Application of xanthan gum as coagulant-aid for decolorization of synthetic Congo red wastewater

Sudirgo, Michael Mark; Surya, Ryan Aristo; Kristianto, Hans; Prasetyo, Susiana; Sugih, Asaf Kleopas

doi:10.1016/j.heliyon.2023.e15011

Cited by 11 publications

(3 citation statements)

References 71 publications

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“…This bridging mechanism could explain the formation of bigger flocs, as observed in Figure 5.b, which resulted in a lower sludge volume and higher removal. Similar results of polysaccharides that act as a bridge between smaller flocs have been reported previously [31][34] [40].…”

Section: The Effect Of Dye Initial Concentration On Coagulationsupporting

confidence: 88%

The Utilization of Pectin as Natural Coagulant-Aid in Congo Red Dye Removal

Haryanto,

Rumondor,

Kristianto

et al. 2023

J. Multidiscip. Appl. Nat. Sci.

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Coagulation using inorganic compounds such as aluminum sulfate is commonly used in water-wastewater treatment. However, there are some drawbacks to its utilization, such as a significant decrease in the treated water’s pH, non-biodegradable sludge, and a potential negative impact on human mental health (dementia and Alzheimer's). The use of inorganic coagulants can be minimized with the addition of natural-based coagulant-aid such as pectin. In this study, Congo red solution, a model dye substance, was coagulated by varying the pH (3–7) using alum coagulant to determine the best pH for coagulation. At the best pH, pectin was introduced at various doses (0–30 mg/L), and subsequently various dye concentrations (50–100 mg/L). The effect of pectin as coagulant-aid was compared with aluminum sulfate and pectin only; with a response of %removal and sludge volume. It was found that the Congo red dye coagulation had the best %removal at pH 6 indicating a charge neutralization mechanism. The addition of 15 mg/L pectin at an aluminum sulfate dose of 30 mg/L resulted in 97.7% dye removal with a sludge volume of 14 mL/L at a Congo red concentration of 50 mg/L. This value is higher compared to those of aluminum sulfate and pectin only which gave 75.6 and 3.19% removals, respectively. Furthermore, the addition of pectin as a natural coagulant-aid could halve the sludge volume due to the formation of denser flocs. The results show a promising potential of pectin as a natural coagulant-aid in water-wastewater treatment.

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Section: The Effect Of Dye Initial Concentration On Coagulationsupporting

confidence: 88%

The Utilization of Pectin as Natural Coagulant-Aid in Congo Red Dye Removal

Haryanto,

Rumondor,

Kristianto

et al. 2023

J. Multidiscip. Appl. Nat. Sci.

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“…Furthermore, bacterial EPSs have attracted interest for their applications, such as environmental bio-flocculants, because they are degradable and nontoxic. So, Sudirgo et al (2023) showed xanthan to be a promising alternative as a coagulant aid for synthetic Congo red wastewater decolorization. The carboxylate group in xanthan could interact with polyaluminium chloride as the main coagulant, thus assisting the formation of larger flocs and resulting in improved coagulant performance [343].…”

Section: Applications Of Bc and Xanthanmentioning

confidence: 99%

“…So, Sudirgo et al (2023) showed xanthan to be a promising alternative as a coagulant aid for synthetic Congo red wastewater decolorization. The carboxylate group in xanthan could interact with polyaluminium chloride as the main coagulant, thus assisting the formation of larger flocs and resulting in improved coagulant performance [343]. BC has many advantages when used as an adsorbent, including a large surface area, high mechanical properties, biodegradability, and high reactivity due to the presence of hydroxyl groups on the surface, which enables its chemical modification to interact with various pollutants, depending on its nature [46,329].…”

Section: Applications Of Bc and Xanthanmentioning

confidence: 99%

Production of Bacterial Exopolysaccharides: Xanthan and Bacterial Cellulose

Revin,

Liyaskina,

Parchaykina

et al. 2023

IJMS

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Recently, degradable biopolymers have become increasingly important as potential environmentally friendly biomaterials, providing a wide range of applications in various fields. Bacterial exopolysaccharides (EPSs) are biomacromolecules, which due to their unique properties have found applications in biomedicine, foodstuff, textiles, cosmetics, petroleum, pharmaceuticals, nanoelectronics, and environmental remediation. One of the important commercial polysaccharides produced on an industrial scale is xanthan. In recent years, the range of its application has expanded significantly. Bacterial cellulose (BC) is another unique EPS with a rapidly increasing range of applications. Due to the great prospects for their practical application, the development of their highly efficient production remains an important task. The present review summarizes the strategies for the cost-effective production of such important biomacromolecules as xanthan and BC and demonstrates for the first time common approaches to their efficient production and to obtaining new functional materials for a wide range of applications, including wound healing, drug delivery, tissue engineering, environmental remediation, nanoelectronics, and 3D bioprinting. In the end, we discuss present limitations of xanthan and BC production and the line of future research.

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Xanthan Gum Production and Its Modifications to Obtain Novel Applications: A Review

Onofre‐Rentería,

Cabrera‐Munguía,

Cobos‐Puc

et al. 2024

Polymers for Advanced Techs

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Biopolymers are molecules widely used in many industries because they are biodegradable and have a natural origin. Therefore, they can be obtained from renewable resources and organisms such as animals, plants, or microorganisms. Among the best‐known biopolymers, xanthan gum is an anionic biopolymer composed of glucose, mannose, glucuronic acid, pyruvic acid, and acetyl groups. It can be obtained by fermentation with bacteria of the genus Xanthomonas, has good physicochemical properties, and it is biocompatible with human cells. However, it has disadvantages as it is very susceptible to microbial contamination. Therefore, various physical, chemical, or enzymatic modification methods have been developed to improve its physicochemical and biological properties. Modifications in the backbone of the xanthan gum chains have made it possible to create xanthan gum derivatives with new uses, such as drug delivery systems and improving absorption methods in the pharmaceutical industry to enhance the efficacy of several treatments or therapeutic processes, to promote cell proliferation for tissue engineering as biomedical applications when used in systems such as hydrogels or films. They are also used in food products, in cosmetics, to recover oil from water or ground, to treat wastewater, or granting soil with good conditions to promote plant and vegetables growth. Hence, it is important to know and develop new modification methods to improve and impart new properties to obtain novel applications of xanthan gum.

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Application of xanthan gum as coagulant-aid for decolorization of synthetic Congo red wastewater

Cited by 11 publications

References 71 publications

The Utilization of Pectin as Natural Coagulant-Aid in Congo Red Dye Removal

The Utilization of Pectin as Natural Coagulant-Aid in Congo Red Dye Removal

Production of Bacterial Exopolysaccharides: Xanthan and Bacterial Cellulose

Xanthan Gum Production and Its Modifications to Obtain Novel Applications: A Review

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