Fenton污泥制备聚合硫酸铁的中试试验研究
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摘要
以广州造纸集团有限公司经Fenton法处理废水后的污泥为原料,采用酸浸还原回收Fenton污泥中的Fe,进一步制备高效絮凝剂聚合硫酸铁(PFS)。研究表明,Fenton污泥自然沉降至固含量8%～9%时,先用硫酸中和反应2 h,再加铁屑还原反应2 h,可制备质量分数为25. 0%～26. 7%的硫酸亚铁(FeSO_4)溶液;该溶液经氯酸钠氧化,成功制备出盐基度为10. 8%的聚合硫酸铁(PFS)。并初步评价了所制备的PFS对广州造纸集团有限公司废水处理系统厌氧出水的絮凝效果。结果表明,当PFS用量为5 mL/L时,出水COD_(Cr)可降至260 mg/L,COD_(Cr)去除率达71. 0%。
The iron of Fenton sludge from Guangzhou Paper mill wastewater treatment system was recovered by using acid leaching,and high efficient flocculant polymeric ferric sulfate( PFS) was further prepared in pilot scale test. The optimized conditions were found to be 2 h for first reaction with sulfuric acid neutralization and followed by 2 h iron reduction reaction,the solid concentrations of 25. 0% to 26. 7% ferrous sulfate solution was prepared. For subsequent preparation of polymeric ferric sulfate( PFS) preparation,the ferrous sulfate solution was catalytic oxidized by sodium chlorate,the basicity of resulting PFS was 10. 8%. The flocculation effect of the prepared PFS on the anaerobic effluent of Guangzhou Paper mill was preliminarily evaluated. The research showed that the effluent COD_(Cr) could be reduced to260 mg/L,the corresponding COD_(Cr) removal rate reached 71. 0% when the addition amount of the prepared aqueous solution of PFS was5 mL/L.
The iron of Fenton sludge from Guangzhou Paper mill wastewater treatment system was recovered by using acid leaching,and high efficient flocculant polymeric ferric sulfate( PFS) was further prepared in pilot scale test. The optimized conditions were found to be 2 h for first reaction with sulfuric acid neutralization and followed by 2 h iron reduction reaction,the solid concentrations of 25. 0% to 26. 7% ferrous sulfate solution was prepared. For subsequent preparation of polymeric ferric sulfate( PFS) preparation,the ferrous sulfate solution was catalytic oxidized by sodium chlorate,the basicity of resulting PFS was 10. 8%. The flocculation effect of the prepared PFS on the anaerobic effluent of Guangzhou Paper mill was preliminarily evaluated. The research showed that the effluent COD_(Cr) could be reduced to260 mg/L,the corresponding COD_(Cr) removal rate reached 71. 0% when the addition amount of the prepared aqueous solution of PFS was5 mL/L.
引文
[1]Paper industry waste water discharge and chemical oxygen demand emissions have the largest decline but still rank first in various industrial sectors[J].Paper and Paper Making,2015(1):82造纸行业废水排放量和化学需氧量排放量降幅最大但仍居各工业行业之首[J].纸和造纸,2015(1):82.
[2]Li Jun,Wang Lei,Peng Feng.Experimental Study on Fenton Oxidation/Coagulation Process in Subsequent Treatment of Landfill Leachate[J].China Water&Wastewater,2008,24(3):64.李军,王磊,彭锋.Fenton氧化/混凝法后续处理垃圾渗滤液研究[J].中国给水排水,2008,24(3):64.
[3]Xie Cheng,Yan Bo,Wei Chaohai.Removal of major organic pollutants in coking wastewater by Fenton oxidation pre-treatment[J].Acta Scientiae Circumstantiae,2007,27(7):1101.谢成,晏波,韦朝海.焦化废水Fenton氧化预处理过程中主要有机污染物的去除[J].环境科学学报,2007,27(7):1101.
