铜离子强化芬顿处理糖精钠废水研究
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摘要
针对糖精钠生产废水有机物浓度高、盐含量大、可生化性差的特性,设计了分段废水处理工艺,选取酯化分离和置换工序所产生邻氨基苯甲酸废水,并依据Cu~(2+)与H_2O_2发生类Fenton反应原理,利用Cu~(2+)、Fe~(2+)离子的协同效应,结合铜离子沉淀法和芬顿氧化法,探讨了硫酸铜、硫酸亚铁、过氧化氢加入量等因素对废水中COD去除率的影响;采用单因素实验方法确定了最佳参数:50 mL糖精钠废水,加入1.15 g硫酸铜、0.1 g硫酸亚铁、21 mL 30%过氧化氢,COD去除率达到76%.该工艺与芬顿氧化法相比,硫酸铜的加入强化了Fe~(2+)离子的催化作用,提高了废水中COD去除率.
Aiming at the characteristics of high concentration of organic substance,large salt content and poor biodegradability in the production of saccharin sodium wastewater,the segmented wastewater treatment process was designed. Anthranilic acid wastewater generated by the esterification separation and replacement process was selected.According to the characteristics of Cu~(2+) and H_2O_2 Fenton reaction principle,the use of Cu~(2+) ,Fe~(2+) synergistic effect,combined with copper ion precipitation and Fenton oxidation,we discussed copper sulfate,ferrous sulfate,hydrogen peroxide and other factors on the COD removal efficiency of wastewater. We used the single factor test method to determine the optimum parameters which were as follows:50 mL sodium saccharin wastewater,1.15 g copper sulfate,0.1 g ferrous sulfate and 21 mL 30% hydrogen peroxide. The removal rate of COD was reached 76%. Compared with the Fenton oxidation method,the addition of copper sulfate strengthened the catalytic role of Fe~(2+) ions,we improved the COD removal rate of wastewater.
Aiming at the characteristics of high concentration of organic substance,large salt content and poor biodegradability in the production of saccharin sodium wastewater,the segmented wastewater treatment process was designed. Anthranilic acid wastewater generated by the esterification separation and replacement process was selected.According to the characteristics of Cu~(2+) and H_2O_2 Fenton reaction principle,the use of Cu~(2+) ,Fe~(2+) synergistic effect,combined with copper ion precipitation and Fenton oxidation,we discussed copper sulfate,ferrous sulfate,hydrogen peroxide and other factors on the COD removal efficiency of wastewater. We used the single factor test method to determine the optimum parameters which were as follows:50 mL sodium saccharin wastewater,1.15 g copper sulfate,0.1 g ferrous sulfate and 21 mL 30% hydrogen peroxide. The removal rate of COD was reached 76%. Compared with the Fenton oxidation method,the addition of copper sulfate strengthened the catalytic role of Fe~(2+) ions,we improved the COD removal rate of wastewater.
引文
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[24]栾庆祥,赵杨,周欣,等.单因素试验结合响应面分析法优化杜仲最佳提取工艺[J].药物分析杂志,2013(5):859-865.
[25]于立民,丁国勇.单因素试验中数据的统计学处理[J].电子测量技术,1992(3):30-33.
[2]WU F.Study on Pretreatment of wastewater containing saccharin sodium by coagulation[J].Shanghai Environmental Sciences,1997,4:48-51.
[3]NIDHEESH P V,GANDHIMATHI R.Trends in electro-Fenton process for water and wastewater treatment:an overview[J].Desalination,2012,299(4):1-15.
[4]常海荣,张振家,王欣泽.铁屑还原法预处理糖精钠废水[J].中国给水排水,2004,20(2):51-53.
[5]崔亚楠,姚美红,徐光荣,等.微波强化芬顿处理糖精废水工艺研究[J].河南科技,2014(14):17-18.
[6]NAKANISHI K,HIROSE M,OGISO T,et al.Effects of sodium saccharin and caffeine on the urinary bladder of rats treated withn-butyl-n-(4-hydroxybutyl)nitrosamine[J].Gan,1980,71(4):490-500.
[7]XIAO Y,XU J.Application of fenton'reagent in pretneating reractory dinitro chlorobenzene wastewater[J].ChongqingEnvironmental Science,1997,6:33-36.
[8]吴慧芳,梅凯,孔火良,等.Fenton氧化絮凝预处理糖精钠生产废水[J].工业安全与环保,2004,30(3):14-16.
[9]WU H.Removal of copper ion of saccharin sodium produced wastewater through ferrous oxygen method[J].Urban Environmentand Urban Ecology,1998,1:14-16.
[10]CHEN Z G,ZHANG R X,ZHANG B,et al.Treatment of sodium formate wastewater by fenton oxidation process[J].AdvancedMaterials Research,2012,573-574:627-630.
[11]JIE F,SONG Y,ZHANG P,et al.Treatment of simulated sodium fosfomycin pharmaceutical wastewater using Fenton-hydrolysisacidification-contact oxidation process[J].Chinese Journal of Environmental Engineering,2014,8(7):2741-2747.
[12]CHEN S W,LI W C,SUN Z G,et al.Degradation of artificial sweetener saccharin sodium by advanced oxidation technology[J].Journal of Shanghai Second Polytechnic University,2013,448-453:7-10.
[13]WU H.Fenton agent oxidation and coagulation pre-treatment of saccharin sodium waste water in the production[J].IndustrialSafety and Dust Control,2004,3:14-16.
[14]欧晓霞,张凤杰,王崇,等.芬顿氧化法处理水中酸性品红的研究[J].环境工程学报,2010(7):1453-1456.
[15]汪林,杜茂安,李欣.芬顿氧化法深度处理亚麻生产废水[J].工业用水与废水,2008,39(1):52-54.
[16]吴凤英,程少军.混凝法预处理糖精钠废水研究[J].上海环境科学,1997(4):33-35.
[17]吴慧芳,孔火良,王世和,等.聚氯化铝对糖精钠废水混凝效果的影响研究[J].青岛理工大学学报,2006,27(3):34-37.
[18]吴慧芳,王世和.糖精钠生产废水的铁氧体法除铜研究[J].城市环境与城市生态,1998(1):14-16.
[19]王世和,吴慧芳.糖精钠生产废水的综合处理技术[J].水处理技术,2002,28(4):235-238.
[20]金传玉.糖精钠6种测定方法的对比试验[J].中国食品卫生杂志,1989(1):28-29.
[21]GIDEZ L I,MILLER G J,BURSTEIN M,et al.Separation and quantitation of subclasses of human plasma high density lipoproteinsby a simple precipitation procedure[J].Journal of Lipid Research,1982,23(8):1206-1223.
[22]TSOI L C,BOEHNKE M,KLEIN R L,et al.Rapid method for isolation of lipoproteins from human serum by precipitation withpolyanions[J].Journal of Lipid Research,1970,11(6):583-595.
[23]邵玉秀.糖精钠生产中含铜废酸水制硫酸铜工艺技术的开发[J].化学工业,1996(4):17-19.
[24]栾庆祥,赵杨,周欣,等.单因素试验结合响应面分析法优化杜仲最佳提取工艺[J].药物分析杂志,2013(5):859-865.
[25]于立民,丁国勇.单因素试验中数据的统计学处理[J].电子测量技术,1992(3):30-33.