scholarly journals Application of TiO2 nanotubes as photocatalysts for decolorization of synthetic dye wastewater

2021 ◽  
pp. 100163
Author(s):  
Thammasak Rojviroon ◽  
Orawan Rojviroon ◽  
Sanya Sirivithayapakorn ◽  
Sivakorn Angthong ◽  
Voranuch Thongpool
Keyword(s):  
Tio2 Nanotubes ◽  
Dye Wastewater ◽  
Synthetic Dye

scholarly journals Screening the six plant species for phytoremediation of synthetic textile dye waste water

2020 ◽  
Author(s):  
Navjeet Kaur ◽  
Jyotsna Kaushal ◽  
Pooja Mahajan ◽  
Arun Lal Srivas
Keyword(s):  
Plant Species ◽  
Synthetic Wastewater ◽  
Contaminated Sites ◽  
Textile Dye ◽  
Dye Wastewater ◽  
Active Growth ◽  
Synthetic Dye ◽  
Hibiscus Rosa Sinensis ◽  
Chrysanthemum Indicum ◽  
Tagetes Erecta L

Abstract Most of the dyes are carcinogenic and mutagenic in nature. Plants are potential candidates to remediate textile dye wastewater from contaminated sites. The present study aimed toscreen potential plant species for removal of synthetic dye solution of triarylmethane dye Methylene Blue (MB) and diazo dye Congo Red (CR). Six plant species were screened for their phytoremediation ability for the removal of dyes present in synthetic wastewater. Six plants selected for screening areTrachyspermum ammi L. (T. ammi), Tagetes erecta L. (T. erecta), Hibiscus rosa-sinensis L. (H. rosa- sinensis), Chrysanthemum indicum L. (C. indicum), Bryophyllum fedtschenkoi (B. fedtschenkoi), Catharanthus roseus L. (C. roseus). The phytotreatment of dyes was done up to 40 hfortwo different concentrations of dyes 10 mg L− 1 and 20 mg L− 1. Among these plants, the maximum decolouration was obtained from T. ammi plant followed by B. fedtschenkoi plant. Both of these plants showed active growth even after the phytoremediation process. T. ammi decolourised the MB dye 99% (10 mg L− 1) and 86% (20 mg L− 1) while the decolourisation of the CR dye solution was up to 95% (10 mg L− 1) and 84% (20 mg L− 1).T. ammi found to have maximum potential among screened plants for the removal of MB and CR dye from synthetic dye solution and can be used for decolouration of synthetic dye wastewater.

scholarly journals Screening of plant species for phytoremediation of synthetic textile dye wastewater

2021 ◽  
Author(s):  
Navjeet Kaur ◽  
Jyotsna Kaushal ◽  
Pooja Mahajan ◽  
Arun Lal Srivas
Keyword(s):  
Plant Species ◽  
Contaminated Sites ◽  
Textile Dye ◽  
Synthetic Dyes ◽  
Dye Wastewater ◽  
Active Growth ◽  
Synthetic Dye ◽  
Hibiscus Rosa Sinensis ◽  
Trachyspermum Ammi ◽  
Maximum Decolorization

Abstract Most of the dyes are carcinogenic and mutagenic in nature. Plants are potential candidates to remediate textile dye wastewater from contaminated sites. The present study aimed to screen potential plant species for removal of synthetic dye solution of triarylmethane dye Methylene Blue (MB) and diazo dye Congo Red (CR). The six plants selected for screening are Trachyspermum ammi,Tagetes erecta, Hibiscus rosa-sinensis, Chrysanthemum indicum, Bryophyllum fedtschenkoi, and Catharanthus roseus. The phytotreatment of dyes was done up to 40 h for two different concentrations of dyes, i.e., 10 and 20 mg L−1. Among screened plant species, the maximum decolorization was obtained from T. ammi followed by B. fedtschenkoi.Both of these plant species showed active growth even after the phytoremediation process. T. ammi decolorized the MB dye 99% (10 mg L−1) and 86% (20 mg L−1) while the decolorization of the CR dye solution was up to 95%(10 mg L−1) and 84% (20 mg L−1). T. ammiwas found to have maximum potential among screened plants for the removal of MB and CR dye from synthetic dye solution and can be used forphytoremediation of wastewater contaminated with synthetic dyes.

Catalytic treatment of synthetic dye wastewater: COD and color reduction

2013 ◽  
Vol 1 (3) ◽  
pp. 440-447 ◽  
Author(s):  
Pradeep Kumar ◽  
Ruchika Agnihotri ◽  
Monoj Kumar Mondal
Keyword(s):  
Dye Wastewater ◽  
Color Reduction ◽  
Synthetic Dye ◽  
Catalytic Treatment

scholarly journals Coagulation-Flocculation Treatment for Naphthol Green Band Flour Wastewater

2020 ◽  
Vol 6 (12) ◽  
pp. 190-197
Author(s):  
Bukola M. ADESANMI Yung-Tse HUNG and Howard H. PAUL
Keyword(s):  
Removal Efficiency ◽  
Industrial Effluent ◽  
Color Removal ◽  
Preliminary Treatment ◽  
Dye Wastewater ◽  
Synthetic Dye ◽  
Coagulation Process ◽  
Coagulant Dosage ◽  
Wastewater Samples ◽  
The Impact

The interference of synthetic dye in the water bodies and environment poses a risk to both human and environmental health. Due to the recalcitrant nature of dye and presence of many other pollutants in industrial wastewater, efficient method of treatment of industrial effluent is required to address the lingering problem over the years. To address this major concern, experimental was carried out on synthetic dye and flour wastewater treatment by coagulation-flocculation while varying operating parameters (dosage, concentration, coagulant type etc.). The effectiveness of coagulation-flocculation process for the removal of Naphthol Green B in a mixture of dye wastewater and flour wastewater at different concentrations (50 ppm, 100 ppm, 150 ppm, 200 ppm) was investigated. Using 3 coagulant (FeCl3, FeSO4 and Al2(SO4)3), color removal efficiency was also investigated. The effectiveness of the coagulation process was measured for transmittance and absorbance as indices using UV-Vis Spectrophotometer. Also, the total organic carbon (TOC) was measured. Transmittance and absorbance values of 99.6% and 0.001 respectively were achieved post treatment. Ferric Chloride and Aluminum Sulfate gave better results than Ferrous Sulfate which gave the poorest transmittance and absorbance values indicating reduced color removal efficiency. The results of this study revealed that coagulation process is an efficient preliminary treatment for appreciable suspended particles and color removal from dye wastewater. It also showed the impact of coagulant dosage, dye strength and combined wastewater samples on the removal efficiency and resulting effluent quality.

Synergic effect of Ag decoration onto ZnO nanoparticles for the remediation of synthetic dye wastewater

2016 ◽  
Vol 42 (2) ◽  
pp. 2378-2385 ◽  
Author(s):  
Japinder Kaur ◽  
Kanu Gupta ◽  
Vinod Kumar ◽  
Sandeep Bansal ◽  
Sonal Singhal
Keyword(s):  
Zno Nanoparticles ◽  
Synergic Effect ◽  
Dye Wastewater ◽  
Synthetic Dye
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