Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from water

The accumulation of cyanobacteria produced due to eutrophication processes and the increment of different pollutants in water as a result of industrial processes affects aquatic environments such as the ocean, rivers, and swamps. In this work, cyanobacterial biomass was used as a biosorbent for the...

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Autores:
Diaz-Uribe, Carlos
Angulo, Barni
Patiño, Karen
Hernández, Vincent
vallejo, william
Gallego-Cartagena, Euler
Romero Bohórquez, Arnold Rafael
Zarate, Ximena
Schott, Eduardo
Tipo de recurso:
Article of journal
Fecha de publicación:
2021
Institución:
Corporación Universidad de la Costa
Repositorio:
REDICUC - Repositorio CUC
Idioma:
eng
OAI Identifier:
oai:repositorio.cuc.edu.co:11323/9057
Acceso en línea:
https://hdl.handle.net/11323/9057
https://doi.org/10.3390/w13223176
https://repositorio.cuc.edu.co/
Palabra clave:
Biosorbent
Cyanobacterial
Recalcitrant dyes
Adsorption
Rights
openAccess
License
© 2021 by the authors. Licensee MDPI, Basel, Switzerland
id RCUC2_ad6bd1360ec5a60ea1188427e8342a9d
oai_identifier_str oai:repositorio.cuc.edu.co:11323/9057
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network_name_str REDICUC - Repositorio CUC
repository_id_str
dc.title.eng.fl_str_mv Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from water
title Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from water
spellingShingle Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from water
Biosorbent
Cyanobacterial
Recalcitrant dyes
Adsorption
title_short Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from water
title_full Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from water
title_fullStr Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from water
title_full_unstemmed Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from water
title_sort Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from water
dc.creator.fl_str_mv Diaz-Uribe, Carlos
Angulo, Barni
Patiño, Karen
Hernández, Vincent
vallejo, william
Gallego-Cartagena, Euler
Romero Bohórquez, Arnold Rafael
Zarate, Ximena
Schott, Eduardo
dc.contributor.author.spa.fl_str_mv Diaz-Uribe, Carlos
Angulo, Barni
Patiño, Karen
Hernández, Vincent
vallejo, william
Gallego-Cartagena, Euler
Romero Bohórquez, Arnold Rafael
Zarate, Ximena
Schott, Eduardo
dc.subject.proposal.eng.fl_str_mv Biosorbent
Cyanobacterial
Recalcitrant dyes
Adsorption
topic Biosorbent
Cyanobacterial
Recalcitrant dyes
Adsorption
description The accumulation of cyanobacteria produced due to eutrophication processes and the increment of different pollutants in water as a result of industrial processes affects aquatic environments such as the ocean, rivers, and swamps. In this work, cyanobacterial biomass was used as a biosorbent for the removal of a commercial dye, methylene blue (MB). Thus, MB was removed from biomass obtained from cyanobacterial samples collected from the swamp located in the Colombian Caribbean. Spectroscopical techniques such as FTIR, SEM, EDX measurements were used for the physico-chemical characterization of the bio-adsorbent material. Furthermore, we present the effect of various adsorption parameters such as pH, MB dose, time, and adsorbent concentration on the adsorbent equilibrium process. Three different isotherm models were used to model the MB adsorption on biomass. The functional groups identified on biomass suggest that these models are suitable for the characterization of the sorption of cationic dyes on the surfaces of the biomass; in addition, an SEM assay showed the heterogeneous surface of the biomass’ morphology. The equilibrium tests suggested a multilayer type adsorption of MB on the biomass surface. The kinetics results show that a pseudo-second order kinetic model was suitable to describe the MB adsorption on the biomass surface. Finally, the herein obtained results give an alternative to resolve the eutrophication problems generated by cyanobacterial growth in the swamp “Ciénaga de Malambo”.
