Study On The Experiment About Preparing Composite CLO₂ And Dealing With Industrial Circulating Cooling Water

In this paper, the new ways and the best matching of the mixture is confirmed, the influencing factors which affect the ClO₂'yield are observed and the best experimental conditions are confirmed, then the best matching'mixture is used to deal with the industrial circulating cooling water , the best experimental conditions and the quantity of the mixture.The the major and minor relationship of these factors are confirmed by the orthogonal experiment, at the same time, the best combination of experimental factors are firmed.The result of this experiment indicates that the mixture is effective to the bacterial population and the turbidity in the industrial circulating cooling water.First of all, the rate of ClO₂ yieled by the mixture is chected up, and many factors concluding the matching and the quantity of the mixture,the quantity of the reactive water,reactive time,blowing time,reactive temperature,catalytic agent are reviewed.The result indicate that when the Fe2(SO4)3 is reducer,Fe2(SO4)3 and NaClO₂ are 0.7g,the reactive water is160mL,reactive temperature is 70℃,reactive time is 12min,the quantity of the catalytic agent is 1.5g,the yield of ClO₂ can reach 66%. The major and minor relationship of these factors are the same.Then, the best matching mixture is used to deal with the industrial circulating cooling water.The main experimental factors contain reactive temperature,stirring rate,pH and mixing time.The best experimental conditions are confirmed by single factor experiment,the effect is chected by removal of the bacteria and turbidity. The result of the experiment indicates that when the temperature is 40℃,mixing speed is 70r/min,pH is 5 and the mixing time is 10min, the best effect of the experiment can reach 42.64%.At the end, the factors'significances are observed by the orthogonal experiment, then the primary and secondary of the significance are confirmed, after this, the best combination is confirmed, At last,the removal of the bacteria and turbidity are tested in this condition. The experimental result is: pH is distinct to the removal of the the bacteria and the significance is 0.512, the reactive temperature is next and the significance is 0.706, the mixing time'and the mixing speed'significance are 0.710 and 0.744.In the analyse of single element experiment, when the pH is 6, mixing time is 20min, reactive temperature is 35℃, mixing speed is 60r/min, the experimental effect will be best.In the analysis of orthogonal experiment, we can obtain that on the condition of A₁B₂C₁D₄, mixing time is10min,temperature is 25℃, pH is 5, mixing speed is 90r/min, the removal rate of bacteria is 100% and the removal rate of turbidity is 94%.