Disinfection and DBPs removal in drinking water treatment: A perspective for a green technology

Ghernaout, Djamel

doi:10.21833/ijaas.2018.02.018

Cited by 41 publications

(11 citation statements)

References 68 publications

(117 reference statements)

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“…The fundamental oxidant implicated is the • OH. This radical possesses two magnificent benefits as contrasted with diverse conventional oxidants, as in the instance of chlorine: the • OH diminishes the production of dangerous by-products [68] and could be quicker and more efficacious, due to the severe oxidation circumstances. For all the excellent expansions in this domain, illustrated in a huge amount of publications, numerous dares stay [69].…”

Section: Dares In Dealing With Industrial Wastesmentioning

confidence: 99%

Electrochemical Technology for Wastewater Treatment: Dares and Trends

Ghernaout¹,

Elboughdiri²

2020

OALib

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For treating wastewater, electrochemical engineering has been rediscovered during the last four decades through the world for its inherent advantages comparatively with traditional technologies especially the chemical and biological techniques. However, the expansion of this technology founded on electric current applying has been retarded by several technical-economic factors especially the detection of disinfection by-products (DBPs) formation. This work focuses on the challenges and future tendencies for this highly-efficient technology to reach the full-scale implementations particularly in disinfecting water. Lately, new versions of electrochemical techniques have been suggested such as employing sulfate radical anion ( 4 SO •− ) and sunlight to generate • OH radicals in TiO 2 photocatalysis and photo-Fenton water treatment. These improvements elevated the electrochemical engineering efficiency and acceptation. However, more efforts remain to be accomplished for water reuse vision. Future researches would focus on integrating membranes processes such as nanofiltration and reverse osmosis for a safe removal of DBPs.

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Section: Dares In Dealing With Industrial Wastesmentioning

confidence: 99%

Electrochemical Technology for Wastewater Treatment: Dares and Trends

Ghernaout¹,

Elboughdiri²

2020

OALib

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“…In addition, Clanions to reduce the precipitation of calcium carbonate in hard surface [94]. If the current density is elevated, Cl-may as well be oxidized to active chlorine forms, like hypochlorite anions, that may oxidize organic matters [37] and ferrous ions [5] or participate in killing microorganisms in water [109][110][111][112]. To providing 20% of the anion's existent must be Cl- [77].…”

Section: Tablementioning

confidence: 99%

“…Ghernaout D (2019) Electrocoagulation Process: A Mechanistic Review at the Dawn of its Modeling. J Environ Sci Allied Res 2019:22-38.…”

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confidence: 99%

Electrocoagulation Process: A Mechanistic Review at the Dawn of its Modeling

Ghernaout¹

2019

Journal of Environmental Science and Allied Research

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During the two last decades, electrocoagulation method (EC) was the focus of many industrial applications and remains a fascinating domain of research. Most published researches concern uses in treating potable water and wastewaters to increase both the removal of dissolved and undissolved contamination. Significant achievements have been realized comprising participations to fundamental comprehension, electrode metals, working parameters, device conception, and economic aspects determinations. Despite the fact that there are several benefits mentioned through the specialized references, the EC large-scale use is not until now viewed as a recognized wastewater technique due to the absence of viable models used in designing device. The present review discusses the mechanisms involved in the EC process and opens a broad perspective on its modeling. The scientific community is near to suggest empirical/theoretical models to present the EC technology as a viable green process. However, more great efforts remain to be accomplished. Technological software developers such as COMSOL™ Multiphysics are invited to insert the EC process in their electrochemistry module to better commercialize this intensified technique and encourage its massive use through the world.

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“…There have been epidemiological confirmations of solid link among its subjection and harmful net results especially the cancers of vital organs in humans. Halogenated trihalomethanes (THMs) and haloacetic acids are two main groups of disinfection by-products (DBPs) frequently observed in waters disinfected using chlorine [12][13][14]. The global amount of THMs and the generation of single THM species in chlorinated water greatly depend on the constitution of the raw water, on working factors and on the existence of remaining chlorine [15] in the distribution system.…”

Section: Chlorine Toxicitymentioning

confidence: 99%

The Lethal Water Tri-Therapy: Chlorine, Alum, and Polyelectrolyte

Ghernaout¹,

Algahmdi²,

Aichouni³

et al. 2018

WJAC

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There is no doubt that the chemical water treatment has resolved the problem of drinking water supply for several decades to humankind especially in terms of pathogen microorganisms and turbidity removal. However, due to chemicals used through this treatment and increasing quantities of pollutants discharged into nature, numerous health problems have been largely more and more proved and reported. This review discusses the toxicity of chlorine, alum, and polyelectrolyte which are widely employed through the world. The main addressed question here is: When the true and radical water treatment technology will be really and definitely applied? There is no water treatment technique but only distillation process which is successfully applied at the largest scale in nature by God. At least, physical processes such as membrane processes should be more and more applied through water treatment plants for reducing chemicals use. Most of chlorination disadvantages may be avoided through a better understanding of the mutual actions conducting to the generation of chlorine by-products and the use of more sophisticated procedures to assess toxicity capacity of such chemicals. Finally, this study arrives at its time since the Environmental Engineers and the Green Chemistry specialists have largely opened the discussion about polluting industry and preserving nature. Returning Man to its initial and noble Mission on Earth is reflected through this research to preserve both humankind and nature.

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Disinfection and DBPs removal in drinking water treatment: A perspective for a green technology

Cited by 41 publications

References 68 publications

Electrochemical Technology for Wastewater Treatment: Dares and Trends

Electrochemical Technology for Wastewater Treatment: Dares and Trends

Electrocoagulation Process: A Mechanistic Review at the Dawn of its Modeling

The Lethal Water Tri-Therapy: Chlorine, Alum, and Polyelectrolyte

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