陶粒填料-Fenton工艺处理造纸废水的研究  

Study on the Treatment of Papermaking Wastewater by Ceramsite Filler-Fenton Process

作　　者：罗清 张巧霞 张安龙 薛伟 赵登 程丙军 LUO Qing;ZHANG Qiaoxia;ZHANG Anlong;XUE Wei;ZHAO Deng;CHENG Bingjun(College of Light Industry Science and Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science&Technology,Xi’an,Shaanxi Province,710021;College of Environmental Science and Engineering,Shaanxi University of Science&Technology,Xi’an,Shaanxi Province,710021;Xi’an Longhua Environmental Protection Technology Co.,Ltd.,Xi’an,Shaanxi Province,710019)

机构地区：[1]陕西科技大学轻工科学与工程学院,轻化工程国家级实验教学示范中心,陕西西安710021 [2]陕西科技大学环境科学与工程学院,陕西西安710021 [3]西安隆华环保技术有限公司,陕西西安710019

出　　处：《中国造纸》2021年第5期23-29,共7页China Pulp & Paper

摘　　要：本研究采用陶粒填料-Fenton工艺对生化处理后的造纸废水进行深度处理,以COD去除率和色度去除率为考察指标。通过单因素和正交实验得出最佳工艺条件,随后对比了相同反应条件下常规Fenton工艺与陶粒填料-Fenton工艺的处理效果,以及相同COD去除率下2种工艺的加药量。结果表明,陶粒填料-Fenton工艺最佳条件为:初始pH值=4,m(COD)∶m(H_(2)O_(2))=1∶1.5,n(Fe^(2+))∶n(H_(2)O_(2))=3∶5,陶粒填料投加量150 g/L,反应时间30 min。在相同反应条件下,2种工艺对CODCr去除效果相近,均达70%以上,对色度去除效果明显,去除率高于80%;相同COD去除率下,与常规Fenton工艺相比,陶粒填料-Fenton工艺可节省66.7%的FeSO4和16.7%的H2O2。因此,采用陶粒填料-Fenton工艺深度处理造纸废水可节省试剂加入量从而达到降低成本的目的。This study proposed the use of ceramsite filler-Fenton process for advanced treatment of papermaking wastewater after biochemical treatment,with the COD and chromaticity removal rates as evaluation indicators.The optimal process conditions were studied through single factor and orthogonal experiments,and the treatment efficiency of the conventional Fenton process and the ceramsite filler-Fenton process were compared under the same reaction conditions,and the chemical dosage of the two processes were also compared under the same treatment efficiency.The optimum processing conditions were pH value=4,m(COD)∶m(H_(2)O_(2))=1∶1.5,n(Fe^(2+))∶n(H_(2)O_(2))=3∶5,ceramsite filler dosage of 150 g/L and reaction time of 30 min.At the same conditions,the two different processes had similar CODCr removal rate that were more than 70%,two different processes had obvious chroma removal rate of hat was more than 80%.However,under the same COD removal rate,compared with the conventional Fenton process,the ceramsite filler-Fenton process could save 66.7%FeSO4 and 16.7%H2O2.Thus,adopting ceramsite filler-Fenton process for advanced treatment of papermaking wastewater could achieve the purpose of reducing costs.

关 键 词：造纸废水 陶粒填料-Fenton工艺 COD去除率 

分 类 号：X793[环境科学与工程—环境工程]