钢渣负载羟基磷灰石复合材料对水溶液中铀的去除性能
|
摘要
采用溶胶—凝胶法制备出钢渣负载羟基磷灰石复合材料,并通过静态试验方法探讨pH、复合材料投加量、反应时间及铀初始浓度对复合材料吸附水溶液中U(Ⅵ)的影响。结果表明,复合材料对U(Ⅵ)具有较好的去除性能,在pH=4、投加量0.4g、反应时间120min的条件下,对初始浓度5mg/L的水溶液中U(Ⅵ)的去除接近完全,对应吸附量为1.25mg/g。复合材料对U(Ⅵ)的吸附过程为化学吸附,符合准二级动力学模型(R~2=0.996 9);Langmuir吸附等温线模型拟合(R~2=0.999 1)表明,吸附过程为吸附剂表面上的单层吸附;且通过R_L(R_L <0.063)的计算表明,复合材料对U(Ⅵ)的吸附极其接近不可逆吸附。
Composite material of steel slag loaded with hydroxyapatite was prepared by sol-gel method with steel slag as carrier.Effects of pH value,adsorbent dosage,reaction time and initial uranium concentration on adsorption of U(Ⅵ)in aqueous solution were investigated by static test.The results show that this material has better removal property of U(Ⅵ).The results show that removal rate of U(Ⅵ)in aqueous solution with initial concentration of 5 mg/L is nearly 100% with adsorption capacity of 1.25 mg/g under the conditions of pH=4,dosage of 0.4 g and reaction time of 120 min.Adsorption process of U(Ⅵ)on composite is chemical adsorption which is more in line with quasi-second-order kinetic model(R~2=0.996 9).Langmuir adsorption isotherm model(R~2=0.999 1)shows that adsorption process is monolayer adsorption on surface of adsorbent,and the R_L(R_L<0.063)calculation shows that adsorption of U(Ⅵ)on composite is very close to irreversible adsorption.
Composite material of steel slag loaded with hydroxyapatite was prepared by sol-gel method with steel slag as carrier.Effects of pH value,adsorbent dosage,reaction time and initial uranium concentration on adsorption of U(Ⅵ)in aqueous solution were investigated by static test.The results show that this material has better removal property of U(Ⅵ).The results show that removal rate of U(Ⅵ)in aqueous solution with initial concentration of 5 mg/L is nearly 100% with adsorption capacity of 1.25 mg/g under the conditions of pH=4,dosage of 0.4 g and reaction time of 120 min.Adsorption process of U(Ⅵ)on composite is chemical adsorption which is more in line with quasi-second-order kinetic model(R~2=0.996 9).Langmuir adsorption isotherm model(R~2=0.999 1)shows that adsorption process is monolayer adsorption on surface of adsorbent,and the R_L(R_L<0.063)calculation shows that adsorption of U(Ⅵ)on composite is very close to irreversible adsorption.
引文
[1]JHA V N,TRIPATHI R M,SETHY N K,et al.Uptake of uranium by aquatic plants growing in fresh water ecosystem around uranium mill tailings pond at Jaduguda,India[J].Sci Total Environ,2016,539:175-184.
[2]BERNHARD G,BRENDLER V,NITSCHE H,et al.Uranium speciation in waters of different uranium mining areas[J].J Alloy Compd,1998,271:201-205.
[3]GIOVANNA ARMIENTO,MASSIMO ANGELONE,MAURIZIO DE CASSAN,et al.Uranium natural levels in water and soils:assessment of the Italian situation in relation to quality standards for drinking water[J].Rend.Fis.Acc.Lincei,2016,27:39-50.
[4]SATHESH KUMAR ANNAMALAI,KANTHA DEIVIARUNACHALAM,RAJARAM SELVARAJ.Natural radionuclide dose and lifetime cancer risk due to ingestion of fish and water from fresh water reservoirs near the proposed uranium mining site[J].Environ Sci Pollut Res,2017,24:15427-15443.
[5]胡南,丁德馨,李广悦,等.五种水生植物对水中铀的去除作用[J].环境科学学报,2012,32(7):1637-1645.
[6]CHEN L F,CHEN Y L,WANG X P,et al.A novel silica-based anion exchange resin used for removing uranium from drinking water[J].J Radioanal Nucl Chem,2017,314:2569-2578.
[7]吴鹏,王云,胡学文,等.四氧化三铁/氧化石墨烯纳米带复合材料对铀的吸附性能[J].原子能科学技术,2018,52(9):1561-1568.
[8]张学礼,徐乐昌,魏广芝,等.用PRBs技术修复铀污染地下水的研究现状[J].铀矿冶,2008,26(2):64-71.
[9]廖梓龙,魏永富,郭中小,等.可渗透反应栅(墙)技术综述[J].水资源保护,2012,28(6):70-76.
