Abstract
The wastewater from gold exploitation is well known for the toxic nature of recalcitrant cyanide metallic complexes. In this work the selectivity in the photocatalytic degradation of gold mining wastewater (Fe(CN)6 3 −) using suspended TiO2 with alcoholic and organic acid scavengers in a mini-CPC photoreactor with a 30 W UV-A LED as an artificial source of light was evaluated. The study was done in four stages: 1. load catalyst determination, 2. combination of scavengers in a typical photocatalytic degradation, 3. evaluation of scavenger concentration and 4. kinetic study. The decomposition into CN− and Fe removal of the cyanocomplex were tracked. It was observed that formic acid (FA) and t-butanol (t-ButOH) were the best scavengers for the photocatalytic degradation under anoxic conditions. The best concentrations of acceptors used in the study were 10 mM FA and 10 mM t-ButOH at 20 W m−2 of UV-A power, reaching 80% degradation of Fe(CN)6 3−, 40% Fe removal and 18 ppm of free cyanide CN release to the liquid phase. The electrical efficiency of oxidation per order (E Eo) was increased by about 50% with the addition of scavengers instead of traditional anoxic photocatalytic treatment. It was proved that the photocatalytic decomposition of the Fe cyanocomplex was done through the photoreduction path of the metal complex.
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K. R. Malloch and D. Craw, Comparison of contrasting gold mine processing residues in a temperate rain forest, New Zealand, Appl. Geochem., 2017, 84, 61–75.
G. Chi, M. C. Fuerstenau and J. O. Marsden, Study of Merrill-Crowe processing. Part I: S, solubility of zinc in alkaline cyanide solution, Int. J. Miner. Process., 1997, 49, 171–183.
Universidad Industrial de Santander UIS, Estimación de áreas intervenidas, consumo de agua, energía eléctrica y costos de producción en la actividad minera, 2014.
Sistema de información minero Colombiano, Historico de producción de oro.
S. H. Kim, S. W. Lee, G. M. Lee, B.-T. Lee, S.-T. Yun and S.-O. Kim, Monitoring of TiO2-catalytic UV-LED photo-oxidation of cyanide contained in mine wastewater and leachate, Chemosphere, 2016, 143, 106–114.
I. Dobrosz-Gómez, B. D. Ramos García, E. GilPavas and M. Á. Gómez García, Kinetic study on HCN volatilization in gold leaching tailing ponds, Miner. Eng., 2017, 110, 185–194.
J. Vymazal, Constructed wetlands for treatment of industrial wastewaters: A review, Ecol. Eng., 2014, 73, 724–751.
N. Gupta, C. Balomajumder and V. K. K. Agarwal, Enzymatic mechanism and biochemistry for cyanide degradation: A review, J. Hazard. Mater., 2010, 176, 1–13.
V. M. Luque-Almagro, C. Moreno-Vivián and M. D. Roldán, Biodegradation of cyanide wastes from mining and jewellery industries, Curr. Opin. Biotechnol., 2016, 38, 9–13.
X. Dai, A. Simons and P. Breuer, A review of copper cyanide recovery technologies for the cyanidation of copper containing gold ores, Miner. Eng., 2012, 25, 1–13.
S. A. Al-Saydeh, M. H. El-Naas and S. J. Zaidi, Copper removal from industrial wastewater: A comprehensive review, J. Ind. Eng. Chem., 2017, 56, 35–44.
J. Byrne, P. Dunlop, J. Hamilton, P. Fernández-Ibáñez, I. Polo-López, P. Sharma and A. Vennard, A Review of Heterogeneous Photocatalysis for Water and Surface Disinfection, Molecules, 2015, 20, 5574–5615.
A. Fujishima, X. Zhang and D. A. Tryk, TiO2 photocatalysis and related surface phenomena, Surf. Sci. Rep., 2008, 63, 515–582.
D. Spasiano, R. Marotta, S. Malato, P. Fernandez-Ibáñez and I. Di Somma, Solar photocatalysis: Materials, reactors, some commercial, and pre-industrialized applications. A comprehensive approach, Appl. Catal., B, 2015, 170–171, 90–123.
