Preparation and characterization of cassava stem biochar for mixed reactive dyes removal from simulated effluent

2020 ◽  
Vol 189 ◽  
pp. 440-451 ◽  
Author(s):  
Anand Navya ◽  
Sellakutti Nandhini ◽  
Selvaraju Sivamani ◽  
Gajendiran Vasu ◽  
Natesan Sivarajasekar ◽  
...  
Keyword(s):  
Reactive Dyes ◽  
Simulated Effluent ◽  
Cassava Stem ◽  
Cassava Stem Biochar ◽  
Dyes Removal

Tea Waste: A New Adsorbent for the Removal of Reactive Dyes from Textile Wastewater

2013 ◽  
Vol 803 ◽  
pp. 26-29 ◽  
Author(s):  
Antonio Zuorro ◽  
Maria Laura Santarelli ◽  
Roberto Lavecchia
Keyword(s):  
Low Cost ◽  
Dye Adsorption ◽  
Reactive Dyes ◽  
Textile Wastewater ◽  
Tea Leaves ◽  
Thermally Activated ◽  
Reactive Blue 19 ◽  
Reactive Green 19 ◽  
Spent Tea Leaves

Spent tea leaves (STL), a valueless waste produced during the manufacturing of tea beverages, were investigated as a potential low-cost adsorbent for the removal of the azo dyes Reactive Blue 19 (RB19), Reactive Red 120 (RR 120), Reactive Violet 5 (RV5) and Reactive Green 19 (R19) from wastewater. Untreated STL showed very low removal efficiency (< 7%), while a significant increase in dye adsorption was observed when they were thermally activated. Heating STL to 300 °C for 1 hour resulted in removal efficiencies ranging from 68.5 to 98.4%. Characterization of the waste by FTIR and TG/DTA indicated that major structural and/or chemical changes of the cellulose and hemicellulose components of STL occurred during heating.

Characterization of a simple bacterial consortium for effective treatment of wastewaters with reactive dyes and Cr(VI)

Chemosphere ◽  
2007 ◽  
Vol 67 (4) ◽  
pp. 826-831 ◽  
Author(s):  
Nur Koçberber Kılıç ◽  
Jeppe Lund Nielsen ◽  
Meral Yüce ◽  
Gönül Dönmez
Keyword(s):  
Effective Treatment ◽  
Reactive Dyes ◽  
Bacterial Consortium

Application of mesoporous magnetic carbon composite for reactive dyes removal: Process optimization using response surface methodology

2016 ◽  
Vol 33 (10) ◽  
pp. 2878-2890 ◽  
Author(s):  
Ahmad Jonidi Jafari ◽  
Babak Kakavandi ◽  
Roshanak Rezaei Kalantary ◽  
Hamed Gharibi ◽  
Anvar Asadi ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Process Optimization ◽  
Reactive Dyes ◽  
Carbon Composite ◽  
Removal Process ◽  
Magnetic Carbon ◽  
Dyes Removal

scholarly journals Removal of Reactive Dyes by Electro Coagulation Process from Aqueous Solution

2020 ◽  
Vol 26 (2) ◽  
pp. 14-28
Author(s):  
Zahraa A Sadoon ◽  
Mohanad J. M-Ridha
Keyword(s):  
Aqueous Solution ◽  
Removal Efficiency ◽  
Room Temperature ◽  
Reactive Dyes ◽  
Nacl Concentration ◽  
The World ◽  
Aluminum Electrodes ◽  
Electro Coagulation ◽  
The Impact ◽  
Dyes Removal

The presence of dyes in wastewater has become a major issue all over the world. The discharge of dyes in the environment is concerned for both toxicological and esthetical reasons. In this study, the removal of dyes from aqueous solution by electrocoagulation using aluminum electrodes as cathode and anode were investigated with the electrocoagulation cell of 1litter. The study included: the impact of various operating parameters on the dyes removal efficiency like pH, NaCl concentration, distance between electrodes, voltage, initial dyes concentration and type of electrodes. The dye (congo red) concentrations were (50, 100, 150, and 200 ppm), stirring speed was 120 rpm at room temperature. pH used was maintained constant. The impact of voltage values was chosen as 6, 10, and 14 Volts. On increasing voltage dyes, removals increased significantly. The higher removal efficiency of dyes (99.9%) was achieved at (30) minutes for (Al/Al) electrodes at pH 6.5-7 and voltage 14 Volts. The results showed that the best amount of sodium chloride was found to be 600 ppm in dyes, voltage of 14 Volts, and best gap between the electrodes as 0.5 cm.

STUDIES REGARDING ADVANCED PROCESSES USED FOR REACTIVE DYES REMOVAL FROM TEXTILE EFFLUENTS

2009 ◽  
Vol 8 (5) ◽  
pp. 1045-1051 ◽  
Author(s):  
Daniela Cailean ◽  
Carmen Teodosiu ◽  
Florin Brinza
Keyword(s):  
Reactive Dyes ◽  
Textile Effluents ◽  
Dyes Removal
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