[10]ZHANG W M,GUO Y D,PAN Z P,et al.Remediation of a uranium-contaminated groundwater using the permeable reactive barrier technique coupled with hydroxyapatite-coated quartz sands[J].Fresenius Environmental Bulletin,2018,27:2703-2716.
[11]杨丽韫,陈军,袁鹏,等.钢渣去除废水中重金属离子的研究综述[J].钢铁,2017,52(8):1-9.
[12]齐文,高柏,陈井影,等.某铀尾矿库周边水环境中铀的分布特征及评价[J].有色金属(冶炼部分),2016(5):53-56.
[13]李春光,谭凯旋.地浸采铀地下水中放射性污染物迁移的模拟[J].南华大学学报(自然科学版),2011,25(3):25-31.
[14]刘晴晴,李小燕,泰启凤,等.纳米铁镍双金属去除溶液中U(Ⅵ)的性能研究[J].有色金属(冶炼部分),2018(7):74-78.
[15]ZHAO D L,YANG S B,CHEN S H,et al.Effect of pH,ionic strength and humic substances on the adsorption of Uranium(VI)onto Na-rectorite[J].J Radioanal Nucl Chem,2011,287:557-565.
[16]杨开源.MgO、ZnO多级结构的制备及铀吸附性能研究[D].哈尔滨:哈尔滨工程大学,2017.
[17]GOGOI D,SHANMUGAMANI A G,RAO S V S,et al.Study of removal process of manganese using synthetic calcium hydroxyapatite from an aqueous solution[J].Desalin.Water Treat,2016,57:6566-6573.
[2]BERNHARD G,BRENDLER V,NITSCHE H,et al.Uranium speciation in waters of different uranium mining areas[J].J Alloy Compd,1998,271:201-205.
[3]GIOVANNA ARMIENTO,MASSIMO ANGELONE,MAURIZIO DE CASSAN,et al.Uranium natural levels in water and soils:assessment of the Italian situation in relation to quality standards for drinking water[J].Rend.Fis.Acc.Lincei,2016,27:39-50.
[4]SATHESH KUMAR ANNAMALAI,KANTHA DEIVIARUNACHALAM,RAJARAM SELVARAJ.Natural radionuclide dose and lifetime cancer risk due to ingestion of fish and water from fresh water reservoirs near the proposed uranium mining site[J].Environ Sci Pollut Res,2017,24:15427-15443.
[5]胡南,丁德馨,李广悦,等.五种水生植物对水中铀的去除作用[J].环境科学学报,2012,32(7):1637-1645.
[6]CHEN L F,CHEN Y L,WANG X P,et al.A novel silica-based anion exchange resin used for removing uranium from drinking water[J].J Radioanal Nucl Chem,2017,314:2569-2578.
[7]吴鹏,王云,胡学文,等.四氧化三铁/氧化石墨烯纳米带复合材料对铀的吸附性能[J].原子能科学技术,2018,52(9):1561-1568.
[8]张学礼,徐乐昌,魏广芝,等.用PRBs技术修复铀污染地下水的研究现状[J].铀矿冶,2008,26(2):64-71.
[9]廖梓龙,魏永富,郭中小,等.可渗透反应栅(墙)技术综述[J].水资源保护,2012,28(6):70-76.
[10]ZHANG W M,GUO Y D,PAN Z P,et al.Remediation of a uranium-contaminated groundwater using the permeable reactive barrier technique coupled with hydroxyapatite-coated quartz sands[J].Fresenius Environmental Bulletin,2018,27:2703-2716.
[11]杨丽韫,陈军,袁鹏,等.钢渣去除废水中重金属离子的研究综述[J].钢铁,2017,52(8):1-9.
[12]齐文,高柏,陈井影,等.某铀尾矿库周边水环境中铀的分布特征及评价[J].有色金属(冶炼部分),2016(5):53-56.
[13]李春光,谭凯旋.地浸采铀地下水中放射性污染物迁移的模拟[J].南华大学学报(自然科学版),2011,25(3):25-31.
[14]刘晴晴,李小燕,泰启凤,等.纳米铁镍双金属去除溶液中U(Ⅵ)的性能研究[J].有色金属(冶炼部分),2018(7):74-78.
[15]ZHAO D L,YANG S B,CHEN S H,et al.Effect of pH,ionic strength and humic substances on the adsorption of Uranium(VI)onto Na-rectorite[J].J Radioanal Nucl Chem,2011,287:557-565.
[16]杨开源.MgO、ZnO多级结构的制备及铀吸附性能研究[D].哈尔滨:哈尔滨工程大学,2017.
[17]GOGOI D,SHANMUGAMANI A G,RAO S V S,et al.Study of removal process of manganese using synthetic calcium hydroxyapatite from an aqueous solution[J].Desalin.Water Treat,2016,57:6566-6573.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |