吸附-S/A/SMBBR工艺处理含酚高纯溶剂生产废水
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摘要
以树脂作为吸附剂,采用吸附-S/A/SMBBR组合工艺处理含酚高纯溶剂生产废水。试验结果表明,当上柱液流速为1 BV/h、批吸附量为20 BV时,吸附预处理效果良好,运行稳定,出水酚浓度适合后续生化处理范围,以1 BV/h的5%氢氧化钠溶液进行脱附,用量3 BV后脱附效果良好;在生化处理阶段,当进水酚浓度为15~45 mg/L、水力停留时间为7 d时,对酚的平均去除率在99%以上,且对冲击负荷具有较强的适应能力。可见,吸附-S/A/SMBBR组合工艺对含酚高纯溶剂生产废水的处理效果极佳,出水酚浓度可降低至0.5 mg/L以下,满足《石油化学工业污染物排放标准》(GB 31571—2015)的要求。
The resin adsorption-S/A/SMBBR integrated technology was proposed and tested in a high purity solvents production facility. The results showed that the effluent was clear,and the phenol concentration was suitable for the subsequent biochemical treatment,when the sample flow velocity and batch adsorption capacity were set to 1 BV/h and 20 BV,respectively. Desirable desorption was achieved with 5% sodium hydroxide solution flowing at 1 BV/h,and the adsorption capacity was restored to 3 BV.In the biochemical treatment phase,when the influent phenol concentration ranged from 15 mg/L to 45 mg/L,and the hydraulic retention time( HRT) was 7 days,the average phenol removal rate was more than 99%. Meanwhile,the system demonstrated strong resistance to loading shocks. The study achieved excellent results in the treatment of high concentration phenolic wastewater from high purity solvents production processes with its effluent phenol concentration being reduced to less than 0. 5 mg/L,which had met the standards as specified in the Emission Standard of Pollutants for Petroleum Chemistry Industry(GB 31571-2015).
The resin adsorption-S/A/SMBBR integrated technology was proposed and tested in a high purity solvents production facility. The results showed that the effluent was clear,and the phenol concentration was suitable for the subsequent biochemical treatment,when the sample flow velocity and batch adsorption capacity were set to 1 BV/h and 20 BV,respectively. Desirable desorption was achieved with 5% sodium hydroxide solution flowing at 1 BV/h,and the adsorption capacity was restored to 3 BV.In the biochemical treatment phase,when the influent phenol concentration ranged from 15 mg/L to 45 mg/L,and the hydraulic retention time( HRT) was 7 days,the average phenol removal rate was more than 99%. Meanwhile,the system demonstrated strong resistance to loading shocks. The study achieved excellent results in the treatment of high concentration phenolic wastewater from high purity solvents production processes with its effluent phenol concentration being reduced to less than 0. 5 mg/L,which had met the standards as specified in the Emission Standard of Pollutants for Petroleum Chemistry Industry(GB 31571-2015).
引文
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[12]师永健,张耀斌,全燮,等.移动床生物膜反应器用于苯酚废水处理的性能研究[J].环境科学学报,2013,33(1):30-35.Shi Yongjian,Zhang Yaobin,Quan Xie,et al.Performance of moving bed biofilm reactor in removal of phenol from artificial waste water[J].Acta Scientiae Circumstantiae,2013,33(1):30-35(in Chinese).
[13]樊瑜.耐高浓度苯酚菌株的筛选及其降解特性研究[D].西安:西安建筑科技大学,2012.Fan Yu.Screening of High-phenol-tolerance Strain and Studying of Its Phenol-degrading Abilities[D].Xi'an:Xi'an University of Architecture and Technology,2012(in Chinese).
[2]范荣桂,高海娟,李贤,等.含酚废水综合治理新技术及其研究进展[J].水处理技术,2013,39(4):5-8,19.Fan Ronggui,Gao Haijuan,Li Xian,et al.New techniques and research progress on phenol-containing wastewater treatment[J].Technology of Water Treatment,2013,39(4):5-8,19(in Chinese).
