【作者】 朱亦仁； 孟庆华； 赵云云； 李爱梅； 于昕；

【Author】 Zhu Yiren~1 Meng qinghua Zhao Yunyun Li Aimei Yu Xin (College of Chemistry and Chemical engineering,Xu zhou Normal University;Xu zhou,China Jiangsu 221116)

【机构】 徐州师范大学化学化工学院；

【摘要】 以纳米 CuO 为催化剂,高压汞灯为光源,对造纸废水进行光催化降解实验研究。研究结果表明,UV/H₂O_/CuO 体系能有效快速地降低造纸废水的 COD。通过正交实验分析了所选定各影响因素之间的关系,它们对废水 COD 去除率的影响大小顺序为:溶液 pH 值)光照时间)CuO 用量;考察了 CuO 用量、H₂O₂用量、pH 值、反应时间等因素对降解效果的影响,得出的最佳的降解条件为:室温下纳米 CuO 粉体用量为1.00克/升,30%H₂O₂用量为2‰（v/v）,pH=3.0,300瓦高压汞灯光照3小时废水的 COD 去除率达到92%。更多还原

【Abstract】 The pHoto-catalytic degradation of paper mill wastewater with nano-CuO as pHotocatalyst and high-voltage mercury lamp as light source was studied.The results showed that a heterogeneous pHotocatalyst system of UV/CuO/H₂O₂ could effectively decrease COD in wastewater.Main influencing factors were cross-examined and their degree of influence to COD_Crremoval rate was rated as the following:solution pH value >irradiation time>CuO amount.After further investigation of the amount of CuO and H₂O₂,pH value and irradiation time,the optimum degradation conditions were determined as:under room temperature,the amount of nano-CuO was 0.02g/L and H₂O₂ was 2‰（v/v）,pH=3.0 and irradiation time was 3h with a 300W high-pressure mercury lamp.Under the above conditions,the COD removal rate of wastewater was 92%.更多还原