scholarly journals Removal of Reactive Red Dye (Cibacron FN-R) from Synthetic Wastewater by Using Natural Substance

2019 ◽  
Vol 37 (2C) ◽  
pp. 209-213
Author(s):  
Safaa Al-Hussaini ◽  
Eman Mohammed ◽  
Abdul Hameed Al-Obaidy
Keyword(s):  
Synthetic Wastewater ◽  
Natural Substance ◽  
Red Dye

scholarly journals Synthesis, Characterization of Copper Metavanadate (CuV2O6) Nanostructures Via Hydrothermal Method and their Photocatalytic Performance

2018 ◽  
Vol 34 (3) ◽  
pp. 1263-1269
Author(s):  
S. Rajendra ◽  
Prasad Prasad ◽  
S. Srikantaswamy ◽  
K. Jagadish ◽  
M. R. Abhilash ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Photocatalytic Performance ◽  
High Efficiency ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Research Work ◽  
Morphological Properties ◽  
Synthetic Wastewater ◽  
Methyl Red ◽  
Red Dye

The nanostructures with different morphology have enormous applications in science and technology field, due to its vast advantages over normal materials. Here in, the research work has been carried out for the synthesis of novel nanostructures via hydrothermal method. The selection of nanomaterials was started with focus on the transition metal vanadates with high photocatalytic activity. The present work was carried out for the synthesis of copper metavanadates (CuV2O6) with different morphology like spherical and leaf like nanoparticle by hydrothermal method. The crystalinity and morphological properties were analyzed by using advanced instruments XRD and SEM respectively. Further, the photocatalytic properties of synthesized nanoparticle was investigated by made treatment with synthetic wastewater which contains the methyl red dye and heavymetals in it. The treatment was carried out for the different concentration of catalyst, methyl red dye, and heavymetals. However the effect of concentration of catalyst, pH, Dye concentration and heavymetal concentration was also investigated and founded the optimum concentration for the dye degradation and heavy metal removal simultaneously. This copper metavanadate with different morphology has high photocatalytic performance and the results were obtained with high efficiency.

scholarly journals Fabrication of Electro Spun Nylon6.12/Chitosan @PES Nanofibrous UF Membrane Towards Dyes Rejection From Synthetic Wastewater

2021 ◽  
Author(s):  
Eman Omar Taha ◽  
Mahmoud F. Mubarak ◽  
Hanaa Selim ◽  
Rania Elshypany
Keyword(s):  
Composite Membrane ◽  
Separation Efficiency ◽  
Synthetic Wastewater ◽  
Operating Pressure ◽  
Electrospinning Technique ◽  
Alizarin Red ◽  
Low Frequencies ◽  
Pes Membrane ◽  
Dye Rejection ◽  
Red Dye

Abstract Nanofibrous ultrafilter of nylon6.12/chitosan@Poly ether sulfone (N6.12/CS@PES) membrane were fabricated by chitosan casted PES membrane and coated with nylon6.12 thin layer using electrospinning technique for dye rejection. The membranes were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). Both of cationic and anionic dye rejection capability of the membrane was investigated for basic blue dye41 and alizarin red dye, respectively, as dyes were investigated with respect to solution parameters (pH, Zeta potential, pressure, dye concentration and different electrolyte) through filtration system. In addition, the effect of parameters and their possible interactions on dye rejection have been studied. An enhanced hydrophilicity and antifouling property was observed for the composite membrane as compared to pristine PES ultrafiltration membranes. The results show that the rejection of dyes increase with the decreases of operating pressure. At optimum condition of PH=7, and pressure=10 bar and concentration=220 mg/L, the rejection ratio improves from 75.3 to 99.5% and 71 to 82% for basic blue dye41 and alizarin red dye, respectively. Dye rejection are not changed after 7 cycles and not change separation efficiency of dyes. The mechanical and electrical properties were investigated for PES and N6.12 / CS@PES composite membrane. The results showed that the N6.12 / CS@PES composite membrane exhibited the highest mechanical properties and the highest dielectric constant especially at low frequencies with low dielectric loss. This study demonstrated that the developed nanofibrous composite membrane were successfully characterized and proved to be a good rejection for dyes from aqueous solutions.

Removal of a disperse red dye from synthetic wastewater by chemical coagulation and continuous electrocoagulation. A comparative study

Desalination ◽  
2011 ◽  
Vol 272 (1-3) ◽  
pp. 246-253 ◽  
Author(s):  
B. Merzouk ◽  
B. Gourich ◽  
K. Madani ◽  
Ch. Vial ◽  
A. Sekki
Keyword(s):  
Comparative Study ◽  
Synthetic Wastewater ◽  
Chemical Coagulation ◽  
Red Dye

Kinetic, isothermal and thermodynamic investigation on electrocoagulation of Congo Red dye removal from synthetic wastewater using aluminium electrodes

