MHC technologies, including the relative
amount of energy consumed by each MHC process, the environmental
impacts of this energy consumption, and factors affecting energy
consumption during other life-cycle stages, such as chemical manufacturing
or MHC waste disposal.
5.1 RESOURCE CONSERVATION [109K PDF file]
5.2 ch5-2.pdf [60K PDF file]
Click here for an Adobe Acrobat PDF version of Chapter 5 in its entirety. [166K PDF file]
For Volume I in its entirety [4,508K PDF file]
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