Reduction Behavior of Hexavalent Chromium in Alkaline Cement Systems Using Ferrous Sulfate

April 30, 2026Resources RecyclingOpen Access

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This investigation aims to evaluate the reduction of hexavalent chromium in alkaline cement systems through ferrous sulfate.
Investigation using ordinary Portland cement spiked with Cr(VI) to create a controlled test system.
Varying dosages of ferrous sulfate were added to assess their impact on Cr(VI) reduction.
Residual Cr(VI) concentrations were measured using UV–visible spectrophotometry and the diphenyl carbazide method.
The study found a monotonic decrease in Cr(VI) concentration as ferrous sulfate dosage increased.
Results indicate that higher amounts of ferrous sulfate enhance the reduction efficiency of Cr(VI).

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Experimental study investigates the reduction of hexavalent chromium in cement using ferrous sulfate, suggesting a remedial approach.

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Kwon et al. (2026) studied this question.

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