Enhanced electrochemical oxidation of synthetic dyeing wastewater using SnO 2 -Sb-doped TiO 2 -coated granular activated carbon electrodes with high hydroxyl radical yields

2016 ◽  
Vol 220 ◽  
pp. 276-284 ◽  
Author(s):  
Xinyang Li ◽  
Yue Wu ◽  
Wei Zhu ◽  
Fangqing Xue ◽  
Yi Qian ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Hydroxyl Radical ◽  
Electrochemical Oxidation ◽  
Granular Activated Carbon ◽  
Carbon Electrodes ◽  
Dyeing Wastewater

scholarly journals Combination of Ozonation and Adsorption Using Granular Activated Carbon (GAC) for Tofu Industry Wastewater Treatment

2018 ◽  
Vol 18 (4) ◽  
pp. 600
Author(s):  
Eva Fathul Karamah ◽  
Ika Putri Adripratiwi ◽  
Linggar Anindita
Keyword(s):  
Activated Carbon ◽  
Hydroxyl Radical ◽  
Waste Treatment ◽  
Environmental Pollutants ◽  
Liquid Waste ◽  
Granular Activated Carbon ◽  
Degradation Process ◽  
Adsorption Method ◽  
Ozonation Process ◽  
Industry Wastewater

Tofu industry wastewater is one of the environmental pollutants that need more effective treatment. Ozonation and adsorption method is known to have the capability to oxidize organic compound in wastewater. Adsorption is done by using granular activated carbon (GAC) as an adsorbent to increase tofu wastewater degradation process by adsorbing organic materials and increasing production of hydroxyl radical as the main oxidizing agent. This research is carried out to evaluate the performance of ozonation, adsorption, and combination of both in processing tofu wastewater. To evaluate the significance of ozone dosage and amount of GAC used, these variations are varied which are 60, 111, and 155 mg/h of ozone dosage and 50, 75, and 100 g of the amount of GAC used. Parameters of the process are organic substances of tofu wastewater such as COD, TSS, and pH. The measurements are being done using a spectrophotometer, colorimeter, and pH meter. The outcome of this research is to provide an alternative method in the liquid waste treatment of the tofu industry and the processed wastewater to meet the environmental quality standards. The more ozone and the more quantity of GAC used, the higher the quantity of hydroxyl radicals formed. Addition of GAC in the ozonation process results in more than 100% increase in hydroxyl radical production. Combination of ozonation and adsorption is able to remove 377.12 mg/L of COD and 26 mg/L of TSS.

Activated carbon electrodes: Electrochemical oxidation coupled with desalination for wastewater treatment

Chemosphere ◽  
2015 ◽  
Vol 125 ◽  
pp. 205-211 ◽  
Author(s):  
Feng Duan ◽  
Yuping Li ◽  
Hongbin Cao ◽  
Yi Wang ◽  
John C. Crittenden ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Electrochemical Oxidation ◽  
Carbon Electrodes

Thermal stability and decomposition of perfluoroalkyl substances on spent granular activated carbon

2020 ◽  
Author(s):  
Feng Xiao ◽  
Bin Yao ◽  
Pavankumar Challa Sasi ◽  
Svetlana Golovko ◽  
Dana Soli ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Perfluoroalkyl Substances

Cost-effective water treatment of polluted surface water by using direct filtration and granular activated carbon filtration

2002 ◽  
Vol 2 (1) ◽  
pp. 233-240 ◽  
Author(s):  
J. Cromphout ◽  
W. Rougge
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Treatment Process ◽  
Treatment Plant ◽  
Granular Activated Carbon ◽  
Cost Effective ◽  
Water Treatment Plant ◽  
Direct Filtration ◽  
Carbon Filtration ◽  
Effective Water

In Harelbeke a Water Treatment Plant with a capacity of 15,000 m3/day, using Schelde river water has been in operation since April 1995. The treatment process comprises nitrification, dephosphatation by direct filtration, storage into a reservoir, direct filtration, granular activated carbon filtration and disinfection. The design of the three-layer direct filters was based on pilot experiments. The performance of the plant during the five years of operation is discussed. It was found that the removal of atrazin by activated carbon depends on the water temperature.

REPRODUCIBILITY OF GRANULAR ACTIVATED CARBON FOR DYE TRACER DETECTION

2017 ◽  
Author(s):  
Zachary L. Oretsky ◽  
◽  
Daniel Lehrmann ◽  
Geary M. Schindel
Keyword(s):  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Dye Tracer
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