2018 ◽  
Vol 122 ◽  
pp. 339-350 ◽  
Author(s):  
M.S. Ramya Sankar ◽  
V. Sivasubramanian ◽  
E.V. Vidya Vijay ◽  
M. Jerold ◽  
J. Kanimozhi ◽  
...  
Keyword(s):  
Congo Red ◽  
Dye Removal ◽  
Synthetic Wastewater ◽  
Thermodynamic Investigation ◽  
Congo Red Dye ◽  
Red Dye

scholarly journals Toxicity Reduction of Reactive Red Dye-238 Using Advanced Oxidation Process by Solar Energy

2017 ◽  
Vol 14 (3) ◽  
pp. 516-523
Author(s):  
Baghdad Science Journal
Keyword(s):  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Ph Value ◽  
Advanced Oxidation ◽  
Treatment Method ◽  
Synthetic Wastewater ◽  
H2o2 Concentration ◽  
Efficient Treatment ◽  
Toxicity Reduction ◽  
Red Dye

Decolorization of red azo dye (Cibacron Red FN-R) from synthetic wastewater has been investigated as a function of solar advanced oxidation process. The photocatalytic activity using ZnO as a photocatalysis has been estimated. Different parameters affected the removal efficiency, including pH of the solution, initial dye concentration and H2O2 concentration were evaluated to find out the optimum value of these parameters. The results proved that the optimal pH value was 8 and the most efficient H2O2 concentration was 100mg/L. Toxicity reduction percent for effluent solution was also monitored to assess the degradation process. This treatment method was able to strongly reduce the color and toxicity of reactive red dye-238 to about (99 and 80) % respectively. It can be concluded, from these experiments, that the using of ZnO as a photocatalysis was exhibited as economical and efficient treatment method to remove reactive red dye-238 from aqueous solution.

Perforating collagenosis due to red dye in a tattoo

1998 ◽  
Vol 139 (5) ◽  
pp. 926-927 ◽  
Author(s):  
Bedlow ◽  
Wong ◽  
Cook ◽  
Marsden
Keyword(s):  
Red Dye

An effective method for determining the retention and distribution of cellulose nanofibrils in paper handsheets by dye labeling

TAPPI Journal ◽  
2018 ◽  
Vol 17 (03) ◽  
pp. 157-164 ◽  
Author(s):  
Shengdan Wang ◽  
Wenhua Gao ◽  
Kefu Chen ◽  
Jinsong Zeng ◽  
Jun Xu ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Congo Red ◽  
Kraft Pulp ◽  
Cellulose Nanofibrils ◽  
Standard Curve ◽  
Congo Red Dye ◽  
Mechanical Disintegration ◽  
Softwood Kraft Pulp ◽  
White Water ◽  
Red Dye

Cellulose nanofibrils (CNF) were prepared by cellulase in conjunction with mechanical disintegration from the bleached softwood kraft pulp and labelled by Congo red dye. The labelled CNF were used to investigate the retention and distribution of CNF in paper handsheets. The retention of the labelled CNF was obtained by measuring the absorbance of white water using an ultraviolet-visible spectrophotometer. The results showed that this method for measuring the retention was rapid, feasible, and sensitive, owing to the high correlation coefficient R2 (0.9993) of the standard curve. The labelled CNF showed even distribution in paper handsheets. The colorimetric values of paper handsheets were explored with a residual ink analyzer.

Removal of lead by sulfate-reducing bacteria in anaerobic continuous stirred tank reactors

2016 ◽  
Vol 14 (3) ◽  
pp. 557-561
Author(s):  
Nguyễn Thị Yên ◽  
Kiều Thị Quỳnh Hoa
Keyword(s):  
Sulfate Reducing Bacteria ◽  
Stirred Tank ◽  
Synthetic Wastewater ◽  
Terminal Electron Acceptor ◽  
Stirred Tank Reactors ◽  
Sulfate Reducing ◽  
Sulfide Production ◽  
Continuous Stirred Tank ◽  
Continuous Stirred Tank Reactors ◽  
Reducing Bacteria

Lead contaminated wastewater negatively impacts to living organisms as well as humans. In recent years, a highly promising biological process using the anaerobic production of sulfide ions by sulfate-reducing bacteria has presented itself as an alternative option for the removal of lead. This process is based on microbial utilization of electron donors, such as organic compounds (carbon sources), and sulfate as the terminal electron acceptor for sulfide production. The biogenic hydrogen sulfide reacts with dissolved heavy metals to form insoluble metal sulfide precipitates Removal of lead by an enriched consortium of sulfate-reducing bacteria (DM10) was evaluated sulfate reduction, sulfide production and lead precipitation. Four parallel anaerobic continuous stirred tank reactors (CSTR, V = 2L) (referred as R1 - R4) were fed with synthetic wastewater containing Pb2+ in the concentrations of 0, 100, 150 and 200 mg L-1 of lead and operated with a hydraulic retention time of 5 days for 40 days. The loading rates of each metal in R1- R4 were 0, 20, 30 and 40 mg L-1 d-1, respectively. The results showed that there was no inhibition of SRB growth and that lead removal efficiencies of 99-100% for Pb2+ were achieved in R2 (100 mg L-1) and R3 (150 mg L-1) throughout the experiment. For the highest lead concentration of  200 mg L-1, a decrease in efficiency of removal (from 100 to 96%) was observed at the end of the experiment. The obtained result of this study might help for a better control operation and performance improvements of reactors.

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