O. Ola and M. Mercedes Maroto-Valer, Role of catalyst carriers in CO2 photoreduction over nanocrystalline nickel loaded TiO2-based photocatalysts, J. Catal., 2014, 309, 300–308.
X. Liu, L. Pan, T. Lv and Z. Sun, CdS sensitized TiO2 film for photocatalytic reduction of Cr(VI) by microwave-assisted chemical bath deposition method, J. Alloys Compd., 2014, 583, 390–395.
F. Mahlamvana and R. J. Kriek, Photocatalytic reduction of platinum(II and IV) from their chloro complexes in a titanium dioxide suspension in the absence of an organic sacrificial reducing agent, Appl. Catal., B, 2014, 148–149, 387–393.
K. Osathaphan, K. Ruengruehan, R. A. Yngard and V. K. Sharma, Photocatalytic Degradation of Ni(II)-Cyano and Co(III)-Cyano Complexes, Water, Air, Soil Pollut., 2013, 224, 1647.
L. D. C. Cid, M. D. C. Grande, E. O. Acosta and B. Ginzberg, Removal of Cr(VI) and humic acid by heterogeneous photocatalysis in a laboratory reactor and a pilot reactor, Ind. Eng. Chem. Res., 2012, 51, 9468–9474.
L. Li, F. Jiang, J. Liu, H. Wan, Y. Wan and S. Zheng, Enhanced photocatalytic reduction of aqueous Pb(II) over Ag loaded TiO2 with formic acid as hole scavenger, J. Environ. Sci. Health, Part A: Toxic/Hazard. Subst. Environ. Eng., 2012, 47, 327–336.
M. V. Dozzi, A. Saccomanni and E. Selli, Cr(VI) photo-catalytic reduction: Effects of simultaneous organics oxidation and of gold nanoparticles photodeposition on TiO2, J. Hazard. Mater., 2012, 211–212, 188–195.
N. Aman, T. Mishra, J. Hait and R. K. Jana, Simultaneous photoreductive removal of copper(II) and selenium(IV) under visible light over spherical binary oxide photo-catalyst, J. Hazard. Mater., 2011, 186, 360–366.
C. Karunakaran, V. Rajeswari and P. Gomathisankar, Antibacterial and photocatalytic activities of sonochemically prepared ZnO and Ag–ZnO, J. Alloys Compd., 2010, 508, 587–591.
C. Karunakaran, G. Abiramasundari, P. Gomathisankar, G. Manikandan and V. Anandi, Preparation and characterization of ZnO–TiO2 nanocomposite for photocatalytic disinfection of bacteria and detoxification of cyanide under visible light, Mater. Res. Bull., 2011, 46, 1586–1592.
R. M. Mohamed and E. S. Baeissa, Preparation and characterisation of Pd–TiO2–hydroxyapatite nanoparticles for the photocatalytic degradation of cyanide under visible light, Appl. Catal., A, 2013, 464–465, 218–224.
M. W. Kadi and R. M. Mohamed, Enhanced Photocatalytic Activity of ZrO2-SiO2 Nanoparticles by Platinum Doping, Int. J. Photoenergy, 2013, 2013, 1–7.
E. S. Baeissa, Photocatalytic removal of cyanide by cobalt metal doped on TiO2-SiO2 nanoparticles by photo-assisted deposition and impregnation methods, J. Ind. Eng. Chem., 2014, 20, 3761–3766.
A. Bozzi, I. Guasaquillo and J. Kiwi, Accelerated removal of cyanides from industrial effluents by supported TiO2 photo-catalysts, Appl. Catal., B, 2004, 51, 203–211.
M. BARAKAT, Removal of toxic cyanide and Cu(II) Ions from water by illuminated TiO2 catalyst, Appl. Catal., B, 2004, 53, 13–20.
R. Van Grieken, J. Aguado, R. Van Grieken, M.-J. J. López-Muñoz and J. Marugán, Photocatalytic gold recovery from spent cyanide plating bath solutions, Gold Bull., 2005, 38, 180–187.