publishDate 2021
dc.date.issued.none.fl_str_mv 2021-11-10
dc.date.accessioned.none.fl_str_mv 2022-03-08T16:14:03Z
dc.date.available.none.fl_str_mv 2022-03-08T16:14:03Z
dc.type.spa.fl_str_mv Artículo de revista
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dc.type.coar.spa.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.content.spa.fl_str_mv Text
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/article
dc.type.redcol.spa.fl_str_mv http://purl.org/redcol/resource_type/ART
dc.type.version.spa.fl_str_mv info:eu-repo/semantics/acceptedVersion
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dc.identifier.citation.spa.fl_str_mv Diaz-Uribe, C.; Angulo, B.; Patiño, K.; Hernández, V.; Vallejo, W.; Gallego-Cartagena, E.; Romero Bohórquez, A.R.; Zarate, X.; Schott, E. Cyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water. Water 2021, 13, 3176. https://doi.org/ 10.3390/w13223176
dc.identifier.issn.spa.fl_str_mv 2073-4441
dc.identifier.uri.spa.fl_str_mv https://hdl.handle.net/11323/9057
dc.identifier.url.spa.fl_str_mv https://doi.org/10.3390/w13223176
dc.identifier.doi.spa.fl_str_mv 10.3390/w13223176
dc.identifier.instname.spa.fl_str_mv Corporación Universidad de la Costa
dc.identifier.reponame.spa.fl_str_mv REDICUC - Repositorio CUC
dc.identifier.repourl.spa.fl_str_mv https://repositorio.cuc.edu.co/
identifier_str_mv Diaz-Uribe, C.; Angulo, B.; Patiño, K.; Hernández, V.; Vallejo, W.; Gallego-Cartagena, E.; Romero Bohórquez, A.R.; Zarate, X.; Schott, E. Cyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water. Water 2021, 13, 3176. https://doi.org/ 10.3390/w13223176
2073-4441
10.3390/w13223176
Corporación Universidad de la Costa
REDICUC - Repositorio CUC
url https://hdl.handle.net/11323/9057
https://doi.org/10.3390/w13223176
https://repositorio.cuc.edu.co/
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.ispartofjournal.spa.fl_str_mv Water
dc.relation.references.spa.fl_str_mv 1. Adeel, M.; Song, X.; Wang, Y.; Francis, D.; Yang, Y. Environmental impact of estrogens on human, animal and plant life: A critical review. Environ. Int. 2017, 99, 107–119. [CrossRef]
2. Škrbi´c, B.D.; Kadokami, K.; Anti´c, I. Survey on the micro-pollutants presence in surface water system of northern Serbia and environmental and health risk assessment. Environ. Res. 2018, 166, 130–140. [CrossRef]
3. Hanafi, M.F.; Sapawe, N. A review on the current techniques and technologies of organic pollutants removal from water/wastewater. Mater. Today Proc. 2021, 31, A158–A165. [CrossRef]
4. Sullivan, R.C.; Levy, R.C.; Da Silva, A.M.; Pryor, S.C. Developing and diagnosing climate change indicators of regional aerosol optical properties. Sci. Rep. 2017, 7, 1–13. [CrossRef] [PubMed]
5. W.M.O. State of the Global Climate 2020; WMO-No. 1264; WMO: Geneva, Switzerland, 2021.
6. Webb, A.E.; van Heuven, S.M.A.C.; de Bakker, D.M.; van Duyl, F.C.; Reichart, G.-J.; de Nooijer, L.J. Combined Effects of Experimental Acidification and Eutrophication on Reef Sponge Bioerosion Rates. Front. Mar. Sci. 2017, 4, 311. [CrossRef]
7. Govers, L.L.; Lamers, L.P.M.; Bouma, T.J.; de Brouwer, J.H.F.; van Katwijk, M.M. Eutrophication threatens Caribbean seagrasses—An example from Curaçao and Bonaire. Mar. Pollut. Bull. 2014, 89, 481–486. [CrossRef]
8. Visser, P.M.; Verspagen, J.M.H.; Sandrini, G.; Stal, L.J.; Matthijs, H.C.P.; Davis, T.W.; Paerl, H.W.; Huisman, J. How rising CO2 and global warming may stimulate harmful cyanobacterial blooms. Harmful Algae 2016, 54, 145–159. [CrossRef] [PubMed]
9. WHO. Toxic Cyanobacteria in Water: A Guide to Their Public Health Consequences, Monitoring and Management, 2nd ed.; Chorus, I., Welker, M., Eds.; CRC Press: New York, NY, USA, 2021.
10. Salleh, M.A.M.; Mahmoud, D.K.; Karim, W.A.W.A.; Idris, A. Cationic and anionic dye adsorption by agricultural solid wastes: A comprehensive review. Desalination 2011, 280, 1–13. [CrossRef]
11. Zhou, Y.; Lu, J.; Zhou, Y.; Liu, Y. Recent advances for dyes removal using novel adsorbents: A review. Environ. Pollut. 2019, 252, 352–365. [CrossRef]
12. Hao, O.J.; Kim, H.; Chiang, P.C. Decolorization of wastewater. Crit. Rev. Environ. Sci. Technol. 2000, 30, 449–505. [CrossRef]
13. Bayomie, O.S.; Kandeel, H.; Shoeib, T.; Yang, H.; Youssef, N.; El-Sayed, M.M.H. Novel approach for effective removal of methylene blue dye from water using fava bean peel waste. Sci. Rep. 2020, 10, 1–10.
14. Al-Zaban, M.I.; Mahmoud, M.A.; AlHarbi, M.A. Catalytic degradation of methylene blue using silver nanoparticles synthesized by honey. Saudi J. Biol. Sci. 2021, 28, 2007–2013. [CrossRef]
15. Krosuri, A.; Wu, S.; Bashir, M.A.; Walquist, M. Efficient degradation and mineralization of methylene blue via continuous-flow electrohydraulic plasma discharge. J. Water Process Eng. 2021, 40, 101926. [CrossRef]
16. Gemici, B.T.; Ozel, H.U.; Ozel, H.B. Removal of methylene blue onto forest wastes: Adsorption isotherms, kinetics and thermodynamic analysis. Environ. Technol. Innov. 2021, 22, 101501. [CrossRef]
17. Aichour, A.; Zaghouane-Boudiaf, H.; Mohamed Zuki, F.B.; Kheireddine Aroua, M.; Ibbora, C.V. Low-cost, biodegradable and highly effective adsorbents for batch and column fixed bed adsorption processes of methylene blue. J. Environ. Chem. Eng. 2019, 7, 103409. [CrossRef]
18. Afshariani, F.; Roosta, A. Experimental study and mathematical modeling of biosorption of methylene blue from aqueous solution in a packed bed of microalgae Scenedesmus. J. Clean. Prod. 2019, 225, 133–142. [CrossRef]
19. Can-Terzi, B.; Goren, A.Y.; Okten, H.E.; Sofuoglu, S.C. Biosorption of methylene blue from water by live Lemna minor. Environ. Technol. Innov. 2021, 22, 101432. [CrossRef]
20. Rangabhashiyam, S.; Lata, S.; Balasubramanian, P. Biosorption characteristics of methylene blue and malachite green from simulated wastewater onto Carica papaya wood biosorbent. Surf. Interfaces 2018, 10, 197–215.