[3]Busca G,Berardinelli S,Resini C,et al.Technologies for the removal of phenol from fluid streams:A short review of recent developments[J].J Hazard Mater,2008,160(2/3):265-288.
[4]Brwal A,Chaudhary R.To study the performance of biocarriers in moving bed biofilm reactor(MBBR)technology and kinetics of biofilm for retrofitting the existing aerobic treatment systems:A review[J].Rev Environ Sci Bio/Technol,2014,13(3):285-299.
[5]Calderón K,Martin-Pascual J,Poyatos J M,et al.Comparative analysis of the bacterial diversity in a lab-scale moving bed biofilm reactor(MBBR)applied to treat urban wastewater under different operational conditions[J].Bioresour Technol,2012,121:119-126.
[6]苑泉,王海燕,刘凯,等.污水厂尾水MBBR反硝化深度脱氮填料比较[J].环境科学学报,2015,35(3):713-721.Yuan Quan,Wang Haiyan,Liu Kai,et al.Comparison of the MBBR denitrification carriers for advanced nitrogen removal of wastewater treatment plant effluent[J].Acta Scientiae Circumstantiae,2015,35(3):713-721(in Chinese).
[7]邓世斌,朱浩君,张东伟.生物膜填料[P].中国专利:201330132291.6,2013-12-04.Deng Shibin,Zhu Haojun,Zhang Dongwei.Biological Membrane Filler[P].China:201330132291.6,2013-12-04(in Chinese).
[8]曹艳晓,龙腾锐,黄祥荣,等.水解/AMBBR/好氧工艺和传统A/O工艺处理低碳源污水的对比研究[J].环境工程学报,2010,4(12):2776-2780.Cao Yanxiao,Long Tengrui,Huang Xiangrong,et al.Comparative study of low carbon source wastewater treatment by hydrolysis acidification/anoxic moving biological biofilm reactor/aerobic process and conventional anoxic/aerobic process[J].Chinese Journal of Environmental Engineering,2010,4(12):2776-2780(in Chinese).
[9]祁晓静,段梅,段文生,等.树脂吸附法处理高浓度邻甲酚工业废水研究[J].应用化工,2009,38(11):1652-1655.Qi Xiaojing,Duan Mei,Duan Wensheng,et al.Study on the treatment of industrical wastewater containing high concentration o-cresol with adsorption resin[J].Applied Chemical Industry,2009,38(11):1652-1655(in Chinese).
[10]袁辉洲,邹原,张鹏,等.AMBBR工艺处理城市污水[J].环境工程,2012,30(1):30-34,82.Yuan Huizhou,Zou Yuan,Zhang Peng,et al.Treating urban sewage with anaerobic MBBR process[J].Environmental Engineering,2012,30(1):30-34,82(in Chinese).
[11]李卫平,时屹然,朱浩君,等.SMBBR处理聚氯乙烯废水的2种方式的探究[J].水处理技术,2015,41(4):95-98.Li Weiping,Shi Yiran,Zhu Haojun,et al.SMBBR two ways of treatment of wastewater from PVC research[J].Technology of Water Treatment,2015,41(4):95-98(in Chinese).
[12]师永健,张耀斌,全燮,等.移动床生物膜反应器用于苯酚废水处理的性能研究[J].环境科学学报,2013,33(1):30-35.Shi Yongjian,Zhang Yaobin,Quan Xie,et al.Performance of moving bed biofilm reactor in removal of phenol from artificial waste water[J].Acta Scientiae Circumstantiae,2013,33(1):30-35(in Chinese).
[13]樊瑜.耐高浓度苯酚菌株的筛选及其降解特性研究[D].西安:西安建筑科技大学,2012.Fan Yu.Screening of High-phenol-tolerance Strain and Studying of Its Phenol-degrading Abilities[D].Xi'an:Xi'an University of Architecture and Technology,2012(in Chinese).