Abstract:

Because of the Cr6+ ion having the potential of endangering the environment and harming the health of people in the filtrate of chromium residue, so it is necessary to treat it. Based on the study of single factor experiment, ferrous sulfate drug ratio, pH, stir speed and reaction time were studied on the effect of chromium-containing waste water treatment. The results showed that ferrous sulfate drug ratio was the most obvious influential factor among the all five influencing factors. Through the process of single factor law of process conditions, the author analyzed and the experimental conditions for optimum technological conditions for strategy was: more than 80, pH for 7-8, the reaction time for 20 min, stirring speed for fast mixing, stirring time for 10 min, the results of the experiments of chromium-containing waste water treatment provided theoretical basis.