21. De Carvalho, H.P.; Huang, J.; Zhao, M.; Liu, G.; Dong, L.; Liu, X. Improvement of Methylene Blue removal by electrocoagulation/banana peel adsorption coupling in a batch system. Alex. Eng. J. 2015, 54, 777–786. [CrossRef]
22. Yu, K.L.; Lee, X.J.; Ong, H.C.; Chen, W.H.; Chang, J.S.; Lin, C.S.; Show, P.L.; Ling, T.C. Adsorptive removal of cationic methylene blue and anionic Congo red dyes using wet-torrefied microalgal biochar: Equilibrium, kinetic and mechanism modeling. Environ. Pollut. 2021, 272, 115986. [CrossRef]
23. Azam, R.; Kothari, R.; Singh, H.M.; Ahmad, S.; Ashokkumar, V.; Tyagi, V.V. Production of algal biomass for its biochemical profile using slaughterhouse wastewater for treatment under axenic conditions. Bioresour. Technol. 2020, 306, 123116. [CrossRef]
24. Cui, Y.; Masud, A.; Aich, N.; Atkinson, J.D. Phenol and Cr(VI) removal using materials derived from harmful algal bloom biomass: Characterization and performance assessment for a biosorbent, a porous carbon, and Fe/C composites. J. Hazard. Mater. 2019, 368, 477–486. [CrossRef] [PubMed]
25. Ani, J.U.; Akpomie, K.G.; Okoro, U.C.; Aneke, L.E.; Onukwuli, O.D.; Ujam, O.T. Potentials of activated carbon produced from biomass materials for sequestration of dyes, heavy metals, and crude oil components from aqueous environment. Appl. Water Sci. 2020, 10, 1–11. [CrossRef]
26. Vahabisani, A.; An, C. Use of biomass-derived adsorbents for the removal of petroleum pollutants from water: A mini-review. Environ. Syst. Res. 2021, 10, 25. [CrossRef]
27. Gunasundari, E.; Kumar, P.K. Adsorption isotherm, kinetics and thermodynamic analysis of Cu(II) ions onto the dried algal biomass (Spirulina platensis). J. Ind. Eng. Chem. 2017, 56, 129–144.
28. Nithya, K.; Sathish, A.; Pradeep, K.; Kiran Baalaji, S. Algal biomass waste residues of Spirulina platensis for chromium adsorption and modeling studies. J. Environ. Chem. Eng. 2019, 7, 103273. [CrossRef]
29. Patiño-Camelo, K.; Diaz-Uribe, C.; Gallego-Cartagena, E.; Vallejo, W.; Martinez, V.; Quiñones, C.; Hurtado, M.; Schott, E. Cyanobacterial Biomass Pigments as Natural Sensitizer for TiO2 Thin Films. Int. J. Photoenergy 2019, 2019, 1–9. [CrossRef]
30. Saravanan, A.; Sundararaman, T.R.; Jeevanantham, S.; Karishma, S.; Kumar, P.S.; Yaashikaa, P.R. Effective adsorption of Cu(II) ions on sustainable adsorbent derived from mixed biomass (Aspergillus campestris and agro waste): Optimization, isotherm and kinetics study. Groundw. Sustain. Dev. 2020, 11, 100460. [CrossRef]
31. Ayachi, F.; Kyzas, G.Z.; Aatrous, M.; Sakly, A.; Lamine, A.B. Evaluating the adsorption of Ni(II) and Cu(II) on spirulina biomass by statistical physics formalism. J. Ind. Eng. Chem. 2019, 80, 461–470. [CrossRef]
32. Langmuir, I. The adsorption of gases on plane surfaces of glass, mica and platinum. J. Am. Chem. Soc. 1918, 40, 1361–1403. [CrossRef]
33. Freundlich, H.M.F. Over the Adsorption in Solution. J. Phys. Chem. 1906, 57, 385–471.
34. Saha, P.; Chowdhury, S.; Gupta, S.; Kumar, I. Insight into adsorption equilibrium, kinetics and thermodynamics of Malachite Green onto clayey soil of Indian origin. Chem. Eng. J. 2010, 165, 874–882. [CrossRef]
35. Inyinbor, A.A.; Adekola, F.A.; Olatunji, G.A. Kinetics, isotherms and thermodynamic modeling of liquid phase adsorption of Rhodamine B dye onto Raphia hookerie fruit epicarp. Water Resour. Ind. 2016, 15, 14–27. [CrossRef]
36. Kapoor, A.; Yang, R.T. Surface diffusion on energetically heterogeneous surfaces. AIChE J. 1989, 35, 1735–1738. [CrossRef]
37. Benjelloun, M.; Miyah, Y.; Akdemir Evrendilek, G.; Zerrouq, F.; Lairini, S. Recent Advances in Adsorption Kinetic Models: Their Application to Dye Types. Arab. J. Chem. 2021, 14, 103031. [CrossRef]
38. Özer, T.; Yalçın, D.; Erkaya, I.A.; Udoh, A.U. Identification and Characterization of Some Species of Cyanobacteria, Chlorophyta and BacillariophytaUsing Fourier-Transform Infrared (FTIR) Spectroscopy. IOSR J. Pharm. Biol. Sci. 2016, 11, 20–27.
