Blocking Mechanism of Ultrafiltration and Micellar-Enhanced Ultrafiltration Membrane for Dye Removal from Model Waste Water

2017 ◽  
Vol 23 (3) ◽  
pp. 2598-2600 ◽  
Author(s):  
Nita Aryanti ◽  
Fatikhatul K. Ika Sandria ◽  
Dyah Hesti Wardhani
Keyword(s):  
Waste Water ◽  
Dye Removal ◽  
Ultrafiltration Membrane ◽  
Micellar Enhanced Ultrafiltration ◽  
Blocking Mechanism

A Photo-Fenton Nanocomposite Ultrafiltration Membrane for Enhanced Dye Removal with Self-Cleaning Properties

2021 ◽  
Author(s):  
Rengyu Yue ◽  
Bahareh Raisi ◽  
Jalal Rahatinejad ◽  
Zhibin Ye ◽  
Benoit Barbeau ◽  
...  
Keyword(s):  
Dye Removal ◽  
Ultrafiltration Membrane ◽  
Self Cleaning

Preparation and characterization of Al3+-doped TiO2 tight ultrafiltration membrane for efficient dye removal

2020 ◽  
Vol 46 (4) ◽  
pp. 4679-4689 ◽  
Author(s):  
Xin Huang ◽  
Chao Tian ◽  
Hang Qin ◽  
Wenming Guo ◽  
Pengzhao Gao ◽  
...  
Keyword(s):  
Dye Removal ◽  
Ultrafiltration Membrane ◽  
Doped Tio2

New low-cost ultrafiltration membrane made from purified natural clays for direct Red 80 dye removal

2019 ◽  
Vol 7 (4) ◽  
pp. 103268 ◽  
Author(s):  
H. Ouaddari ◽  
A. Karim ◽  
B. Achiou ◽  
S. Saja ◽  
A. Aaddane ◽  
...  
Keyword(s):  
Dye Removal ◽  
Low Cost ◽  
Ultrafiltration Membrane ◽  
Natural Clays

scholarly journals Micellar-Enhanced Ultrafiltration Using a Plant-Derived Surfactant for Dye Separation in Wastewater Treatment

Membranes ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 220
Author(s):  
Nita Aryanti ◽  
Aininu Nafiunisa ◽  
Tutuk Djoko Kusworo ◽  
Dyah Hesti Wardhani
Keyword(s):  
Membrane Fouling ◽  
Surfactant Micelle ◽  
Natural Surfactant ◽  
Cake Formation ◽  
Natural Surfactants ◽  
Environmentally Safe ◽  
Micellar Enhanced Ultrafiltration ◽  
Blocking Mechanisms ◽  
Remazol Red ◽  
Blocking Mechanism

Micellar-enhanced ultrafiltration (MEUF) is one of several membrane methods used for the removal of trace organic pollutants from aqueous streams. In this process, a surfactant is added to a polluted aqueous solution at a concentration higher than its critical micelle concentration (CMC). Unlike synthetic surfactants, natural surfactants, from plants such as the saponin, while ecologically adaptable as surfactants in MEUF systems, are also biodegradable, renewable, and environmentally safe. This study applied Sapindus rarak extract as the natural surfactant in MEUF for Remazol dye separation. It was found that the presence of Sapindus rarak extract increased separation of Remazol red and blue dyes by up to 97.02% and 99.42%, respectively. However, the addition of surfactant decreased permeate fluxes due to membrane fouling and concentration polarization. In addition, loading micelle (Lm), representing the performance of the surfactant micelle for dye separation, as well as the blocking mechanism, was investigated. Lm was found to be in the range of 0.002–0.068 mM dyes/mM saponin. Ultrafiltration blocking mechanisms, as confirmed by the Hermia model, were: standard blocking, for cases without the addition of surfactant; cake formation, for cases with surfactant below the CMC; and complete blocking, for cases with surfactant above the CMC.

Removal of phenol from synthetic waste water using Gemini micellar-enhanced ultrafiltration (GMEUF)

2012 ◽  
Vol 235-236 ◽  
pp. 128-137 ◽  
Author(s):  
Wenxiang Zhang ◽  
Guohe Huang ◽  
Jia Wei ◽  
Huiqin Li ◽  
Rubing Zheng ◽  
...  
Keyword(s):  
Waste Water ◽  
Micellar Enhanced Ultrafiltration

scholarly journals A Cost-Efficient Charcoal-Based Adsorbent for Waste Water Treatment and Dye Removal

2019 ◽  
Vol 9 (1S4) ◽  
pp. 759-765
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Manihot Esculenta ◽  
Moringa Oleifera ◽  
Carica Papaya ◽  
Dye Removal ◽  
Waste Water Treatment ◽  
Kinetic Studies ◽  
Three Samples ◽  
Cost Efficient

Activated charcoal derived from Moringa oleifera, Manihot esculanta, Carica papaya are efficient for waste water treatment and dye removal. Adsorption techniques are used to remove the non-bio degradable pollutants. The produced carbon was exemplified using Scanning Electron Microscopy and Fourier Infrared spectroscopy. The discoloration rate was higher at an optimum pH of 5 for all three samples and at an adsorbent dosage of 0.02g/100ml of effluent and the equilibrium was obtained in 10 minutes. Thus, the adsorbents have the prospective for realistic applications. Adsorption isotherms was evaluated by the Freundlich, Langmuir isotherms and higher linear attenuation coefficients showed that the experimental data shows a better fit to Freundlich model (R2 = 0.9987) for Manihot esculenta, Langmuir model for Carica papaya and Moringa oleifera (R2 = 0.9931) (R2 = 0.9959). Kinetic studies were also executed for all the adsorbents and for Manihot esculenta data en suite well to pseudo-second order model (R2 = 0.9966), for Carica papaya (R2 = 0.9986) and for Moringa oleifera investigational data en suite well with Pseudo-first order (R2 = 0.9916) respectively.

scholarly journals Response Surface Optimization for Waste Water from Textile Industry

2021 ◽  
Vol 9 (9) ◽  
pp. 165-171
Author(s):  
Jaspreet Kaur
Keyword(s):  
Waste Water ◽  
Response Surface ◽  
Textile Industry ◽  
Dye Removal ◽  
Kinetic Studies ◽  
Cod Removal ◽  
Kinetic Constants ◽  
Response Parameter ◽  
Response Surface Optimization ◽  
Water Response

Abstract: The findings of the study showed that at optimum conditions of the operating parameters i.e., current density = 14.17 mA/cm2 , t = 102 min, and pH = 6.25, 63.41% of COD removal, 90.93% of dye removal and 0.0035 kWh/kg of energy consumption, were observed. Kinetic studies showed that EC based treatment of STW followed first order kinetics and the kinetic constants at 30°C for each response parameter i.e., % COD removal and % dye removal were 0.0205 min-1 and 0.0097 min-1 , respectively. Similarly, at 50°C the kinetic constants for % COD removal and % dye removal were 0.037 min-1 and 0.011 min-1 , respectively. Further, it was also observed that the amount of Al in the treated STW, sludge and scum was observed to be 25.16 mg/l, 0.50778g and 0.06006 g, respectively. Keywords: Waste water, Response Surface plots and optimization

Sign in / Sign up

Export Citation Format

Share Document