Using tritiated water as conservative tracer, an average retardation factor,R fi

Question

Using tritiated water as conservative tracer, an average retardation factor,Rfi (f-1iw; see Eq. 9.12) of about 10 was determined for chlorobenzene in an aquifer. (a) Assuming this retardation factor reflects absorption to the aquifer solids' POM, what is the average organic carbon content (foc) of the aquifer material if its minerals have density 2.5 kg/L and if the porosity is .33? (b) Estimate the Rfi values of 1,3,5-triclorobenzene (1,3,5-TCB) and 2,4,6-trichlorophenol (2,4,6-TCP) in this aquifer (pH=7.5, T=10 C) by assuming that absorption into the POM present is the major sorption mechanism. Why can you expect to make a better prediction of Rfi for 1,3,5-TCB as compared to 2,4,6-TCP?

Explanation / Answer

I will answer the part a), if you want the others question, attach them in a new question, missing data...

a) 2.5*0.33=0.825 kg

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