39. Coates, J. Interpretation of Infrared Spectra, A Practical Approach. In Encyclopedia of Analytical Chemistry; John Wiley & Sons, Ltd.: Hoboken, NJ, USA, 2006.
40. Wang, S.; Baxter, L.; Fonseca, F. Biomass fly ash in concrete: SEM, EDX and ESEM analysis. Fuel 2008, 87, 372–379. [CrossRef]
41. Guarín, J.R.; Moreno-Pirajan, J.C.; Giraldo, L. Kinetic Study of the Bioadsorption of Methylene Blue on the Surface of the Biomass Obtained from the Algae D. antarctica. J. Chem. 2018, 2018, 2124845. [CrossRef]
42. Singh, J.; Kaur, G. Freundlich, Langmuir adsorption isotherms and kinetics for the removal of malachite green from aqueous solutions using agricultural waste rice straw. Int. J. Environ. Sci. 2013, 4, 250–258.
43. Ncibi, M.C.; Mahjoub, B.; Seffen, M. Kinetic and equilibrium studies of methylene blue biosorption by Posidonia oceanica (L.) fibres. J. Hazard. Mater. 2007, 139, 280–285. [CrossRef]
44. Moghazy, R.M. Activated biomass of the green microalga chlamydomonas variabilis as an efficient biosorbent to remove methylene blue dye from aqueous solutions. Water SA 2019, 45, 20–28. [CrossRef]
45. Hameed, B.H. Spent tea leaves: A new non-conventional and low-cost adsorbent for removal of basic dye from aqueous solutions. J. Hazard. Mater. 2009, 161, 753–759. [CrossRef] [PubMed]
46. Gupta, V.K.; Rastogi, A. Sorption and desorption studies of chromium(VI) from nonviable cyanobacterium Nostoc muscorum biomass. J. Hazard. Mater. 2008, 154, 347–354. [CrossRef] [PubMed]
47. Deniz, F.; Karaman, S. Removal of Basic Red 46 dye from aqueous solution by pine tree leaves. Chem. Eng. J. 2011, 170, 67–74. [CrossRef]
48. Siqueira, T.C.A.; da Silva, I.Z.; Rubio, A.J.; Bergamasco, R.; Gasparotto, F.; Paccola, E.A.S.; Yamaguchi, N.U. Sugarcane bagasse as an efficient biosorbent for methylene blue removal: Kinetics, isotherms and thermodynamics. Int. J. Environ. Res. Public Health 2020, 17, 1–13.
49. Uddin, M.K.; Nasar, A. Walnut shell powder as a low-cost adsorbent for methylene blue dye: Isotherm, kinetics, thermodynamic, desorption and response surface methodology examinations. Sci. Rep. 2020, 10, 1–13. [CrossRef] [PubMed]
50. Pavan, F.A.; Lima, E.C.; Dias, S.L.P.; Mazzocato, A.C. Methylene blue biosorption from aqueous solutions by yellow passion fruit waste. J. Hazard. Mater. 2008, 150, 703–712. [CrossRef]
51. Ozudogru, Y.; Merdivan, M.; Goksan, T. Removal of methylene blue from aqueous solutions by brown alga Cystoseira barbata. Desalin. Water Treat. 2017, 62, 267–272. [CrossRef]
52. Húmpola, P.D.; Odetti, H.S.; Fertitta, A.E.; Vicente, J.L. Thermodynamic analysis of adsorption models of phenol in liquid phase on different activated carbons. J. Chil. Chem. Soc. 2013, 58, 1541–1544. [CrossRef]
53. Yang, Z.H.; Xiong, S.; Wang, B.; Li, Q.; Yang, W.C. Cr(III) adsorption by sugarcane pulp residue and biochar. J. Cent. South Univ. 2013, 20, 1319–1325. [CrossRef]
54. Kiliç, M.; Kirbiyik, Ç.; Çepeliogullar, Ö.; Pütün, A.E. Adsorption of heavy metal ions from aqueous solutions by bio-char, a ˇ by-product of pyrolysis. Appl. Surf. Sci. 2013, 283, 856–862. [CrossRef]
55. Amouei, A.I.; Amooey, A.A.; Asgharzadeh, F. Cadmium Removal from Aqueous Solution by Canola Residues: Adsorption Equilibrium and Kinetics; Iranian Association of Chemical Engineers (IAChE): Tehran, Iran, 2013; Volume 10.
56. Kannan, N.; Sundaram, M.M. Kinetics and mechanism of removal of methylene blue by adsorption on various carbons—A comparative study. Dye. Pigment. 2001, 51, 25–40. [CrossRef]
57. Wu, Q.; Xian, Y.; He, Z.; Zhang, Q.; Wu, J.; Yang, G.; Zhang, X.; Qi, H.; Ma, J.; Xiao, Y.; et al. Adsorption characteristics of pb(ii) using biochar derived from spent mushroom substrate. Sci. Rep. 2019, 9, 1–11. [CrossRef]
58. Uwamungu, J.Y.; Nartey, O.D.; Uwimpaye, F.; Dong, W.; Hu, C. Evaluating biochar impact on topramezone adsorption behavior on soil under no-tillage and rotary tillage treatments: Isotherms and kinetics. Int. J. Environ. Res. Public Health 2019, 16, 5034. [CrossRef] [PubMed]
59. Nworie, F.S.; Nwabue, F.I.; Oti, W.; Mbam, E.; Nwali, B.U. Removal of methylene blue from aqueous solution using activated rice husk biochar: Adsorption isotherms, kinetics and error analysis. J. Chil. Chem. Soc. 2019, 64, 4365–4376. [CrossRef]
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spelling Diaz-Uribe, CarlosAngulo, BarniPatiño, KarenHernández, Vincentvallejo, williamGallego-Cartagena, EulerRomero Bohórquez, Arnold RafaelZarate, XimenaSchott, Eduardo2022-03-08T16:14:03Z2022-03-08T16:14:03Z2021-11-10Diaz-Uribe, C.; Angulo, B.; Patiño, K.; Hernández, V.; Vallejo, W.; Gallego-Cartagena, E.; Romero Bohórquez, A.R.; Zarate, X.; Schott, E. Cyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water. Water 2021, 13, 3176. https://doi.org/ 10.3390/w132231762073-4441https://hdl.handle.net/11323/9057https://doi.org/10.3390/w1322317610.3390/w13223176Corporación Universidad de la CostaREDICUC - Repositorio CUChttps://repositorio.cuc.edu.co/The accumulation of cyanobacteria produced due to eutrophication processes and the increment of different pollutants in water as a result of industrial processes affects aquatic environments such as the ocean, rivers, and swamps. In this work, cyanobacterial biomass was used as a biosorbent for the removal of a commercial dye, methylene blue (MB). Thus, MB was removed from biomass obtained from cyanobacterial samples collected from the swamp located in the Colombian Caribbean. Spectroscopical techniques such as FTIR, SEM, EDX measurements were used for the physico-chemical characterization of the bio-adsorbent material. Furthermore, we present the effect of various adsorption parameters such as pH, MB dose, time, and adsorbent concentration on the adsorbent equilibrium process. Three different isotherm models were used to model the MB adsorption on biomass. The functional groups identified on biomass suggest that these models are suitable for the characterization of the sorption of cationic dyes on the surfaces of the biomass; in addition, an SEM assay showed the heterogeneous surface of the biomass’ morphology. The equilibrium tests suggested a multilayer type adsorption of MB on the biomass surface. The kinetics results show that a pseudo-second order kinetic model was suitable to describe the MB adsorption on the biomass surface. Finally, the herein obtained results give an alternative to resolve the eutrophication problems generated by cyanobacterial growth in the swamp “Ciénaga de Malambo”.14 páginasapplication/pdfengMDPI Multidisciplinary Digital Publishing InstituteSwitzerland© 2021 by the authors. Licensee MDPI, Basel, SwitzerlandAtribución 4.0 Internacional (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Cyanobacterial biomass as a potential biosorbent for the removal of recalcitrant dyes from waterArtículo de revistahttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1Textinfo:eu-repo/semantics/articlehttp://purl.org/redcol/resource_type/ARTinfo:eu-repo/semantics/acceptedVersionhttps://www.mdpi.com/2073-4441/13/22/3176Water1. Adeel, M.; Song, X.; Wang, Y.; Francis, D.; Yang, Y. Environmental impact of estrogens on human, animal and plant life: A critical review. Environ. Int. 2017, 99, 107–119. [CrossRef]2. Škrbi´c, B.D.; Kadokami, K.; Anti´c, I. Survey on the micro-pollutants presence in surface water system of northern Serbia and environmental and health risk assessment. Environ. Res. 2018, 166, 130–140. [CrossRef]3. Hanafi, M.F.; Sapawe, N. A review on the current techniques and technologies of organic pollutants removal from water/wastewater. Mater. Today Proc. 2021, 31, A158–A165. [CrossRef]4. Sullivan, R.C.; Levy, R.C.; Da Silva, A.M.; Pryor, S.C. Developing and diagnosing climate change indicators of regional aerosol optical properties. Sci. Rep. 2017, 7, 1–13. [CrossRef] [PubMed]5. W.M.O. State of the Global Climate 2020; WMO-No. 1264; WMO: Geneva, Switzerland, 2021.6. Webb, A.E.; van Heuven, S.M.A.C.; de Bakker, D.M.; van Duyl, F.C.; Reichart, G.