Operating parameters and costs assessments of a real dyehouse wastewater effluent treated by a continuous electrocoagulation process

Kobya, Mehmet; Gengeç, Erhan; Demirbaş, E.

doi:10.1016/j.cep.2015.11.012

Cited by 167 publications

(42 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For example, at I = 4, 6, 8, and 10 A, the pH was 4.8, 2.3, 2.2, and 1, respectively. Gu et al suggest that (4) and (5) for the oxidation of water will decrease solution pH [30] and this was observed in this work, so, the super-faradaic efficiencies are greater for aluminum than those for iron [29].…”

Section: Resultssupporting

confidence: 68%

“…The problem of industrial wastewater is a topic that deserves special attention, particularly for industries that use dyes and thus generate large volumes of polluted wastewater. Due to their high molecular weights, complex structures, and especially high solubility in water, dyes persist once discharged into a natural environment, for example, textile [1,2], pharmaceutical [3], cosmetics and food industry [4], and industrial wastewater [5]. Specifically for the textile industry, the chemical structure of these compounds is complex, generally of the type azo [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Photovoltaic Energy-Assisted Electrocoagulation of a Synthetic Textile Effluent

Pavón-Silva

Romero-Tehuitzil

Río

et al. 2018

International Journal of Photoenergy

View full text Add to dashboard Cite

The feasibility of using photovoltaic modules to power a continuous 14 L electrochemical reactor applied to remove an azo dye with an efficiency of 70% is reported. The photovoltaic modules were directly connected, and the system efficiency was observed properly maintained when currents were applied in the range of 2.5 to 7.9 A. This value depends on solar radiation. Likewise, it was found that the efficiency depends mainly on the current density and the flow rate prevailing in the reactor.

show abstract

Section: Resultssupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Photovoltaic Energy-Assisted Electrocoagulation of a Synthetic Textile Effluent

Pavón-Silva

Romero-Tehuitzil

Río

et al. 2018

International Journal of Photoenergy

View full text Add to dashboard Cite

show abstract

“…According to [68], they mentioned that the total cost estimation typically includes the chemical reagents, cost of electricity, sludge handlings, operators, and maintenance and equipment used in the EC system. However, in laboratory research, the electrode, consumption of electrical energy, and chemicals are the main parameters of the operating expenditure [69,70]. Also, the consumption of zeolite is also revealed in this analysis using Equation (4) as follows:…”

Section: The Economic Aspect Of the Zaep Treatmentmentioning

confidence: 94%

Optimization and Analysis of Zeolite Augmented Electrocoagulation Process in the Reduction of High-Strength Ammonia in Saline Landfill Leachate

Hamid

Aziz

Yusoff

et al. 2020

Water

View full text Add to dashboard Cite

This work examined the behavior of a novel zeolite augmented on the electrocoagulation process (ZAEP) using an aluminum electrode in the removal of high-strength concentration ammonia (3471 mg/L) from landfill leachate which was saline (15.36 ppt) in nature. For this, a response surfaces methodology (RSM) through central composite designs (CCD) was used to optimize the capability of the treatment process. Design-Expert software (version 11.0.3) was used to evaluate the influences of significant variables such as zeolite dosage (100–120 g), current density (540–660 A/m2), electrolysis duration (55–65 min), and initial pH (8–10) as well as the percentage removal of ammonia. It is noted that the maximum reduction of ammonia was up to 71%, which estimated the optimum working conditions for the treatment process as follows: zeolite dosage of 105 g/L, the current density of 600 A/m2, electrolysis duration of 60 min, and pH 8.20. Furthermore, the regression model indicated a strong relationship between the predicted values and the actual experimental results with a high R2 of 0.9871. These results provide evidence of the ability of the ZAEP treatment as a viable alternative in removing high-strength landfill leachate of adequate salinity without the use of any supporting electrolyte.

show abstract

“…3 (b) shows that at 10 min of operating time the removal efficiency increased from 63 to 88% for COD and from 75 to 90% for P. From these results, it can be concluded that the use of iron scrap as anode can enhance the removal of P and COD from urban wastewater and the required current for achieving the maximum COD and P removals was 2 A. It was also reported that the increase in current led to increase the amount of iron hydroxide available in solution and 35 the coagulant production rate, which improves the removal efficiency. Moreover, the bubbles generation rate increased with increasing the current that contributes to the improvement of pollutant removal from 17 wastewater by electroflotation process.…”

Section: Effect Of Currentmentioning

confidence: 77%

A Developed Low-Cost Electrocoagulation Process for Efficient Phosphate and COD Removals from Real Urban Wastewater

Azzouzi¹,

Haboubi²,

Elyoubi³

et al. 2019

ES Energy Environ.

View full text Add to dashboard Cite

The treatment of urban wastewater is nowadays one of the topics taking many interests from the scientific community. This study focuses on simultaneous removal of phosphate (P) and chemical oxygen demand (COD) from real urban wastewater using developed electrocoagulation (EC) system. A comparative study of developed EC process (anode iron scrap) with a conventional EC process (anode iron plate) was performed. When developed EC process was used, the results revealed that the removals efficiencies of P and COD have been improved from-3-3 82% to 94% for COD and from 85 % up to 97% for P, thus led to reduce energy consumption from 7.6x10 to 5.4x10 kWh/g COD and-1-1 from 5.8x10 to 4.3x10 kWh/g P. The higher treatment efficiency obtained from the developed EC process can be directly attributed to the higher effective surface area of the Fe scrap. Moreover, the characterization of generated EC by-products revealed the existence of P, C and O confirming that such pollutants were adsorbed on the surface of iron hydroxides and oxyhydroxides, where the removals of P and COD were taken place. The obtained findings could contribute to improving the EC treatment of real urban wastewater and make the treatment simple and economically feasible.

show abstract

Operating parameters and costs assessments of a real dyehouse wastewater effluent treated by a continuous electrocoagulation process

Cited by 167 publications

References 60 publications

Photovoltaic Energy-Assisted Electrocoagulation of a Synthetic Textile Effluent

Photovoltaic Energy-Assisted Electrocoagulation of a Synthetic Textile Effluent

Optimization and Analysis of Zeolite Augmented Electrocoagulation Process in the Reduction of High-Strength Ammonia in Saline Landfill Leachate

A Developed Low-Cost Electrocoagulation Process for Efficient Phosphate and COD Removals from Real Urban Wastewater

Contact Info

Product

Resources

About