Application of integrated ozone and granular activated carbon for decolorization and chemical oxygen demand reduction of vinasse from alcohol distilleries

2016 ◽  
Vol 170 ◽  
pp. 28-36 ◽  
Author(s):  
Mojtaba Hadavifar ◽  
Habibollah Younesi ◽  
Ali Akbar Zinatizadeh ◽  
Faezeh Mahdad ◽  
Qin Li ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Chemical Oxygen Demand ◽  
Oxygen Demand ◽  
Granular Activated Carbon ◽  
Demand Reduction ◽  
Chemical Oxygen Demand Reduction

scholarly journals The Effect of Magnesium Sulfate Addition on Volatile Solid Destruction and Chemical Oxygen Demand Reduction of Food Waste Anaerobic Digestion

2019 ◽  
Vol 10 (8) ◽  
pp. 1602
Author(s):  
Khansa Luqyana Hapsari ◽  
Firyal Tharifa ◽  
Setyo Sarwanto Moersidik ◽  
Sandyanto Adityosulindro ◽  
Cindy Rianti Priadi
Keyword(s):  
Anaerobic Digestion ◽  
Chemical Oxygen Demand ◽  
Magnesium Sulfate ◽  
Food Waste ◽  
Oxygen Demand ◽  
Volatile Solid ◽  
Demand Reduction ◽  
Chemical Oxygen Demand Reduction

Coupling of anodic oxidation and adsorption by granular activated carbon for chemical oxygen demand removal from 4,4′-diaminostilbene-2,2′-disulfonic acid wastewater

2010 ◽  
Vol 62 (11) ◽  
pp. 2669-2677 ◽  
Author(s):  
Lizhang Wang ◽  
Yuemin Zhao
Keyword(s):  
Activated Carbon ◽  
Chemical Oxygen Demand ◽  
Residence Time ◽  
Applied Voltage ◽  
Oxygen Demand ◽  
Granular Activated Carbon ◽  
Cod Removal ◽  
Disulfonic Acid ◽  
High Concentration ◽  
Solution Ph

Experiments were performed to reduce chemical oxygen demand (COD) from 4,4′-diaminostilbene-2,2′-disulfonic (DSD) acid manufacturing wastewater using electrochemical oxidation coupled with adsorption by granular activated carbon. The COD removal is affected by the residence time and applied voltage. When the residence time is increased, lower value of COD effluent could be obtained, however, the average current efficiency (ACE) decreased rapidly, and so does the applied voltage. In addition, aeration could effectively enhance COD removal efficiency and protect anodes from corrosion. Furthermore, the acidic condition is beneficial to the rapid decrease of COD and the values of pH effluent are independent of the initial solution pH. The optimization conditions obtained from these experiments are applied voltage of 4.8 V, residence time of 180 min and air–liquid ratio of 4.2 with the COD effluent of about 690 mg L−1. In these cases, the ACE and energy consumption are 388% and 4.144 kW h kg−1 COD, respectively. These perfect results from the experiments illustrate that the combined process is a considerable alternative for the treatment of industrial wastewater containing high concentration of organic pollutants and salinity.

Physico-chemical treatment of Merida landfill leachate for chemical oxygen demand reduction by coagulation

2005 ◽  
Vol 23 (6) ◽  
pp. 560-564 ◽  
Author(s):  
Roger I. Méndez-Novelo ◽  
Elba R. Castillo-Borges ◽  
María R. Sauri-Riancho ◽  
Carlos A. Quintal-Franco ◽  
Germán Giacomán-Vallejos ◽  
...  
Keyword(s):  
Chemical Oxygen Demand ◽  
Landfill Leachate ◽  
Chemical Treatment ◽  
Oxygen Demand ◽  
Physico Chemical ◽  
Demand Reduction ◽  
Chemical Oxygen Demand Reduction
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