Cationic Pullulan Derivatives Based Flocculants for Removal of Some Metal Oxides from Simulated Wastewater

Overview

Journal Int J Mol Sci

Publisher MDPI

Specialties Biochemistry
Chemistry
Molecular Biology

Date 2023 Mar 11

PMID 36901814

Authors

Luminita Ghimici

Maria Magdalena Nafureanu

Marieta Constantin

Affiliations

Soon will be listed here.

Abstract

Modified polysaccharides have been increasingly used as flocculants in wastewater treatment due to their non-toxicity, low price, biodegradability, etc. However, the pullulan derivatives are less used in wastewater purification processes. Therefore, this article presents some data regarding FeO and TiO particle removal from model suspensions by some pullulan derivatives with pendant quaternary ammonium salt groups, trimethylammonium propyl carbamate chloride (). The influence of the polymer ionic content, dose, and initial solution concentration as well as of the dispersion pH and composition (metal oxide content, salts, and kaolin) on the separation efficacy were considered. UV-Vis spectroscopy measurements have shown a very good removal efficacy of for the FeO particles (around 95% and more), irrespective of the polymer and suspension characteristics; a lower clarification of the TiO particles suspension (removal efficiency between 68% and 75%) was noticed. Both the zeta potential and the particle aggregates size measurements revealed the charge patch as the main mechanism which governs the metal oxide removal process. The surface morphology analysis/EDX data provided supplementary evidence regarding the separation process. A good removal efficiency (90%) of the pullulan derivatives/FeO flocs for the Bordeaux mixture particles from simulated wastewater was found.

References

You Z, Zhao C, Sun Y, Zhuang C . Application of PAFC/CPAM for the removal of ZnO nanoparticles by enhanced coagulation. Water Sci Technol. 2021; 84(2):484-498. DOI: 10.2166/wst.2021.219. View

Smith K, Fowler G, Pullket S, Graham N . Sewage sludge-based adsorbents: a review of their production, properties and use in water treatment applications. Water Res. 2009; 43(10):2569-94. DOI: 10.1016/j.watres.2009.02.038. View

Devi P, Saroha A . Utilization of sludge based adsorbents for the removal of various pollutants: A review. Sci Total Environ. 2016; 578:16-33. DOI: 10.1016/j.scitotenv.2016.10.220. View

Ghimici L, Constantin M, Nafureanu M . Grafted Pullulan Derivatives for Reducing the Content of Some Pesticides from Simulated Wastewater. Polymers (Basel). 2022; 14(13). PMC: 9269221. DOI: 10.3390/polym14132663. View

Divakaran R, Sivasankara Pillai V . Mechanism of kaolinite and titanium dioxide flocculation using chitosan--assistance by fulvic acids?. Water Res. 2004; 38(8):2135-43. DOI: 10.1016/j.watres.2003.09.015. View

Singh R, Saini G, Kennedy J . Pullulan: Microbial sources, production and applications. Carbohydr Polym. 2015; 73(4):515-31. DOI: 10.1016/j.carbpol.2008.01.003. View

Kleimann J, Gehin-Delval C, Auweter H, Borkovec M . Super-stoichiometric charge neutralization in particle-polyelectrolyte systems. Langmuir. 2005; 21(8):3688-98. DOI: 10.1021/la046911u. View

Moraes F, Antunes J, Ramirez L, Aprile P, Franck G, Chauvierre C . Synthesis of cationic quaternized pullulan derivatives for miRNA delivery. Int J Pharm. 2020; 577:119041. DOI: 10.1016/j.ijpharm.2020.119041. View

Ghimici L, Nichifor M . Separation of TiO2 particles from water and water/methanol mixtures by cationic dextran derivatives. Carbohydr Polym. 2013; 98(2):1637-43. DOI: 10.1016/j.carbpol.2013.07.085. View

10.

Salehizadeh H, Yan N, Farnood R . Recent advances in polysaccharide bio-based flocculants. Biotechnol Adv. 2017; 36(1):92-119. DOI: 10.1016/j.biotechadv.2017.10.002. View

11.

Tahir S, Rauf N . Removal of Fe(II) from the wastewater of a galvanized pipe manufacturing industry by adsorption onto bentonite clay. J Environ Manage. 2004; 73(4):285-92. DOI: 10.1016/j.jenvman.2004.06.009. View

12.

Roy M, Dutta A, Corscadden K, Havard P, Dickie L . Review of biosolids management options and co-incineration of a biosolid-derived fuel. Waste Manag. 2011; 31(11):2228-35. DOI: 10.1016/j.wasman.2011.06.008. View

13.

Cheng K, Demirci A, Catchmark J . Pullulan: biosynthesis, production, and applications. Appl Microbiol Biotechnol. 2011; 92(1):29-44. DOI: 10.1007/s00253-011-3477-y. View

14.

Gupta V, Ali I, Suhas , Saini V . Adsorption of 2,4-D and carbofuran pesticides using fertilizer and steel industry wastes. J Colloid Interface Sci. 2006; 299(2):556-63. DOI: 10.1016/j.jcis.2006.02.017. View

15.

Dionisio M, Braz L, Corvo M, Lourenco J, Grenha A, Rosa da Costa A . Charged pullulan derivatives for the development of nanocarriers by polyelectrolyte complexation. Int J Biol Macromol. 2016; 86:129-38. DOI: 10.1016/j.ijbiomac.2016.01.054. View

16.

Bolto B, Gregory J . Organic polyelectrolytes in water treatment. Water Res. 2007; 41(11):2301-24. DOI: 10.1016/j.watres.2007.03.012. View

17.

Sousa S, Jimenez-Guerrero P, Ruiz A, Ratola N, Alves A . Organochlorine pesticides removal from wastewater by pine bark adsorption after activated sludge treatment. Environ Technol. 2011; 32(5-6):673-83. DOI: 10.1080/09593330.2010.510535. View

18.

Constantin M, Asmarandei I, Harabagiu V, Ghimici L, Ascenzi P, Fundueanu G . Removal of anionic dyes from aqueous solutions by an ion-exchanger based on pullulan microspheres. Carbohydr Polym. 2012; 91(1):74-84. DOI: 10.1016/j.carbpol.2012.08.005. View