Combined Electrocoagulation and Chemical Coagulation in Treating Brewery Wastewater

Swain, Kimberly; Abbassi, Bassim; Kinsley, Chris

doi:10.3390/w12030726

Cited by 24 publications

(10 citation statements)

References 23 publications

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“…Previous studies have shown that hybrid processes, such as combining EC with adsorption, can achieve removal efficiencies up to 20% higher than EC alone (Alfonso‐Muniozguren et al, 2021; Al‐Qodah et al, 2020). According to Swain et al (2020), Al‐Zghoul et al (2023), and Faraj et al (2024), these integrated processes can produce highly purified wastewater, enabling effective water reuse.…”

Section: Introductionmentioning

confidence: 99%

Leachate treatment via electrocoagulation–coal‐based powdered activated carbon process: Efficiencies, mechanisms, kinetics, and costs

Ogedey,

Oguz

2024

Water Environment Research

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This study aims to improve COD, NH3‐N, and turbidity removal from Bingöl's leachate using a single‐reactor integrated electrocoagulation (EC)–coal‐based powdered activated carbon (CBPAC) process under various experimental conditions. In the EC‐CBPAC process, three stainless‐steel cathodes and three aluminum electrodes were connected to the negative and positive terminals of the power supply, respectively. The initial concentrations in the leachate were 1044 mg O2/L for COD, 204 mg/L for NH3‐N, and 57 NTU (or 71.25‐mg (NH2)2H2SO4/L) for turbidity, respectively. After a 40‐min EC‐CBPAC process, with a CBPAC dosage of 5 g/L and pH of 5 for COD and turbidity, and 9.5 for NH3‐N, the optimum removal efficiencies for COD, NH3‐N, and turbidity were achieved at 92%, 40%, and 91%, respectively. When the EC process was applied without CBPAC under the same experimental conditions, the removal efficiencies of COD, NH3‐N, and turbidity were 87%, 28%, and 54%, respectively. Before and after the EC‐CBPAC process, the Brunauer–Emmett–Teller (BET) surface area, pore volume, and mean pore diameter of the CBPAC were found to be (888 m2/g, 0.498 cm3/g, and 22.28 Å) and (173 m2/g, 0.18 cm3/g, and 42.8 Å), respectively. The optimum pseudo‐first‐order (PFO) rate constants for COD, turbidity, and NH3‐N were determined to be 3.15 × 10−2, 4.77 × 10−2, and 8.8 × 10−3 min−1, respectively. With the current density increasing from 15 to 25 mA/cm2, energy consumption, unit energy consumption, and total cost increased from 68.7 to 122.4 kWh/m3, 6.948 to 15.226 kWh/kg COD, and 0.85 to 1.838 $/kg COD, respectively.Practitioner points EC‐CBPAC process has greater COD, NH3‐N, and turbidity removal efficiency than EC process. COD and turbidity achieved their optimum disposal efficiencies at 92% and 91%, respectively, at pH 5 The most efficient disposal efficiency for NH3‐N was observed to be 40% at pH 9.5. EC‐CBPAC process increased removal efficiencies for COD, NH3‐N, and turbidity by 20%, 19%, and 38%, respectively, compared with EC alone. The turbidity, NH3‐N, and COD disposal fitted PSO model due to high correlation values (R2 0.94–0.99).

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Section: Introductionmentioning

confidence: 99%

Leachate treatment via electrocoagulation–coal‐based powdered activated carbon process: Efficiencies, mechanisms, kinetics, and costs

Ogedey,

Oguz

2024

Water Environment Research

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“…At the light of this, to decontaminate the industrial effluents from heavy metal ions, the efforts integrate the different separation techniques such as chemical precipitation [19,20], membrane filtration [21,22], flocculation and chemical coagulation [23,24], biological treatment [25], ion exchange [26,27], photocatalytic degradation [28], advanced oxidation [29], nanofiltration [30][31][32], and adsorption [33][34][35][36][37][38]. However, the adsorption process remains the most interesting and attractive technique due to its simplicity, ease of handling, high efficiency, ability to remove a large amount of organic and inorganic pollutants, and availability [39][40][41][42].…”

Section: Introductionmentioning

confidence: 99%

New Ethylenediamine Crosslinked 2D-Cellulose Adsorbent for Nanoencapsulation Removal of Pb (II) and Cu (II) Heavy Metal Ions: Synthesis, Characterization Application, and RSM-Modeling