[4]Zhang Yanxia,Zhang Weiling,Chen Tai.Study on Characteristics and Treatment Technology of Papermaking Wastewater[J].China Science and Technology Review,2013(37):43.张艳霞,张伟令,陈苔.造纸废水特性及处理技术研究[J].中国科技博览,2013(37):43.
[5]Wan Jinquan.Advanced treatment technology and practice of contemporary pulp and paper wastewate[J].China Pulp&Paper Industry,2011(3):18.万金泉.当代制浆造纸废水深度处理技术与实践[J].中华纸业,2011(3):18.
[6]Wang Ruyi,Fang Weizhong.Review on development of advanced treatment technology of papermaking wastewater[J].Hu’nan Pulp&Paper,2010(2):25.王如一,方伟忠.制浆造纸废水深度处理技术的发展[J].湖南造纸,2010(2):25.
[7]Hua Wen.Fenton wastewater treatment sludge disposal and recovery of iron salts using technology[D].Guangzhou:South China University of Technology,2017.华文.废水Fenton处理污泥的处置与铁盐回收利用技术研究[D].广州:华南理工大学,2017.
[8]Gu Shi-guo,Lian Fei,Zhang Yi-kang,et al.The Changes of Residual Iron and p H Value in Papermaking Waste Water Treated with Magnetized PFS[J].Transactions of China Pulp and Paper,2018,33(4):7.顾时国,廉菲,张义康,等.潘梅.磁化聚合硫酸铁混凝处理造纸废水的余铁和pH值变化研究[J].中国造纸学报,2018,33(4):7.
[9]Balcio?lu I A C F.Treatability of kraft pulp bleaching wastewater by biochemical and photocatalytic oxidation[J].Water science and technology,1999,40(1):281.
[10]Wei Fusheng,Bi Tong,Qi Wenqi.Water and wastewater detection and analysis methods[M].4thedition.Beijing:China Environmental Science Press,2002.魏复盛,毕彤,齐文启.水与废水检测分析方法[M].4版.北京:中国环境科学出版社,2002.
[11]Robert M Silverstein,Francis X Webster,David J Kiemle.Spectrometric Identification of Organic compounds[M].7th Edition.John Wiley&Sons,Inc.,2007.
[12]Weng Shifu.Fourier transform infrared spectroscopy analysis[M].Beijing:Chemical Industry Press,2010.翁诗甫.傅里叶变换红外光谱分析[M].北京:化学工业出版社,2010.
[13]Fu Ying,Yu Shuili,Han Chunwei.Morphology and coagulation performance during preparation of poly-silicic-ferric(PSF)coagulant[J].Chemical Engineering Journal,2009,149(1):1.
[14]L B.The infra-red spectra of complex molecules[M].Springer Science&Business Media,2013.
[15]Fu Ying,Yu Shui-li.Characterization and phosphorus removal of poly-silicic-ferric coagulant[J].Desalination,2009,247:442.
[16]Li Feng-ting.Discussion on the Application Status and Problems of Coagulants in China[J].Water Purification Technology,2018,37(7):1.李风亭.我国混凝剂应用现状及问题探讨[J].净水技术,2018,37(7):1.
[17]Yang Dong-kui,Huang Wen-bo,Zhu Shun-guang,et al.The Preparation of Polymerization of Ferric Sulfate and the Process Study of the Reduction of Secondary waste residue[J].Environmental technology,2018,31(1):30.杨东奎,黄文博,朱顺广,等.聚合硫酸铁的制备及二次废渣减量化处理的工艺研究[J].环境科技,2018,31(1):30.
[2]Li Jun,Wang Lei,Peng Feng.Experimental Study on Fenton Oxidation/Coagulation Process in Subsequent Treatment of Landfill Leachate[J].China Water&Wastewater,2008,24(3):64.李军,王磊,彭锋.Fenton氧化/混凝法后续处理垃圾渗滤液研究[J].中国给水排水,2008,24(3):64.
