Electrochemical harvesting of microalgae꞉ Parametric and cost-effectivity comparative investigation

Al-Yaqoobi, Atheer M.; Al-Rikabey, Muna N.; Al-Mashhadani, Mahmood K. H.

doi:10.2298/ciceq191213031a

Cited by 9 publications

(3 citation statements)

References 22 publications

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“…The experimental work was conducted using a Plexiglass cylindrical cell of 9 cm diameter and 10.5 height as described in our early work [22]. To compare electrochemical behaviors of both processes, two types of electrodes material were used as anode martial, which represent the sacrificial electrode (aluminum) and non-sacrificial electrode (graphite).…”

Section: Electrocoagulation Experimentsmentioning

confidence: 99%

Electrochemical harvesting of Chlorella sp.: Electrolyte concentration and interelectrode distance

Al-Yaqoobi

Al-Rikabey

2023

CI&CEQ

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Two modes of electrochemical harvesting for microalgae were investigated in the current work. A sacrificial anode (aluminum) was used to study the electrocoagulation-flotation process, and a nonsacrificial anode (graphite) was used to investigate the electroflotation process. The study inspected the effect of chloride ions concentration and the interelectrode distance on the performance of the electrochemical harvesting processes. The results demonstrated that both electrodes achieved maximum harvesting efficiency with a 2 g/L NaCl concentration. Interestingly, by increasing the NaCl concentration to 5 g/L, the harvesting efficiency reduced dramatically to its lowest value. Generally, the energy consumption decreased with increasing of NaCl concentration. Moreover, the energy consumption achieved with aluminum anodes is lower than that achieved with graphite. However, by increasing the gap between the electrodes from 15 mm to 30 mm, the time required to achieve the maximum efficiency doubled, and energy consumption increased consequently.

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Section: Electrocoagulation Experimentsmentioning

confidence: 99%

Electrochemical harvesting of Chlorella sp.: Electrolyte concentration and interelectrode distance

Al-Yaqoobi

Al-Rikabey

2023

CI&CEQ

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“…(Nishu et al 2020;Vichaphund et al 2019). Enormous type of biomass can be utilized as a source of biofuel, such as food and feed grains (Nonhebel & Kastner, 2011), lingo-cellulosic biomass (Yogalakshmi et al 2022), forest biomass (Wang et al 2020), industrial and municipal waste (Greinert et al 2019) and algal biomass (Al-Yaqoobi et al 2021;Al-Yaqoobi & Al-Rikabey, 2023). Albizia lebbeck (A.L.…”

Section: Introductionmentioning

confidence: 99%

The feasibility of utilizing microwave-assisted pyrolysis for Albizia branches biomass conversion into biofuel productions

Abd,

Al-Yaqoobi

2023

Int. J. Renew. Energy Dev.

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The consumption of fossil fuels has caused many challenges, including environmental and climate damage, global warming, and rising energy costs, which has prompted seeking to substitute other alternative sources. The current study explored the microwave pyrolysis of Albizia branches to assess its potential to produce all forms of fuel (solid, liquid, gas), time savings, and effective thermal heat transfer. The impact of the critical parameters on the quantity and quality of the biofuel generation, including time, power levels, biomass weight, and particle size, were investigated. The results revealed that the best bio-oil production was 76% at a power level of 450 W and 20 g of biomass. Additionally, low power levels led to enhanced biochar production, where a percentage of 70% appeared when employing a power level of 300 W. Higher power levels were used to increase the creation of gaseous fuels in all circumstances, such as in 700 W, the gas yield was 31%. The density, viscosity, acidity, HHV, GC-MS, and FTIR instruments were used to analyze the physical and chemical characteristics of the bio-oil. The GC-MS analysis showed that the bio-oil consists of aromatic compounds, ketones, aldehydes, acids, esters, alkane, alkenes and heterocyclic compounds. The most prevalent component was aromatic compounds with 12.79% and ketones with 12.15%, while the pH of the oil obtained was 5, and the HHV was 19.5 MJ/kg. The pyrolysis productions could be promising raw materials for different applications after further processing.

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“…Furthermore, in electrochemical technology (electrocoagulation-electroflotation), it is not necessary to add external chemicals during the treatment, and the process prevents the release of other pollutants into the environment [20,21]. During the electrochemical process, the toxic organic substances are demolished by the action of active coagulant precursors into the solution which produces by oxidation of the anode material [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Color Removal of Textile Wastewater Using Electrochemical Batch Recirculation Tubular Upflow Cell

Beddai

Badday

Al-Yaqoobi

et al. 2022

International Journal of Chemical Engineering

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The progress in textile industrial technologies comes along with a massive increase in the discharge of dyes in the wastewater which considers a serious environmental problem. In this regard, a new electrochemical system has been developed for the treatment of simulated dye solutions of permanent methylene blue dye by an electrochemical cyclic ring reactor. An aluminum rod and a stainless steel mesh were used as the anode and cathode. The experiments on the artificial dye solutions have been carried out in a 6-liter electrochemical cell containing 50 ppm neutral dye solutions. The effects of various parameters such as electrolysis time applied current density (2, 3.32, 5.31, 6.64, and 7.46 mA cm−2), electrolyte concentrations (600, 900, 1200, 1500, and 1800 ppm), and flow rates (1, 1.5, 2, 2.5, and 3 Lh−1) on the process removal efficiency were examined. The results demonstrated that the removal efficiency reached 94–99% within 40–50 minutes of electrolysis time. The removal efficiency increased by increasing the flow rates until it reaches a maximum value at a flow rate of 2 Lh−1; thereafter, it declined with the farther augment of recirculation speed. It is indicated that raising the applied current resulted in increasing the removal efficiency. However, the power consumption builds up to the maximum value by increasing the applied current, where the power consumption rose from 8.51 to 30.3 kWh kg−1 with an increase in the current density from 2 to 7.46 mA cm−2, and a removal efficiency increased from 94% to 99%, accordingly. The results also showed that by increasing the electrolyte concentration, the power consumption can be reduced to its minimum value and the removal efficiency increased remarkably.

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Electrochemical harvesting of microalgae꞉ Parametric and cost-effectivity comparative investigation

Cited by 9 publications

References 22 publications

Electrochemical harvesting of Chlorella sp.: Electrolyte concentration and interelectrode distance

Electrochemical harvesting of Chlorella sp.: Electrolyte concentration and interelectrode distance

The feasibility of utilizing microwave-assisted pyrolysis for Albizia branches biomass conversion into biofuel productions

Color Removal of Textile Wastewater Using Electrochemical Batch Recirculation Tubular Upflow Cell

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