Performance of different coagulants in the coagulation/flocculation process of textile wastewater

Dotto, Juliana; Fagundes‐Klen, Márcia Regina; Veit, Márcia Teresinha; Palácio, Soraya Moreno; Bergamasco, Rosângela

doi:10.1016/j.jclepro.2018.10.112

Cited by 313 publications

(97 citation statements)

References 41 publications

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“…Un estudio realizado en el año 2019 a unas muestras de agua residual obtenidas de una lavandería industrial con turbidez inicial de 66,80 UNT, demostró la eficiencia del sulfato de aluminio al alcanzar una turbidez final de 8,28 UNT con una dosis de 1000 mg/L [28]. En el año 2017 se compararon los resultados obtenidos de unas muestras de agua sintética con diferentes valores de turbidez, utilizando alumbre como agente coagulante.…”

Section: Resultados Y Discusiónunclassified

Uso de las cáscaras de papa (Solanum tuberosum L) en la clarificación del agua de la Ciénaga de Malambo

Camacho-Oviedo

Campos-Núñez

Martínez

et al. 2020

Investig. innov. ing

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Objetivo: Realizar un estudio comparativo del proceso de clarificación de un humedal natural usando dos coagulantes, sulfato de aluminio y cascara de papa (Solanum tuberosum L). Metodología: Inicialmente se recolectó el residuo agroindustrial de diferentes establecimientos de comidas rápidas y restaurantes de la ciudad de Barranquilla donde, habitualmente, es descartado. La cáscara de papa se sometió a lavado, secado y molienda. El polvo obtenido se tamizó y envasó herméticamente en un frasco de vidrio para ser utilizado como coagulante. El sulfato de aluminio se obtuvo en el comercio. Las muestras de agua se recolectaron de la ciénaga de Malambo mediante un muestreo simple. Para remover su turbidez se realizó un ensayo de jarras que simuló los procesos de coagulación, floculación y sedimentación, teniendo como referencia los parámetros establecidos en la NTC 3903 de 2010, usando cada coagulante. Resultados: El agua objeto de estudio tuvo una turbidez inicial de 59,60 UNT. La mayor remoción de este parámetro se obtuvo con una dosis de 40 mg/L de sulfato de aluminio (92,51%); mientras que el coagulante natural removió 81,32% al emplear una dosis de 10 mg/L. Conclusiones: Se determinó que las dosis de los coagulantes, sulfato de aluminio y cáscara de papa, utilizados en esta investigación influyeron sobre la turbidez del agua de la ciénaga, impulsando al estudio y aprovechamiento de la cáscara de papa como alternativa viable en el tratamiento de las aguas.

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Section: Resultados Y Discusiónunclassified

Uso de las cáscaras de papa (Solanum tuberosum L) en la clarificación del agua de la Ciénaga de Malambo

Camacho-Oviedo

Campos-Núñez

Martínez

et al. 2020

Investig. innov. ing

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“…The most common methods of the dyes removal from wastewaters include e.g., chemical precipitation, ultrafiltration [12], aerobic and anaerobic biological treatment [13], chemical coagulation/flocculation [14], advanced oxidation processes [15], electrochemical treatments [16], and reverse osmosis [17]. However, some of these processes are expensive and ineffective to treat huge range of wastewater [18].…”

Section: Adsorption As Process For Removal Of Dyesmentioning

confidence: 99%

Utilization of Spent Coffee Grounds for Removal of Hazardous Substances from Water: A Review

Blinová

Sirotiak

2019

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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Water is one of the most important substances on earth; nowadays, its pollution is one of the main environmental problems. Textile industries pose a significant environmental problem for earth. Firstly, it is due to their huge water consumption, and secondly, they produce a lot of wastewater contaminated with dyes, chemicals, suspended solids, etc. These contaminants can make water unsuitable for the desired purposes (e.g., drinking, watering, washing and showering). The one of the promising methods for the removal of dyes from the contaminated wastewater is adsorption. In this process, we can use low cost waste materials as an adsorbent. This paper presents an overview of utilization of the spent coffee grounds for the removal of dyes from wastewater.

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“…[3] In worldwide, investigations have been based on physicochemical removing methods of color from dye wastewater. [4] These methods including coagulants, [5] electrochemical, [6] oxidizing agents, [7] membrane, [8] and adsorption. [9] Some others have focused on developing methods such as advanced oxidation processes and biological.…”

Section: Introductionmentioning

confidence: 99%

Removal of Acid Blue 92 by Using Amino‐Functionalized Silica‐Pillared Clay as a New Nano‐Adsorbent: Equilibrium, Kinetic and Thermodynamic Parameters

2020

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In this study, silica-pillared clay (SPC) and functionalized samples by chitosan (SPC/CTS) and different amounts of poly diallyl dimethylammonium chloride (SPC/PDDA-10, SPC/PDDA-20, and SPC/PDDA-30) have been synthesized and have been employed as some low-cost and eco-friendly adsorbents in the adsorptive removal of Acid Blue 92 (AB 92) from contaminated waters. The structural variation of functionalized and unfunctionalized samples confirmed by different techniques such as Scanning electron microscopy (SEM), Energy Dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and N 2 adsorption-desorption analysis. The SPC/PDDA-30 was selected for further studies due to its effective adsorption. The optimum values of adsorbent dosage, dye concentration, contact time and pH were found 0.02 g, 120 mg/L, 120 min and 5.0 respectively by applying response surface methodology (RSM). The adsorption equilibrium data were satisfactorily predicted by the Langmuir model and the adsorption process best fitted with a pseudo-secondorder model. Adsorption thermodynamic analysis indicated the uptake of AB 92 on SPC/PDDA-30 was exothermic and spontaneous. The high adsorption capacity of the selected nanocomposite could maintain after five successive adsorptiondesorption cycles by using 0.5 M NaOH.[a] Prof.

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Performance of different coagulants in the coagulation/flocculation process of textile wastewater

Cited by 313 publications

References 41 publications

Uso de las cáscaras de papa (Solanum tuberosum L) en la clarificación del agua de la Ciénaga de Malambo

Uso de las cáscaras de papa (Solanum tuberosum L) en la clarificación del agua de la Ciénaga de Malambo

Utilization of Spent Coffee Grounds for Removal of Hazardous Substances from Water: A Review

Removal of Acid Blue 92 by Using Amino‐Functionalized Silica‐Pillared Clay as a New Nano‐Adsorbent: Equilibrium, Kinetic and Thermodynamic Parameters

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