An analysis of a wet sludge sample on a ppm weight basis ind
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An analysis of a wet sludge sample on a ppm weight basis indicates a value of 2900 ppm. The sample has a dry solids content of 19% (by weight) or a moisture content of 81% (by weight).
I have seen numerous computations including:
ppm dry = ppm wet/% solids or,
ppm dry = ppm wet/% moisture content
Which is correct....and what is the real way to get from ppm wet (wgt basis) to ppm dry (wgt basis)??
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"Parts-per" notation is used, especially in science and engineering, to denote relative proportions in measured quantities; particularly in low-value (high-ratio) proportions at the parts-per-million (ppm). One part per million (ppm): Denotes one part per 1,000,000 parts, one part in 10^6, and a value of 1 × 10^-6.
First of all, when a quantity is being referred to as ppm, the quantity has to be specified. For example, a solution of Cu2+ in water has a concentration of 100 ppm. This means there is 100 parts of Cu2+ ...
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