Abstract: Potato starch wastewater is always generated seasonally rather than continuously,which causes many difficulties in the application of biological treatment methods.The conventional physicochemical treatment method exhibits low efficiency in treating potato starch wastewater,leading to a large burden for subsequent treatment.In this paper,γ-alumina is used as carrier and active component Cu is added to prepare a heterogeneous high-efficiency catalyst,which can decompose rapidly H2O2 to generate a large amount of·OH free radicals and improve the treatment effect of wastewater.The main factors affecting the catalyst reaction and the optimal reaction conditions are investigated through single factor experiments.It is shown that the highest removal rate of COD and turbidity in potato starch wastewater can reach 87.57% and 97.89%,respectively under the best conditions that the dosages of catalyst and oxidant is 2.0 g/100 mL and 5 mL/100 mL respectively,the reaction temperature is set at 70℃,the reaction lasts for 45 min and pH is set at 2.This method shows an ideal effect on the treatment of potato starch wastewater,and can provide reference for the prevention and control of wastewater pollution in potato starch producers.
薛权峰, 张有贤, 徐腾. 非均相类Fenton催化剂处理马铃薯淀粉废水的实验研究[J]. 现代化工, 2019, 39(4): 149-152.
XUE Quan-feng, ZHANG You-xian, XU Teng. Experimental study on treatment of potato starch wastewater by heterogeneous Fenton-like catalyst. Modern Chemical Industry, 2019, 39(4): 149-152.
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