零价铁强化黄连素废水生物处理的影响研究  

Effect of Zero Valent Iron on Biological Treatment of Berberine Wastewater

作　　者：刁茹琦 薛罡[1,2] 陈红 于鑫[1] 王晓暖 陈善平 DIAO Ruqi;XUE Gang;CHEN Hong;YU Xin;WANG Xiaonuan;CHEN Shanping(College of Environmental Science and Engineering,Donghua University,201620;National Engineering Research Center for Dyeing and Finishing of Textiles,201620;Shanghai Environmental Sanitation Engineering Design Institute Co.,Ltd,200232:Shanghai,China)

机构地区：[1]东华大学环境科学与工程学院,201620 [2]国家染整工程技术研究中心,201620 [3]上海环境卫生工程设计院有限公司,上海200232

出　　处：《水处理技术》2022年第3期93-98,共6页Technology of Water Treatment

基　　金：国家自然科学基金(51878136,51878135,52070040);上海市科学技术委员会启明星计划(19QC1400300);上海市国资委技术创新和能级提升项目(2018001)。

摘　　要：以黄连素(BH)废水处理为目标,采用工业废水处理常用的A/O工艺,探究投加零价铁(Fe^(0))对黄连素废水生物处理的影响。该A/O工艺对COD的去除率约为88%,投加Fe^(0)后约为91%,两组BH的降解率均可达98%左右。研究表明,Fe^(0)对水解酸化阶段有机物去除的促进作用较显著,BH+Fe组COD和BH的去除率分别为38%、50%,比BH组分别提高10%、8%左右,且在长期运行过程中处理效率更稳定;好氧阶段BH组及BH+Fe组COD去除率均在85%左右,BH去除率均在96%左右。此外,Fe^(0)可显著提高A段与O段的COD及BH降解速率,且O段的水力停留时间可由14 h减少至8 h。通过GC-MS分析可知,Fe^(0)的投加可使水解酸化段出水中有机物的分子量显著降低,可有效提高废水可生化性,且好氧段出水的有机物分子量亦较低。因此,Fe^(0)可有效提高黄连素废水处理的稳定性及处理效能。The common A/O process for industrial wastewater treatment was proposed to treat the berberine (BH) wastewater treatment,and the effect of the added zero valent iron (Fe^(0)) on the biological treatment of berberine wastewater was explored.The COD removal efficiency of the A/O process was about 88%,the removal efficiency increased 91% after adding Fe^(0).The degradation efficiency of BH in both groups could reach ~98%.The results showed that the Fe^(0) significantly improved the organic matter removal in the hydrolysis acidification stage.The removal efficiencies of COD and BH in the BH+Fe group were 38% and 50%,respectively,which were 10% and 8% higher than that of the single BH group.And the treatment efficiency was more stable in the long-term operation process.In the aerobic stage,the removal efficiencies of COD and BH were about 85% and 96%in both the BH group and BH+Fe group.In addition,the Fe^(0) could significantly increase the degradation rates of COD and BH in the hydrolysis acidification stage and aerobic stage,and the hydraulic retention time could be reduced from 14 h to 8 h in the hydrolysis acidification stage.The results of GC-MS analysis showed that the molecular weight of organics in the effluent of the hydrolytic acidification stage was significantly reduced,and the biodegradability of wastewater was effectively improved.The molecular weight of organic matter in the effluent of the aerobic stage also decreased significantly.Therefore,the Fe^(0) can improve the stability and efficiency of berberine wastewater treatment effectively.

关 键 词：黄连素废水 生物处理 零价铁 去除效率 

分 类 号：X787[环境科学与工程—环境工程]