Coagulantes naturales en sistemas de flujo continuo, como sustituto del Al2(SO4)3 para clarificación de aguas

Molina, Natalia Fuentes; Rodríguez, Emiro José Molina; Ariza, Carla Patricia

doi:10.22507/pml.v11n2a4

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…De esta manera se determinó que coagulantes naturales como las Cactáceas presentan un alto porcentaje de remoción de sólidos, siendo la especie Echinopsis pachanoi una de las más efectivas dado que presenta resultados mayores al 99% [22]. Además, en otra investigación, al momento de utilizar semillas de moringa de La Yarada, Los Palos, lograron una eficiente remoción de turbidez como consecuencia de la eliminación de las partículas en suspensión contenidas en el agua del río Sama, donde se obtuvo niveles de reducción de la turbidez de 97.04 %; 92.37 % y 98.88% [17].…”

Section: Discussionunclassified

“…60, 80 y 100 mg/L UNT 98.69 % -Sin necesitar tratamiento, el cactus logra las mejores remociones de turbiedad con una dosis óptima de 100 mg/L. [17] Prueba de jarras con mucílago de tuna utilizando agitador de paleta a 100 rpm y muestra de agua turbia residual de 1 L en vasos de precipitados. 160 mg/L UNT 94.76 % Tras la agitación, las partículas inmersas en el agua se desestabilizan y se facilita el choque lento de partículas para la coagulación y floculación de macropartículas.…”

Section: Análisis Global De Los Estudios (Respondiendo Al Objetivo De...unclassified

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Comparison of flocculants and natural coagulants for wastewater remediation in South America in the last 10 years: a review of the scientific literature

Salvador Hidalgo,

Moreau Crispín,

Velásquez Marin

2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

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Wastewater pollution has been causing great concern throughout the world in recent decades since it seriously affects flora and fauna and transmits diseases such as typhoid fever, dysentery, cholera, among others. Therefore, in the present systematic review, natural flocculants and coagulants for the remediation of wastewater in South America were identified and compared, according to research journals published in scientific databases, in the last ten years. Information from scientific articles and academic theses belonging to the SciElo, Redalyc and Google Scholar databases was used considering the period 2012 -2022 and the Spanish, English and Portuguese languages. 60 articles were identified, of which 10 that did not meet the research objective were discarded, reaching a total of 40 articles and 10 selected theses. A greater number of studies from Colombia was found, followed by Peru and Ecuador. One of the main limitations was the lack of command of the Portuguese language, since 4 articles written in that language were identified. Likewise, being South America the study area, limited articles related to flocculation and natural coagulation were found, of which 50 were selected for the present systematic review. As a result, the most effective species for the remediation of wastewater were identified. It is concluded that the most outstanding species Moringa oleifera "Moringa" and Opuntia ficus-indica "Tuna" present an efficacy for the remediation of wastewater inSouth America as flocculants and coagulants obtaining contaminant removal yields of up to 99.29% for turbidity and 99.96% for total coliforms.

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Section: Discussionunclassified

Section: Análisis Global De Los Estudios (Respondiendo Al Objetivo De...unclassified

Comparison of flocculants and natural coagulants for wastewater remediation in South America in the last 10 years: a review of the scientific literature

Salvador Hidalgo,

Moreau Crispín,

Velásquez Marin

2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

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“…However, little has been studied about the effects of structures of polymeric flocculants that impact process performance due to the high size of chains (Wu et al, 2016). Thus, several natural polyelectrolytes have been exploited as coagulants or flocculants in the treatment of water and wastewater, such as rice bagasse (Guo & Chen, 2017), Tamarindus indica (Mishra & Bajpai, 2006), Moringa oleifera (Rodiño-Arguello et al, 2015), Manihot esculenta (dos Santos et al, 2018), Malva sylvestris (Anastasakis et al, 2009), Cactus opuntia (Fuentes-Molina et al, 2016), guar gum, tannins, sodium alginate and pectin are among the natural sources that have been examined, starch being one of the most studied (Oladoja, 2015).…”

Section: Introductionmentioning

confidence: 99%

Comparative study of the use of starch from agroindustrial materials in the coagulation-floculation process

Villabona-Ortíz¹,

Tejada-Tovar²,

Ortega-Toro³

2019

Rev.Mex.Ing.Quim.

