Role of electrocoagulation in wastewater treatment: A developmental review

Tahreen, Amina; Jami, Mohammed Saedi; Ali, Fathilah

doi:10.1016/j.jwpe.2020.101440

Cited by 233 publications

(56 citation statements)

References 79 publications

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“…EC is an electricallydriven water treatment having the potential to be implemented as a decentralized treatment unit. This treatment technology offers interesting merits as an eco-friendly option, including versatility, ease of setup, minimal sludge production without the need of chemical additives, and a small footprint without compromising the final water quality after treatment [25][26][27].…”

Section: Fluoride Concentration (Mg L 1 )mentioning

confidence: 99%

“…Operation costs include the cost of chemicals, electrical energy, electrodes, materials, maintenance, sludge dewatering, labor, basin and pipes, disposal, and other fixed costs not listed [41,75,77]. A simplified version of the equation of operating cost has been frequently used by authors when computing the techno-economic analysis for an electrocoagulator [41]: OC = aC energy + bC electrodes (27) where C energy is the cost of electrical energy (kWh m −3 ), C electrodes is the cost of electrode material (kg Al m −3 ). The coefficients a (price of metal) and b (cost of electricity) are different depending on the treatment location.…”

Section: Operating Costmentioning

confidence: 99%

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Electrocoagulation as a Promising Defluoridation Technology from Water: A Review of State of the Art of Removal Mechanisms and Performance Trends

Mousazadeh

Alizadeh

Frontistis

et al. 2021

Water

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Fluoride ions present in drinking water are beneficial to human health when at proper concentration levels (0.5–1.5 mg L−1), but an excess intake of fluoride (>1.5 mg L−1) may pose several health problems. In this context, reducing high fluoride concentrations in water is a major worldwide challenge. The World Health Organization has recommended setting a permissible limit of 1.5 mg L−1. The application of electrocoagulation (EC) processes has received widespread and increasing attention as a promising treatment technology and a competitive treatment for fluoride control. EC technology has been favourably applied due to its economic effectiveness, environmental versatility, amenability of automation, and low sludge production. This review provides more detailed information on fluoride removal from water by the EC process, including operating parameters, removal mechanisms, energy consumption, and operating costs. Additionally, it also focuses attention on future trends related to improve defluoridation efficiency.

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Section: Fluoride Concentration (Mg L 1 )mentioning

confidence: 99%

Section: Operating Costmentioning

confidence: 99%

Electrocoagulation as a Promising Defluoridation Technology from Water: A Review of State of the Art of Removal Mechanisms and Performance Trends

Mousazadeh

Alizadeh

Frontistis

et al. 2021

Water

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“…Electrochemical methods allow one to extract valuable components from effluents with a relatively simple automated technological scheme of treatment, often without the use of chemical reagents. The main disadvantage of these methods is the high cost of electricity [32][33][34][35][36][37][38][39][40][41][42].…”

Section: Analysis Of Previous Studiesmentioning

confidence: 99%

Optimization of dose calculation of modified magnetite during sorption purification of water from copper ions to create environmentally friendly technology

et al. 2021

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Due to the growth of man-caused pollution, there is a need to use modern methods of water purification. It is advisable to use sorption methods for the extraction of heavy metals, which are considered to be particularly dangerous. It is established that sorbents based on magnetite are quite effective in the extraction of copper ions. It is shown that the sorption capacity of magnetite-based sorbents towards copper ions depends on the ratio of concentrations of Fe2+ and Fe3+ ions in the reaction mixture, and increases with increasing this indicator from 1/2 to 2. The sorption capacity of the sorbent towards copper ions increases by 4.4 times. It is shown that the efficiency of copper ions removal onto magnetite increases for sorbent modified with sodium sulfide. The proposed scheme provides the possibility of sorption treatment of large volumes of water from copper ions to the norms for the discharge of wastewater into fishery reservoirs. Post-productional magnetite is dehydrated and supplied to metallurgical enterprises for processing. The developed technology of water purification from copper ions is environmentally safe and energy efficient.

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“…Most of the dyes are considered harmful due to the high toxicity and carcinogenicity induced by their nonbiodegradable aromatic structure [ 6 , 7 , 8 ]. Pharmaceutically active compounds (PhACs), such as tetracycline (TC), ciprofloxacin (CIP), triclosan (TCS), carbamazepine (CBZ), salicylic acid (SA), ibuprofen (IBS) and sulfamethazine (SMZ), etc., are helpful to cure human diseases but the pollution from metabolized or partially metabolized pharmaceutical wastes is already recognized as a hazard [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Photoactive Heterostructures on the Photocatalytic Removal of Dyes and Pharmaceutical Active Compounds: A Mini-Review

Eneşca

Andronic

2020

Nanomaterials

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The diversification of pollutants type and concentration in wastewater has underlined the importance of finding new alternatives to traditional treatment methods. Advanced oxidation processes (AOPs), among others, are considered as promising candidate to efficiently remove organic pollutants such as dyes or pharmaceutical active compounds (PhACs). The present minireview resumes several recent achievements on the implementation and optimization of photoactive heterostructures used as photocatalysts for dyes and PhACs removal. The paper is focused on various methods of enhancing the heterostructure photocatalytic properties by optimizing parameters such as synthesis methods, composition, crystallinity, morphology, pollutant concentration and light irradiation.

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Role of electrocoagulation in wastewater treatment: A developmental review

Cited by 233 publications

References 79 publications

Electrocoagulation as a Promising Defluoridation Technology from Water: A Review of State of the Art of Removal Mechanisms and Performance Trends

Electrocoagulation as a Promising Defluoridation Technology from Water: A Review of State of the Art of Removal Mechanisms and Performance Trends

Optimization of dose calculation of modified magnetite during sorption purification of water from copper ions to create environmentally friendly technology

The Influence of Photoactive Heterostructures on the Photocatalytic Removal of Dyes and Pharmaceutical Active Compounds: A Mini-Review

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