富马酸废水降解过程生物毒性物质的影响分析  

Analysis of the influence of biological toxic substances in the degradation of fumaric acid wastewater

作　　者：赵朋飞 王华俊 张雄 ZHAO Peng-fei;WANG Hua-jun;ZHANG Xiong(Wuhan Huazi Tonghui Technology Limited Company,Wuhan 430074,China;Wuhan Hongyiyuan Steward Environmental Technology Limited Company,Wuhan 430074,China)

机构地区：[1]武汉华咨同惠科技有限公司,武汉430074 [2]武汉鸿翊源管家环境科技有限公司,武汉430074

出　　处：《湖北农业科学》2022年第6期139-142,147,共5页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(2117326);湖北省自然科学基金重点项目(2013CFA107);荆州市科技项目(2019EC61-14)。

摘　　要：采用组合工艺“三维电化学-A/O”处理模拟及实际富马酸废水,考察生物毒性物质硫脲对降解过程的影响。结果表明,优化参数条件下两种废水出水COD、氨氮、硫脲均符合《污水综合排放标准》一级标准,但实际废水在“三维电化学+厌氧+好氧”3个阶段的降解率均低于模拟废水;沿程三维荧光图谱显示,三维电化学处理后模拟废水峰C(Ex/Em=250~400/380~500 nm)荧光强度增强,实际废水峰C荧光几乎不变;IC厌氧出水实际废水峰C强度与模拟废水相当,均衍生出类富里酸峰D(Ex/Em=200~250/380~500 nm)、类酪氨酸芳香族蛋白质峰E(Ex/Em=200~250/200~330 nm)、溶解性微生物有机物峰B(Ex/Em=250~280/200~380 nm)和类色氨酸芳香族蛋白质峰A(Ex/Em=200~250/330~380 nm)等有机物;好氧出水实际废水中含有一定强度的峰B,而模拟废水峰B基本消失。“三维电化学-A/O”具备处理富马酸废水的潜力,而活性污泥呼吸抑制速率模型计算的EC50为127.73 mg/L,远大于出水硫脲浓度(46.52 mg/L)。The combined process“three-dimensional electrochemical-A/O”was used to treat simulated and actual fumaric acid wastewater,and the effect of biologically toxic substance thiourea on the degradation process was investigated.The results showed that under the optimized parameters,the COD,ammonia nitrogen,and thiourea of the two wastewater effluents met the first-level standard of the“Integrated Wastewater Discharge Standard”,but the degradation rate of the actual wastewater in the three stages of“three-dimensional electrochemistry+anaerobic+aerobic”was lower than simulated wastewater;Along the way,the three-dimensional fluorescence spectrum showed that after three-dimensional electrochemical treatment,the fluorescence intensity of simulated wastewater peak C(Ex/Em=250~400/380~500 nm)was enhanced,and the fluorescence of actual wastewater peak C was almost unchanged;The intensity of IC anaerobic effluent actual wastewater peak C was equivalent to that of simulated wastewater,and both fulvic acid-like peak D(Ex/Em=200~250/380~500 nm)and tyrosine-like aromatic protein peak E(Ex/Em=200~250/200~330 nm),soluble microbial organic matter peak B(Ex/Em=250~280/200~380 nm)and tryptophan-like aromatic protein peak A(Ex/Em=200~250/330~380nm)and other organic matter were derived;The actual wastewater of the oxygen effluent contained a certain intensity peak B,while the simulated wastewater peak B basically disappeared.“Three-dimensional electrochemistry-A/O”had the potential to treat fumaric acid wastewater,and the EC50calculated by the activated sludge respiration inhibition rate model was 127.73 mg/L,which was much higher than the concentration of thiourea in the effluent(46.52 mg/L).

关 键 词：生物毒性废水 组合工艺 降解效果 三维荧光分析 呼吸抑制速率 

分 类 号：X703.1[环境科学与工程—环境工程]