低温结晶法对染料中间体磺化工艺母液的资源化利用
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摘要
用低温结晶法处理4种染料中间体磺化工艺母液,研究温度、pH、碱种类等对处理效果的影响。实验表明,模拟废水的化学需氧量(COD)去除率均随着温度的降低而升高;添加氢氧化钾调节pH对2-萘酚-6,8-二磺酸二钾盐(G盐)模拟废水处理效果较好;在酸性条件下,β-萘磺酸钠盐(β盐)模拟废水处理效果随着pH的升高而下降。在对实际废水处理中,G盐废母液经过-12℃冷冻12h,COD去除率为55%,其结晶固体主要成分为2-萘酚-3,6-二磺酸二钠盐(R盐);用氢氧化钾调节过滤液pH至7.0,在-16℃冷冻12h,COD去除率进一步达62%,其结晶固体主要成分为G盐;β盐母液COD去除率可达78.8%,可回收部分β盐。结果表明,通过低温结晶法对G盐母液和β盐母液中有机成分进行资源化回收是有效可行的。
Four dye intermediate mother liquors from sulfonation processes were treated by lowtemperature crystallization,and the influences of temperature,pH and the kind of alkali were investigated.The results showed that the removal of chemical oxygen demands(COD)of simulated wastewater increased with decreasing temperature. Adjusting pH of simulated 2-naphthalene-6,8-disulfonic acid dipotassium salt(G salt)wastewater by adding KOH improved the performance of treatment,while the effect of treatment for simulated 2-naphthalenesulfonic acid sodium salt(βsalt)wastewater decreased with increasing pH under acidic condition.The real G salt mother liquor was frozen for 12hat-12 ℃,and reached the removal of COD of 55% with the main production of 2-naphthol-3,6-disulfonic acid disodium salt(R salt).Then the pH of G salt filtering medium was adjusted to 7.0,and frozen 12hat-16 ℃,the removal of COD increased to 62% while the main component of crystal production was G salt.The removal of COD ofβsalt mother liquor reached 78.8%,andβsalt was partly recovered.The recovery of organic components in G salt andβsalt mother liquors by low-temperature crystallization was feasible.
Four dye intermediate mother liquors from sulfonation processes were treated by lowtemperature crystallization,and the influences of temperature,pH and the kind of alkali were investigated.The results showed that the removal of chemical oxygen demands(COD)of simulated wastewater increased with decreasing temperature. Adjusting pH of simulated 2-naphthalene-6,8-disulfonic acid dipotassium salt(G salt)wastewater by adding KOH improved the performance of treatment,while the effect of treatment for simulated 2-naphthalenesulfonic acid sodium salt(βsalt)wastewater decreased with increasing pH under acidic condition.The real G salt mother liquor was frozen for 12hat-12 ℃,and reached the removal of COD of 55% with the main production of 2-naphthol-3,6-disulfonic acid disodium salt(R salt).Then the pH of G salt filtering medium was adjusted to 7.0,and frozen 12hat-16 ℃,the removal of COD increased to 62% while the main component of crystal production was G salt.The removal of COD ofβsalt mother liquor reached 78.8%,andβsalt was partly recovered.The recovery of organic components in G salt andβsalt mother liquors by low-temperature crystallization was feasible.
引文
[1]马万征,李忠芳,王艳,等.印染废水处理技术的现状及其发展趋势[J].应用化工,2013,41(12):2154-2155.
[2]范迪,王琳,王娟.新型复合混凝脱色剂处理印染废水试验研究[J].环境科学,2007,28(6):1285-1289.
[3]丁海燕,王玉萍,孙春霞,等.萘系化合物的高级氧化方法[J].工业用水与废水,2004,35(4):5-8.
[4]潘全,王惠,杨玉娇,等.铁碳微电解处理印染废水的研究[J].湖北大学学报(自然科学版),2011,33(2):165-167.
[5]袁俊秀,王玉萍,刘勇,等.铁碳微电解法处理1-萘酚-8-磺酸模拟废水的研究[J].南京师范大学学报(工程技术版),2005,5(2):74-77.
[6]彭书传,魏凤玉,崔康平.H2O2-Fe2+法处理β-萘磺酸钠生产废水的研究[J].工业水处理,1998,18(1):23-25.
[7]胡俊生,任雪冬,郝苓汀,等.臭氧高级氧化技术处理印染废水[J].沈阳建筑大学学报(自然科学版),2009,25(4):747-752.
[8]宾月景,祝万鹏,蒋展鹏,等.H-酸的催化湿式氧化反应过程研究[J].环境污染与防治,2000,22(3):4-7.
[9]彭盘英,王玉萍,崔世海,等.γ酸废水的综合利用[J].化工环保,2000,20(6):30-34.
[10]鲁军,周洪德,魏兴义,等.用络合萃取法对磺酸型有机废水进行预处理的研究[J].化工环保,1995,15(2):67-72.
[11]邓传芸,魏凤玉,崔鹏,等.液膜分离β-萘磺酸钠工业废水的研究[J].合肥工业大学学报(自然科学版),1996,12:91-98.
[12]秦非,张志军,蒋挺大,等.混合型表面活性剂液膜法处理含酚废水研究[J].膜科学与技术,1997,17(1):29-32.
[13]杨少斌,杜国银,金文.冷冻法及其在废水处理中的应用[J].中国科技成果,2008(24):50-51.
[14]曹向禹.ClO2氧化法预处理联苯胺类染料中间体废水[J].化工环保,2013(1):39-42.
[15]龚雪君,陈晓蓉,梅华.Ni203/AC催化剂催化氧化蒽醌染料中间体废水研究[J].环境科学与技术,2013(12):117-121
[16]张英,任国栋,唐秀华,等.铁催化内电解法预处理染料中间体废水的研究[J].中国给水排水,2010(23):86-87.
