Sinú River raw water treatment by natural coagulants

Rodiño-Arguello, Johana Paola; Feria-Díaz, Jhon Jairo; Paternina–Uribe, Roberth; Marrugo‐Negrete, José

doi:10.17533/udea.redin.n76a11

Cited by 8 publications

(2 citation statements)

References 18 publications

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“…The turbidity changed from a range of 48.9-95.0 NTU (before addition, GAMB) to 1.79-2.16 NTU and for color from 75-125 PCU to 10-15 PCU. Despite the improvement, it can be observed that a value of 2.16 NTU is not only above the established MAV of 2.0 NTU, but also higher than the typical turbidity values of 1.0 NTU (or less) reached at conventional water treatment plants [36]. Furthermore, an increase of sulfate concentrations was detected (from 4.15 mg/L to 22.52 mg/L), perhaps, due to the formation of calcium sulfate (CaSO4) from the reaction of alum with the natural alkalinity [37, p.474] of the water in the Canal del Dique, which, in turn, implies that the dose of alum is not optimal.…”

Section: Resultsmentioning

confidence: 73%

Water quality in the municipalities of Sincerín and Gambote, Bolívar, Colombia (2017-2018

Duarte-Jaramillo

Mendoza-Atencio

Jaramillo-Colorado

et al. 2021

Rev.Fac.Ing.Univ.Antioquia

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This study evaluates the water quality for human consumption in the municipalities of Sincerín and Gambote. It was measured through physico-chemical (color, turbidity, conductivity, pH, dissolved oxygen, hardness, and heavy metals) and microbiological (total coliforms, Escherichia coli) parameters before and after a partial form of water treatment was used (alum and chlorine addition in Gambote and Sincerín municipalities, respectively). This investigation was done in accordance with the maximum permissible values established by the Resolution 2115 of 2007 of the Ministry of Environment, Housing, and Territorial Development of Colombia (MAVD in Spanish). Additionally, the IRCA (Water Quality Risk Index) was calculated to determine the degree of risk of disease occurrence. The results indicated concentrations higher than the recommended values for: (a) hardness (in Sincerín); (b) iron (Fe), turbidity (only before being treated), E. coli (in Gambote); and (c) mercury (Hg), and total coliforms. The water supplies of the municipalities presented unsafe IRCA. Therefore, it is expected that the results of this study could be used for proposing strategies for improving these conditions by means of the design and implementation of an adequate treatment system.

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Section: Resultsmentioning

confidence: 73%

Water quality in the municipalities of Sincerín and Gambote, Bolívar, Colombia (2017-2018

Duarte-Jaramillo

Mendoza-Atencio

Jaramillo-Colorado

et al. 2021

Rev.Fac.Ing.Univ.Antioquia

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“…According to the above expressed, the present study would allow to predict the usefulness of the bototo gum in various industries that require saline medium: in the food industry, as a stabilizer and thickener (in salad dressings and frozen foods); in pharmacy, as a suspending agent in oral liquid formulae for children and in intravenous shots and in cosmetics, as an emulsion stabilizer in lotions and protective creams, and as a foam stabilizer in liquid soaps (Nussinnovitch, 2010). They could also suggest its application in biotechnology, as a coagulant in the water potabilization process (Rodiño et al,2015) and in the synthesis of nanofibers (Colby & Rubinstein, 2009).…”

Section: Introductionmentioning

confidence: 99%

Salt effects on the dilute solution properties of bototo gum (Cochlospermum vitifolium)

Martínez

Parra

Vera

2018

IJFAAS

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<span style="line-height: 113%; font-family: 'Times New Roman',serif; font-size: 10pt; mso-fareast-font-family: 'Times New Roman'; mso-font-kerning: 14.0pt; mso-contextual-alternates: yes; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Salt effects on the dilute solution properties of bototo gum (Cochlospermum vitifolium) were investigated. There were measured the intrinsic viscosities of the polymer under study in water, in NaCl (at different concentrations) and in NaCl, CaCl2 and AlCl3, at the same ionic strength (I = 1), using an Ubbelohde viscometer at 25°C. The Huggins intersection model (R2) is more appropriate to determine the intrinsic viscosity than the Kraemer's equation. This parameter tends to reduce with the increase in the salt concentration and the cation charge. The molecules of C. vitifolium gum exudate in water (solvent Φ) tend to adopt a “random coil” conformation, of great volume and radius, which exist in two regimes: diluted and semi-diluted; in the presence of salts, the coils exist only in a diluted regime where they are separate each other. The macromolecules in water have probably an extended ellipsoid shape but in presence of salts, they change to another more compact, probably spherical, with radii and smaller volumes. The knowledge of the behavior of C. vitifolium gum molecules in dilute solutions is an important criterion for its rational use in various industries

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Effectiveness of banana peels and papaya seeds as alternative coagulants in water treatment

Razali,

Rosman,

Othman

et al. 2024

4th International Conference on Separation Technology: Separation Technology: Rising Towards Greener Future

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The use of natural coagulant as an alternative coagulant, compared to chemical coagulant are due to environmentally friendly, readily available, cost effective and easy to find in the community. Banana peels and papaya seeds are usually considered as waste which these wastes are maybe useful in improving the quality of river water. Therefore, this study aims to evaluate the effectiveness of banana peels and papaya seeds for river water turbidity removal in which Sungai Langat was used as water sample. Using a simple synthesis process, a natural coagulant derived from banana peels and papaya seeds was created in a powder form. The pH, coagulant dosage, and extraction solvent are the variables that varied in the jar test experiment and based on the decrease in turbidity, the effectiveness of natural coagulants was evaluated. The treatment of river water using banana peels coagulant was found to be most effective at pH 4 while papaya seeds at pH 12, with the optimum dose of both coagulants was 180 mg/L. Banana peel coagulant recorded the highest removal percentage of 95.76 % from the initial turbidity of 107 NTU. Meanwhile, the removal percentage of papaya seed coagulant was 94.35 % from the initial turbidity of 110 NTU. A comparison of the use of this alternative coagulant was made with aluminium sulphate (alum). Alum recorded a lower turbidity removal percentage which was 75.66 % at pH 12. The most effective solvent to synthesis banana peels and papaya seeds was sodium hydroxide (NaOH) with a concentration of 2 M. Results showed the possibility and effectiveness of using alternative coagulant in the water treatment process and both natural coagulants (i.e., banana peels and papaya seeds) can enhance the coagulation activity as a green modification approach.

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Sinú River raw water treatment by natural coagulants

Cited by 8 publications

References 18 publications

Water quality in the municipalities of Sincerín and Gambote, Bolívar, Colombia (2017-2018

Water quality in the municipalities of Sincerín and Gambote, Bolívar, Colombia (2017-2018

Salt effects on the dilute solution properties of bototo gum (Cochlospermum vitifolium)

Effectiveness of banana peels and papaya seeds as alternative coagulants in water treatment

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