Evaluation of scrap metallic waste electrode materials for the application in electrocoagulation treatment of wastewater

Bani‐Melhem, Khalid; Al-Kilani, Muhammad Rasool; Tawalbeh, Muhammad

doi:10.1016/j.chemosphere.2022.136668

Cited by 18 publications

(5 citation statements)

References 91 publications

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“…The RSM design method was used to optimize the five parameters based on the factorial technique to calculate their complex interaction for reducing the number of experiments 14,18 . The optimization encompassed three stages: (i) RSM designing, (ii) computing the model coefficients, and (iii) validating the applied model 14 . The removal efficiency of EC based on the second-order quadratic model was computed using (Eq.…”

Section: Experimental Setup By Design Programmentioning

confidence: 99%

“…Reusing these wastes is beneficial to the environment while reducing the total EC costs. However, studies on iron or aluminum wastes for EC anodes are scarce 13,14 .…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, in experimental optimization, one factor is generally varied at a time while others are fixed as constants. However, optimization cannot recognize complex relations among factors and their responses simultaneously 14 , time spent due to the large number of runs involved, along with increased use of chemical compounds. Hence, it is costly 15 .…”

Section: Introductionmentioning

confidence: 99%

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Treatment of Dairy Wastewater by Electrocoagulation using Iron Filings Electrodes

Ahmed,

Atiya,

M-Ridha

2023

Baghdad Sci.J

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This study investigated the treatment of dairy wastewater using the electrocoagulation method with iron filings as electrodes. The study dealt with real samples collected from local factory for dairy products in Baghdad. The Response Surface Methodology (RSM) was used to optimize five experimental variables at six levels for each variable, for estimating chemical oxygen demand (COD) removal efficiency. These variables were the distance between electrodes, detention time, dosage of NaCl as electrolyte, initial COD concentration, and current density. RSM was investigated the direct and complex interaction effects between parameters to estimate the optimum values. The respective optimum value was 1 cm for the distance between electrodes, (60 – 120) min for detention time, 250 mg NaCl/L added, C0/6 = 5,775 mg COD/L as initial COD concentration, and 7.884 - 8.077 mA/cm2 as current provided. At the optimum parameter values, the optimum COD removal efﬁciency was 73.4%. Meanwhile, the study also performed removal efficiency for nitrogen (N) and phosphate (P) due to their effects on the aquatic life and systems. The optimum removal efficiency for phosphorus and nitrogen was 98.0% and 80.3%, respectively. Due to its effects on the environment and to comply with local legislations, treating these wastewaters using eco-friendly processes was highly recommended taking in consideration the economic feasibility, flexibility and easiness to operate. In addition, the study proved that the high surface area for iron filings played a crucial role in removing process.

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Section: Experimental Setup By Design Programmentioning

confidence: 99%

“…Reusing these wastes is beneficial to the environment while reducing the total EC costs. However, studies on iron or aluminum wastes for EC anodes are scarce 13,14 .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Treatment of Dairy Wastewater by Electrocoagulation using Iron Filings Electrodes

Ahmed,

Atiya,

M-Ridha

2023

Baghdad Sci.J

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“…The discharge of various pollutants, including heavy metals, dyes, surfactants, pharmaceuticals, pesticides, and personal care products, from both industrial and municipal sources has led to the contamination of the world's water resources (Siyal et al, 2020). This pollution is a significant environmental concern, as it not only impacts the health of aquatic ecosystems, but also poses a risk to human health through the consumption of contaminated water or aquatic organisms (Bani-Melhem et al, 2023). Additionally, the degradation of water quality can have economic consequences, as it can limit the availability of clean water for drinking, irrigation, and industrial purposes (Harif et al, 2022a).…”

Section: Introductionmentioning

confidence: 99%

Improving the Removal of Anionic Surfactant in Cardboard Industry Wastewater by Coagulation/Flocculation: Process Optimization with Response Surface Methodology

Harif

Aboulhassan

Bammou

et al. 2023

Water Air Soil Pollut

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Response surface methodology (RSM) and Box–Behnken design (BBD) were investigated to optimize the coagulation–flocculation process (CF) of cardboard industry effluent using polyaluminum chloride (PAC) and cationic polyacrylamides (c-PAM). The aim is to identify the optimum combination of coagulant dose, pH, and flocculant dosage for the highest removal efficacy of chemical oxygen demand (COD) and anionic surfactant removal. According to the results, COD reduction was principally controlled by PAC and c-PAM, while anionic surfactant was affected by pH and PAC. In addition, COD and anionic surfactant removal models fitted well with the experimental results (R2 > 0.85). Coagulation/flocculation using optimum conditions of pH, PAC, and c-PAM led to the total removal of anionic surfactant and the reduction of more than 95% of COD.

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“…Many authors have recently considered treating wastewater by chemical, physical, and biological mechanisms to lessen its toxicity. These include biological treatments [13], electrocoagulation [14], aerobic biological treatments [15], and photocatalysis [16]. Adsorption is the most successful treatment for removing heavy metals among the available techniques since it may be handled without requiring higher temperatures, specialized techniques, or significant energy input [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Microwave-Prepared Quantum Dots and Their Potential Applications as Adsorbents and Chemosensors

Tohamy,

El-Sakhawy,

Hassan

et al. 2023

Materials

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A combination of different eco-friendly materials prepared promising fluorescent quantum dots (QDs) through the one-step process using the microwave heating of urea with cellulose, chitosan, and biochar. Characterizations of the prepared QDs, including the investigation of their structure by infrared spectroscopy, Raman analysis, X-ray diffraction, thermal gravimetric analysis, morphology, and optical properties, were performed. The results showed that QDs possess a small size, high UV absorption, and excitation wavelength-dependent fluorescence. The prepared QDs were also tested for metal ions removal from aqueous solutions. The adsorption at different contact times was investigated to optimize the adsorption efficiency of the prepared QDs. All QDs were found to be an ideal sorbent for Cr(II), Cu(II), Mn(II), and Pb(II). From the data, Cr(II) was more highly adsorbed than other metal ions. The results of the kinetic investigation showed that the pseudo-second-order kinetic model fit the adsorption process effectively. In addition, the fluorescence spectra of QDs were changed after the adsorption of metal ions; hence, the prepared QDs could be utilized in environmental sectors such as wastewater pollution detection, adsorption, and chemical sensing applications.

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Evaluation of scrap metallic waste electrode materials for the application in electrocoagulation treatment of wastewater

Cited by 18 publications

References 91 publications

Treatment of Dairy Wastewater by Electrocoagulation using Iron Filings Electrodes

Treatment of Dairy Wastewater by Electrocoagulation using Iron Filings Electrodes

Improving the Removal of Anionic Surfactant in Cardboard Industry Wastewater by Coagulation/Flocculation: Process Optimization with Response Surface Methodology

Microwave-Prepared Quantum Dots and Their Potential Applications as Adsorbents and Chemosensors

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