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Questions related from Mark Hiemenz
I have data on metal sorption to sediment surfaces that contain site densities and equilibrium constants (non-electrostatic general surface complexation models), but I would like to get general Kd...
04 April 2018 9,688 0 View
I need to know pzc for a couple of pure mineral phases. Tried google, but couldn't find a good database. Is there such a thing? If so where can I find it?
02 March 2018 2,338 2 View
I needed to calculate mg/l CaCO3 values from partial CO2 pressures, but I'd like to double check with others to see if I did it correctly since the books aren't always clear on that. I used the...
05 October 2017 8,320 8 View
I was wondering if anyone can direct me to some good sources regarding US EPA requirements on groundwater risk assessment for inorganics. Specifically I'm looking at how regulators and the...
14 March 2017 580 3 View
We received sediment cores from a depth of about 150m below ground, and conducted rudimentary XRD and XRF analyses on the cores. They showed a significant amount of Fe2O3 (which I assume means...
13 February 2017 8,883 4 View
I ran a column experiment with a tritium tracer and am trying to find out the porosity of the soil. Unfortunately, I discarded the soil inside the column already without measuring the mass used....
02 February 2017 349 8 View
I have pH (6.5ish), [Ca] (~400 mg/l) and alkalinity (~360 mg/l), but when I try to do this with the formula that was given to me I get nonsense results.
23 January 2017 4,387 6 View