R. van Grieken, J. Aguado, M.-J. López-Muñoz and J. Marugán, Photocatalytic degradation of iron–cyanocomplexes by TiO2 based catalysts, Appl. Catal., B, 2005, 55, 201–211.
M.-J. López-Muñoz, R. Van Grieken, J. Aguado and J. Marugán, Role of the support on the activity of silica-supported TiO2 photocatalysts: Structure of the TiO2/SBA-15 photocatalysts, Catal. Today, 2005, 101, 307–314.
S. Vilhunen and M. Sillanpää, Recent developments in photochemical and chemical AOPs in water treatment: A mini-review, Rev. Environ. Sci. Biotechnol., 2010, 9, 323–330.
F. A. Harraz, O. E. Abdel-Salam, A. A. Mostafa, R. M. Mohamed and M. Hanafy, Rapid synthesis of titania–silica nanoparticles photocatalyst by a modified sol–gel method for cyanide degradation and heavy metals removal, J. Alloys Compd., 2013, 551, 1–7.
A. Mills and S. Le Hunte, An overview of semiconductor photocatalysis, J. Photochem. Photobiol., A, 1997, 108, 1–35.
D. Chen, M. Sivakumar and A. K. Ray, Heterogeneous Photocatalysis in Environmental Remediation, Dev. Chem. Eng. Miner. Process., 2000, 8, 505–550.
M. A. Henderson, A surface science perspective on TiO2 photocatalysis, Surf. Sci. Rep., 2011, 66, 185–297.
J. Hirayama and Y. Kamiya, Combining the Photocatalyst Pt/TiO2 and the Nonphotocatalyst SnPd/Al2O3 for Effective Photocatalytic Purification of Groundwater Polluted with Nitrate, ACS Catal., 2014, 4, 2207–2215.
G. Chen, M. Sun, Q. Wei, Z. Ma and B. Du, Efficient photo-catalytic reduction of aqueous Cr(VI) over CaSb2O5(OH)2 nanocrystals under UV light illumination, Appl. Catal., B, 2012, 125, 282–287.
L. S. Zhang, K. H. Wong, H. Y. Yip, C. Hu, J. C. Yu, C. Y. Chan and P. K. Wong, Effective photocatalytic disinfection of E. coli K-12 using AgBr-Ag-Bi 2WO6 nanojunction system irradiated by visible light: The role of diffusing hydroxyl radicals, Environ. Sci. Technol., 2010, 44, 1392–1398.
S. Liu, N. Zhang, Z. R. Tang and Y. J. Xu, Synthesis of one-dimensional CdS@TiO2 core-shell nanocomposites photo-catalyst for selective redox: The dual role of TiO2 shell, ACS Appl. Mater. Interfaces, 2012, 4, 6378–6385.
J. Cao, X. Li, H. Lin, S. Chen and X. Fu, In situ preparation of novel p–n junction photocatalyst BiOI/(BiO)2CO3 with enhanced visible light photocatalytic activity, J. Hazard. Mater., 2012, 239–240, 316–324.
H. Dai, S. Zhang, Z. Hong, X. Li, G. Xu, Y. Lin and G. Chen, Enhanced Photoelectrochemical Activity of a Hierarchical-Ordered TiO2 Mesocrystal and Its Sensing Application on a Carbon Nanohorn Support Scaffold, Anal. Chem., 2014, 86, 6418–6424.
L. M. Pastrana-Martínez, S. Morales-Torres, A. G. Kontos, N. G. Moustakas, J. L. Faria, J. M. Doña-Rodríguez, P. Falaras and A. M. T. Silva, TiO2, surface modified TiO2 and graphene oxide-TiO2 photocatalysts for degradation of water pollutants under near-UV/Vis and visible light, Chem. Eng. J., 2013, 224, 17–23.
M. Yin, Z. Li, J. Kou and Z. Zou, Mechanism investigation of visible light-induced degradation in a heterogeneous TiO2/eosin Y/rhodamine B system, Environ. Sci. Technol., 2009, 43, 8361–8366.
