Evidence map›Paper›PMID 34164789›Full record

ReviewEnvironmental science and pollution research international2021

A critical review of state-of-the-art electrocoagulation technique applied to COD-rich industrial wastewaters.

Milad Mousazadeh, Elnaz Karamati Niaragh, Muhammad Usman, Saif Ullah Khan, Miguel Angel Sandoval, Zakaria Al-Qodah, Zaied Bin Khalid, Vishakha Gilhotra, Mohammad Mahdi Emamjomeh

Abstract readReview
PubMed Publisher
In one paragraph

Review in Environmental science and pollution research international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Milad MousazadehStudent research committee, Qazvin University of Medical Sciences, Qazvin, Iran.
Elnaz Karamati NiaraghCivil and Environmental Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
Muhammad UsmanInstitute for Water Resources and Water Supply, Hamburg University of Technology, Am Schwarzenberg-Campus 3, 20173, Hamburg, Germany.
Saif Ullah KhanDepartment of Civil Engineering, Zakir Husain College of Engineering & Technology, Aligarh Muslim University, Aligarh, U.P., 202001, India.
Miguel Angel SandovalDepartamento de Química de los Materiales, Laboratorio de Electroquímica Medio Ambiental, LEQMA, Universidad de Santiago de Chile USACH, Casilla 40, Correo 33, Santiago, Chile.
Zakaria Al-QodahDepartment of Chemical Engineering, Al-Balqa Applied University, Amman, Jordan.
Zaied Bin KhalidUniversiti Malaysia Pahang (UMP), 26300 Gambang, Kuantan, Pahang, Malaysia.
Vishakha GilhotraDepartment of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India.
Mohammad Mahdi EmamjomehSocial Determinants of Health Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran. m_emamjomeh@yahoo.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Electrocoagulation (EC) is one of the emerging technologies in groundwater and wastewater treatment as it combines the benefits of coagulation, sedimentation, flotation, and electrochemical oxidation processes. Extensive research efforts implementing EC technology have been executed over the last decade to treat chemical oxygen demand (COD)-rich industrial wastewaters with the aim to protect freshwater streams (e.g., rivers, lakes) from pollution. A comprehensive review of the available recent literature utilizing EC to treat wastewater with high COD levels is presented. In addition, recommendations are provided for future studies to improve the EC technology and broaden its range of application. This review paper introduces some technologies which are often adopted for industrial wastewater treatment. Then, the EC process is compared with those techniques as a treatment for COD-rich wastewater. The EC process is considered as the most privileged technology by different research groups owing to its ability to deal with abundant volumes of wastewater. After, the application of EC as a single and combined treatment for COD-rich wastewaters is thoroughly reviewed. Finally, this review attempts to highlight the potentials and limitations of EC. Related to the EC process in batch operation mode, the best operational conditions are found at 10 V and 60 min of voltage and reaction time, respectively. These last values guarantee high COD removal efficiencies of > 90%. This review also concludes that considerably large operation costs of the EC process appears to be the serious drawback and renders it as an unfeasible approach for handling of COD rich wastewaters. In the end, this review has attempted to highlights the potential and limitation of EC and suggests that vast notably research in the field of continuous flow EC system is essential to introduce this technology as a convincing wastewater technology.

Indexed as

Waste Disposal, FluidWastewaterBiological Oxygen Demand AnalysisElectrocoagulationElectrodesIndustrial WasteIndustrial WasteWastewaterCOD removalCOD-rich wastewaterElectrocoagulationEnvironmental pollutionWastewater treatment

Identifiers

PMID34164789

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.