Influence of current density and electrodes spacing on reactive red 120 dye removal from dyed water using electrocoagulation/electroflotation (EC/EF) process

Abdulhadi, Bareq; Kot, Patryk; Hashim, Khalid; Shaw, Andy; Khaddar, Rafid Al

doi:10.1088/1757-899x/584/1/012035

Cited by 39 publications

(20 citation statements)

References 20 publications

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“…It determines the quantity of the coagulant dissolved in the solution, the size of the flocs formed and hydrogen bubble production rates. Higher current density leads to generate more coagulant agents 48,49 ; more H2 bubble is generated, thereby increasing the formation of metal hydroxide and treatment efficiency 40,50 . (Fig.6) represents the effect of current density for MB removal using 0.1 M NaCl with 1.5 cm interelectrode spacing for different electrolysis times.…”

Section: Effect Of Current Density On Removal Efficiencymentioning

confidence: 99%

Batch elimination of cationic dye from aqueous solution by electrocoagulation process

et al. 2020

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Like other developing countries, Morocco has undergone a real industrial revolution that generates a huge amount of colored wastewater. Methylene blue (MB) could be considered as commonly model of cationic dyes that are widely used in industries. In the present work, the removal of MB was investigated in the presence of NaCl as electrolyte by electrocoagulation (EC) process. Parameters studied are the nature of electrodes, electrode spacing, initial dye concentration, agitation speed, applied current density, NaCl concentration, and the effect of the initial pH. Stainless steel electrodes have been used as cathode and anode in the electrochemical cell. The performance of the process was evaluated in terms of color removal, chemical oxygen demand (COD), total organic carbon (TOC), electrical power consumption, current efficiency, and the quantity of sludge formed. The results showed that the removal percent of 20 mg/L MB is 100 %, using stainless steel electrodes with an interspace of 1.5 cm and 20 mA/cm² for 6 min in the presence of 0.1 M NaCl at natural pH. COD and TOC removals within 15 min were 45% and 51% respectively. The power consumption, in that case, was 5.84 KWh/m3, while the amount of sludge formed was 1.64 Kg/m3.

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Section: Effect Of Current Density On Removal Efficiencymentioning

confidence: 99%

Batch elimination of cationic dye from aqueous solution by electrocoagulation process

et al. 2020

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“…A wide scope of existing test information from water-powered bounces on smooth and folded beds was similarly utilized; the vitality dissemination of a water-powered bounce on a layered bed was found to be affected by level good ways from the floodgate door area to the beginning of the ridged bed. These baffle blocks could be used, for example, to enhance water treatment unit performance (Abdulhadi, Kot, Hashim, Shaw & Khaddar, 2019;Hashim et al, 2019;Hashim, Ali, Al Rifaie et al, 2020;Hashim, Kot, Zubaidi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Laboratory study of stilling basin using trapezoidal bed elements

Alfatlawi

Al-Mansori

Othman

2020

srees

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When designing dam spillway structures, the most significant consideration is the energy dissipation arrangements. Different varieties of baffle blocks and stilling basins have been used in this context. However, the hydraulic jump form of stilling basin is considered to be the most suitable. The main objective of this research was to introduce four different baffle block shapes (models arranged from A to D, installed at slopes 0.00, 0.04, 0.06 and 0.08 in the stilling basins). To illustrate the consequences for the qualities of pressure-driven bounce, each model was attempted in the bowl. The trials applied Froude numbers between 6.5 and 9.2. The puzzle square model D provided the best outcomes compared to the models A, B, C and smooth. Model D with different models at inclines 0.00, 0.04, 0.06 and 0.08 was used to consider the impacts of perplex hinders on water driven-bounce when bed slants were changed. When the model D baffle used instead of a smooth bed at 0.08 slope, the reduction in y2 / y1 reached 12.8%, and Lj / y1 was 18.9%. Among the different bed slopes, a normal decrease in y2 / y1 ranged from approximately 10.3%, whereas the normal decrease in Lj / y1 was about 13.8% when the model D baffle was used instead of the model A baffle with a horizontal slope bed of 0.00. The results show that the new shapes led to a decrease in sequent profundity proportion and length of jump proportion; however, the energy dissipation proportion increased.

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“…This similarity, as shown in Table 4, suggests that RSM can be suitably used for optimization. In any electrochemical process, current applied is the most significant parameter [25]. The supplied current determines the dissipation of metal ions at the anode; thus, the EC process gets considerably affected [26].…”

Section: Optimization Of the Processmentioning

confidence: 99%

Energy Efficient Rapid Removal of Arsenic in an Electrocoagulation Reactor with Hybrid Fe/Al Electrodes: Process Optimization Using CCD and Kinetic Modeling

Khan

Farooqi

Usman

et al. 2020

Water

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Threats due to insufficient, inadequate and costlier methods of treating contaminants such as arsenic have emphasized the significance of optimizing and managing the processes adopted. This study was aimed at the complete elimination of arsenic from an aqueous medium with minimum energy consumption using the electrocoagulation process. Arsenic removal around 95% was rapidly attained for optimized conditions having a pH of 7, 0.46 A current intensity, 10 mg/L initial concentration and only 2 min of applied time duration using the energy of 3.1 watt-hour per gram of arsenic removed. Low values of applied current for longer durations resulted in the complete removal of arsenic with low energy consumption. Various hydroxide complexes including ferrous hydroxide and ferric hydroxide assisted in the removal of arsenic by adsorption along with co-precipitation. Surface models obtained were checked and found with a reasonably good fit having high values of coefficient of determination of 0.933 and 0.980 for removal efficiency and energy consumption, respectively. Adsorption was found to follow pseudo-first-order kinetics. Multivariate optimization proved it as a low-cost effective technology having an operational cost of 0.0974 Indian rupees (equivalent to USD 0.0013) per gram removal of arsenic. Overall, the process was well optimized using CCD based on response surface methodology.

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Influence of current density and electrodes spacing on reactive red 120 dye removal from dyed water using electrocoagulation/electroflotation (EC/EF) process

Cited by 39 publications

References 20 publications

Batch elimination of cationic dye from aqueous solution by electrocoagulation process

Batch elimination of cationic dye from aqueous solution by electrocoagulation process

Laboratory study of stilling basin using trapezoidal bed elements

Energy Efficient Rapid Removal of Arsenic in an Electrocoagulation Reactor with Hybrid Fe/Al Electrodes: Process Optimization Using CCD and Kinetic Modeling

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