Abstract
Activated persulfates are efficient reagents for oxidation of organic contaminants and water treatment. Various compounds are currently used to activate persulfates, but there is a need for cheap and efficient activators. Here, we report the first use of steel slag, an industrial solid waste, as a solid activator for peroxydisulfate activation. We tested this system for bisphenol A degradation. Results indicate that about 70% of bisphenol A can be removed within 1 h. Conditions were 50 μg/L of bisphenol A, 2 g/L of peroxydisulfate, 3 g/L of steel slag and temperature of 298 K. The components and surface morphology of unused and recycled steel slag were analyzed by X-ray diffraction and scanning electron microscopy, whereas the main reactive oxygen species were elucidated by using radical scavengers. Findings show that both base oxides and iron oxides are responsible for peroxydisulfate activation. A redox mechanism involving liquid and solid phases is proposed. Overall, this study reveals the successful recycling of steel slag to activate persulfates for water treatment, following the principle of ‘waste control by waste.’
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Anipsitakis GP, Dionysiou DD (2003) Degradation of organic contaminants in water with sulfate radicals generated by the conjunction of peroxymonosulfate with cobalt. Environ Sci Technol 37:4790–4797. https://doi.org/10.1021/es0263792
Anipsitakis GP, Dionysiou DD (2004) Radical generation by the interaction of transition metals with common oxidants. Environ Sci Technol 38:3705–3712. https://doi.org/10.1021/es035121o
Ball DL, Edwards JO (1956) The kinetics and mechanism of the decomposition of Caro’s acid I. J Am Chem Soc 78:1125–1129. https://doi.org/10.1021/ja01587a011
Buxton GV, Greenstock CL, Helman WP, Ross AB (1988) Critical review of rate constants for reactions of hydrated electrons. J Phys Chem Ref Data 17:513–886. https://doi.org/10.1063/1.555805
Cai M, Hu JQ, Wells GF (2018) Understanding mechanisms of synergy between acidification and ultrasound treatments for activated sludge dewatering: from bench to pilot-scale investigation. Environ Sci Technol 52:4313–4323. https://doi.org/10.1021/acs.est.8b00310
Devi P, Das U, Dalai AK (2016) In-situ chemical oxidation: principle and applications of peroxide and persulfate treatments in wastewater systems. Sci Total Environ 571:643–657. https://doi.org/10.1016/j.scitotenv.2016.07.032
Duan JM, Su B (2014) Removal characteristics of Cd(II) from acidic aqueous solution by modified steel-making slag. Chem Eng J 246:160–167. https://doi.org/10.1016/j.cej.2014.02.056
Furman O, Laine DF, Blumenfeld A, Teel AL, Shimizu K, Cheng IF, Watts RJ (2009) Enhanced reactivity of superoxide in water-solid matrices. Environ Sci Technol 43:1528–1533
Furman OS, Teel AL, Watts RJ (2010) Mechanism of base activation of persulfate. Environ Sci Technol 44:6423–6428. https://doi.org/10.1021/es1013714
Goetz ER, Riefler RG (2014) Performance of steel slag leach by energy dispersive spectrum in acid mine drainage treatment. Chem Eng J 240:579–588. https://doi.org/10.1016/j.cej.2013.10.080
Gong G, Ye S, Tian Y, Wang Q, Ni J, Chen Y (2009) Preparation of a new sorbent with hydrated lime and blast furnace slag for phosphorus removal from aqueous solution. J Hazard Mater 166:714–719. https://doi.org/10.1016/j.jhazmat.2008.11.077
Guo Y, Zhou J, Lou X, Liu R, Xiao D, Fang C, Wang Z, Liu J (2014) Enhanced degradation of Tetrabromobisphenol A in water by a UV/base/persulfate system: kinetics and intermediates. Chem Eng J 254:538–544. https://doi.org/10.1016/j.cej.2014.05.143