-J.; de Nooijer, L.J. Combined Effects of Experimental Acidification and Eutrophication on Reef Sponge Bioerosion Rates. Front. Mar. Sci. 2017, 4, 311. [CrossRef]7. Govers, L.L.; Lamers, L.P.M.; Bouma, T.J.; de Brouwer, J.H.F.; van Katwijk, M.M. Eutrophication threatens Caribbean seagrasses—An example from Curaçao and Bonaire. Mar. Pollut. Bull. 2014, 89, 481–486. [CrossRef]8. Visser, P.M.; Verspagen, J.M.H.; Sandrini, G.; Stal, L.J.; Matthijs, H.C.P.; Davis, T.W.; Paerl, H.W.; Huisman, J. How rising CO2 and global warming may stimulate harmful cyanobacterial blooms. Harmful Algae 2016, 54, 145–159. [CrossRef] [PubMed]9. WHO. Toxic Cyanobacteria in Water: A Guide to Their Public Health Consequences, Monitoring and Management, 2nd ed.; Chorus, I., Welker, M., Eds.; CRC Press: New York, NY, USA, 2021.10. Salleh, M.A.M.; Mahmoud, D.K.; Karim, W.A.W.A.; Idris, A. Cationic and anionic dye adsorption by agricultural solid wastes: A comprehensive review. Desalination 2011, 280, 1–13. [CrossRef]11. Zhou, Y.; Lu, J.; Zhou, Y.; Liu, Y. Recent advances for dyes removal using novel adsorbents: A review. Environ. Pollut. 2019, 252, 352–365. [CrossRef]12. Hao, O.J.; Kim, H.; Chiang, P.C. Decolorization of wastewater. Crit. Rev. Environ. Sci. Technol. 2000, 30, 449–505. [CrossRef]13. Bayomie, O.S.; Kandeel, H.; Shoeib, T.; Yang, H.; Youssef, N.; El-Sayed, M.M.H. Novel approach for effective removal of methylene blue dye from water using fava bean peel waste. Sci. Rep. 2020, 10, 1–10.14. Al-Zaban, M.I.; Mahmoud, M.A.; AlHarbi, M.A. Catalytic degradation of methylene blue using silver nanoparticles synthesized by honey. Saudi J. Biol. Sci. 2021, 28, 2007–2013. [CrossRef]15. Krosuri, A.; Wu, S.; Bashir, M.A.; Walquist, M. Efficient degradation and mineralization of methylene blue via continuous-flow electrohydraulic plasma discharge. J. Water Process Eng. 2021, 40, 101926. [CrossRef]16. Gemici, B.T.; Ozel, H.U.; Ozel, H.B. Removal of methylene blue onto forest wastes: Adsorption isotherms, kinetics and thermodynamic analysis. Environ. Technol. Innov. 2021, 22, 101501. [CrossRef]17. Aichour, A.; Zaghouane-Boudiaf, H.; Mohamed Zuki, F.B.; Kheireddine Aroua, M.; Ibbora, C.V. Low-cost, biodegradable and highly effective adsorbents for batch and column fixed bed adsorption processes of methylene blue. J. Environ. Chem. Eng. 2019, 7, 103409. [CrossRef]18. Afshariani, F.; Roosta, A. Experimental study and mathematical modeling of biosorption of methylene blue from aqueous solution in a packed bed of microalgae Scenedesmus. J. Clean. Prod. 2019, 225, 133–142. [CrossRef]19. Can-Terzi, B.; Goren, A.Y.; Okten, H.E.; Sofuoglu, S.C. Biosorption of methylene blue from water by live Lemna minor. Environ. Technol. Innov. 2021, 22, 101432. [CrossRef]20. Rangabhashiyam, S.; Lata, S.; Balasubramanian, P. Biosorption characteristics of methylene blue and malachite green from simulated wastewater onto Carica papaya wood biosorbent. Surf. Interfaces 2018, 10, 197–215.21. De Carvalho, H.P.; Huang, J.; Zhao, M.; Liu, G.; Dong, L.; Liu, X. Improvement of Methylene Blue removal by electrocoagulation/banana peel adsorption coupling in a batch system. Alex. Eng. J. 2015, 54, 777–786. [CrossRef]22. Yu, K.L.; Lee, X.J.; Ong, H.C.; Chen, W.H.; Chang, J.S.; Lin, C.S.; Show, P.L.; Ling, T.C. Adsorptive removal of cationic methylene blue and anionic Congo red dyes using wet-torrefied microalgal biochar: Equilibrium, kinetic and mechanism modeling. Environ. Pollut. 2021, 272, 115986. [CrossRef]23. Azam, R.; Kothari, R.; Singh, H.M.; Ahmad, S.; Ashokkumar, V.; Tyagi, V.V. Production of algal biomass for its biochemical profile using slaughterhouse wastewater for treatment under axenic conditions. Bioresour. Technol. 2020, 306, 123116. [CrossRef]24. Cui, Y.; Masud, A.; Aich, N.; Atkinson, J.D. Phenol and Cr(VI) removal using materials derived from harmful algal bloom biomass: Characterization and performance assessment for a biosorbent, a porous carbon, and Fe/C composites. J. Hazard. Mater. 