Potato Starch as a Coagulant for Dye Removal from Textile Wastewater

2015 ◽  
Vol 226 (8) ◽  
Author(s):  
Muhammad Shahzad Zafar ◽  
Muhammad Tausif ◽  
Muhammad Mohsin ◽  
Syed Waqas Ahmad ◽  
Muhammad Zia-ul-Haq
Keyword(s):  
Dye Removal ◽  
Potato Starch ◽  
Textile Wastewater

scholarly journals Optimization of dye removal from textile wastewater using activated carbon from sawdust

2018 ◽  
Vol 15 (1) ◽  
pp. 26 ◽  
Author(s):  
O.A.A. Eletta ◽  
S.I. Mustapha ◽  
O.A. Ajayi ◽  
A.T. Ahmed
Keyword(s):  
Activated Carbon ◽  
Dye Removal ◽  
Textile Wastewater

scholarly journals Bioremediation of Some Reactive Dyes Commonly used in Fabric Re-dyeing by Chlorella vulgaris

2021 ◽  
pp. 10-19
Author(s):  
Zainab M. Sani ◽  
Aisha S. Dalhatu ◽  
Baha’uddeen S. Adam ◽  
Kasim Mohammed ◽  
Yusuf Y. Muhammad ◽  
...  
Keyword(s):  
Chlorella Vulgaris ◽  
Dye Removal ◽  
Statistical Significance ◽  
Reactive Dyes ◽  
Basal Medium ◽  
Textile Wastewater ◽  
Cost Effective ◽  
P Value ◽  
Wastewater Samples ◽  
Reactive Green 19

Aim: The work was aimed at assessing the potential of Chlorella vulgaris in remediation of reactive dyes. Place and Duration of Study: Department of Biological Sciences, Department of Plant Biology and Department of Biochemistry, Bayero University, Kano, Nigeria, between January 2019 and December 2019. Methodology: Wastewater containing individual reactive dyes: reactive red 198 (RR198), reactive yellow 176 (RY176), reactive green 19 (RG19), reactive orange 122 (RO122), reactive red 195 (RR195) and reactive violet 1 (RV1) were collected from a local fabric re-dyeing pit at Kofar Na’isa, Kano, Nigeria. The green microalga C. vulgaris was cultured in Bold Basal medium (BBM) at 30 ± 2°C and subjected to adsorption and decolourization assays of the dyes. Results: The highest dye removal efficiency by enzymatic action was recorded after 48 hours, while that for the biomass adsorption was at day 14, at pH 11.3 and temperature of 30°C. The percentage dye removal by adsorption and decolourization were within the ranges of 68.1-97.8% and 69.8-99.9% respectively. Dye removal decreased with increase in contact time until saturation is attained. Freundlich’s isotherm model was best fitted for the adsorption of the dyes with a strong linear correlation coefficient, R2 ranging from 0.954-0.811. There was a strong linear relationship and high statistical significance among the dyes for both decolourization and adsorption (P value; .01). Conclusion: Chlorella vulgaris was found to be effective in the removal of reactive dyes from textile wastewater samples. The results revealed C. vulgaris to be a cost-effective and eco-friendly biosorbent that can be used for the treatment of wastewaters containing toxic dyes.

scholarly journals Kinetic and equilibrium studies on the adsorption of Direct Red 23 dye from aqueous solution using montmorillonite nanoclay

2019 ◽  
Vol 55 (2) ◽  
pp. 132-144 ◽  
Author(s):  
Amir Hossein Mahvi ◽  
Arash Dalvand
Keyword(s):  
Dye Removal ◽  
Textile Wastewater ◽  
Order Kinetic ◽  
Equilibrium Studies ◽  
Batch System ◽  
Adsorbate Concentration ◽  
Pseudo Second Order ◽  
Direct Dye ◽  
Decreasing Ph ◽  
Montmorillonite Nanoclay

Abstract In this research, the adsorption of the Direct Red 23 dye from synthetic textile wastewater using nanoclay was studied in a batch system. The properties of nanoclay were investigated by scanning electron microscope, Fourier transform infrared, and EDX analysis. The specific surface area of the nanoclay was determined using Sear's method. The results revealed that with increasing adsorbent dose and contact time and decreasing pH, ionic strength, and adsorbate concentration, dye removal efficiency has increased. Nanoclay could remove 99.4% dye from the solution containing 50 mg/L dye at 30 min. The results indicated that dye removal followed pseudo-second-order kinetic (R2 > 0.99) and the Langmuir isotherm. According to the findings, nanoclay is an effective adsorbent for direct dye removal from wastewater.

Single and Binary System Dye Removal from Colored Textile Wastewater by a Dendrimer as a Polymeric Nanoarchitecture: Equilibrium and Kinetics

2010 ◽  
Vol 55 (11) ◽  
pp. 4660-4668 ◽  
Author(s):  
Niyaz Mohammad Mahmoodi ◽  
Bagher Hayati ◽  
Mokhtar Arami ◽  
Firoozmehr Mazaheri
Keyword(s):  
Binary System ◽  
Dye Removal ◽  
Textile Wastewater ◽  
Equilibrium And Kinetics

scholarly journals Removal of Dye and COD from Textile Wastewater Using AOP (UV/O3, UV/H2O2, O3/H2O2 and UV/H2O2/O3)

2018 ◽  
pp. 621-629 ◽  
Author(s):  
Mehrangiz Pourgholi ◽  
Reza Masoomi Jahandizi ◽  
Mohammadbagher Miranzadeh ◽  
Ommolbanin Hassan Beigi ◽  
Samaneh Dehghan
Keyword(s):  
Textile Industry ◽  
Dye Removal ◽  
Treatment Time ◽  
Reaction Times ◽  
Oxygen Demand ◽  
Advanced Oxidation ◽  
Textile Wastewater ◽  
Time Duration ◽  
Batch System ◽  
Industry Effluent

Introduction: Textile industry effluent is a complex sewage with chemical and color materials that is discharged into the environment and can cause serious problems. In this way using advanced oxidation methods and finding the best methods for removing color materials is necessary. An experimental method was done on Kashan textile industry effluent in laboratory scale and batch system. Material and Methods: Initially, optimal condition was obtained for O3 and H2O2 and followed by advanced oxidation methods (UV/O3, UV/H2O2, O3/H2O2 and UV/H2O2/O3) in different reaction times and pH on dye removal and COD (chemical oxygen demand) were determined. The results were compared with complex repetition method. Results: The results of this research showed that dye removal impact and COD based on the type of process and reaction time in UV/H2O2/O3 by 30 minute time duration, was the most effective method. UV/H2O2 in 10 minute time duration was the least effective method. COD and color removal, based on the process in UV/H2O2/O3 and pH = 6 was the most effective. The effect of UV/H2O2 and pH = 4 was the least efficient method on dye material removing. Results showed that the treatment time was effective on color removing (P < 0/001) statistically. Conclusion: It can be concluded that UV/H2O2/O3 was the most efficient on color removing process, compared to the others, due to co-incidence presence of strongly numerous oxidants and their aggravating effect through producing active hydroxyl radicals (OH˚).

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