Phenol degradation by microorganisms adsorbed on activated carbon

1985 ◽  
Vol 21-21 (1-2) ◽  
Author(s):  
H.M. Ehrhardt ◽  
H.J. Rehm
Keyword(s):  
Activated Carbon ◽  
Phenol Degradation

scholarly journals The Performance of Activated Carbon from Used Coffee Grounds Combined with Iron(III) Oxide under UV Light and Ultrasound for Phenol Degradation

2021 ◽  
Vol 10 (2) ◽  
pp. 148-158
Author(s):  
Layta Dinira ◽  
◽  
Barlah Rumhayati ◽  
Adam Wiryawan ◽  
◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Activated Carbon ◽  
Adsorption Capacity ◽  
Ultraviolet Light ◽  
Advanced Oxidation Process ◽  
Uv Light ◽  
Phenol Degradation ◽  
Coffee Consumption ◽  
Coffee Grounds ◽  
Phenol Decomposition

Coffee consumption over the past four years has continued to increase the amount of used coffee grounds. Usually, the used coffee grounds are simply thrown away. In fact, it can still be used as other materials that are more efficient and environmentally friendly, such as activated carbon. Activated carbon can be utilized as an adsorbent to adsorb compounds that are carcinogenic and potentially last a long time in the environment, such as phenols. Phenol decomposition through chemical can be carried out by Advanced Oxidation Process (AOP) which utilize hydroxyl radicals. This method used a catalyst such as iron(III) oxide under ultraviolet light. Phenol decomposition can also be carried out using ultrasound. This study presents the performance of the combination of activated carbon-catalyst with ultrasound in phenol decomposition. The results showed that the mass of the composite influenced the 0.1 M phenol degradation by the activated carbon–iron(III) oxide assisted with ultraviolet light, ultrasound, and 0.01 M hydrogen peroxide. for 45 minutes. The best degradation of phenol was obtained when 0.5 g adsorbent was applied with the adsorption capacity of phenol was 704.37 mg/g. The concentration of hydrogen peroxide also affects the decomposition of phenol in solution. From the variation of the hydrogen peroxide solution used (0.01; 0.02; and 0.03 M), the optimal concentration in degrading phenol was 0.01 M with the adsorption capacity of phenol was 393.70 mg/g.

Nanonization of g-C3N4with the assistance of activated carbon for improved visible light photocatalysis

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 66814-66821 ◽  
Author(s):  
Xiaoyun Chen ◽  
Dong-Hau Kuo ◽  
Dongfang Lu
Keyword(s):  
Activated Carbon ◽  
Visible Light ◽  
Phenol Degradation ◽  
Visible Light Photocatalysis ◽  
Excellent Activity

Activated carbon was used as a support to obtain a nano-sized g-C3N4/AC catalyst with excellent activity for phenol degradation under visible light.

Colloidal activated carbon as a highly efficient bifunctional catalyst for phenol degradation

2021 ◽  
Vol 414 ◽  
pp. 125474
Author(s):  
Ardie Septian ◽  
Alam Venugopal Narendra Kumar ◽  
Annamalai Sivasankar ◽  
Jiyeon Choi ◽  
Inseong Hwang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Phenol Degradation ◽  
Bifunctional Catalyst ◽  
Highly Efficient

scholarly journals Degradation Effect of UV Synergistic Biomass Activated Carbon Materials on Phenol Pollutants in Water

2021 ◽  
Vol 2079 (1) ◽  
pp. 012001
Author(s):  
Qi Zhang
Keyword(s):  
Activated Carbon ◽  
Influencing Factors ◽  
Removal Rate ◽  
Phenol Degradation ◽  
Polluted Water ◽  
Phenol Removal ◽  
Initial Concentration ◽  
Carbon Biomass ◽  
Degradation Effect ◽  
Degradation Ability

Abstract The purpose of the study is to purify the water containing phenol pollutants. The degradation effect of phenol pollutants in water is studied through the combined action of UV and biomass-activated carbon. First, the phenol solution is prepared in the laboratory to simulate the polluted water. Second, the phenol adsorption effects of UV synergistic biomass activated carbon, biomass activated carbon and ordinary industrial activated carbon under different influencing factors are compared by experiments. Finally, the results are analyzed and the conclusions are drawn. The results show that the UV synergistic biomass activated carbon has the strongest degradation ability for phenol, and the highest removal rate is 66.5% when the shaking time is 65 minutes. The adsorption ability of the industrial activated carbon for phenol is the worst. When the initial concentration of phenol is 25mg/L, the maximum phenol removal rate is 96.8%. The maximum phenol removal rate of biomass activa ted carbon appears in the initial concentration of phenol and the phenol removal rate is 60 mg/L. The reaction temperature has little effect on the phenol removal rate of UV synergistic biomass activated carbon and biomass activated carbon. The phenol removal ability of UV synergistic biomass activated carbon and biomass activated carbon reaches the highest when the dosage of activated carbon is 2.0 g, and the rates are 96.4% and 91.1%, respectively. When the pH of the solution is 7, the removal rate of UV synergistic biomass activated carbon reaches a maximum of 97%. When the pH of the solution is 6, the removal rate of biomass-activated carbon reaches the maximum. When the pH of the ordinary industrial activated carbon is 7, the removal rate is the maximum. Due to different influencing factors, UV synergistic biomass activated carbon has the strongest phenol degradation ability. This study provides a reference for the purification of polluted water.

Inhibition of Anaerobic Degradation of Phenolics and Methanogenesis by Coal Coking Wastewater

1987 ◽  
Vol 19 (1-2) ◽  
pp. 219-228 ◽  
Author(s):  
Phillip M. Fedorak ◽  
Steve E. Hrudey
Keyword(s):  
Activated Carbon ◽  
Methane Production ◽  
Anaerobic Degradation ◽  
Phenol Degradation ◽  
Methane Formation ◽  
Coking Wastewater ◽  
Polar Organic Compounds ◽  
Batch Cultures ◽  
Exhaustive Extraction ◽  
Methanogenic Fermentation

Dilutions of a wastewater containing 410 mg/l phenolics (by 4-aminoantipyrine method) from a coal coking process were tested in anaerobic batch cultures to determine whether phenol degradation and subsequent methane production would occur. Phenol was degraded in cultures which contained < 30% (V/V) wastewater but no methane production could be attributed to the phenol degradation. Higher concentrations of the wastewater severely inhibited methane formation likely due to cyanide which was present in the wastewater at 8.3 mg/l. Exhaustive extraction at neutral pH with diethyl ether could not alleviate this inhibition, suggesting that it was not primarily due to non-polar organic compounds. Although the inclusion of 2500 mg/l activated carbon in the batch cultures improved the methanogenic fermentation, methane yields were still lower than expected for complete phenolic conversion.

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