锰砂/H_(2)O_(2)/O_(3)体系预处理高浓度甲醛废水的中试研究  

Pilot Scales of Manganese Sand/H_(2)O_(2)/O_(3) Pretreatment Process of High Concentration of Formaldehyde Wastewater

作　　者：曾美瑢 杨万达 韩卓 乔玉芬 张艺翔 明银安 ZENG Meirong;YANG Wanda;HAN Zhuo;QIAO Yufen;ZHANG Yixiang;MING Yin'an(School of Chemistry and Environmental Engineering,Wuhan Institute of Technology,Wuhan 430205,China;Wuhan Xitai Environmental Protection Engineering Co.,Wuhan 430051,China)

机构地区：[1]武汉工程大学化学与环境工程学院,湖北武汉430205 [2]武汉希泰环保工程有限公司,湖北武汉430051

出　　处：《武汉工程大学学报》2023年第2期192-195,226,共5页Journal of Wuhan Institute of Technology

基　　金：武汉工程大学校长基金(XZJJ2021071)。

摘　　要：为了解决石灰法处理甲醛废水产污量多、管道易结垢及出水色度高等问题,采用锰砂/H_(2)O_(2)/O_(3)催化氧化体系对某药业公司高浓度甲醛废水进行中试研究,考查影响催化效果的反应条件。结果表明:在臭氧量为100 g/h、pH=5、反应时间为2 h、双氧水投加量为0.30%、反应温度为40℃、锰砂投加量为容器体积的60%条件下,处理效果达到最佳,甲醛去除率可达87.3%,化学需氧量去除率可达60.0%,色度去除率可达95.0%。该体系利用锰砂和双氧水联合催化臭氧氧化处理甲醛废水,降低有机污染物的含量,具有氧化效率高、操作简便、无二次污染等优点,以期为高浓度甲醛废水处理提供参考。To solve the problems of high sludge production,easy scaling in pipes and high colour of effluent from treating formaldehyde a wastewater with lime,a pilot study was conducted to treat the wastewater of a pharmaceutical company with a high concentration of formaldehyde using the manganese sand/H_(2)O_(2)/O_(3) catalytic oxidation system,where the reaction conditions affecting the catalysis were investigated.The results show that the removal rates of formaldehyde,chemical oxygen demand and chromaticity reach 87.3%,60.0%and 95.0%respectively when the ozone dosage is 100 g/h,reaction time is 2 h,the hydrogen peroxide dosage is 0.30%of the wastewater,reaction temperature is 40℃and the manganese sand dosage is 60%of the container.The content of organic pollutants is significantly reduced after the formaldehyde wastewater is treated by the manganese sand/H_(2)O_(2)/O_(3) catalytic oxidation system.This technology has the advantages of high oxidation efficiency and simple operation without secondary pollution,which can provide a reference for the treatmentof high concentration formaldehyde wastewater.

关 键 词：锰砂/H_(2)O_(2)/O_(3)体系 催化氧化 甲醛废水 中试 

分 类 号：X787[环境科学与工程—环境工程]