scholarly journals Valorization of Waste Obtained from Oil Extraction in Moringa Oleifera Seeds: Coagulation of Reactive Dyes in Textile Effluents

Materials ◽  
2014 ◽  
Vol 7 (9) ◽  
pp. 6569-6584 ◽  
Author(s):  
Mercè Vilaseca ◽  
Víctor López-Grimau ◽  
Carmen Gutiérrez-Bouzán
Keyword(s):  
Moringa Oleifera ◽  
Reactive Dyes ◽  
Oil Extraction ◽  
Textile Effluents

Application of ecological adsorbent in the removal of reactive dyes from textile effluents

2009 ◽  
Vol 84 (8) ◽  
pp. 1146-1155 ◽  
Author(s):  
Andressa R. Vasques ◽  
Selene M. Guelli U. de Souza ◽  
José A. B. Valle ◽  
Antônio A. Ulson de Souza
Keyword(s):  
Reactive Dyes ◽  
Textile Effluents

scholarly journals Enhanced Coagulation Efficiency of Moringa Oleifera Seeds Through Selective Oil Extraction

1970 ◽  
Vol 4 (1) ◽  
Author(s):  
Suleyman A. Muyibi ◽  
Saad A. Abbas Megat Johari M. M. Noor Fakrul Razi Ahmadun
Keyword(s):  
River Water ◽  
Moringa Oleifera ◽  
Oil Extraction ◽  
Kernel Weight ◽  
Turbid Water ◽  
Water Turbidity ◽  
Turbidity Removal ◽  
Kaolin Suspension ◽  
High Turbidity ◽  
Moringa Oleifera Seed

In this laboratory based study, varying quantities of oil, corresponding to 20 % w/w, 25 % w/w and 30 % w/w kernel weight extracted from Moringa oleifera seeds ( S1, S2, S3) respectively  were applied in the coagulation of model turbid water (kaolin suspension) and turbid river water samples from River Batang Kali and River Selangor in Malaysia to determine the percentage oil removed which gave the best coagulation efficiency. For model turbid water (kaolin suspension) coagulation of low turbidity of 35 NTU, medium turbidity of 100 NTU and high turbidity of 300 NTU, sample S2  gave the best turbidity removal corresponding to 91.7%, 95.5% and 99% respectively. Application of sample S2 to River Batang Kali with low initial turbidity of 32 NTU and high initial turbidity of 502 NTU gave a highest turbidity removal of 69% and 99% respectively. Application to River Selangor with medium initial turbidity- of 87 NTU and high initial turbidity of 466 NTU gave a highest residual turbidity' of 94% and 98.9%,  respectively.Key words: Moringa oleifera seed, selective oil extraction, coagulation, model turbid water (kaolin suspension), river water, turbidity removal.

Anomalous behavior of visible light active TiO2for the photocatalytic degradation of different Reactive dyes

2015 ◽  
Vol 14 (11) ◽  
pp. 2024-2034 ◽  
Author(s):  
Navneet Kaur ◽  
Satwant Kaur Shahi ◽  
Vasundhara Singh
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Reactive Dyes ◽  
Structural Features ◽  
Anomalous Behavior ◽  
Light Irradiation ◽  
Textile Effluents ◽  
Degradation Of Dyes ◽  
Visible Light Active

This article illustrates important substrate–catalyst interaction studies using Reactive dyes and various modified TiO2powders under visible light irradiation and demonstrates the need for developing new catalysts for the degradation of dyes having different structural features present in textile effluents.

scholarly journals Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions

2020 ◽  
Vol 9 (7) ◽  
pp. e937975133
Author(s):  
Bárbara Lemes Outeiro Araújo ◽  
Ednilton Tavares de Andrade ◽  
Kariny Carvalho Vieira Nolasco ◽  
Rafael Peron Castro ◽  
Pedro Castro Neto
Keyword(s):  
Experimental Data ◽  
Mathematical Models ◽  
Moringa Oleifera ◽  
Linear Regression Analysis ◽  
Oil Extraction ◽  
Chemical Extraction ◽  
Lower Efficiency ◽  
Air Temperatures ◽  
Mechanical Press ◽  
Moringa Oleifera Lam

