Coagulation of polymeric wastewater discharged by a chemical factory

Al-Malack, Muhammad H.; Abuzaid, Nabil S.; El‐Mubarak, Aarif H.

doi:10.1016/s0043-1354(98)00219-x

Cited by 49 publications

(23 citation statements)

References 12 publications

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“…COD removal correlates well with color removal at the optimum coagulant dosage, confirming that melanoidins constitute the predominant portion of organic compounds in bio-treated molasses wastewater. Ferric chloride yielding the best results among other coagulants was observed in the coagulation of polymeric wastewater [18].…”

Section: Coagulation Performances Of Conventional Coagulantsmentioning

confidence: 94%

Variables affecting melanoidins removal from molasses wastewater by coagulation/flocculation

Liang

Wang

Zhou

et al. 2009

Separation and Purification Technology

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Section: Coagulation Performances Of Conventional Coagulantsmentioning

confidence: 94%

Variables affecting melanoidins removal from molasses wastewater by coagulation/flocculation

Liang

Wang

Zhou

et al. 2009

Separation and Purification Technology

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“…Le rejet de cette charge polluante à l'égout présente certainement des nuisances potentielles pour le milieu récepteur (abrasion des conduites d'évacuation, impact sur la faune et la flore marines, mauvaises odeurs...). (Lefebvre et Legube, 1990 ;Al-Malack et al, 1999). La valeur du pH optimal est déterminée en suivant l'évolution du rapport de la DCO de l'effluent traité sur la DCO de l'effluent initial (DCOt/DCOi) en fonction du pH ( Cette figure montre que le rapport DCOt/DCOi diminue jusqu'à une valeur minimale de 11 % par utilisation de l'aluminium.…”

Section: Tableau 2 : Caractéristiques Physico-chimiques De L'effluentunclassified

“…Cette figure montre que la turbidité de l'effluent décroît rapidement de 990 FTU jusqu'à une valeur minimale de 15 FTU pour une dose de 1,7 g/l d'aluminium élémentaire et à pH optimal égal à 7. Ceci peut être expliqué par le fait que la restabilisation du floc intervient simultanément avec l'apparition de charge positive sur les particules (Stephenson et Duff, 1996et Al-Malack et al, 1999. La figure 5 illustre la variation de la conductivité en fonction de la dose du coagulant.…”

Section: Evolution De La Matière Organique (Dco) En Fonction De La Dounclassified

Traitement d’effluents de l’industrie textile par combinaison de procédés de coagulation-floculation-nanofiltration

Abouzaid¹,

Mouzdahir²,

Lhadi³

2005

Environnement, Ingénierie &Amp; Développement

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Des essais de traitement d'effluents de l'industrie textile par coagulation-floculation, nanofiltration et par combinaison coagulation-floculation-nanofiltration ont été effectués. Les résultats montrent que la coagulation-floculation par le sulfate d'aluminium conduit à des abattements de la matière organique de 87% de DCO et de la turbidité de 98% pour une dose de 1,7 g/l d'aluminium élémentaire. Cette méthode de traitement ne permet pas d'éliminer la matière organique soluble ainsi que les sels. Par contre, les résultats de la nanofiltration et de la combinaison coagulation-floculation-nanofiltration ont montré que cette dernière méthode conduit à des abattements de la matière organique de 98% de DCO et des sels de 99,9%. Industrie / textile / rejet / nanofiltration / coagulation-floculation.Treatment of textile effluent by the process coagulationfloculation-nanofiltration. Many attempts of treatment of the effluent of textile industry by coagulation-floculation, nanofiltration and by combined coagulation-floculation-nanofiltration were realised. The results shows that coagulation-floculation loading to reduction of the organic matter of 87% of COD and the turbidity of 98% for a dose of 1.7 g/l of elementary aluminium, but does not eliminate the soluble organic matter and the salts.Then, the membrane filtration process offers an alternative effluent treatment.To avoid the colmatation of the membrane module, we chosed to treat the textile effluent by coagulationfloculation.The solution in the dye bath goes directly to the nanofiltration unit, where the soluble contaminants are retained. Hence, clear water is produced. On other hand, the results of nanofiltration and of combined process coagulation-floculation-nanofiltration showed that last method leads to rejection of the organic matter of 98% of COD and salts of 99,9%. Since, the clear water was produced that can be recycled in company.

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“…Meanwhile, research and practical applications have shown that coagulation will lower the pollution load and could generate an adequate water recovery [7] [8].…”

Section: Introductionmentioning

confidence: 99%

Application of Single Angle Turbidimetry on Coag-Flocculation Effect of <i>Detarium microcarpum</i> Seed in Brewery Effluent

Okolo¹,

Nnaji²,

Menkiti³

et al. 2014

MSA

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Coagulation-flocculation is a proven technique for the removal of suspended solids in wastewater, through the application of single angle turbidimetric measurement. Through this measurement, the coag-flocculation kinetics and functional parameters behavior of Detarium microcarpumin brewery effluent with respect to pH, dosage and time were followed at room temperature. Process parameters such as order of reaction α, rate constant (K), coagulation period τ1/2 etc were determined. Results indicated that reaction order, rate constant, period, pH and dosage recorded optimum values at 2, 1.8 × 10 −2 L/mg•min, 0.152 min, 4 and 100 mg/L, respectively. Maximum efficiency recorded was 96.07% at 30 min. Detarium microcarpum has shown potential as an effective bio-coagulant for the removal of turbidity from brewery effluent.

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Coagulation of polymeric wastewater discharged by a chemical factory

Cited by 49 publications

References 12 publications

Variables affecting melanoidins removal from molasses wastewater by coagulation/flocculation

Variables affecting melanoidins removal from molasses wastewater by coagulation/flocculation

Traitement d’effluents de l’industrie textile par combinaison de procédés de coagulation-floculation-nanofiltration

Application of Single Angle Turbidimetry on Coag-Flocculation Effect of <i>Detarium microcarpum</i> Seed in Brewery Effluent

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Coagulation of polymeric wastewater discharged by a chemical factory

Cited by 49 publications

References 12 publications

Variables affecting melanoidins removal from molasses wastewater by coagulation/flocculation

Variables affecting melanoidins removal from molasses wastewater by coagulation/flocculation

Traitement d’effluents de l’industrie textile par combinaison de procédés de coagulation-floculation-nanofiltration

Application of Single Angle Turbidimetry on Coag-Flocculation Effect of &lt;i&gt;Detarium microcarpum&lt;/i&gt; Seed in Brewery Effluent

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Application of Single Angle Turbidimetry on Coag-Flocculation Effect of <i>Detarium microcarpum</i> Seed in Brewery Effluent