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“…Esse desafio se intensifica em países em ascensão, regiões naturalmente áridas e polos agroindustriais emergentes, onde a demanda por água é fundamental para a produtividade e desenvolvimento econômico. 1 Com raras exceções, mananciais destinados ao abastecimento público que não recebam nenhum tipo de efluente (industrial, doméstico ou chorume) praticamente não existem mais. A diminuição da qualidade das águas naturais é reflexo das diversas atividades antropogênicas da era contemporânea.…”

Section: Introductionunclassified

Natural Products Used as Coagulants and Flocculants for Public Water Supply: A Review of Benefits and Potentialities

Júnior¹,

Abreu²

2018

Rev. Virtual Quim.

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Abstract:The development of new coagulants and flocculants, based on nature-abundant biodegradable natural raw materials, has been gaining more space in research centers as an environmental technology that follows the concept of eco friendly materials and the principles of green chemistry proposed in the 1990s. When well exploited, these multifunctional agents can reduce the operational cost of water treatment and expand access to this resource. In view of the promising prospects for the use of natural products as sources of biocomposites, this review aims to compile the several studies developed in recent years that report on the obtaining and efficiency of natural materials such as coagulants and flocculants of water for supply, with emphasis on the chitosan, Moringa oleifera seeds and vegetable tannins. In parallel, it is also intended to expose the limitations and harms of traditional coagulants based on inorganic salts and synthetic polymers, as well as their mechanisms of action, in contrast to the main physico-chemical parameters used in the quality control of natural and treated waters.Keywords: Natural products; Green chemistry; Natural coagulants; Water treatment. ResumoO desenvolvimento de novos coagulantes e floculantes, baseados em matérias-primas naturais biodegradáveis abundantes na natureza, vem ganhando cada vez mais espaço nos centros de pesquisa como uma tecnologia ambiental que segue o conceito de materiais eco friendly e os princípios da química verde propostos na década de 90. Quando bem explorados, esses agentes multifuncionais podem permitir a redução do custo operacional do tratamento de água e expandir o acesso a esse recurso. Em face as perspectivas promissoras do uso de produtos naturais como fontes de biocompostos, esta revisão tem como objetivos compilar os diversos estudos desenvolvidos nos últimos anos que relatam a obtenção e eficiência de materiais naturais como agentes coagulantes e floculantes de águas para abastecimento, com ênfase na quitosana, sementes da espécie Moringa oleífera e taninos vegetais. Em paralelo, pretende-se também expor as limitações e malefícios dos coagulantes tradicionais a base de sais inorgânicos e polímeros sintéticos, bem como seus mecanismos de atuação, contrastando com os principais parâmetros físico-químicos utilizados no controle de qualidade de águas naturais e tratadas.Palavras-chave: Produtos Naturais; Química verde; Coagulantes naturais; Tratamento de águas.

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Coagulantes naturales en sistemas de flujo continuo, como sustituto del Al2(SO4)3 para clarificación de aguas

Abstract: Natural coagulants in continuous flow systems as a substitute of Al 2 (SO 4) 3 for water clarification Coagulantes naturais em sistemas de fluxo contínuo, como substituto do Al 2 (SO 4) 3 para clarificação de águas

Cited by 6 publications

References 13 publications

Comparison of flocculants and natural coagulants for wastewater remediation in South America in the last 10 years: a review of the scientific literature

Comparison of flocculants and natural coagulants for wastewater remediation in South America in the last 10 years: a review of the scientific literature

Comparative study of the use of starch from agroindustrial materials in the coagulation-floculation process

Natural Products Used as Coagulants and Flocculants for Public Water Supply: A Review of Benefits and Potentialities

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