菌藻颗粒污泥对苯酚废水的去除效能和机理研究  

Removal Efficiency and Mechanism of Phenol Wastewater by Algae-Bacteria Granular Sludge

作　　者：陈庆峰 Chen Qingfeng(China Urban Construction Research Institute Limited Hubei Branch,Wuhan 430040,China)

机构地区：[1]中国城市建设研究院有限公司湖北分院,湖北武汉430040

出　　处：《皮革制作与环保科技》2024年第14期5-7,共3页Leather Manufacture and Environmental Technology

摘　　要：苯酚废水来源广泛,对环境造成严重威胁。利用菌藻颗粒污泥系统(MBGS)处理苯酚废水的结果表明:该系统对废水中化学需氧量(COD)、氨氮(NH_(4)^(+)-N)、硝氮(NO_(3)^(-)-N)和总无机氮的去除率分别为71.66%、74.67%、66.92%和67.19%,且长期运行稳定,MBGS生物量(MLSS)和EPS(胞外聚合物)分别由原来的1880 mg/L和45.92 mg/g VSS升至2500 mg/L和89.45 mg/g VSS,证明MBGS对苯酚具有优秀的抗毒和去除性能,且陶厄式菌属(Thauera)和黄杆菌属(Flavobacterium)是优势菌属。通过液相色谱-质谱联用技术(LC-MS)检测出水物质,发现较高浓度的链状易降解有机物,说明MBGS对苯酚废水的COD去除是苯环开环。Phenol wastewater comes from a wide range of sources and poses a serious threat to the environment.A mycobacterial granular sludge system(MBGS)was utilized to treat phenol wastewater,the results showed that the removal rates of chemical oxygen demand(COD),ammonia nitrogen(NH_(4)^(+)-N),nitrate nitrogen(NO_(3)^(-)-N)and total inorganic nitrogen by MBGS were 71.66%,74.67%,66.92%and 67.19%,respectively.The biomass(MLSS)and EPS(extracellular polymers)of MBGS increased from 1880 mg/L and 45.92 mg/gvss to 2500 mg/L and 89.45 mg/gvss,respectively,which proved that MBGS had excellent antitoxicity and removal performance for phenol.Thauera and Flavobacterium were the dominant genera.Detection of effl uent substances by liquid chromatography-mass spectrometry(LC-MS)revealed higher concentrations of chain-like readily degradable organics,suggesting that the COD removal of phenol wastewater by MBGS is through benzene ring opening.

关 键 词：菌藻颗粒污泥 苯酚废水 细菌群落结构:苯酚降解途径 

分 类 号：TS5[轻工技术与工程—皮革化学与工程]