Y. Chen, S. Yang, K. Wang and L. Lou, Role of primary active species and TiO2 surface characteristic in UV-illuminated photodegradation of Acid Orange 7, J. Photochem. Photobiol., A, 2005, 172, 47–54.
S. Song, F. Hong, Z. He, Q. Cai and J. Chen, J. Colloid Interface Sci., 2012, 378, 159–166.
M. Chen and W. Chu, Degradation of antibiotic norfloxacin in aqueous solution by visible-light-mediated C-TiO2 photocatalysis, J. Hazard. Mater., 2012, 219–220, 183–189.
A. Pandikumar and R. Ramaraj, Titanium dioxide-gold nanocomposite materials embedded in silicate sol-gel film catalyst for simultaneous photodegradation of hexavalent chromium and methylene blue, J. Hazard. Mater., 2012, 203–204, 244–250.
C. Zhao, A. Krall, H. Zhao, Q. Zhang and Y. Li, Ultrasonic spray pyrolysis synthesis of Ag/TiO2 nanocomposite photocatalysts for simultaneous H2 production and CO2 reduction, 2012, vol. 37.
F. Sheng, X. Zhu, W. Wang, H. Bai, J. Liu, P. Wang, R. Zhang, L. Han and J. Mu, Synthesis of novel polyoxometalate K6ZrW11O39Sn·12H2O and photocatalytic degradation aqueous azo dye solutions with solar irradiation, J. Mol. Catal. A: Chem., 2014, 393, 232–239.
L. Tian, L. Ye, J. Liu and L. Zan, Catal. Commun., 2012, 17, 99–103.
K. Villa, S. Murcia-López, T. Andreu and J. R. Morante, Mesoporous WO3 photocatalyst for the partial oxidation of methane to methanol using electron scavengers, Appl. Catal., B, 2015, 163, 150–155.
L. A. Betancourt-Buitrago, C. Vásquez, L. Veitia, O. Ossa-Echeverry, J. Rodriguez-Vallejo, J. Barraza-Burgos, N. Marriaga-Cabrales and F. Machuca-Martínez, An approach to utilize the artificial high power LED UV-A radiation in photoreactors for the degradation of methylene blue, Photochem. Photobiol. Sci., 2017, 16, 79–85.
L. Bridgewater, Standard Methods for Examination of Water and Wastewater, American Public Health Association, Washington DC, 22 Illustr., 2012.
H. J. Kuhn, S. E. Braslavsky and R. Schmidt, Chemical actinometry (IUPAC Technical Report), Pure Appl. Chem., 2004, 76, 2105–2146.
T. Lehóczki, É. Józsa and K. Osz, Ferrioxalate actinometry with online spectrophotometric detection, J. Photochem. Photobiol., A, 2013, 251, 63–68.
M. L. Satuf, M. J. Pierrestegui, L. Rossini, R. J. Brandi and O. M. Alfano, Kinetic modeling of azo dyes photocatalytic degradation in aqueous TiO2 suspensions. Toxicity and biodegradability evaluation, Catal. Today, 2011, 161, 121–126.
T. Aillet, K. Loubiere, O. Dechy-Cabaret and L. Prat, Accurate Measurement of the Photon Flux Received Inside Two Continuous Flow Microphotoreactors by Actinometry, Int. J. Chem. React. Eng., 2014, 12, 1–13.
K. Davididou, J. M. Monteagudo, E. Chatzisymeon, A. Durán and A. J. Expósito, Degradation and mineralization of antipyrine by UV-A LED photo-Fenton reaction intensified by ferrioxalate with addition of persulfate, Sep. Purif. Technol., 2017, 172, 227–235.
M. J. López-Muñoz, J. Aguado, R. van Grieken and J. Marugán, Simultaneous photocatalytic reduction of silver and oxidation of cyanide from dicyanoargentate solutions, Appl. Catal., B, 2009, 86, 53–62.
M. Canterino, I. Di Somma, R. Marotta and R. Andreozzi, Kinetic investigation of Cu(II) ions photoreduction in presence of titanium dioxide and formic acid., Water Res., 2008, 42, 4498–4506.
