微生物协同铁屑强化花生壳处理玛瑙染色废水
|
摘要
针对玛瑙染色工业废水中存在着高浓度的Cr(Ⅵ)、SO_4~(2-)和H~+等,提出构造1~#(花生壳)、2~#(花生壳+铁屑)、3~#(花生壳+铁屑+微生物)动态柱模型进行动态试验,探讨铁屑协同微生物强化花生壳处理玛瑙染色废水的效果及产生的COD和TFe释放问题。结果表明,3~#动态柱对玛瑙染色废水中Cr(Ⅵ)、SO_4~(2-)的平均去除率分别为95.87%、66.32%,高于1~#、2~#动态柱的91.19%、28.34%和94.83%、59.55%,具有较强的抗污染负荷变化和p H值提升能力;运行后期3个动态柱出水COD和TFe浓度分别在1 000和10 mg/L以下。对比可见,经微生物协同铁屑强化后的花生壳动态柱对玛瑙染色废水有更好、更稳定的处理效果。
To remove the high concentrations of Cr(Ⅵ),SO_4~(2-) and H~+ from the agate dyeing industrial wastewater,three dynamic column models were built.Column model 1~#was composed of peanut shell only,column model 2~#was composed of peanut shell and granular iron,and column model 3~#was composed of peanut shell,granular iron and microorganism.The effect of biological material enhanced by granular iron/microorganism in the removal of Cr(Ⅵ),SO_4~(2-)and H~+was studied,and the production of COD and TFe was analyzed.The results showed that,column model 3~#was resistant to changes in pollution loading and increases in p H values.Column model 3~#showed average removal rates of 95.87%and66.32%on Cr(Ⅵ)and SO_4~(2-),respectively,which were higher than those of column model 1~#(91.19%and 28.34%)and column model 2~#(94.83%and 59.55%).The concentrations of COD and TFe in all column models were below 1 000 mg/L and 10 mg/L,respectively,in the later treatment period.The peanut shell column model enhanced by microorganism and granular iron demonstrated higher and more stable removal efficiency in the treatment of agate dyeing wastewater.
To remove the high concentrations of Cr(Ⅵ),SO_4~(2-) and H~+ from the agate dyeing industrial wastewater,three dynamic column models were built.Column model 1~#was composed of peanut shell only,column model 2~#was composed of peanut shell and granular iron,and column model 3~#was composed of peanut shell,granular iron and microorganism.The effect of biological material enhanced by granular iron/microorganism in the removal of Cr(Ⅵ),SO_4~(2-)and H~+was studied,and the production of COD and TFe was analyzed.The results showed that,column model 3~#was resistant to changes in pollution loading and increases in p H values.Column model 3~#showed average removal rates of 95.87%and66.32%on Cr(Ⅵ)and SO_4~(2-),respectively,which were higher than those of column model 1~#(91.19%and 28.34%)and column model 2~#(94.83%and 59.55%).The concentrations of COD and TFe in all column models were below 1 000 mg/L and 10 mg/L,respectively,in the later treatment period.The peanut shell column model enhanced by microorganism and granular iron demonstrated higher and more stable removal efficiency in the treatment of agate dyeing wastewater.
引文
[1]Garg U K,Kaur M P,Garg V K.Removal of hexavalent chromium from aqueous solution by agricultural waste biomass[J].J Hazard Mater,2007,140(1/2):60-68.
[2]蔡蕊,宋黎明,庞长泷,等.利用农业废弃物处理水体重金属污染的研究进展[J].中国给水排水,2014,30(24):61-65.Cai Rui,Song Liming,Pang Changlong,et al.Advances in research on agricultural waste material for treatment of heavy metal ions in water[J].China Water&Wastewater,2014,30(24):61-65(in Chinese).
[3]张庆芳,杨国栋,孔秀琴,等.改性花生壳吸附水中Cr6+的研究[J].化学与生物工程,2008,25(2):29-31.Zhang Qingfang,Yang Guodong,Kong Xiuqin,et al.Study on adsorption of Cr6+in water by modified peanut shell[J].Chemistry&Bioengineering,2008,25(2):29-31(in Chinese).
[4]Kieu H T Q,Müller E,Horn H.Heavy metal removal in anaerobic semi-continuous stirred tank reactors by a consortium of sulfate-reducing bacteria[J].Water Res,2011,45(13):3863-3870.
[5]张庆芳,辛佳,孔秀琴,等.改性花生壳处理废水中Cr6+的实验研究[J].花生学报,2008,37(3):16-19.Zhang Qingfang,Xin Jia,Kong Xiuqin,et al.Study on the adsorption of heavy metal with modified peanut shell from waste water[J].Journal of Peanut Science,2008,37(3):16-19.
[6]周隽,翟建平,吕慧峰,等.木屑和花生壳吸附去除水溶液中Cr3+的试验研究[J].环境污染治理技术与设备,2006,7(1):122-125.Zhou Jun,Zhai Jianping,Lv Huifeng,et al.Study on removing Cr3+from aqueous solution by sawdust and peanut husks[J].Techniques and Equipment for Environmental Pollution Control,2006,7(1):122-125(in Chinese).
[7]Al A S,Duvnjak Z.Sorption of cadmium and other heavy metals by pine bark[J].J Hazard Mater,1997,56(1/2):35-51.
