Abstract
In this paper, tartaric acid (C(4)H(6)O(6)) was used as a reductant to treat chromium (VI)-containing solution. Several independent experimental parameters, including reaction temperature, concentration of H(2)SO(4), concentration of C(4)H(6)O(6) and reaction time, on the reduction process were studied. The results showed that 100% of the Cr (VI) could be reduced by C(4)H(6)O(6) in a strong acidic environment under a high reaction temperature. All of the experimental parameters showed positive effects on the reduction process and followed the order [H(2)SO(4)] > [C(4)H(6)O(6)] > reaction temperature > reaction time. A higher concentration of tartaric acid and higher reaction temperature could facilitate the reduction process and reduce reaction time.