文献类型：期刊文献

中文题名：臭氧-SBR-臭氧组合工艺处理石化反渗透浓水

英文题名：Ozone-SBR-Ozone Combined Process for Treating Petrochemical Reverse Osmosis Concentrate

作者：尹建平[1];王远[1];王锋[2];金锡标[1];邱兆富[1]

机构：[1]华东理工大学资源与环境工程学院,上海200237;[2]索尔维投资有限公司,上海201108

年份：2025

卷号：41

期号：15

起止页码：135

中文期刊名：中国给水排水

外文期刊名：China Water & Wastewater

收录：;北大核心:【北大核心2023】；

语种：中文

中文关键词：石化废水;反渗透浓水;臭氧氧化;SBR

外文关键词：petrochemical wastewater;reverse osmosis concentrate;ozonation;SBR

摘要：采用O_(3)-SBR-O_(3)组合工艺处理石油化学工业反渗透浓水(ROC),考察了废水初始pH、O_(3)浓度和反应时间对O_(3)氧化效果的影响,以及O_(3)预氧化时间对SBR处理效率的影响,并利用三维荧光光谱(EEM)和傅里叶红外光谱(FTIR)探讨了有机物去除机理。结果表明,相比单独SBR,在初始pH为6.98(原水pH)、O_(3)浓度为30 mg/L、预氧化时间为60 min的条件下,O_(3)-SBR工艺对COD的去除率提高了42.5%。O_(3)-SBR出水经O_(3)深度处理90 min后,出水COD、TOC、NH3-N和TN浓度分别为58、18、0.50和2.40 mg/L,满足《石油化学工业污染物排放标准》(GB 31571—2015)要求。EEM结果表明,O_(3)可以去除废水中原有的以及生化后产生的类富里酸和类腐殖酸。FTIR结果表明,O_(3)预氧化可以去除部分酚类和胺类物质,降低废水毒性,提高废水的可生化性。生物处理会生成多糖、酚类、氨基酸类化合物和腐殖酸衍变的芳香族化合物等代谢产物;O_(3)深度处理可以去除溶解性微生物代谢产物,并将芳香族和脂肪族类化合物转化为酯类化合物。
The petrochemical reverse osmosis concentrate(ROC)was treated using a combined ozone-sequencing batch reactor-ozone(O_(3)-SBR-O_(3))process.The effects of initial wastewater pH,O_(3) concentration,and reaction time on the oxidation efficiency were systematically investigated.Additionally,the impact of pre-oxidation duration with O_(3) on the treatment efficiency of the SBR was analyzed.Three-dimensional fluorescence spectroscopy(EEM)and Fourier infrared spectroscopy(FTIR)were employed to elucidate the mechanism of organic matter removal.Compared with SBR alone,under the conditions of initial raw wastewater pH of 6.98,O_(3) concentration of 30 mg/L,and pre-oxidation time of 60 minutes,the COD removal efficiency achieved by the O_(3)-SBR process increased by 42.5%.Following 90 minutes of advanced O_(3) treatment of the effluent from the O_(3)-SBR process,COD,TOC,NH3-N and TN in the effluent were reduced to 58 mg/L,18 mg/L,0.50 mg/L and 2.40 mg/L,respectively,which complied with the requirements specified in Emission Standard of Pollutants for Petroleum Chemical Industry(GB 31571-2015).The EEM results indicated that O-effectively removed both the original fulvic acid and humic acid present in the wastewater,as well as those generated during subsequent biochemical processes.According to the FTIR analysis,O_(3) pre-oxidation could eliminate certain phenolic and amine compounds,thereby reducing wastewater toxicity and enhancing its biodegradability.Biological treatment could produce metabolic byproducts,including polysaccharides,phenols,amino acid derivatives,and aromatic compounds originating from humic acid.The O_(3) advanced treatment process effectively removed soluble microbial products while facilitating the transformation of aromatic and aliphatic compounds into ester compounds.