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de Paiva FFG, Dos Santos LF, Tamashiro JR, Silva LHP, Teixeira SR, Galvín AP, López-Uceda A, Skowera K, Kinoshita A. Environmental assessment and durability performance of cement mortar incorporating sugarcane vinasse in replacement of water. Environ Sci Pollut Res Int 2024; 31:17690-17705. [PMID: 37338684 DOI: 10.1007/s11356-023-28073-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 05/30/2023] [Indexed: 06/21/2023]
Abstract
Sugarcane vinasse wastewater (SVW) is one of the most voluminous waste generated in the ethanol industry and usually applied in fertigation. It is characterized by presenting high COD and BOD; thus, continued disposal of vinasse results in negative environmental impacts. In this paper, we investigated the potential of SVW in replacement of water in mortar, rethinking about reuse of effluent, reduction of pollutants in the environment, and water consumption in civil construction. Mortar composites with 0, 20, 40, 60, 80, and 100% of water replaced by SVW were studied in order to determine the optimum content. Mortars with 60 to 100% of SVW result in improved workability and reduction in water demand. The mortars with 20, 40, and 60% SVW resulted in satisfactory mechanical properties, i.e., similar to the control mortar. However, XRD analysis of cement pastes showed that the SVW causes a delay in CH formation, reaching mechanical strength after 28 days. Durability tests results showed that SVW contributes to the mortar becoming more impermeable; therefore, less susceptible to weathering. This study provides an important evaluation of the potential of SVW for application in civil construction, indicating relevant results for replacement of water by liquid wastes in cementitious composites and reduction the use of natural resources.
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Affiliation(s)
- Fabio Friol Guedes de Paiva
- University of Western São Paulo-UNOESTE, PGMADRE, Rodovia Raposo Tavares km 572, Presidente Prudente, SP, 19067-175, Brazil
| | - Luis Fernando Dos Santos
- Solid Waste Characterization and Management Laboratory-SWCML, São Paulo State University-UNESP, Presidente Prudente, SP, 19060-900, Brazil
| | - Jacqueline Roberta Tamashiro
- University of Western São Paulo-UNOESTE, PGMADRE, Rodovia Raposo Tavares km 572, Presidente Prudente, SP, 19067-175, Brazil
| | - Lucas Henrique Pereira Silva
- University of Western São Paulo-UNOESTE, PGMADRE, Rodovia Raposo Tavares km 572, Presidente Prudente, SP, 19067-175, Brazil
| | - Silvio Rainho Teixeira
- Solid Waste Characterization and Management Laboratory-SWCML, São Paulo State University-UNESP, Presidente Prudente, SP, 19060-900, Brazil
| | - Adela P Galvín
- Area of Construction Engineering, Universidad de Córdoba, UCO-Ed, Leonardo da Vinci - Campus of Rabanales, 14071, Córdoba, Spain.
| | - Antonio López-Uceda
- Department of Mechanics, Universidad de Córdoba UCO-Ed, Leonardo da Vinci - Campus of Rabanales, 14071, Córdoba, Spain
| | - Karol Skowera
- Faculty of Civil Engineering and Architecture, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314, Kielce, Poland
| | - Angela Kinoshita
- University of Western São Paulo-UNOESTE, PGMADRE, Rodovia Raposo Tavares km 572, Presidente Prudente, SP, 19067-175, Brazil
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Bonete JM, Tamashiro JR, Paiva FFGD, Queiroz-Fernandes GMD, Guidelli É, Baffa O, Kinoshita A. Influence of silver nanoparticles on the tissue reaction of polyacrylic acid-based gel. Acta Cir Bras 2022; 37:e370504. [PMID: 35976341 PMCID: PMC9377206 DOI: 10.1590/acb370504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 04/20/2022] [Indexed: 11/22/2022] Open
Abstract
Purpose: To study the influence of silver nanoparticles (AgNP) on tissue reaction when incorporated into a polymeric matrix of polyacrylic acid-based (Carbopol®) gel as a proposal for a new low-cost type of biomaterial that is simple to manufacture for use as an antimicrobial and antioxidative dressing. Methods: In-vivo tests of implantation in the subcutaneous tissue of the back of rats were performed using polyethylene tubes in three situations: empty, only the gel, and gel incorporated with AgNP. Then, the tissue reaction was studied by counting inflammatory cells. Additionally, in-vitro tests of the antioxidative and antimicrobial activity of AgNP were performed. The radical 2,2 diphenyl-1 picrylhydrazyl (DPPH) was used to test the antioxidative activity of AgNP using electron spin resonance. The antimicrobial activity of AgNP was determined by minimum inhibitory concentration against the microorganisms: Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. Results: The results indicated that AgNP presents antioxidative activity and was able to inhibit the growth of the microorganisms tested. The addition of AgNP in Carbopol® did not alter the tissue inflammatory response (p>0.05, Kruskal-Wallis’s test). Conclusions: The new biomaterial is promising for future use as a dressing for its beneficial properties for regenerative processes.
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Affiliation(s)
- Jéssica Mariana Bonete
- Graduate student. Centro Universitário Sagrado Coração - Center for Health Sciences - Bauru (SP), Brazil
| | - Jacqueline Roberta Tamashiro
- PhD. Universidade do Oeste Paulista - Postgraduate Program in Environment and Regional Development - Presidente Prudente (SP), Brazil
| | - Fábio Friol Guedes de Paiva
- PhD. Universidade do Oeste Paulista - Postgraduate Program in Environment and Regional Development - Presidente Prudente (SP), Brazil
| | | | - Éder Guidelli
- PhD. Universidade de São Paulo - Faculty of Philosophy, Sciences and Letters of Ribeirão Preto - Ribeirao Preto (SP), Brazil
| | - Oswaldo Baffa
- PhD. Universidade de São Paulo - Faculty of Philosophy, Sciences and Letters of Ribeirão Preto - Ribeirao Preto (SP), Brazil
| | - Angela Kinoshita
- PhD. Universidade do Oeste Paulista - Postgraduate Program in Environment and Regional Development - Presidente Prudente (SP), Brazil
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