Flocculation of livestock wastewater using cationic starch prepared from potato peels

Haleem, Noor; Osabutey, Augustina; Albert, Karlee; Zhang, Cheng; Min, Kyungnan; Anderson, Gary L.; Yang, Xufei

doi:10.1039/d2ew00794k

Cited by 6 publications

(10 citation statements)

References 59 publications

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“…Different from the unmodified sample, the modified samples showed a peak at 1484 cm −1 . The vibration of the C-N bond in the quaternary ammonium groups can be attributed to this, indicating the successful integration of trimethyl ammonium groups [36]. Furthermore, the absorption peak observed at 839 cm −1 was attributed to the deformation of the C-H bond within the glycosidic bond that connects the glucose units [12,39].…”

Section: Ftir Spectrummentioning

confidence: 92%

“…The samples were taken after the separation process. It is noteworthy that one of our previous studies [36] collected wastewater samples from the same facility but a year before the current study. Wastewater quality parameters including TSS were therefore slightly different.…”

Section: Flocculation Removal Of Tss From Dairy Wastewatermentioning

confidence: 99%

“…For CC, the ideal dose level for flocculation is related to charge density to destabilize the particles and the molecular weight of CC polymers to promote sweep coagulation and inter-particulate bridging. Excess CC could lead to net positive charges on the solid particle surface, causing electrostatic repulsion and thereby restabilizing the suspended solids [36]. The effect of pH was also substantial (Table 2).…”

Section: Algal Harvestingmentioning

confidence: 99%

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Preparation of Cationic Cellulose as a Natural Flocculant/Sorbent and Its Application in Three Water Treatment Scenarios

Haleem

Zhang

Jamal

et al. 2023

Water

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In this study, cationic cellulose (CC) was prepared by etherifying commercial cellulose with (3-chloro-2 hydroxypropyl) trimethylammonium chloride (CHPTAC) in an alkaline medium. The prepared CC was characterized using Fourier transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and nuclear magnetic resonance (NMR). The characterization results affirmed the successful cationization of cellulose. Upon optimization of reaction conditions, a CC sample with a degree of substitution (DS) of 0.857 was achieved. The CC sample was then tested as a flocculant or sorbent in three environmental applications: algal harvesting, solid removal from dairy wastewater, and capture of methyl orange (MO) in dye wastewater. The effects of dose level and pH on flocculation/sorption performance were studied. Under the optimal dose level and pH conditions, up to 90.4% of dry algal biomass and 53.3% of suspended solids in the dairy wastewater were removed, as measured by standard jar testing. Around 64.2% of MO in the synthetic wastewater was sorbed on the prepared CC and removed, as determined by absorbance at 463 nm. The new CC preparation method exempts the pre-dissolution of cellulose in a solvent and is expected to promote the application of CC in water treatment and the alike scenarios.

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Section: Ftir Spectrummentioning

confidence: 92%

Section: Flocculation Removal Of Tss From Dairy Wastewatermentioning

confidence: 99%

Section: Algal Harvestingmentioning

confidence: 99%

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Preparation of Cationic Cellulose as a Natural Flocculant/Sorbent and Its Application in Three Water Treatment Scenarios

Haleem

Zhang

Jamal

et al. 2023

Water

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“…De acuerdo con la tabla 3 y figura 1, no hubo diferencias significativas en los valores de STD entre los diferentes tratamientos (p = 0.767), lo que indica que la adición de almidón no afectó la cantidad de sólidos disueltos en el agua. Esto se alinea con la literatura, que muestra que los almidones, al ser biopolímeros, no contribuyen a aumentar la concentración de sólidos disueltos [20] Los sólidos totales disueltos (STD) en este estudio tuvieron un ligero aumento luego de la administración de los floculantes orgánicos. A partir de lo anterior, [8] comparte esta característica debido a que en su investigación de coagulaciónfloculación empleando el almidón de la cáscara de papa la concentración de STD también aumenta.…”

Section: Influencia En La Conductividad Potencial Redox Y Sólidos Tot...unclassified

Evaluación De Almidones Como Floculantes Para La Remoción De Turbiedad en Agua Superficial