2019, 368, 477–486. [CrossRef] [PubMed]25. Ani, J.U.; Akpomie, K.G.; Okoro, U.C.; Aneke, L.E.; Onukwuli, O.D.; Ujam, O.T. Potentials of activated carbon produced from biomass materials for sequestration of dyes, heavy metals, and crude oil components from aqueous environment. Appl. Water Sci. 2020, 10, 1–11. [CrossRef]26. Vahabisani, A.; An, C. Use of biomass-derived adsorbents for the removal of petroleum pollutants from water: A mini-review. Environ. Syst. Res. 2021, 10, 25. [CrossRef]27. Gunasundari, E.; Kumar, P.K. Adsorption isotherm, kinetics and thermodynamic analysis of Cu(II) ions onto the dried algal biomass (Spirulina platensis). J. Ind. Eng. Chem. 2017, 56, 129–144.28. Nithya, K.; Sathish, A.; Pradeep, K.; Kiran Baalaji, S. Algal biomass waste residues of Spirulina platensis for chromium adsorption and modeling studies. J. Environ. Chem. Eng. 2019, 7, 103273. [CrossRef]29. Patiño-Camelo, K.; Diaz-Uribe, C.; Gallego-Cartagena, E.; Vallejo, W.; Martinez, V.; Quiñones, C.; Hurtado, M.; Schott, E. Cyanobacterial Biomass Pigments as Natural Sensitizer for TiO2 Thin Films. Int. J. Photoenergy 2019, 2019, 1–9. [CrossRef]30. Saravanan, A.; Sundararaman, T.R.; Jeevanantham, S.; Karishma, S.; Kumar, P.S.; Yaashikaa, P.R. Effective adsorption of Cu(II) ions on sustainable adsorbent derived from mixed biomass (Aspergillus campestris and agro waste): Optimization, isotherm and kinetics study. Groundw. Sustain. Dev. 2020, 11, 100460. [CrossRef]31. Ayachi, F.; Kyzas, G.Z.; Aatrous, M.; Sakly, A.; Lamine, A.B. Evaluating the adsorption of Ni(II) and Cu(II) on spirulina biomass by statistical physics formalism. J. Ind. Eng. Chem. 2019, 80, 461–470. [CrossRef]32. Langmuir, I. The adsorption of gases on plane surfaces of glass, mica and platinum. J. Am. Chem. Soc. 1918, 40, 1361–1403. [CrossRef]33. Freundlich, H.M.F. Over the Adsorption in Solution. J. Phys. Chem. 1906, 57, 385–471.34. Saha, P.; Chowdhury, S.; Gupta, S.; Kumar, I. Insight into adsorption equilibrium, kinetics and thermodynamics of Malachite Green onto clayey soil of Indian origin. Chem. Eng. J. 2010, 165, 874–882. [CrossRef]35. Inyinbor, A.A.; Adekola, F.A.; Olatunji, G.A. Kinetics, isotherms and thermodynamic modeling of liquid phase adsorption of Rhodamine B dye onto Raphia hookerie fruit epicarp. Water Resour. Ind. 2016, 15, 14–27. [CrossRef]36. Kapoor, A.; Yang, R.T. Surface diffusion on energetically heterogeneous surfaces. AIChE J. 1989, 35, 1735–1738. [CrossRef]37. Benjelloun, M.; Miyah, Y.; Akdemir Evrendilek, G.; Zerrouq, F.; Lairini, S. Recent Advances in Adsorption Kinetic Models: Their Application to Dye Types. Arab. J. Chem. 2021, 14, 103031. [CrossRef]38. Özer, T.; Yalçın, D.; Erkaya, I.A.; Udoh, A.U. Identification and Characterization of Some Species of Cyanobacteria, Chlorophyta and BacillariophytaUsing Fourier-Transform Infrared (FTIR) Spectroscopy. IOSR J. Pharm. Biol. Sci. 2016, 11, 20–27.39. Coates, J. Interpretation of Infrared Spectra, A Practical Approach. In Encyclopedia of Analytical Chemistry; John Wiley & Sons, Ltd.: Hoboken, NJ, USA, 2006.40. Wang, S.; Baxter, L.; Fonseca, F. Biomass fly ash in concrete: SEM, EDX and ESEM analysis. Fuel 2008, 87, 372–379. [CrossRef]41. Guarín, J.R.; Moreno-Pirajan, J.C.; Giraldo, L. Kinetic Study of the Bioadsorption of Methylene Blue on the Surface of the Biomass Obtained from the Algae D. antarctica. J. Chem. 2018, 2018, 2124845. [CrossRef]42. Singh, J.; Kaur, G. Freundlich, Langmuir adsorption isotherms and kinetics for the removal of malachite green from aqueous solutions using agricultural waste rice straw. Int. J. Environ. Sci. 2013, 4, 250–258.43. Ncibi, M.C.; Mahjoub, B.; Seffen, M. Kinetic and equilibrium studies of methylene blue biosorption by Posidonia oceanica (L.) fibres. J. Hazard. Mater. 2007, 139, 280–285. [CrossRef]44. Moghazy, R.M. Activated biomass of the green microalga chlamydomonas variabilis as an efficient biosorbent to remove methylene blue dye from aqueous solutions. Water SA 2019, 45, 20–28. [CrossRef]45. Hameed, B.H. Spent tea leaves: A new non-conventional and low-cost adsorbent for removal of basic dye from aqueous solutions. J. Hazard. Mater. 