Feasibility and optimisation of a batch mode capacitive deionization (BM CDI) process for textile cationic dyes (TCD) removal and recovery from industrial wastewaters

2018 ◽  
Vol 205 ◽  
pp. 721-727 ◽  
Author(s):  
Hasna Senoussi ◽  
Kamel - Eddine Bouhidel
Keyword(s):  
Cationic Dyes ◽  
Capacitive Deionization ◽  
Batch Mode ◽  
Industrial Wastewaters ◽  
Removal And Recovery

scholarly journals CHARACTERIZATION AND POTENTIAL SUITABILITY OF SIMAROUBA GLAUCA SEED SHELL LIGNOCELLULOSIC BIOMASS AS ADSORBENT OF BASIC DYES FROM AQUEOUS SOLUTIONS

2021 ◽  
Vol 55 (5-6) ◽  
pp. 705-722
Author(s):  
JEYAGOWRI BALAKRISHNAN ◽  
YAMUNA RANGAIYA THIAGARAJAN
Keyword(s):  
Aqueous Solutions ◽  
Cost Effective ◽  
Second Order ◽  
Cationic Dyes ◽  
X Ray Diffraction ◽  
Experimental Conditions ◽  
Batch Mode ◽  
Pseudo Second Order ◽  
Simarouba Glauca ◽  
Shell Powder

The present study investigates the potential of Simarouba glauca seed shell powder as a cost-effective adsorbent for the removal of the cationic dyes Malachite green (MG), Methylene blue (MB) and Rhodamine B (RB) from aqueous solutions. The adsorbent was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray diffraction (XRD), as well as by Brunauer–Emmett–Teller (BET) and elemental (CHNS) analyses. Batch mode adsorption studies were carried out varying the experimental conditions, such as initial dye concentration and contact time, adsorbent dose, pH and particle size, in order to assess the adsorbent capacity for the removal of cationic dyes from wastewater. The experimental data were analysed using the Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherms. The data fitted well the Langmuir model for the dyes studied. Kinetic data were analysed using the pseudo-first order, pseudo-second order, intraparticle diffusion and Boyd models. The experimental results showed that the pseudo-second order model fitted well.

Ammonium removal and recovery from real digestate wastewater by a modified operational method of membrane capacitive deionization unit

2019 ◽  
Vol 215 ◽  
pp. 1415-1423 ◽  
Author(s):  
Hacer Sakar ◽  
Isıl Celik ◽  
Cigdem Balcik-Canbolat ◽  
Bulent Keskinler ◽  
Ahmet Karagunduz
Keyword(s):  
Capacitive Deionization ◽  
Operational Method ◽  
Ammonium Removal ◽  
Removal And Recovery

Capacitive deionization for nutrient recovery from wastewater with disinfection capability

2018 ◽  
Vol 4 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Zheng Ge ◽  
Xi Chen ◽  
Xia Huang ◽  
Zhiyong Jason Ren
Keyword(s):  
Nutrient Recovery ◽  
Capacitive Deionization ◽  
Phosphate Salts ◽  
Removal And Recovery

This study demonstrates that capacitive deionization can be effectively used for the removal and recovery of dominant nitrogen (ammonium) and phosphorus (phosphate salts) species present in wastewater.

scholarly journals Faradaic Reactions in Water Desalination by Batch-Mode Capacitive Deionization

2016 ◽  
Vol 3 (5) ◽  
pp. 222-226 ◽  
Author(s):  
Di He ◽  
Chi Eng Wong ◽  
Wangwang Tang ◽  
Peter Kovalsky ◽  
T. David Waite
Keyword(s):  
Water Desalination ◽  
Capacitive Deionization ◽  
Batch Mode

scholarly journals Biosorption of cationic dyes from aqueous solution by Water hyacinth roots

2013 ◽  
Vol 14 (1) ◽  
pp. 24-31
Keyword(s):  
Methylene Blue ◽  
Malachite Green ◽  
Water Hyacinth ◽  
Cationic Dyes ◽  
Solution Ph ◽  
Batch Mode ◽  
Biosorption Capacity ◽  
Pseudo Second Order ◽  
Increasing Temperature ◽  
Spontaneous Reaction

Water hyacinth Eichhornia crassipes was found to have biosorption capacity for cationic dyes, malachite green and methylene blue from aqueous solutions. To evaluate the biosorption capacity and characteristics, the effect of solution pH, initial dye concentration, temperature, dose of biosorbent loading, contact time and shaking rate were investigated in a batch mode. Biosorption was increased with the increasing temperature for both studied dyes. The Langmuir and Freundlich adsorption models were used for mathematical description of the sorption equilibrium. Equilibrium data was fitted well to the Langmuir model in the studied concentrations (1-200 mg L-1) at 293 and 313 K. Based on the Langmuir isotherm plots the maximum biosorption capacity values were calculated to be 44.64 mg g-1 for malachite green and 42.55 mg g-1 for methylene blue at 313 K. Various thermodynamic parameters such as ΔGo, ΔHo, and ΔSo were evaluated with results indicating that this system was an endothermic spontaneous reaction and kinetically suited to pseudo-second-order model.

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