Comparison of Four Plant-Based Bio-Coagulants Performances against Alum and Ferric Chloride in the Turbidity Improvement of Bentonite Synthetic Water

Water, Год журнала: 2022, Номер 14(20), С. 3324 - 3324

Опубликована: Окт. 20, 2022

Due to their cost-effectiveness, low toxicity, and naturally renewable properties, bio-coagulants for water treatment are gaining popularity. In this context, four were tested ability in turbidity reduction a synthetic bentonite suspension: Opuntia ficus indica (OFI) Moringa oleifera (MO) seeds, two well-established vegetal materials the domain of bio-coagulation, Algerian Aloe vera (AV) Pinus halepensis seeds (PHS), both which have received very few or no study wastewater. A comparative was conducted with regard well-known inorganic coagulants, ferric chloride Alum. Extraction salts, pH, coagulant dose, initial turbidity, aging effects examined. When compared chemical worked well, removing approximately 100% at natural pH 7.5 using optimal doses 1.5, 3, 3.5, 1.5 mL/200 mL AV, OFI, MO, PHS, Alum, FeCl3, respectively, broad range (2 8), causing alteration treated water. Polysaccharides proteins involved inter-particle bridging charge neutralization may be active coagulation-flocculation molecules. The produced less sludge amount than Alum Ferric chloride. This research not only shows that MO OFI effective eliminating but it also highlights great potential AV PHS as promising polluted

Язык: Английский

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Assessing the effect of multiple variables on the production of bioflocculant by Serratia marcescens: Flocculating activity, kinetics, toxicity, and flocculation mechanism

The Science of The Total Environment, Год журнала: 2022, Номер 836, С. 155564 - 155564

Опубликована: Апрель 30, 2022

Язык: Английский

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Effectiveness of using water-extracted Leucaena leucocephala seeds as a coagulant for turbid water treatment: effects of dosage, pH, mixing speed, mixing time, and settling time

Biomass Conversion and Biorefinery, Год журнала: 2022, Номер 14(10), С. 11203 - 11216

Опубликована: Авг. 26, 2022

Язык: Английский

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Unraveling the Potential of Microbial Flocculants: Preparation, Performance, and Applications in Wastewater Treatment

Water, Год журнала: 2024, Номер 16(14), С. 1995 - 1995

Опубликована: Июль 14, 2024

Microbial flocculants (MBFs), a class of eco-friendly and biodegradable biopolymers produced by various microorganisms, have gained increasing attention as promising alternatives to conventional chemical in wastewater treatment pollutant removal. This review presents comprehensive overview the current state MBF research, encompassing their diverse sources (bacteria, fungi, algae), major categories (polysaccharides, proteins, glycoproteins), production processes, flocculation performance mechanisms. The wide-ranging applications MBFs removing suspended solids, heavy metals, dyes, other pollutants from industrial municipal are critically examined, highlighting superior efficiency, selectivity, environmental compatibility compared traditional flocculants. Nonetheless, bioflocculants face significant challenges including high substrate costs, low yields, intricate purification methodologies, factors that impede scalability. Moreover, risk microbial contamination attendant health implications associated with use (MBFs) necessitate thorough evaluation. To address costs variable product quality, strategies such waste valorization, strain improvement, process optimization, biosafety evaluation discussed. development multifunctional MBF-based synergistic technologies identified emerging trends for enhanced resource recovery. Future research directions outlined, emphasizing need in-depth mechanistic studies, advanced characterization techniques, pilot-scale demonstrations accelerate adoption MBF, moreover, integration novel partial nitrification anammox process. is intended inspire guide further efforts aimed at unlocking full potential sustainable, high-performance, cost-effective addressing escalating management conservation.

Язык: Английский

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Dosage-based application versus ratio-based approach for metal- and plant-based coagulants in wastewater treatment: Merits, limitations, and applicability

Journal of Cleaner Production, Год журнала: 2021, Номер 334, С. 130245 - 130245

Опубликована: Дек. 23, 2021

Язык: Английский

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Coagulation-flocculation treatment for batik effluent as a baseline study for the upcoming application of green coagulants/flocculants towards sustainable batik industry