[8]邓景衡,余侃萍,肖国光,等.吸附法处理重金属废水研究进展[J].工业水处理,2014,34(11):4-7.Deng Jingheng,Yu Kanping,Xiao Guoguang,et al.Research progress in the treatment of heavy metal wastewater by adsorption[J].Industrial Water Treatment,2014,34(11):4-7(in Chinese).
[9]狄军贞,江富,马龙,等.PRB强化垂直流人工湿地系统处理煤矿废水试验研究[J].环境工程学报,2013,7(6):2033-2037.Di Junzhen,Jiang Fu,Ma Long,et al.Treatment of coal mine wastewater with vertical flow constructed wetland system strengthened by PRB[J].Chinese Journal of Environment Engineering,2013,7(6):2033-2037(in Chinese).
[10]付丰连.零价铁处理污水的最新研究进展[J].工业水处理,2010,30(6):1-4.Fu Fenglian.Newest research progress in the application of zero-valent iron to the treatment of wastewater[J].Industrial Water Treatment,2010,30(6):1-4(in Chinese).
[11]冯爱云,刘菲,陈鸿汉,等.硫酸根对颗粒铁除铬影响研究[J].河南师范大学学报:自然科学版,2009,37(3):73-76.Feng Aiyun,Liu Fei,Chen Honghan,et al.Effect of sulfate ion on hexavalent chromium removal by granular iron[J].Journal of Henan Normal University:Natural Science,2009,37(3):73-76(in Chinese).
[12]李亚新,苏冰琴.利用硫酸盐还原菌处理酸性矿山废水研究[J].中国给水排水,2000,16(2):13-17.Li Yaxin,Su Bingqin.Study on treatment of acid mine wastewater by sulfate-reducing bacteria[J].China Water&Wastewater,2000,16(2):13-17(in Chinese).
[2]蔡蕊,宋黎明,庞长泷,等.利用农业废弃物处理水体重金属污染的研究进展[J].中国给水排水,2014,30(24):61-65.Cai Rui,Song Liming,Pang Changlong,et al.Advances in research on agricultural waste material for treatment of heavy metal ions in water[J].China Water&Wastewater,2014,30(24):61-65(in Chinese).
[3]张庆芳,杨国栋,孔秀琴,等.改性花生壳吸附水中Cr6+的研究[J].化学与生物工程,2008,25(2):29-31.Zhang Qingfang,Yang Guodong,Kong Xiuqin,et al.Study on adsorption of Cr6+in water by modified peanut shell[J].Chemistry&Bioengineering,2008,25(2):29-31(in Chinese).
[4]Kieu H T Q,Müller E,Horn H.Heavy metal removal in anaerobic semi-continuous stirred tank reactors by a consortium of sulfate-reducing bacteria[J].Water Res,2011,45(13):3863-3870.
[5]张庆芳,辛佳,孔秀琴,等.改性花生壳处理废水中Cr6+的实验研究[J].花生学报,2008,37(3):16-19.Zhang Qingfang,Xin Jia,Kong Xiuqin,et al.Study on the adsorption of heavy metal with modified peanut shell from waste water[J].Journal of Peanut Science,2008,37(3):16-19.
[6]周隽,翟建平,吕慧峰,等.木屑和花生壳吸附去除水溶液中Cr3+的试验研究[J].环境污染治理技术与设备,2006,7(1):122-125.Zhou Jun,Zhai Jianping,Lv Huifeng,et al.Study on removing Cr3+from aqueous solution by sawdust and peanut husks[J].Techniques and Equipment for Environmental Pollution Control,2006,7(1):122-125(in Chinese).
[7]Al A S,Duvnjak Z.Sorption of cadmium and other heavy metals by pine bark[J].J Hazard Mater,1997,56(1/2):35-51.
[8]邓景衡,余侃萍,肖国光,等.吸附法处理重金属废水研究进展[J].工业水处理,2014,34(11):4-7.Deng Jingheng,Yu Kanping,Xiao Guoguang,et al.Research progress in the treatment of heavy metal wastewater by adsorption[J].Industrial Water Treatment,2014,34(11):4-7(in Chinese).
[9]狄军贞,江富,马龙,等.PRB强化垂直流人工湿地系统处理煤矿废水试验研究[J].环境工程学报,2013,7(6):2033-2037.Di Junzhen,Jiang Fu,Ma Long,et al.Treatment of coal mine wastewater with vertical flow constructed wetland system strengthened by PRB[J].Chinese Journal of Environment Engineering,2013,7(6):2033-2037(in Chinese).
[10]付丰连.零价铁处理污水的最新研究进展[J].工业水处理,2010,30(6):1-4.Fu Fenglian.Newest research progress in the application of zero-valent iron to the treatment of wastewater[J].Industrial Water Treatment,2010,30(6):1-4(in Chinese).
[11]冯爱云,刘菲,陈鸿汉,等.硫酸根对颗粒铁除铬影响研究[J].河南师范大学学报:自然科学版,2009,37(3):73-76.Feng Aiyun,Liu Fei,Chen Honghan,et al.Effect of sulfate ion on hexavalent chromium removal by granular iron[J].Journal of Henan Normal University:Natural Science,2009,37(3):73-76(in Chinese).
[12]李亚新,苏冰琴.利用硫酸盐还原菌处理酸性矿山废水研究[J].中国给水排水,2000,16(2):13-17.Li Yaxin,Su Bingqin.Study on treatment of acid mine wastewater by sulfate-reducing bacteria[J].China Water&Wastewater,2000,16(2):13-17(in Chinese).