[17]FERNNDEZ-TORRES M J,RUIZ-BEVIF,RODRGUEZPASCUAL M,et al.Teaching a new technology,eutectic freeze crystallization,by means of a solved problem[J].Education for Chemical Engineers,2012,7(4):163-168.
[18]TANG Zhigang,ZHOU Rongqi,DUAN Zhanting.Separation of gibberellic acid(GA3)by macroporous adsorption resins[J].Journal of Chemical Technology and Biotechnology,2000,75(8):695-700.
[19]LEWIS A E,NATHOO J,THOMSEN K,et al.Design of a eutectic freeze crystallization process for multicomponent waste water stream[J].Chemical Engineering Research and Design,2010,88(9):1290-1296.
[20]VAN DER HAM F,WITKAMP G J,DE GRAAUW J,et al.Eutectic freeze crystallization:Application to process streams and waste water purification[J].Chemical Engineering and Processing:Process Intensification,1998,37(2):207-213.
[21]VAESSEN R J C,JANSE B J H,SECKLER M M,et al.Evaluation of the performance of a newly developed eutectic freeze crystallizer:scraped cooled wall crystallizer[J].Chemical Engineering Research and Design,2003,81(10):1363-1372.
[22]张泉,于建梅,季敦林.G盐废液的综合利用[J].江苏化工,1995(5):38-40.
[23]彭书伟,魏凤玉.β-萘磺酸钠生产废水的处理[J].中国环境科学,1998,18(5):455-457.
[24]文玲,张旭,周翔.冷冻浓缩污水处理的能耗分析[J].化工学报,2012(S2):199-203.
[2]范迪,王琳,王娟.新型复合混凝脱色剂处理印染废水试验研究[J].环境科学,2007,28(6):1285-1289.
[3]丁海燕,王玉萍,孙春霞,等.萘系化合物的高级氧化方法[J].工业用水与废水,2004,35(4):5-8.
[4]潘全,王惠,杨玉娇,等.铁碳微电解处理印染废水的研究[J].湖北大学学报(自然科学版),2011,33(2):165-167.
[5]袁俊秀,王玉萍,刘勇,等.铁碳微电解法处理1-萘酚-8-磺酸模拟废水的研究[J].南京师范大学学报(工程技术版),2005,5(2):74-77.
[6]彭书传,魏凤玉,崔康平.H2O2-Fe2+法处理β-萘磺酸钠生产废水的研究[J].工业水处理,1998,18(1):23-25.
[7]胡俊生,任雪冬,郝苓汀,等.臭氧高级氧化技术处理印染废水[J].沈阳建筑大学学报(自然科学版),2009,25(4):747-752.
[8]宾月景,祝万鹏,蒋展鹏,等.H-酸的催化湿式氧化反应过程研究[J].环境污染与防治,2000,22(3):4-7.
[9]彭盘英,王玉萍,崔世海,等.γ酸废水的综合利用[J].化工环保,2000,20(6):30-34.
[10]鲁军,周洪德,魏兴义,等.用络合萃取法对磺酸型有机废水进行预处理的研究[J].化工环保,1995,15(2):67-72.
[11]邓传芸,魏凤玉,崔鹏,等.液膜分离β-萘磺酸钠工业废水的研究[J].合肥工业大学学报(自然科学版),1996,12:91-98.
[12]秦非,张志军,蒋挺大,等.混合型表面活性剂液膜法处理含酚废水研究[J].膜科学与技术,1997,17(1):29-32.
[13]杨少斌,杜国银,金文.冷冻法及其在废水处理中的应用[J].中国科技成果,2008(24):50-51.
[14]曹向禹.ClO2氧化法预处理联苯胺类染料中间体废水[J].化工环保,2013(1):39-42.
[15]龚雪君,陈晓蓉,梅华.Ni203/AC催化剂催化氧化蒽醌染料中间体废水研究[J].环境科学与技术,2013(12):117-121
[16]张英,任国栋,唐秀华,等.铁催化内电解法预处理染料中间体废水的研究[J].中国给水排水,2010(23):86-87.
[17]FERNNDEZ-TORRES M J,RUIZ-BEVIF,RODRGUEZPASCUAL M,et al.Teaching a new technology,eutectic freeze crystallization,by means of a solved problem[J].Education for Chemical Engineers,2012,7(4):163-168.
[18]TANG Zhigang,ZHOU Rongqi,DUAN Zhanting.Separation of gibberellic acid(GA3)by macroporous adsorption resins[J].Journal of Chemical Technology and Biotechnology,2000,75(8):695-700.
[19]LEWIS A E,NATHOO J,THOMSEN K,et al.Design of a eutectic freeze crystallization process for multicomponent waste water stream[J].Chemical Engineering Research and Design,2010,88(9):1290-1296.
[20]VAN DER HAM F,WITKAMP G J,DE GRAAUW J,et al.Eutectic freeze crystallization:Application to process streams and waste water purification[J].Chemical Engineering and Processing:Process Intensification,1998,37(2):207-213.
[21]VAESSEN R J C,JANSE B J H,SECKLER M M,et al.Evaluation of the performance of a newly developed eutectic freeze crystallizer:scraped cooled wall crystallizer[J].Chemical Engineering Research and Design,2003,81(10):1363-1372.
[22]张泉,于建梅,季敦林.G盐废液的综合利用[J].江苏化工,1995(5):38-40.
[23]彭书伟,魏凤玉.β-萘磺酸钠生产废水的处理[J].中国环境科学,1998,18(5):455-457.
[24]文玲,张旭,周翔.冷冻浓缩污水处理的能耗分析[J].化工学报,2012(S2):199-203.