Electrocoagulation Process in the Context of Disinfection Mechanism

Ghernaout, Djamel; Elboughdiri, Noureddine

doi:10.4236/oalib.1106083

Cited by 16 publications

(5 citation statements)

References 37 publications

(42 reference statements)

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“…To completely take advantage of the electrochemical setup, cathodic phenomena (like the in-situ formation of H 2 O 2 ) may be combined with EO [1] [103]. When iron ions are introduced into the electrolyte [104] [105] [106], a hybrid setup consisting of EO and the electro-Fenton (E-F) [107] technique can considerably boost the oxidation efficacy (Figure 1(a)). Long et al [84] examined an electrochemical device with a BDD anode, and a carbon felt cathode for demobilizing M. aeruginosa.…”

Section: Electrooxidationmentioning

confidence: 99%

“…For instance, in the case of an Al anode, following the aqueous pH, the electrogenerated Al 3+ ions could be converted into different monomeric and polymeric Al species [1]. Among them, Al(OH) 3 is the predominant species (Reaction (13) and Reaction (14), Table 3) that results in the production of precipitates [123] [124] [125]. Theoretically, the amount of metal ions liberated from the anodic oxidation is stoichiometrically linked with the number of electrons passing across the electrode [126] [127] [128].…”

Section: Electrocoagulation (Ec)mentioning

confidence: 99%

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Electrochemically and Ultrasonically-Enhanced Coagulation for Algae Removal

Ghernaout¹,

Elboughdiri²

2023

GSC

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At the global level, the augmenting presence of harmful algae blooms constitutes important dares to water treatment plants (WTPs). In WTPs, coagulation remains the primary process of the applied procedure to treat algae-contaminated water. Such a chemical process influences the following techniques; thus, regulating coagulation parameters to eliminate algae at the maximum degree without provoking cell deterioration is more than crucial. This work aims to review coagulation-founded methods for algae elimination. First, investigations concentrating on algae elimination using the chemical process are discussed. The introduction presents the widespread algae encountered in the water treatment field. Then, habitually utilized experimental techniques and emerging methods in coagulation investigations are summarized with typical findings. Next, the newest expansions in improved algae elimination, launched by electrochemically and ultrasonically-enhanced coagulation, are discussed. Workable thoughts for applying coagulation to eliminate algae in WTPs are also debated. The paper finishes by defining restrictions and dares related to the present literature and suggesting trends for subsequent studies. The charge neutralization mechanism efficiently removes solubilized microcystins (MCs), and enhanced coagulation configuration is also found to be more efficient for their removal. However, considerations should be taken to avert that the acid introduction has no unwanted effect in killing algae treatment to avoid the solubilized MCs level elevation. If such techniques are well-optimized and controlled, both algae and solubilized MCs could be efficaciously removed by ultrasound-enhanced coagulation and electrocoagulation/electrooxidation.

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Section: Electrooxidationmentioning

confidence: 99%

Section: Electrocoagulation (Ec)mentioning

confidence: 99%

Electrochemically and Ultrasonically-Enhanced Coagulation for Algae Removal

Ghernaout¹,

Elboughdiri²

2023

GSC

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“…Chen et al [34] focused on the influence of catalytic ozonation in a fluidized bed reactor (FBR) on the generation of single disinfection by-products (DBPs) [35]- [44]. They employed a biofiltration column to assess the reduction performance of biotreatment on DBP precursors.…”

Section: Catalytic Ozonation and Biofiltration For Reducing The Genermentioning

confidence: 99%

Towards Enhancing Ozone Diffusion for Water Disinfection—Short Notes

Ghernaout¹,

Elboughdiri²

2020

OALib

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Thanks to its performance in eliminating color, UV absorbance, trace organic compounds, and microorganisms, ozone application in treating water has acquired vogue. The intensification of mass transfer and mixing in ozone-founded disinfection methods stays so crucial to attaining the desired disinfection level at an acceptable price. This work discusses the growing tendency of improving ozone diffusion for better water disinfection. Researchers suggested a new procedure of ozonation supported by a liquid whistle reactor (LWR), which produces hydrodynamic cavitation, for disinfecting water. This integration has been observed to be a cost-efficient method for attaining extreme disinfection paralleled to the solo running of hydrodynamic cavitation (lower magnitude of disinfection) and ozonation (higher prices of treatment frequently attributed to higher cost of ozone production). Further, juxtaposed to the traditional bubble reactor, the achievement of high disinfection performance at a small Ct estimate in a rotating packed bed (RPB) depicted that RPB is an efficacious ozone disinfection contactor for killing microorganisms in water. Finally, electrogenerated ozonation could be a surpassed technique confronted with chlorination in terms of disinfection and poisoning reduction.

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“…In addition, the EC system required a smaller scale and lower operating cost rather than other oily treatment systems. Furthermore, the EC process has found an efficient pathogens removal [4] as well as potential toxic metals removal such as zinc, copper, and chromium. Large restaurants and households require an oil and grease trapping unit to separate the oil and grease content before discharging wastewater due to Thailand's regulations.…”

Section: Introductionmentioning

confidence: 99%

Application of Electrocoagulation in Street Food Wastewater

Khanitchaidecha

Ratananikom

Yangklang

et al. 2022

Water

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Street food is commonly known as ready-to-eat and go foods and beverages, which is very famous in Thailand and other Asian countries. The street food daily generates high organic content and oily wastewater from washing and rinsing plates. The discharge of street food wastewater to public drains leads to a clogged drain line and unpleasant smell. In this work, an electrocoagulation (EC) system with monopolar aluminum (Al) electrodes was developed to treat two well-known street foods; Hainanese chicken rice (HC) and noodles and dumplings (ND). The results revealed that excellent chemical oxygen demand (COD) and fat, oil, and grease (FOG) removals were achieved under a specific operating condition (i.e., an electric current of 20 mA/cm2 and electrolytic time of 10 min). The initial COD of HC wastewater decreased from 40.6 g/L to 1.9 g/L, approximately 95%, whereas the FOG decreased from 310 mg/L to 50 mg/L, approximately 84%. The lower initial COD and FOG concentrations of ND wastewater obtained approximately 98% for COD removal and 86% for FOG removal; the effluent contained 0.5 g/L of COD and 25 mg/L of FOG. In addition, a relatively low Al concentration of 0.02–0.08 mg/L was observed in the effluents. The appropriate design factors together with ease of use and fast pollutants removal were significant advantages of this study; the EC system has potential to apply to on-site street food treatment.

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Electrocoagulation Process in the Context of Disinfection Mechanism

Cited by 16 publications

References 37 publications

Electrochemically and Ultrasonically-Enhanced Coagulation for Algae Removal

Electrochemically and Ultrasonically-Enhanced Coagulation for Algae Removal

Towards Enhancing Ozone Diffusion for Water Disinfection—Short Notes

Application of Electrocoagulation in Street Food Wastewater

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