Heliyon, Год журнала: 2023, Номер 9(6), С. e17284 - e17284

Опубликована: Июнь 1, 2023

The batik industry has been one of the main family businesses in most east-coast region Malaysian peninsula for many years. However, appropriate water treatment is still a major challenge this industry. Stringent laws introduced by authorities and intention to protect environment are factors that drive researchers search suitable, appropriate, affordable efficient wastewater. Treatment research on wastewater lacking coagulation-flocculation using alum was chosen as stepping stone toward selection green coagulants. This study aimed determine best conditions flocculation-coagulation standard jar test method. Four were investigated: dosage (0.1-3.5 g/L), pH (4-11), settling time (0.5-24 h) rapid mixing rate (100-300 rpm). Results obtained further analysed statistically SPSS software prior determining significant effect variable changes. From study, process found be at 1.5 g/L, 8, 4 h 100 rpm. Chemical oxygen demand (COD), turbidity, colour total suspended solids (TSS) removed 70.7, 92.2, 88.4 100%, respectively, under these conditions. showed can treated chemical means alum. indicates need forthcoming developments natural-based-coagulant-flocculants sustainability

Язык: Английский

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Lead (Pb) removal from contaminated water using constructed wetland planted with Scirpus grossus: Optimization using response surface methodology (RSM) and assessment of rhizobacterial addition

Chemosphere, Год журнала: 2021, Номер 291, С. 132952 - 132952

Опубликована: Ноя. 16, 2021

Язык: Английский

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Current approaches toward the removal of methylene blue dye from synthetic textile effluent using bacterial treated agricultural waste absorbent through statistical design

Heliyon, Год журнала: 2023, Номер 9(9), С. e19857 - e19857

Опубликована: Сен. 1, 2023

Massive amounts of wastewater are produced by the textile industry, and this waste needs to be appropriately managed. Agricultural wheat straw (WS), a biosorbent that is both economically available environmentally acceptable, was used in work treat effluent. Microbial treated modification approaches were utilized for WS study dye removal from wastewater. Total 15 different isolates screened degradation ability Surat industrial The most significant deterioration seen PPSUHB3 when compared other isolates. amount methylene blue examined using isolate due its high efficiency. Based on 16s rDNA sequencing, it predicted Bacillus licheniformis, having great capacity degrade & producing efficient enzyme. showed highest decolorization % MB during optimization with absorbent which verified FTIR SEM. process parameters statistically optimized central composite design (CCD). Wheat particle sizes 180-250 mm discovered possible adsorbent colour. maximum (55.89%) obtained statistical experimental at pH 6.36, Temperature 44.6 °C, Bacteria Concentration 3.04%. created model highly significant, according ANOVA, found an R2 value 0.9812 it. validation experiment revealed projected results strikingly similar. bacterial as may remove contains colours low cost.

Язык: Английский

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Chitosan coagulant: coagulation/flocculation studies on turbidity removal from aquaculture wastewater by response surface methodology

International Journal of Environmental Science and Technology, Год журнала: 2023, Номер 21(1), С. 805 - 816

Опубликована: Май 22, 2023

Язык: Английский

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Performance and characterization of snail adhesive mucus as a bioflocculant against toxic Microcystis

Ecotoxicology and Environmental Safety, Год журнала: 2024, Номер 270, С. 115921 - 115921

Опубликована: Янв. 1, 2024

Toxic Microcystis blooms are widespread in aquatic bodies, posing major threats to and human life. Recently, bioflocculants have attracted considerable attention as a promising biomaterial for management. In search of novel organism that can produce an efficient bioflocculant controlling harmful algae sustainably, the native gastropod Cipangopaludina chinensis was co-cultured continuously with toxic under different initial algal cell densities. The bioflocculation effect snail mucus on Microcystis, microcystin removal, toxin accumulation snails investigated. addition, properties adhesive were characterized using microscopic, X-ray diffraction, infrared spectroscopy, polysaccharide proteome analyses. cells captured flocculated by mucus; removal efficiencies up 89.9% 84.8% achieved microalgae microcystin-leucine arginine (MC-LR), respectively, when C. only one day. After nine-day exposure, less than 5.49 µg/kg DW microcystins accumulated snails, indicating safety consumption. contained 104.3 µg/mg protein 72.7 carbohydrate, which provide several functional groups beneficial bioflocculation. main monosaccharide subunits polysaccharides galactose, galactosamine, glucosamine, fucose, glucose, mannose. Most them key components many bioflocculants. Gene Ontology analysis indicated enrichment binding processes catalytic activity, may account via or enzymatic reactions. findings indicate secretes act from ambient water be effective eco-friendly tool suppression.

Язык: Английский

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