The Effect of Operational Variables on the Performance of Electrochemical Water Treatment for Drinking Purposes

Ditta, Allah; Ullah, Khalid Saif; Farhat, Iqra; Zehra, Ufaq; Ayoub, Hanan; Ahtisham, Muhammad; Imtiaz, Hamza; Tabish, Asif Nadeem

doi:10.1109/icece51984.2021.9406297

Cited by 2 publications

(2 citation statements)

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“…The first set of experiments aimed to determine the appropriate coagulant dosage, pH, and conditions of mixing and settling to obtain residual turbidity of less than 5 NTU. The pH of the water sample was adjusted by using NaOH and H 2 SO 4 [32,33]. The optimum coagulant dosage and pH value were tested in the jar experiment.…”

Section: Pretreatment Experimentsmentioning

confidence: 99%

“…The experimental domain of current density, treatment time, and interelectrode spacing was previously determined during the preliminary experiments [33]. To further investigate the effect of these parameters on the treatment performance and determine optimum conditions, Box-Behnken design (BBD) methodology was followed, suggesting 17 experi-ments with five replicas, as given in Table 2.…”

Section: Optimization Of Designed Parameters Through Rsmmentioning

confidence: 99%

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The Optimization of Operational Variables of Electrochemical Water Disinfection Using Response Surface Methodology

et al. 2023

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The electrochemical treatment of canal water was investigated in a batch-wise system in the presence of stainless steel 316-grade electrodes. Three effective process parameters, including current density, reaction time, and electrode spacing, were evaluated in the range of 0.25–2.5 mA/cm2, 1–10 min, and 0.5–2.5 cm, respectively. Operational variables of electrochemical disinfection are optimized in response surface methodology (RSM) using Box–Behnken design. Before electrochemical disinfection, a pretreatment process of coagulants mixing for turbidity removal was conducted. Results revealed that a 10 ppm dosage of Ferric chloride (FeCl3.6H2O) and alum (Al2(SO4)3·16H2O) at neutral pH is appropriate. Furthermore, the RSM analysis shows that interelectrode spacing is the most prominent factor affecting the disinfection performance, and increasing electrode spacing inversely affects the disinfection efficiency. Results revealed that 1.52 mA/cm2 current density, 6.35 min reaction time, and 1.13 cm of electrode spacing are the optimum conditions, resulting in a statistically 98.08% disinfection of the total coliform. The energy required for electrochemically disinfection of water at optimum conditions was 0.256 kWh/m3.

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Section: Pretreatment Experimentsmentioning

confidence: 99%

Section: Optimization Of Designed Parameters Through Rsmmentioning

confidence: 99%