电渗析+铁碳+生化组合法处理苯酚丙酮废水
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摘要
采用电渗析+铁碳+生化组合处理法对实际苯酚丙酮废水的处理效果和影响因素进行实验研究。结果表明,电渗析汲盐液浓度及膜堆电压对废水脱盐效率及能耗有显著影响,在汲盐液初始质量浓度为20 g/L Na_2SO_4、电压为14 V条件下,经210 min废水盐质量浓度从66.7 g/L降到8 g/L左右,脱盐率达到88%,具有较高的效率和经济性;脱盐后的废水经1.5 h铁炭微电解处理,BOD5/COD提高到0.31,最后生化处理出水COD约为130 mg/L,组合处理法的COD总去除率达到96.7%。
The treatment effect and influence factors of the combining treatment method containing electrodialysis,iron carbon and biochemistry on actual phenol acetone wastewater treatment effect and influence factors are studied. The condition experiment results indicate that initial concentration of electrodialysis swabbing solution and membrane reactor voltage have significant influences on desalting efficiency and energy consumption. When the voltage is 14 V and the initial mass concentration of electrodialysis swabbing solution is 20 g/L of Na_2SO_4,then the salinity in wastewater decreases from 66. 7 g/L to around 8 g/L after 210 min,indicating a desalination rate of 88%. The wastewater after desalination is then treated by iron carbon micro-electrolysis for 1. 5 h,BOD5/COD increases to 0. 31. After the final biochemical treatment,the effluent COD is around 130 mg/L.In a sum,the COD removal rate can reach 96. 7% by using the combining treatment method.
The treatment effect and influence factors of the combining treatment method containing electrodialysis,iron carbon and biochemistry on actual phenol acetone wastewater treatment effect and influence factors are studied. The condition experiment results indicate that initial concentration of electrodialysis swabbing solution and membrane reactor voltage have significant influences on desalting efficiency and energy consumption. When the voltage is 14 V and the initial mass concentration of electrodialysis swabbing solution is 20 g/L of Na_2SO_4,then the salinity in wastewater decreases from 66. 7 g/L to around 8 g/L after 210 min,indicating a desalination rate of 88%. The wastewater after desalination is then treated by iron carbon micro-electrolysis for 1. 5 h,BOD5/COD increases to 0. 31. After the final biochemical treatment,the effluent COD is around 130 mg/L.In a sum,the COD removal rate can reach 96. 7% by using the combining treatment method.
引文
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[2]戴本慧.苯酚丙酮废水中有机污染物组分解析及分析方法研究[D].天津:河北工程大学,2013.
[3]许磊,焦庆周,翁世兵,等.萃取-催化氧化处理工业苯酚废水[J].合肥工业大学学报:自然科学版,2013,36(3):357-360.
[4]Abdelwahab O,Amin N K,Elashtoukhy E S.Electrochemical removal of phenol from oil refinery wastewater[J].Journal of Hazardous Materials,2009,163(2/3):711-716.
[5]Li C,Xu M,Sun X,et al.Chemical modification of amberlite XAD-4by carbonyl groups for phenol adsorption from wastewater[J].Chemical Engineering Journal,2013,229(8):20-26.
[6]Shet A,Vidya S K.Solar light mediated photocatalytic degradation of phenol using Ag core-Ti O2,shell(Ag@Ti O2)nanoparticles in batch and fluidized bed reactor[J].Solar Energy,2016,127:67-78.
[7]杨婧晖.曝气生物流化床处理高负荷含酚废水的研究[D].西安:长安大学,2009.
[8]李耀辰,鲍建国,周旋,等.高盐度有机废水对生物处理系统的影响研究进展[J].环境科学与技术,2006,29(6):109-111.
[9]王新刚,关卫省,吕锡武.水解酸化一生物接触氧化处理高盐含油废水研究[J].工业水处理,2006,26(10):43-45.
[10]康群,马文臣,许建民,等.高盐浓度对工业废水生化处理的影响研究[J].环境工程学报,2005,6(8):42-45.
[11]高蕾.水产品加工废水含盐量对接触氧化工艺处理效果的影响研究[D].青岛:青岛理工大学,2013.
[12]冯叶成,占新民,文湘华,等.活性污泥处理系统耐含盐废水冲击负荷性能[J].环境科学,2000,21(1):106-108.
[13]陈润华.铁炭微电解法处理EDTA-Cu配合废水工艺研究[D].长沙:中南大学,2010.
[14]吕倩倩.苯酚丙酮废水活性污泥毒性物质识别与去除技术研究[D].天津:河北工程大学,2014.