Browsing Research Articles (Chemical Engineering) by UP Author "Kaimbi, Lapaka Albertina"

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Efficiency of remobilisation of chromium precipitates in an aquifer permeable reactive barrier

Kaimbi, Lapaka Albertina; Chirwa, Evans M.N. (The Italian Association of Chemical Engineering, 2018)

Chromium exists largely in two oxidation states, namely Cr(VI) which is carcinogenic and mutagenic to living organisms including humans, and Cr(III) which is about 1,000 times less toxic than Cr(VI). It is therefore ...
Remobilization of trivalent chromium and the regeneration of in situ permeable reactive barriers during operation

Kaimbi, Lapaka Albertina; Chirwa, Evans M.N. (AIDIC - The Italian Association of Chemical Engineering, 2013)

Chromium exists largely in two oxidation states, namely hexavalent chromium (Cr(VI)) which is carcinogenic and mutagenic to living organisms including humans, and tetravalent chromium (Cr(III)) which is known to be 1,000 ...

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