臭氧协同水力空化处理造纸漂白废水对生物处理的影响  

Effect of Hydro-cavitation and Ozone Treatment on Biological Treatment of Papermaking Bleaching Wastewater

作　　者：刘忠明[1] 孟霞[1] 王守娟[1] 孔凡功[1,2] 王永梅 王希尧 彭吉成 LIU Zhongming;MENG Xia;WANG Shoujuan;KONG Fangong;WANG Yongmei;WANG Xiyao;PENG Jicheng(State Key Laboratory of Biobased Material and Green Papermaking,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;Shandong Guanghua Paper Co.Ltd.,Feixian 273401,China;Shandong Huanfa Technology Development Co.,Ltd,Jinan 250000,China)

机构地区：[1]齐鲁工业大学(山东省科学院)生物基材料与绿色造纸国家重点实验室,山东济南250353 [2]山东光华纸业集团有限公司,山东费县273401 [3]山东环发科技开发有限公司,山东济南250000

出　　处：《造纸科学与技术》2021年第5期15-19,共5页Paper Science & Technology

基　　金：山东省重大科技创新工程(2019JZZY010407,2019JZZY010304);山东省自然科学基金(ZR2020MC156);国家自然科学基金面上项目(31971605,31800499)。

摘　　要：造纸漂白废水中含有大量木素衍生物等难生物降解的有机污染物,导致生物处理效果不佳,生物处理出水不能达到国家排放要求。将水力空化技术协同臭氧处理高浓度漂白废水,探究处理后的漂白废水对后期生物处理的影响。臭氧协同水力空化处理有效降低漂白废水的COD和BOD,其去除率分别为:78.5%和67.7%;并改善漂白废水的生化降解性能,可生化性BOD/COD值提高50.0%。臭氧协同水力空化处理漂白废水的厌氧抑制作用研究结果表明,厌氧过程的抑制指数明显降低至2.19,有效提高漂白废水的厌氧处理效果。臭氧协同水力空化处理漂白废水对好氧微生物抑制作用的研究结果表明,其单位污泥耗氧量最高,可生化性最好,为漂白废水的高效生化处理奠定基础。Papermaking bleaching wastewater contains a large amount of lignin derivatives and other difficult to biodegradable organic pollutants, resulting in poor biological treatment effect, which could not meet national discharge requirements. In this study, the hydrodynamic cavitation technology and ozone were used to treat high-concentration bleaching wastewater, and the effect of the treated bleaching wastewater on the later biological treatment was explored. Ozone and hydrodynamic cavitation treatment could effectively reduce the COD and BOD of bleaching wastewater, and the removal rates were 78.5% and 67.7%, respectively;which improved the biochemical degradation performance of bleaching wastewater, and the biodegradable BOD/COD value was increased by 50.0%. The results of research on the anaerobic inhibition effect of ozone and hydrodynamic cavitation treatment of bleaching wastewater showed that the inhibition index of the anaerobic process was significantly reduced to 2.19, effectively improving the anaerobic treatment effect of bleaching wastewater. The results of research on the inhibition of aerobic microorganisms in the treatment of bleaching wastewater by hydraulic cavitation and ozone exhabited it has the highest oxygen consumption per sludge and the best biodegradability, which laid the foundation for the efficient biochemical treatment of bleaching wastewater.

关 键 词：漂白废水 水力空化 臭氧 可生化性 

分 类 号：X793[环境科学与工程—环境工程]