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

2020 ◽  
Author(s):  
Navjeet Kaur ◽  
Jyotsna Kaushal ◽  
Pooja Mahajan ◽  
Arun Lal Srivas

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 (T. ammi), Tagetes erecta (T. erecta), Hibiscus rosa-sinensis (H. rosa- sinensis), Chrysanthemum indicum (C. indicum), Bryophyllum fedtschenkoi (B. fedtschenkoi), and Catharanthus roseus (C. 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. 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 phytoremediation of wastewater contaminated with synthetic dyes.

2021 ◽  
Author(s):  
Navjeet Kaur ◽  
Jyotsna Kaushal ◽  
Pooja Mahajan ◽  
Arun Lal Srivas

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.


2020 ◽  
Author(s):  
Navjeet Kaur ◽  
Jyotsna Kaushal ◽  
Pooja Mahajan ◽  
Arun Lal Srivas

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 (T. ammi), Tagetes erecta (T. erecta), Hibiscus rosa-sinensis (H. rosa- sinensis), Chrysanthemum indicum (C. indicum), Bryophyllum fedtschenkoi (B. fedtschenkoi), and Catharanthus roseus (C. 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. 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 phytoremediation of wastewater contaminated with synthetic dyes.


2020 ◽  
Author(s):  
Navjeet Kaur ◽  
Jyotsna Kaushal ◽  
Pooja Mahajan ◽  
Arun Lal Srivas

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 (T. ammi), Tagetes erecta (T. erecta), Hibiscus rosa-sinensis (H. rosa- sinensis), Chrysanthemum indicum (C. indicum), Bryophyllum fedtschenkoi (B. fedtschenkoi), and Catharanthus roseus (C. 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. 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 phytoremediation of wastewater contaminated with synthetic dyes.


2021 ◽  
Author(s):  
Navjeet Kaur ◽  
Jyotsna Kaushal ◽  
Pooja Mahajan ◽  
Arun Lal Srivas

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 design an efficient hydroponic system to screen potential ornamental 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 plant species showed active growth in indigenous designed hydroponic system 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. ammi was found to have maximum potential among screened plants for the removal of MB and CR dye from synthetic dye solution when kept in designed hydroponic system and can be used for phytoremediation of wastewater contaminated with synthetic dyes.


2020 ◽  
Author(s):  
Navjeet Kaur ◽  
Jyotsna Kaushal ◽  
Pooja Mahajan ◽  
Arun Lal Srivas

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.


2017 ◽  
Vol 6 (1) ◽  
pp. 1 ◽  
Author(s):  
Mochamad Lutfi Firdaus ◽  
Noli Krisnanto ◽  
Wiwit Alwi ◽  
Ronald Muhammad ◽  
Muhamad Allan Serunting

Synthetic dye wastewater from textile industries is characterized by strong color, high temperature, variable pH and high chemical oxygen demand (COD). The strong color of wastewater affects aesthetic and water transparency of water bodies. The metabolites could be toxic to aquatic biota and posing a potential hazard to human health. Eventually, it will cause severe environmental problems. One of method that has advantages in term of simplicity to remove synthetic dyes is adsorption. Environmentally benign and low-cost materials to make adsorbent are biomass-based materials. Two different biomaterial wastes of rice straw and oil palm midrib were used in this study to develop activated carbon adsorbents. These adsorbents were applied for the removal of Naphtol AS-G dye in aqueous solution. The effects of solution pH, adsorbents masses and contact time on dye adsorption were evaluated based on batch experiments. Removal of dye can be achieved within 60 minutes at a wide pH range starting from 4 to 8. At lower pH, synthetic dye removal was decreasing probably due to protonation of adsorbent’s active sites. The adsorption isotherms based on Langmuir and Freundlich models were analyzed. The isotherms analysis indicated that the adsorption by rice straw and oil palm can be represented by Langmuir and Freundlich isotherm model, respectively. Adsorption isotherms of Naphtol AS-G onto activated carbon are favorable with high adsorption capacity for both biomaterials. The mechanisms of color removal by activated carbon involved chemical and physical adsorption, in accordance with both the Langmuir and Freundlich models. The calculated maximum dye adsorption capacities onto rice straw and oil palm midrib activated carbon were 55.86 and 69.44 mg/g, respectively. Adsorption using biomass-based activated carbon offers a good technique for textile wastewater treatment as it could remove up to 95% of the color intensity besides reducing other pollutants such as COD, nitrate and phosphate. 