Huang KC, Zhao ZQ, Hoag GE, Dahmani A, Block PA (2005) Degradation of volatile organic compounds with thermally activated persulfate oxidation. Chemosphere 61:551–560. https://doi.org/10.1016/j.chemosphere.2005.02.032
Liang C, Wang ZS, Bruell CJ (2007) Influence of pH on persulfate oxidation of TCE at ambient temperatures. Chemosphere 66:106–133. https://doi.org/10.1016/j.chemosphere.2006.05.026
Luo S, Wei Z, Spinney R et al (2017a) UV direct photolysis of sulfamethoxazole and ibuprofen: an experimental and modelling study. J Hazard Mater 343:132–139. https://doi.org/10.1016/j.jhazmat.2017.09.019
Luo S, Wei Z, Dionysiou DD et al (2017b) Mechanistic insight into reactivity of sulfate radical with aromatic contaminants through single-electron transfer pathway. Chem Eng J 327:1056–1065. https://doi.org/10.1016/j.cej.2017.06.179
Luo S, Gao L, Wei Z et al (2018) Kinetic and mechanistic aspects of hydroxyl radical-mediated degradation of naproxen and reaction intermediates. Water Res 137:233–241. https://doi.org/10.1016/j.watres.2018.03.002
Neta P, Huie RE, Ross AB (2009) Rate constants for reactions of inorganic radicals in aqueous-Solution. J Phys Chem Ref Data 17:1027–1284. https://doi.org/10.1063/1.555808
Norman ROC, Storey PM, West PR (1970) Electron spin resonance studies part XXV reactions of the sulphate radical anion with organic compounds. J Chem Soc. https://doi.org/10.1039/j29700001087
Qi C, Liu X, Ma J, Lin C, Li X, Zhang H (2016) Activation of peroxymonosulfate by base: implications for the degradation of organic pollutants. Chemosphere 151:280–288. https://doi.org/10.1016/j.chemosphere.2016.02.089
Rao PS, Hayon E (1975) Redox potentials of free radicals. IV. Superoxide and hydroperoxy radicals. O2 and HO2. J Phys Chem 79:397–402
Sharma J, Mishra IM, Dionysios DD, Kumar Vineet (2015) Oxidative removal of bisphenol A by UV-C/peroxymonosulfate (PMS): kinetics, influence of co-existing chemicals and degradation pathway. Chem Eng J 276:193–204. https://doi.org/10.1016/j.cej.2015.04.021
Tijani JO, Fatoba OO, Babajide OO, Petrik LF (2016) Pharmaceuticals, endocrine disruptors, personal care products, nanomaterials and perfluorinated pollutants: a review. Environ Chem Lett 14:27–49. https://doi.org/10.1007/s10311-015-0537-z
Xiao R, Wei Z, Chen D et al (2014) Kinetics and mechanism of sonochemical degradation of pharmaceuticals in municipal wastewater. Environ Sci Technol 48:9675–9683. https://doi.org/10.1021/es5016197
Xiao R, Gao L, Wei Z et al (2017) Mechanistic insight into degradation of endocrine disrupting chemical by hydroxyl radical: an experimental and theoretical approach. Environ Pollut 231:1446–1452. https://doi.org/10.1016/j.envpol.2017.09.006
Xiao R, Luo Z, Wei Z et al (2018) Activation of peroxymonosulfate/persulfate by nanomaterials for sulfate radical-based advanced oxidation technologies. Curr Opin Chem Eng 19:51–58. https://doi.org/10.1016/j.coche.2017.12.005
Yan J, Moreno L, Neretnieks I (2010) The long-term acid neutralizing capacity of steel slag. Waste Manag 20:217–223. https://doi.org/10.1016/S0956-053X(99)00318-9
Yang JM, Lu JW, Wu QS (2018) Influence of steel slag powders on the properties of MKPC paste. Constr Build Mater 159:137–146. https://doi.org/10.1016/j.conbuildmat.2017.10.081
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The authors are grateful to the support of National Natural Science Foundation (Project No. 51779211).
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Xu, X., Liu, D., Chen, W. et al. Waste control by waste: efficient removal of bisphenol A with steel slag, a novel activator of peroxydisulfate. Environ Chem Lett 16, 1435–1440 (2018). https://doi.org/10.1007/s10311-018-0748-1
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DOI: https://doi.org/10.1007/s10311-018-0748-1