M. Valari, A. Antoniadis, D. Mantzavinos and I. Poulios, Photocatalytic reduction of Cr(VI) over titania suspensions, Catal. Today, 2015, 252, 190–194.
L. C. Ferreira, M. S. Lucas, J. R. Fernandes and P. B. Tavares, Photocatalytic oxidation of Reactive Black 5 with UV-A LEDs, J. Environ. Chem. Eng., 2016, 4, 109–114.
M. I. Litter, Heterogeneous photocatalysis Transition metal ions in photocatalytic systems, Appl. Catal., B, 1999, 23, 89–114.
X. Zhang, L. Song, X. Zeng and M. Li, Effects of Electron Donors on the TiO2 Photocatalytic Reduction of Heavy Metal Ions under Visible Light, Energy Procedia, 2012, 17, 422–428.
D. D. Kuhn and T. C. Young, Photolytic degradation of hexacyanoferrate (II) in aqueous media: The determination of the degradation kinetics, Chemosphere, 2005, 60, 1222–1230.
W. H. Koppenol and J. D. Rush, Reduction potential of the carbon dioxide/carbon dioxide radical anion: a comparison with other C1 radicals, J. Phys. Chem., 1987, 91, 4429–4430.
T. G. Le, N. T. Nguyen, Q. T. Nguyen, J. De Laat and H. Y. Dao, Effect of Chloride and Sulfate Ions on the Photoreduction Rate of Ferric Ion in UV Reactor Equipped with a Low Pressure Mercury Lamp, J. Adv. Oxid. Technol., 2014, 17, 305–330.
M. Samarghandi, J. Yang, O. Giahi and M. Shirzad-siboni, Photocatalytic reduction of hexavalent chromium with illuminated amorphous FeOOH, Environ. Technol., 2014, 37–41.
R. J. Tayade, T. S. Natarajan and H. C. Bajaj, Photocatalytic Degradation of Methylene Blue Dye Using Ultraviolet Light Emitting Diodes, Ind. Eng. Chem. Res., 2009, 48, 10262–10267.
S. Bratsch, Standard electrode potentials and temperature coefficients in water at 298.15 K, J. Phys. Chem. Ref. Data, 1989, 18, 1–21.
A. J. Bard, R. Parsons and J. Jordan, Standard potentials in aqueous solution, Marcel Dekker, New York, N.Y., 1983.
D. Farreras and J. G. Curcó, Eliminación de contaminantes por Fotocatálisis Heterogenea.(Blesa, M. A.)(Gráfica 12 y 50,), 2001.
M. Barakat, Removal of toxic cyanide and Cu(II) Ions from water by illuminated TiO2 catalyst, Appl. Catal., B, 2004, 53, 13–20.
J. K. Yang, S. M. Lee, M. Farrokhi, O. Giahi and M. Shirzad Siboni, Photocatalytic removal of Cr(VI) with illuminated TiO2, Desalin. Water Treat., 2012, 46, 375–380.
X. Wang, S. O. Pehkonen and A. K. Ray, Removal of Aqueous Cr(VI) by a Combination of Photocatalytic Reduction and Coprecipitation, Ind. Eng. Chem. Res., 2004, 43, 1665–1672.
N. Daneshvar, A. Aleboyeh and A. R. Khataee, The evaluation of electrical energy per order (E Eo) for photooxidative decolorization of four textile dye solutions by the kinetic model, Chemosphere, 2005, 59, 761–767.
D. Li, Q. Zhu, C. Han, Y. Yang, W. Jiang and Z. Zhang, Photocatalytic degradation of recalcitrant organic pollutants in water using a novel cylindrical multi-column photoreactor packed with TiO2-coated silica gel beads, J. Hazard. Mater., 2015, 285, 398–408.
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Betancourt-Buitrago, L.A., Ossa-Echeverry, O.E., Rodriguez-Vallejo, J.C. et al. Anoxic photocatalytic treatment of synthetic mining wastewater using TiO2 and scavengers for complexed cyanide recovery. Photochem Photobiol Sci 18, 853–862 (2019). https://doi.org/10.1039/c8pp00281a
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DOI: https://doi.org/10.1039/c8pp00281a