2017 ◽  
Vol 753 ◽  
pp. 237-242
Author(s):  
Sirilak Namwong ◽  
Natkamol Peungsamran ◽  
Jitlada Chumee

The high concentration of salt in textile dye wastewater is one of the limiting factors for evaluating an effective biodecolorization system. Thirty-nine strains of salt-tolerant bacteria were screened for their ability to decolorize azo dyes (cationic blue 41) in the presence of 10% NaCl (w/v). Among them, C15-3 was the most effective strain for decolorizing synthetic dye wastewater. Due to the advantages in the use of immobilized cells over other textile wastewater treatments, the entrapment procedure was selected as it generated preferable conditions for dye decolorization. The ratio suitable for the whole cell entrapment technique was 1% (w/v) alginate and 2.5% (w/v) gelatin. In decolorization batching, the immobilized cells were advantaged over free cells for dye removal over a range of pH and temperatures. Synthetic dye wastewater was decolorized by the immobilized cells in the pH 4.0-10.0 range (pH 4.0-8.0 for whole cell system). The immobilized beads were more effective in the removal of synthetic dye at 50°C (optimal temperature) when compared to free cells (optimally at 40°C). Tests revealed that the decolorization products were less phytotoxic when compared to undecolorized azo dye. Immobilized cells were reusable in 4 cycles at pH 7.2 and 37°C, indicating that the addition of immobilized halotolerant cells may be a suitable treatment for industrial effluents in the breakdown of azo dyes.


2009 ◽  
Vol 60 (6) ◽  
pp. 1565-1574 ◽  
Author(s):  
S. Nilratnisakorn ◽  
P. Thiravetyan ◽  
W. Nakbanpote

Textile wastewater is contaminated by reactive dye causing unattractive levels of wastewater color, high pH and high salt content when discharged into public water systems. Decolorization of textile wastewater by plant, phytoremediation, is an alternative, sustainable method which is suitable for long term operation. Narrow-leaved cattails are one species of wetland plant with efficiency for decolorizing and remediating textile wastewater. In addition, chemical oxygen demand (COD) can be lowered and dye residue can be removed. The plant also showed a good salt tolerance even after being exposed to a salt solution for 15 days. The narrow-leaved cattails were set up in a constructed wetland model with a vertical flow system operating from bottom to top for synthetic reactive dye wastewater (SRDW) removal. Narrow-leaved cattails could achieve the removal of SRDW at approximately 0.8 gSRDW m−2 day−1. Decolorization of SRDW by this plant was approximately 60%. The advantage of this method is that it is suitable for textile wastewater management and improvement of wetland. These plants could lower COD, remove dye, sodium and total dissolved solids (TDS) whereas other biological and chemical methods could not remove TDS and dye in the same time. These results suggested that the spongy cell structure of this plant has the ability to absorb large amounts of water and nutrients. Physico-chemical analysis revealed increasing amounts of sulfur, silicon, iron and calcium in the plant leafs and roots after exposure to wastewater. Proteins or amide groups in the plant might help in textile dye removal. Regarding decolorization, this plant accumulates dye in the intercellular space and still grows in this SRDW condition. Hence, it can be noted here that narrow-leaved cattails are efficient for textile dye wastewater treatment.


2012 ◽  
Vol 3 (1) ◽  
pp. 41-48 ◽  
Author(s):  
S. Sathian ◽  
G. Radha ◽  
V. Shanmugapriya ◽  
M. Rajasimman ◽  
C. Karthikeyan

Author(s):  
Amaia Menendez ◽  
Jose Ignacio Lombraña ◽  
Ana de Luis

AbstractSynthetic dyes are extensively used in textile dyeing, paper printing, colour photography, pharmaceuticals, food, cosmetics and other industries. In spite of their diversity there are a certain number of properties common to many dye compounds, such as aromatic constitution, chromophore groups and others. Similarly to other dyes and due to the formation of colour intermediates, in the case of Rhodamine 6G colour capacity is maintained in the initial steps of dye degradation. For this reason in the degradation of a dye it is necessary to distinguish between two processes that take place simultaneously: dye removal and decolourization. This study was conducted by using a water solution of 50 mg/L of Rhodamine 6G (Rh-6G), as a model of a dye wastewater, in the hydrogen peroxide/UV system. The kinetic model proposed in this paper for the removing of Rh- 6G is a sequential first-order reaction. This model describes acceptably the changes in two kinds of compound for a wide interval of H


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