Photocatalytic Decolorization of Tartrazine Using Periwinkle Shell Ash: Effect of Operational Variables, Kinetic and Isotherm Study

Amenaghawon, Andrew N.; Osarumwense, J.O.; Aisien, F.A.; Olaniyan, O.K.

doi:10.15282/ijame.11.2015.34.0215

Cited by 4 publications

(2 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among these dyes, azo dyes constitute the largest and the most important class of commercial dyes. Azo dyes are widely used in the textile, plastic, leather, and paper industries as additives [3][4][5]. The removal of azo dyes from the aquatic environment is important because many azo dyes are toxic to aquatic organisms [6].…”

Section: Introductionmentioning

confidence: 99%

Decolourization and COD reduction of textile wastewater by ozonation in combination with biological treatment

Abidin¹,

Fahmi²,

Ong³

et al. 2022

Int. J. Automot. Mech. Eng.

View full text Add to dashboard Cite

In this study, the characteristics of colour and chemical oxygen demand (COD) removal of azo dye by ozonation and biological treatment were evaluated for applying in industrial azo dye effluent treatment. Reactive Red 120 has been selected from among azo dyes due to its high solubility in an aquatic environment. The experimentation was arranged in two stages: during the first, only ozonation was performed, while, during the second stage, ozonation was integrated with biological treatment of completely mixed activated sludge (CMAS). COD removal was contributed simultaneously by the ozonation and biological treatment mechanism at lower ozone doses. However, it was significantly the result of direct oxidation at higher ozone doses. Ozonation of dyes usually leads to small organic molecular fragments that lead to a residual COD. The biological treatment is more efficient at mineralizing the by-products of the ozonation, but less efficient at colour reduction than the ozonation process itself. Thus, COD resulting from these small newly formed molecules can be further degraded by biological treatment. Therefore, ozonation should be applied at a medium ozone dose as a pre-treatment for a combined ozonationbiological treatment for azo dye removal.

show abstract

Section: Introductionmentioning

confidence: 99%

Decolourization and COD reduction of textile wastewater by ozonation in combination with biological treatment

Abidin¹,

Fahmi²,

Ong³

et al. 2022

Int. J. Automot. Mech. Eng.

View full text Add to dashboard Cite

show abstract

“…However, activated carbon is cost prohibitive and neither the regeneration nor the disposal of used carbon is straightforward. There are many low-cost adsorbents such as banana peel, orange peel, bagasse pith, rice husk, sawdust, coir fibres, and periwinkle shell ash [17][18][19] which are abundantly available in nature. In the present work, low cost papaya leaf (Carica papaya L.) powder has been studied as an adsorbent to remove Reactive Red 3BS from aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

Removal of reactive dye from aqueous solution using coagulation–flocculation coupled with adsorption on papaya leaf

Mukhlish¹,

Khan²,

Islam³

et al. 2016

J. Mech, Eng, Sci.

View full text Add to dashboard Cite

Attempts were made to investigate the effectiveness of a combined process of coagulation-flocculation and adsorption for the removal of reactive dye (Reactive Red 3BS) from aqueous solution. The effluent obtained from the coagulation-flocculation process was the raw solution for the second step of the coupling process, i.e. adsorption. The coagulation-flocculation process and the adsorption method were also studied individually. The optimum pH and the optimum dosages of alum and calcium oxide for the coagulation-flocculation process were determined. Aluminium sulphate (alum), calcium oxide and papaya leaf were used as the coagulant, coagulant aid and adsorbent, respectively. Complete dye removal from raw solution having a concentration of 100 mg L -1 could be achieved by using 300 mg L -1 of alum, 80 mg L -1 of calcium oxide and 0.20 g of papaya leaf adsorbent. Adsorption tests showed that papaya leaf could be used as a potential adsorbent for the removal of Reactive Red 3BS from aqueous solution. The maximum sorption capacities of papaya leaf in the case of sorption from pretreated solution and pure solution were 50.23 mg g -1 and 21 mg g -1 , respectively. The combined coagulation-flocculation/adsorption process may be a useful treatment technique for wastewater contaminated with reactive dye.

show abstract

Preparation of mesoporous Fe2O3·SiO2 composite from rice husk as an efficient heterogeneous Fenton-like catalyst for degradation of organic dyes

Xuan

Lee

2019

Journal of Water Process Engineering

View full text Add to dashboard Cite

Photocatalytic Decolorization of Tartrazine Using Periwinkle Shell Ash: Effect of Operational Variables, Kinetic and Isotherm Study

Cited by 4 publications

References 36 publications

Decolourization and COD reduction of textile wastewater by ozonation in combination with biological treatment

Decolourization and COD reduction of textile wastewater by ozonation in combination with biological treatment

Removal of reactive dye from aqueous solution using coagulation–flocculation coupled with adsorption on papaya leaf

Preparation of mesoporous Fe2O3·SiO2 composite from rice husk as an efficient heterogeneous Fenton-like catalyst for degradation of organic dyes

Contact Info

Product

Resources

About