Solar photovoltaic-battery system as a green energy for driven electrochemical wastewater treatment technologies: Application to elimination of Brilliant Blue FCF dye solution

Ganiyu, Soliu O.; Brito, Laysa R.D.; Costa, Emily Cintia Tossi de Araújo; Santos, Elisama Vieira dos; Martínez‐Huitle, Carlos A.

doi:10.1016/j.jece.2019.102924

Cited by 40 publications

(20 citation statements)

References 58 publications

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“…As described in a previous work, the weather in Natal is very sunny nearly every day owing to the proximity of the city to the equator. It was observed that it is possible for two PV modules to generate current intensities of over 10 A for 8 to 9 h day −1 when the irradiation intensity is greater than 15 000 kJ m −2 , with an almost constant voltage of ∼27 V recorded from the PV to the batteries.…”

Section: Resultsmentioning

confidence: 77%

Solar‐powered BDD‐electrolysis remediation of soil washing fluid spiked with diesel

Henrique

Andrade

Neto

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND The remediation of a soil spiked with diesel using Unitol L90 and sodium dodecyl sulfate (SDS) in a soil washing process was evaluated. The washing process was followed by an anodic oxidation based on boron doped‐diamond electrolysis (BDD‐electrolysis) to treat the washing liquid, using a solar photovoltaic (PV)‐battery system as a direct electrical power source. RESULTS The results demonstrate that high concentrations of Unitol L 90 and SDS are required for the surfactant‐aided soil‐washing (SASW) to efficiently extract diesel from the soil. However, Unitol L 90 strongly interacts with the soil due to the adsorption process. The main characteristics of the effluents produced during this soil remediation was low conductivity. Therefore, the addition of 0.05 mol L–1 sodium sulfate (Na2SO4) as an electrolyte, at current density of 30 mA cm−2, was investigated. BDD‐electrolysis demonstrated that total organic carbon (TOC) and total petroleum hydrocarbon (TPH) were removed more effectively using SDS. The key of the treatment is associated to the electrogeneration of S2O82− due to the contribution of the surfactant composition and the addition of 0.05 mol L–1 Na2SO4. Additionally, an average solar irradiation intensity and integration of PV cells produced more than 10 A current and continuous electricity (∼27 V), which was constantly supplied to the electrolytic reactor at all times through a direct current generator. CONCLUSIONS Finally, based on the achieved results, BDD‐electrolysis is an efficient technology approach to remove hydrocarbons from the effluent produced during the soil washing process. © 2019 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 77%

Solar‐powered BDD‐electrolysis remediation of soil washing fluid spiked with diesel

Henrique

Andrade

Neto

et al. 2019

J of Chemical Tech & Biotech

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“…The 3-factorial experiments were carried out under the BBD with the DX11 software using the predicted and experimental data of the responses (copper removal (Y 1 ) and energy consumption (Y 2 )), which are presented in Table 2. The response functions with the fix coefficients for copper and energy consumption are performed with equations (7) and (8) Y 1 (copper removal, %) = 58.94333…”

Section: Response Analysis and Explanation By Bbd Methodsmentioning

confidence: 99%

“…The quadratic regression technique is appropriate, being apparent from the F-test with a shallow probability value (Prob > F). Table 3 resulted in ANOVA analysis considering the significance of factors in PV-EC experiment through equation (7) and (8). Because the p-values of each coefficient are less than 0.05, it shows that indicate model terms are significant.…”

Section: Response Analysis and Explanation By Bbd Methodsmentioning

confidence: 99%

“…However, the major disadvantage of EC is its high electricity consumption, which also constitutes a critical environmental issue and has economic impact. Thus, the application of traditional electrical energy to power an electrocoagulation reactor is the primary barrier to wider utilization in developing countries where the electrical grids are less reliable [Cucchiella et al, 2016;Ganiyu et al, 2019].…”

Section: Introductionmentioning

confidence: 99%

“…The application of battery energy storage (capacitance) has been used to provide the energy produced on a bright sunny day, which is stored for use on a raining day or at night. Furthermore, using photovoltaic battery systems solves the issue of tremendous output power frequently encountered in PV arrays [Ganiyu et al, 2019]. As such, an electrocoagu .…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Copper Removal by Photovoltaic Electrocoagulation from Aqueous Solution Using Response Surface Methodology Towards Sustainable Development

Nguyen¹,

Nguyen²,

Lan³

2019

J. Ecol. Eng.

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This research aims at illustrating the optimal functions of removing copper ions in aqueous solution by means of the electrocoagulation process in which portable solar power generators are used as renewable energy. A solar photovoltaic cell (PV), producing approximately 48A current intensity for 4-7 h per day, was sufficient to charge the lithium batteries completely during the day. This system was connected directly to the electrocoagulation tank. The Box-Behnken design (BBD) was applied to evaluate three effects of process factors: current density, the dose of electrolyte (NaCl), and application time. The results showed that an optimal efficiency of 99.01% Cu removal plus an energy savings of 1.039 kWh/m 3 were obtained at a current density of 4 A/m 2 , the dosage of NaCl (electrolyte) of 1.87 g/L, and electrolysis time of 10 min. The chemical components of the sludge produced under these optimized conditions were determined by means of EDX. It was illustrated that the copper ions were the main elements of sludge, and nonhazardous compounds were contained. The PV-lithium battery system is considered to be an efficient alternative energy source toward sustainable development.

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Importance of Electrode Tailoring in the Coupling of Electrolysis with Renewable Energy

et al. 2020

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In this work, it has been evaluated how the performance of an electrolyzer, used to treat a clopyralid waste and directly powered without regulation by a battery, is influenced by the electrodes resistance. Electrolyzers were equipped with electrodes consisting of the same boron-doped diamond (BDD) coating deposited on different substrate (Si, Ta and Nb). The results expose great differences despite using the same coating. Faster removal rates were attained with Ta-and Nb-BDD electrodes. The amount of energy required to attain the same removal efficiency showed great differences. Up to 1.95 mg/Wh of pesticide were removed when using Si, compared to 2.14 mg/Wh removed with Ta. Furthermore, the quantity and strength of the generated oxidants were also quite different. 86.78 mmol of oxidants were needed to remove a gram of pesticide with Ta-BDD and 30.57 mmol with Si-BDD. Therefore, the electrode resistance is an important aspect that must be considered in order to get a suitable design of energy storage systems that allow the green photovoltaic powering of electrochemical technologies using conventional batteries as a booster to ensure a continuous operation.

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Solar photovoltaic-battery system as a green energy for driven electrochemical wastewater treatment technologies: Application to elimination of Brilliant Blue FCF dye solution

Cited by 40 publications

References 58 publications

Solar‐powered BDD‐electrolysis remediation of soil washing fluid spiked with diesel

Solar‐powered BDD‐electrolysis remediation of soil washing fluid spiked with diesel

Optimization of Copper Removal by Photovoltaic Electrocoagulation from Aqueous Solution Using Response Surface Methodology Towards Sustainable Development

Importance of Electrode Tailoring in the Coupling of Electrolysis with Renewable Energy

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