Browsing Research Articles (Chemical Engineering) by Author "Coetzee, Johan J."

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Chromium in environment, its toxic effect from chromite-mining and ferrochrome industries, and its possible bioremediation

Coetzee, Johan J.; Bansal, Neetu; Chirwa, Evans M.N. (Springer, 2020-03)

Chromium has long been recognized as a toxic, mutagenic and carcinogenic metal. It is toxic to microorganism, plants, animals and humans. Chromium exists in environment in two stable forms: Cr(VI) and Cr(III). Cr(III) is ...
In situ bioremediation of chromium (VI) in a simulated ferrochrome slag

Bansal, Neetu; Coetzee, Johan J.; Chirwa, Evans M.N. (The Italian Association of Chemical Engineering, 2017)

Stability of chromium in the tailing dumps and stockpiles of chromium concentrate at chrome mining fields is affected by pH, redox potential, and the presence of other metallic species in the waste rocks. It is desirable ...

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