Electrocoagulation treatment of cork boiling wastewater

Silva, João R.; Carvalho, Francisco de A. T. de; Vicente, Carolina; Santos, Andreia D.; Quinta‐Ferreira, Rosa M.; Castro, Luís M.

doi:10.1016/j.jece.2022.107750

Cited by 16 publications

(8 citation statements)

References 64 publications

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“…Although adding the Cl − can prompt the oxidation capacity, the degradation by-products could be more toxic than the parent pollutants. 47 Moreover, excessive Cl − may accelerate the corrosion pitting rate that leads to overconsumption of Fe 48 and Al 49 electrodes. We need to control the amount of electrolyte added to the solution, which is limited to 0.5 g L −1 of NaCl in this study.…”

Section: Effect Of Operating Parametersmentioning

confidence: 99%

Efficient removal of norfloxacin from water using batch airlift-electrocoagulation reactor: optimization and mechanisms analysis

Feng

et al. 2023

RSC Adv.

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Section: Effect Of Operating Parametersmentioning

confidence: 99%

Efficient removal of norfloxacin from water using batch airlift-electrocoagulation reactor: optimization and mechanisms analysis

Feng

et al. 2023

RSC Adv.

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“…The advantages, i.e., flexibility, environmental compatibility, energy efficiency, cost-effectiveness, better automation, and not requiring chemicals [13]. Electrocoagulation is considered an additional environmentally friendly process, and the efficiency of the electrocoagulation process depends on operational parameters, i.e., current density, conductivity, period, temperature, and initial pH [17]. Electrocoagulation refers to emerging technologies based on complicated mechanisms for reducing pollutants from wastewater [13].…”

Section: Electrocoagulation For Wastewater Treatmentmentioning

confidence: 99%

“…These anodes can be formed of aluminum, copper, magnesium, iron, zinc, and stainless steel [8]. The electrocoagulation process's efficiency depends on operational parameters, i.e., current density, conductivity, time, temperature, and initial pH [17]. Testing on COD and TSS parameters is shown in diagrams in Figure 5 and Figure 6.…”

Section: Figure 5 Cod Removal In Some Wastewater By Electrocoagulationmentioning

confidence: 99%

“…The chemical dissolution rate completes one of the critical characteristics of electrocoagulation. Experiments on cork boiling wastewater, highest % COD removed after 60 minutes of reaction utilized the energy of 39.10 W [17]. The COD removal process in wastewater investigated under optimal conditions of the electrocoagulation method can be enhanced with H2O2 & PAC [4].…”

Section: Figure 5 Cod Removal In Some Wastewater By Electrocoagulationmentioning

confidence: 99%

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Systematic literature electrocoagulation for wastewater treatment: Mini-review

Taib¹,

Murtius²,

Fiana³

et al. 2023

World J. Adv. Res. Rev.

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Electrocoagulation is a method that can be used to remove pollutants and nutrients from liquid waste. This method has been found for a long time but has exclusively recently been developed for wastewater treatment after a lengthy process. Electrocoagulation can remove colloidal materials, i.e., suspended solids, metals, and other dissolved solids in wastewater. Several studies have shown that electrocoagulation has been successfully operated in various industrial wastewaters, i.e., bakery, chocolate, cork boiling, olive, biodiesel, Etc. This review uses the systematic review scale mini-review method. Literature was collected from various databases using Harzing's Publish or Perris Software and analyzed by Mendeley Software. The results indicate that the electrocoagulation method has received excellent attention for development, i.e., the effectiveness and energy that must be consumed, and that research is evolving to show the best performance of electrocoagulation.

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“…Next, the cork planks are boiled by immersing them in clean boiling water for 1 h, followed by another stage of stabilization. As a result of this operation, a considerable amount of liquid effluent containing a high concentration of organic matter and tannins is generated, which must undergo treatment before being discharged into the environment. , After these preparation procedures, the cork planks are ready for the production of cork stoppers, which is the novel product of the industrial sector.…”

Section: Introductionmentioning

confidence: 99%

Valorization of Cork Industry By-Products as Sustainable Natural Dyes for Textiles

Pinheiro

Symochko

Castro

2023

ACS Sustainable Chem. Eng.

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The key to achieving sustainable development lies in reducing waste, valorizing waste, and adopting conscious consumption. This study aimed to evaluate the potential of two by-products from the cork industry as natural dyes for textiles. Specifically, cork-cooking wastewater and expanded black cork condensate were tested as eco-friendly coloring agents to dye cotton (both organic and with a surface treatment) and wool. After dyeing, the colored fabric samples were subjected to washing with hot and cold water, as well as natural light exposure, to assess color fastness. The color assessment at the end was performed using ΔE*, which is a parameter that quantifies the magnitude of a color difference, comparing the L*a*b* color coordinates from the CIELAB system of the dyed samples with those of the control sample. The magnitude of ΔE* (>5) showed that, in all cases, the fabric samples exhibited a different color from the controls. However, the best coloring performance was achieved with expanded black cork condensate in wool samples, resulting in a uniform dark brown color (ΔE* = 42.48 ± 0.19). Additionally, the cationized cotton samples showed an interesting brownish-grey hue (ΔE * = 35.02 ± 0.42), indicating that the surface treatment promoted dye fixation, since the organic cotton achieved only a light brown color (ΔE * = 14.52 ± 0.39) and was less resistant to light exposure. Natural dyeing using cork extract presents a sustainable, eco-friendly, and non-toxic alternative for textile dyeing. Furthermore, the observed bacteriostatic effect indicates the potential for producing functionalized colored textiles with great interest in medical applications. The process results in unique and earthy tones while promoting the sustainable use of natural resources and preserving the environment.

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Electrocoagulation treatment of cork boiling wastewater

Cited by 16 publications

References 64 publications

Efficient removal of norfloxacin from water using batch airlift-electrocoagulation reactor: optimization and mechanisms analysis

Efficient removal of norfloxacin from water using batch airlift-electrocoagulation reactor: optimization and mechanisms analysis

Systematic literature electrocoagulation for wastewater treatment: Mini-review

Valorization of Cork Industry By-Products as Sustainable Natural Dyes for Textiles

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