2009, 161, 753–759. [CrossRef] [PubMed]46. Gupta, V.K.; Rastogi, A. Sorption and desorption studies of chromium(VI) from nonviable cyanobacterium Nostoc muscorum biomass. J. Hazard. Mater. 2008, 154, 347–354. [CrossRef] [PubMed]47. Deniz, F.; Karaman, S. Removal of Basic Red 46 dye from aqueous solution by pine tree leaves. Chem. Eng. J. 2011, 170, 67–74. [CrossRef]48. Siqueira, T.C.A.; da Silva, I.Z.; Rubio, A.J.; Bergamasco, R.; Gasparotto, F.; Paccola, E.A.S.; Yamaguchi, N.U. Sugarcane bagasse as an efficient biosorbent for methylene blue removal: Kinetics, isotherms and thermodynamics. Int. J. Environ. Res. Public Health 2020, 17, 1–13.49. Uddin, M.K.; Nasar, A. Walnut shell powder as a low-cost adsorbent for methylene blue dye: Isotherm, kinetics, thermodynamic, desorption and response surface methodology examinations. Sci. Rep. 2020, 10, 1–13. [CrossRef] [PubMed]50. Pavan, F.A.; Lima, E.C.; Dias, S.L.P.; Mazzocato, A.C. Methylene blue biosorption from aqueous solutions by yellow passion fruit waste. J. Hazard. Mater. 2008, 150, 703–712. [CrossRef]51. Ozudogru, Y.; Merdivan, M.; Goksan, T. Removal of methylene blue from aqueous solutions by brown alga Cystoseira barbata. Desalin. Water Treat. 2017, 62, 267–272. [CrossRef]52. Húmpola, P.D.; Odetti, H.S.; Fertitta, A.E.; Vicente, J.L. Thermodynamic analysis of adsorption models of phenol in liquid phase on different activated carbons. J. Chil. Chem. Soc. 2013, 58, 1541–1544. [CrossRef]53. Yang, Z.H.; Xiong, S.; Wang, B.; Li, Q.; Yang, W.C. Cr(III) adsorption by sugarcane pulp residue and biochar. J. Cent. South Univ. 2013, 20, 1319–1325. [CrossRef]54. Kiliç, M.; Kirbiyik, Ç.; Çepeliogullar, Ö.; Pütün, A.E. Adsorption of heavy metal ions from aqueous solutions by bio-char, a ˇ by-product of pyrolysis. Appl. Surf. Sci. 2013, 283, 856–862. [CrossRef]55. Amouei, A.I.; Amooey, A.A.; Asgharzadeh, F. Cadmium Removal from Aqueous Solution by Canola Residues: Adsorption Equilibrium and Kinetics; Iranian Association of Chemical Engineers (IAChE): Tehran, Iran, 2013; Volume 10.56. Kannan, N.; Sundaram, M.M. Kinetics and mechanism of removal of methylene blue by adsorption on various carbons—A comparative study. Dye. Pigment. 2001, 51, 25–40. [CrossRef]57. Wu, Q.; Xian, Y.; He, Z.; Zhang, Q.; Wu, J.; Yang, G.; Zhang, X.; Qi, H.; Ma, J.; Xiao, Y.; et al. Adsorption characteristics of pb(ii) using biochar derived from spent mushroom substrate. Sci. Rep. 2019, 9, 1–11. [CrossRef]58. Uwamungu, J.Y.; Nartey, O.D.; Uwimpaye, F.; Dong, W.; Hu, C. Evaluating biochar impact on topramezone adsorption behavior on soil under no-tillage and rotary tillage treatments: Isotherms and kinetics. Int. J. Environ. Res. Public Health 2019, 16, 5034. [CrossRef] [PubMed]59. Nworie, F.S.; Nwabue, F.I.; Oti, W.; Mbam, E.; Nwali, B.U. Removal of methylene blue from aqueous solution using activated rice husk biochar: Adsorption isotherms, kinetics and error analysis. J. Chil. Chem. Soc. 2019, 64, 4365–4376. [CrossRef]1412213BiosorbentCyanobacterialRecalcitrant dyesAdsorptionPublicationORIGINALCyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water.pdfCyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water.pdfapplication/pdf4410495https://repositorio.cuc.edu.co/bitstreams/45a4073d-b979-4fdc-9fc5-7e09ac6a9dcf/download29b32a05daa3a8d4d3ff2f30512573c6MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-83196https://repositorio.cuc.edu.co/bitstreams/6cadb2e0-b717-45d5-b1ce-b11c123f7991/downloade30e9215131d99561d40d6b0abbe9badMD52TEXTCyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water.pdf.txtCyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water.pdf.txttext/plain40921https://repositorio.cuc.edu.co/bitstreams/258e9e72-3793-45ec-9a0a-2b6f603dfbec/downloadbf10472f4cc64ce33a4e61e70078b06dMD53THUMBNAILCyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water.pdf.jpgCyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water.pdf.jpgimage/jpeg15733https://repositorio.cuc.edu.co/bitstreams/cab8207a-892f-4996-af28-e7bf57eb9974/download7e6efd41938471d1bd8403f254e670c2MD5411323/9057oai:repositorio.cuc.edu.co:11323/90572024-09-17 10:50:23.576https://creativecommons.org/licenses/by/4.0/© 2021 by the authors. Licensee MDPI, Basel, Switzerlandopen.accesshttps://repositorio.cuc.edu.coRepositorio de la Universidad de la Costa CUCrepdigital@cuc.edu.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