Natural organic matter removal and enhanced coagulation as a link between coagulation and electrocoagulation

Ghernaout, Djamel; Ghernaout, Badia; Kellil, Amara

doi:10.5004/dwt.2009.116

Cited by 111 publications

(68 citation statements)

References 61 publications

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“…Indeed, several authors have shown that pre-chlorination induced DOC and DBPs Formation from NOM and algae in treatment processes (Chiu and Wang, 2008;Zong et al, 2013;Zhou et al, 2014;Ghernaout et al, 2009;2015c).…”

Section: Strategies For Monitoring Dbpsmentioning

confidence: 99%

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

Ghernaout

2018

Int. j. adv. appl. sci.

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The generation, monitoring, and health impacts of disinfection by-products (DBPs) in potable water are problems of worldwide worry. Several nations, besides the World Health Organization, possess regulations and/or guidelines on bearable levels of DBPs in water. Since drinking water is frequently remediated using a chemical killing agent, DBPs are pollutants to which several humans are unprotected. On account of the health impacts linked to subjection to chlorinated water and/or some DBPs, the water manufacturing has performed great endeavors to equilibrate killing pathogens and DBP monitoring. Large survey has been realized on rising DBPs of health and regulatory worry. In spite of the fact that the attention on DBPs was previously on chlorine-and bromine-containing carbonaceous DBPs, appearing DBPs comprise iodine-containing species, also halogenated and non-halogenated nitrogenous DBPs. In addition, latest toxicity experimentation has proposed that certain of the more recent PBPs are of more elevated toxicity than some of the regulated chemical products. Therefore, survey has been realized to better comprehend how to costeffectively monitor a large interval of regulated and appearing DBPs. This comprises the usage of advanced remediation and killing pathogens methodologies. This paper shows certain of the newest research works at comprehending these significant DBP-related problems. Disinfection is killing microorganisms present in water; but, it is as well killing human beings drinking water by poisonous DBPs. Using chemicals for water treatment is finally a lost cause.

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Section: Strategies For Monitoring Dbpsmentioning

confidence: 99%

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

Ghernaout

2018

Int. j. adv. appl. sci.

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“…In this situation, iron should exclusively substitute Al and Cu as a green chemical in coagulation process [28][29][30][31][32][33][34][35]. Several studies have proven the Fe efficiency in treating different types of water and wastewater.…”

Section: Iron Instead Of To Toxic Aluminum and Copper In Coagulation mentioning

confidence: 99%

The Holy Koran Revelation: Iron Is a “Sent Down” Metal

Ghernaout¹

2017

AJEP

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Abstract:One of the most important grants of God Almighty to mankind is iron. The reality that there is a Chapter named "Al-Hadid" (Iron) in the Holy Koran can be considered as a sign of its significance. The reality that there is not a Chapter called "adh-Dhahab" (Gold) might be a sign that iron is more crucial than gold since life would go on if gold did not exist but it would not be easy to mention human civilization without iron. Iron is (1) the essential of all of the arts, (2) the source of human development and progress, and (3) in the center of the strength of man. Due to its functions mentioned above and similar ones, the following is stated in the Koran: "…and We sent down Iron, in which is (material for) mighty war, as well as many benefits for mankind...". The fact that this Verse particularly introduces iron is completely astonishing, taking into account that these findings were realized at the termination of the 20th century.

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“…The main advantages of using lime and soda in coagulation process are summarized as follows (Ghernaout et al, 2009;2015b;2017b;Vahedi and Gorczyca, 2014;Ghernaout and Boucherit, 2015;:…”

Section: Advantages Of Coagulation With Lime and Sodamentioning

confidence: 99%

“…Because of the restricted solubility of CaCO3 and Mg(OH)2, during chemical precipitation process, zero hardness water cannot be achieved (Yildiz et al, 2003). On the other hand, classical softening plants performing soft water treatment comprise several unit operations like coagulation/flocculation (Ordóñez et al, 2012;Ghernaout et al, 2009Cheng et al, 2017;Yan et al, 2009), sedimentation, recarbonation and filtration (Wang et al, 2005). Sedimentation and filtration units are employed for separating particulate matters like CaCO3 and Mg(OH)2 (Yildiz et al, 2003;Comstock et al, 2011;Vahedi and Gorczyca, 2011).…”

Section: Introductionmentioning

confidence: 99%

Combining lime softening with alum coagulation for hard Ghrib dam water conventional treatment

Ghernaout¹

2018

Int. j. adv. appl. sci.

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This work aims to control the efficiency of water softening as an inherent phenomenon in the coagulation process or, in other words, to evaluate the softening process as a secondary reaction which is producing simultaneously with the main reaction as the coagulation process. Ghrib Dam water is wellknown for its high hardness ranging from 750 to 900 mg/L as CaCO3. That is, this water is unpleasant to the domestic consumption. Conventional water treatment at the Ghrib Station is based on coagulation using aluminum sulfate [Al2 (SO4)3.18H2O] (alum) as a single coagulant. Alum has a minimal effect on the total hardness and its human toxicity is not yet doubtful. This research introduces the concept of the replacement of alum by lime and sodium hydroxide (NaOH) in coagulation process at the Ghrib Station. Coagulation experiments on jar test using the three reagents (alum, lime, and NaOH) are performed and physicochemical analyses are conducted to evaluate the possibility of alum partial or total replacement for improving the treatment effectiveness in hardness reducing. The obtained results show that hardness is decreased at its half by combining simultaneously the three chemical products: alum = 15, lime = 100, NaOH = 100 mg/L. Additional survey is required to examine the complicated interaction in the Ca 2+ /Mg 2+ -DOM-Al ternary system to comprehensively define the contributions of the two mechanisms -lime softening and coagulation -to organic matter removal by coagulation.

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Natural organic matter removal and enhanced coagulation as a link between coagulation and electrocoagulation

Cited by 111 publications

References 61 publications

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

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

The Holy Koran Revelation: Iron Is a “Sent Down” Metal

Combining lime softening with alum coagulation for hard Ghrib dam water conventional treatment

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