Moringa oleifera Lam. is a drought-resistant plant and able to survive in poor soils, obtaining up to three harvests per year. This culture has wide employability in the cosmetics, medicinal, food industry and also as a potential for water purification. Despite its widespread use, there are few studies on its processing. Thus, the objective of this work was to study the behavior during the drying process, at the drying air temperatures of 40 ºC, 55 ºC and 70 ºC, applying mathematical models to the experimental data, thus selecting the best model according to the kinetics curves of drying, as well as evaluating the effect of this phenomenon on the efficiency of mechanical oil extraction. Pre-dried Moringa oleifera Lam. grains from the city of Barreirinhas (MA) were used, the second semester of 2018 and the experiment conducted at the Agricultural Engineering Department of the Federal University of Lavras (MG). Artificial drying was carried out to a constant grain mass, using a mechanical laboratory dryer in a fixed layer with forced convection, at an air speed of 0.33 ms-1, with controlled drying air temperatures of 40 °C, 55 °C, and 70 °C. Non-linear regression analysis was performed using the Quasi-Newton method to adjust 11 mathematical models to experimental data. The oil was extracted using an expeller-type mechanical press. The press yield and efficiency were calculated from the difference in lipid content obtained by the initial chemical extraction of the grain and residual of the pie. The Exponential Equation of Two Terms was the one that best suited the experimental data for all drying air temperatures. The increase in the temperature of the drying air caused greater volumetric contraction of the moringa grains, which affected the oil extraction yield, resulting in lower efficiency of the mechanical press.

scholarly journals HOGLA LEAF AS A POTENTIAL BIO-ADSORBENT FOR THE TREATMENT OF REACTIVE DYES IN TEXTILE EFFLUENTS

2020 ◽  
Vol 4 (12) ◽  
pp. 1-7
Author(s):  
Abdul Khalque ◽  
Shaikh Ahammed ◽  
Saquib Khan ◽  
Rabiul Awual ◽  
K.Ayaz Rabbani ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Contact Time ◽  
Reactive Dyes ◽  
Textile Wastewater ◽  
Complete Removal ◽  
Reactive Dye ◽  
Textile Effluents ◽  
Typha Angustata ◽  
Colored Wastewater ◽  
Wastewater Samples

A new bio-adsorbent to remove reactive dyes from textile effluent was investigated in the present study. The adsorbent was the leaves of locally available hogla plant (Typha angustata). Initially, sunfix yellow, a reactive dye widely used in textile effluents, was used to check the removal efficiency in terms of contact time, pH of dye solution and adsorbent dosage. Complete removal (100%) of dye was achieved at adsorbent/dye ratio of 2300:1 at pH 10 with 180 minutes contact time. The adsorbent was then applied to deep colored, raw textile wastewater samples and it was found that 2.3 g of adsorbent was able to convert 100 mL of deep colored wastewater to transparent water at pH 10. Additionally, treatment by the adsorbent resulted in significant decreases in pH, BOD, COD, TS, TDS and TSS of wastewater, while improving the DO level.

STUDIES REGARDING ADVANCED PROCESSES USED FOR REACTIVE DYES REMOVAL FROM TEXTILE EFFLUENTS

2009 ◽  
Vol 8 (5) ◽  
pp. 1045-1051 ◽  
Author(s):  
Daniela Cailean ◽  
Carmen Teodosiu ◽  
Florin Brinza
Keyword(s):  
Reactive Dyes ◽  
Textile Effluents ◽  
Dyes Removal

Effect of oil extraction on the composition, structure, and coagulant effect of Moringa oleifera seeds

2021 ◽  
Vol 279 ◽  
pp. 123902 ◽  
Author(s):  
Emilianny Rafaely Batista Magalhães ◽  
Nadja Nayara Fonseca de Menezes ◽  
Francinaldo Leite Silva ◽  
José Wagner Alves Garrido ◽  
Magna Angélica dos Santos Bezerra Sousa ◽  
...  
Keyword(s):  
Moringa Oleifera ◽  
Oil Extraction ◽  
Composition Structure
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