Jilal¹,

Barkany²,

Bahari³

et al. 2021

Cellulose Science and Derivatives

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The main objective of the present work is to elaborate on a new eco-friendly and efficient adsorbent designated for aquatic micropollutants removal. However, the synthesis of the Ethylenediamine Crosslinked 2D-Cellulose green adsorbent was carried out successfully, by partial grafting of benzyl entities onto hydroxyl groups of HEC, and crosslinking with ethylenediamine ED. Further, the new ethylenediamine crosslinked 2D-Cellulose was used as a biosorbent for nanoencapsulation removal of copper and lead heavy metal ions from aqueous solutions. The proposal chemical structures of unmodified and modified materials were confirmed using FTIR, XRD, TGA, and SEM–EDX analysis. Furthermore, many parameters of the optimization for Pb (II) and Cu (II) in terms of removal efficiency including pH, adsorbent amount, and contact time were optimized by response surface methodology with a Box–Behnken design. Based on the desirability optimization with three factors, the maximal removal was 99.52% and 97.5% for Pb(II) and Cu(II), respectively and was obtained at pH = 5.94, 22.2 mg as the optimal adsorbent amount, and 21.53 min as contact time.

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“…Basically, a wastewater can be considered high strength when the major control parameters of this wastewater are in rather high concentrations such as of COD (Chemical Oxygen Demand), ammonia, suspended solids, or heavy metals, resulting sometimes in shock loadings. Wastewaters from the food industries mostly contain highly biodegradable organics in addition to increased nutrients (nitrogen and phosphorus) content [7][8][9]. Tannery is among the oldest industries in the world.…”

Section: Introductionmentioning

confidence: 99%

“…It involves the addition of certain chemicals (coagulant agents), such as alum or ferric salts, aiming to cause interactions between the colloids and the hydrolyzed Al 3+ or Fe 3+ cations and to form neutral or slightly positively charged micro-flocs. Recently, Swain et al (2020) [8] studied the combined chemical-and electro-coagulation process, used for the treatment of high-strength brewery wastewater, demonstrating the advantages of these treatment applications in terms of cost and high nutrient removal effectiveness. In addition, the coagulation-flocculation process has received greater attention, as it has been proven to be effective for the removal of various contaminants which may include toxic organic matter, heavy metals, viruses, etc.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the coagulation-flocculation process has received greater attention, as it has been proven to be effective for the removal of various contaminants which may include toxic organic matter, heavy metals, viruses, etc. Due to the fact of its high-efficiency for the removal of contaminants, this process has been extensively applied (among other applications) for the treatment of leather industrial wastewater [14], palm oil mill effluent [15,16], food and beverage wastewater [8,9], textile wastewater [17], yeast wastewater [18], industrial wastewaters, etc. Traditionally, common inorganic metal salts, such as ferric chloride or aluminum sulfate, are widely used for industrial wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

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Application of Composite Pre-Polymerized Coagulants for the Treatment of High-Strength Industrial Wastewaters

Tolkou

Zouboulis

2020

Water

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The aim of this study was the investigation of alternative pre-polymerized coagulants for the treatment of high-strength industrial wastewaters, such as those created by tanneries, or by yeast production industries. The novel inorganic composite coagulant examined in this study (as well as variations of it) was denoted as PSiFAC1.5-10-15. The contribution of a typical polyelectrolyte to improve the effectiveness of the coagulation/flocculation (C/F) process was additionally studied, either by adding it separately (i.e., as a flocculant aid) or by co-polymerizing it within the structure of inorganic coagulant (denoted as PAPEFAC1.5-10-15). It was found that the PSiFAC1.5:10:15 coagulant, either with or without the addition of polyelectrolyte, can provide better efficiency for the C/F process than the conventional coagulants. For example, the addition of 80 mg Al/L in yeast production wastewater samples resulted in a 56% reduction of COD, 40% of turbidity, and 43% of phosphates, regarding the pre-treated anaerobically wastewater samples and reduced by an extra 22%, 14%, and 38% for the pre-treated anaerobically plus aerobically wastewater samples, respectively. The residual aluminum concentration in the treated wastewaters was found to be below the legislation limit of 200 μg Al/L. The characterization of coagulants showed the relatively higher Al13 content of 51% and 43% for the cases of PSiFAC1.5-10-15 and PAPEFAC1.5-10-15, respectively, accompanied by the high zeta-potential measurements (50.5 and 39.5 mV).

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Combined Electrocoagulation and Chemical Coagulation in Treating Brewery Wastewater

Cited by 24 publications

References 23 publications

Leachate treatment via electrocoagulation–coal‐based powdered activated carbon process: Efficiencies, mechanisms, kinetics, and costs

Leachate treatment via electrocoagulation–coal‐based powdered activated carbon process: Efficiencies, mechanisms, kinetics, and costs

New Ethylenediamine Crosslinked 2D-Cellulose Adsorbent for Nanoencapsulation Removal of Pb (II) and Cu (II) Heavy Metal Ions: Synthesis, Characterization Application, and RSM-Modeling

Application of Composite Pre-Polymerized Coagulants for the Treatment of High-Strength Industrial Wastewaters

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