[3]Xie Cheng,Yan Bo,Wei Chaohai.Removal of major organic pollutants in coking wastewater by Fenton oxidation pre-treatment[J].Acta Scientiae Circumstantiae,2007,27(7):1101.谢成,晏波,韦朝海.焦化废水Fenton氧化预处理过程中主要有机污染物的去除[J].环境科学学报,2007,27(7):1101.
[4]Zhang Yanxia,Zhang Weiling,Chen Tai.Study on Characteristics and Treatment Technology of Papermaking Wastewater[J].China Science and Technology Review,2013(37):43.张艳霞,张伟令,陈苔.造纸废水特性及处理技术研究[J].中国科技博览,2013(37):43.
[5]Wan Jinquan.Advanced treatment technology and practice of contemporary pulp and paper wastewate[J].China Pulp&Paper Industry,2011(3):18.万金泉.当代制浆造纸废水深度处理技术与实践[J].中华纸业,2011(3):18.
[6]Wang Ruyi,Fang Weizhong.Review on development of advanced treatment technology of papermaking wastewater[J].Hu’nan Pulp&Paper,2010(2):25.王如一,方伟忠.制浆造纸废水深度处理技术的发展[J].湖南造纸,2010(2):25.
[7]Hua Wen.Fenton wastewater treatment sludge disposal and recovery of iron salts using technology[D].Guangzhou:South China University of Technology,2017.华文.废水Fenton处理污泥的处置与铁盐回收利用技术研究[D].广州:华南理工大学,2017.
[8]Gu Shi-guo,Lian Fei,Zhang Yi-kang,et al.The Changes of Residual Iron and p H Value in Papermaking Waste Water Treated with Magnetized PFS[J].Transactions of China Pulp and Paper,2018,33(4):7.顾时国,廉菲,张义康,等.潘梅.磁化聚合硫酸铁混凝处理造纸废水的余铁和pH值变化研究[J].中国造纸学报,2018,33(4):7.
[9]Balcio?lu I A C F.Treatability of kraft pulp bleaching wastewater by biochemical and photocatalytic oxidation[J].Water science and technology,1999,40(1):281.
[10]Wei Fusheng,Bi Tong,Qi Wenqi.Water and wastewater detection and analysis methods[M].4thedition.Beijing:China Environmental Science Press,2002.魏复盛,毕彤,齐文启.水与废水检测分析方法[M].4版.北京:中国环境科学出版社,2002.
[11]Robert M Silverstein,Francis X Webster,David J Kiemle.Spectrometric Identification of Organic compounds[M].7th Edition.John Wiley&Sons,Inc.,2007.
[12]Weng Shifu.Fourier transform infrared spectroscopy analysis[M].Beijing:Chemical Industry Press,2010.翁诗甫.傅里叶变换红外光谱分析[M].北京:化学工业出版社,2010.
[13]Fu Ying,Yu Shuili,Han Chunwei.Morphology and coagulation performance during preparation of poly-silicic-ferric(PSF)coagulant[J].Chemical Engineering Journal,2009,149(1):1.
[14]L B.The infra-red spectra of complex molecules[M].Springer Science&Business Media,2013.
[15]Fu Ying,Yu Shui-li.Characterization and phosphorus removal of poly-silicic-ferric coagulant[J].Desalination,2009,247:442.
[16]Li Feng-ting.Discussion on the Application Status and Problems of Coagulants in China[J].Water Purification Technology,2018,37(7):1.李风亭.我国混凝剂应用现状及问题探讨[J].净水技术,2018,37(7):1.
[17]Yang Dong-kui,Huang Wen-bo,Zhu Shun-guang,et al.The Preparation of Polymerization of Ferric Sulfate and the Process Study of the Reduction of Secondary waste residue[J].Environmental technology,2018,31(1):30.杨东奎,黄文博,朱顺广,等.聚合硫酸铁的制备及二次废渣减量化处理的工艺研究[J].环境科技,2018,31(1):30.