Cerna Cueva,

Vega-Sanchez,

Cordova-Ayra

et al. 2024

TEC

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La presente investigación tuvo como objetivo evaluar el poder floculante de 3 tipos de almidones, de papa blanca y amarilla (Solanum tuberosum) y pituca (Colocasia esculenta) para remover turbiedad en agua superficial. Para ello, el almidón se extrajo triturando las papas con una proporción de agua/masa de 1:4 y la pituca con una proporción de 1:1, luego se sedimentó y secó a 45 °C durante 24 horas. Se preparó el floculante disolviendo 10 gramos de almidón en 250 ml de agua caliente a 60 °C y posteriormente se hirvió. La evaluación del floculante implicó la coagulación con sulfato de aluminio del agua superficial, ajustando el pH a 9 y luego se dosificó coagulante hasta bajar el pH a 6.9. Se evaluó el poder floculante de los almidones a dosis de 0.3 ml y 0.5 ml por cada litro de agua a tratar. Los parámetros fisicoquímicos evaluados, se midieron antes y después de la adición de los floculantes de almidón. Los almidones de papa amarilla, papa blanca y pituca mejoraron significativamente la eficiencia de remoción de turbiedad en el tratamiento de agua, superando el 95%. Sin embargo, la demanda bioquímica de oxígeno (DBO) aumentó, indicando una mayor carga orgánica. La generación de lodos también aumentó con la adición de floculantes orgánicos. Aumentar la dosis de almidón más allá de 0.3 ml no mejoró la remoción de turbidez, sugiriendo que esa dosis es una "dosis óptima" para maximizar la eficiencia de la reducción de la turbidez.

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“…The amount of starch accounts for up to 52% of total carbohydrate content. PPW also has a considerable amount of dietary fibre, which can regulate intestinal health by lowering the cholesterol effect [8,[12][13][14][15]. Vázquez et al [16] have recently documented the promising potential of utilizing waste materials, specifically Garnacha Tintorera bagasse and potato residues, as sustainable substrates for the co-production of valuable bioproducts, such as bacterial cellulose and gluconic acid.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Alkali Treatment for Production of Fermentable Sugars and Phenolic Compounds from Potato Peel Waste Using Topographical Characterization and FTIR Spectroscopy

Mushtaq,

Joly,

Martin

et al. 2023

Molecules

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Potato peel waste (PPW) was utilized as a bio-template for the production of valuable compounds such as reducing sugars (RS), total sugar (TS) and total phenolic compounds (TPC). Two methods of alkali treatments, i.e., chemical (NaOH) and thermochemical (NaOH assisted with autoclaving) processes, were employed for the deconstruction of PPW. Response surface methodology (RSM) was used to study the effects of alkali concentration (0.6–1.0 w/v), substrate concentration (5–15 g) and time (4–8 h) on the extraction of RS, TS and TP from PPW. The application of alkali plus steam treatment in Box-Behnken design (BBD) with three levels yielded the optimum releases of RS, TS and TP as 7.163, 28.971 and 4.064 mg/mL, respectively, corresponding to 10% substrate loading, in 0.6% NaOH for 8 h. However, the alkali treatment reported optimum extractions of RS, TS and TP as 4.061, 17.432 and 2.993 mg/mL, respectively. The thermochemical pretreatment was proven a beneficial process as it led to higher productions of TP. FTIR and SEM were used to analyze the deterioration levels of the substrate. The present work was used to explore the sustainable management of PPW, which is a highly neglected substrate bioresource but is excessively dumped in open environment, raising environmental concerns. The cost-effective methods for the breakdown of PPW starch into fermentable sugars might be utilized to extract valuable compounds.

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Flocculation of livestock wastewater using cationic starch prepared from potato peels

Abstract: A cationic starch flocculant was prepared from potato peel waste (PPW) for enhanced solid-liquid separation of livestock wastewater, thereby promoting the agricultural circular economy. The starch extracted from PPW was...

Cited by 6 publications

References 59 publications

Preparation of Cationic Cellulose as a Natural Flocculant/Sorbent and Its Application in Three Water Treatment Scenarios

Preparation of Cationic Cellulose as a Natural Flocculant/Sorbent and Its Application in Three Water Treatment Scenarios

Evaluación De Almidones Como Floculantes Para La Remoción De Turbiedad en Agua Superficial

Optimization of Alkali Treatment for Production of Fermentable Sugars and Phenolic Compounds from Potato Peel Waste Using Topographical Characterization and FTIR Spectroscopy

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