Removal of phenol from aqueous phenol solution using Bio-emulsion

2021 ◽  
pp. 119138
Author(s):  
S. Samsnavith ◽  
A. Varun ◽  
N. Gowtham ◽  
S. Samdavid
Keyword(s):  
Phenol Solution

scholarly journals Photodegradation of Phenolic Compounds from Water in the Presence of a Pd-Containing Exhausted Adsorbent

2020 ◽  
Vol 10 (23) ◽  
pp. 8440
Author(s):  
Lavinia Lupa ◽  
Laura Cocheci ◽  
Bogdan Trica ◽  
Adina Coroaba ◽  
Adriana Popa
Keyword(s):  
Phenol Degradation ◽  
Magnesium Silicate ◽  
Degradation Process ◽  
Liquid Ratio ◽  
Phenol Solution ◽  
Secondary Sources ◽  
Great Economic Importance ◽  
Phenol Photodegradation ◽  
Cyphos Il 101 ◽  
Solid Liquid

A closed-cycle technology regarding the use of an exhausted Pd-based adsorbent as a photocatalyst in the degradation process of phenol is presented. Pd (II) represents a precious metal of great economic importance. Its obtained from natural sources become more difficult to achieve. Therefore, also considering the regulations of the “circular economy,” its recovery from secondary sources turn out to be a stringent issue in the last years. Pd(II) ions are removed from aqueous solution through adsorption onto Florisil (an inorganic solid support—magnesium silicate) impregnated with Cyphos IL 101 (trihexyl tetradecyl phosphonium chloride). It was observed that the presence of the ionic liquid (IL) in the adsorbent structure doubles the adsorption efficiency of the studied materials. The newly obtained Pd-based photocatalyst was exhaustively characterized and was used in the degradation process of phenol from aqueous solutions. The phenol degradation process was studied in terms of the nature of the photocatalyst used, time of photodegradation and solid: liquid ratio. It was observed that both the presence of IL and Pd lead to an increase in the efficiency of the phenol degradation process. The new Pd-based photocatalyst could be efficiently used in more cycles of phenol photodegradation processes. When is used as a photocatalyst the Florisil impregnated with IL and loaded with 2 mg/g of Pd, a degree of mineralization of 93.75% is obtained after 180 min of irradiation of a phenol solution having a concentration of 20 mg/L and using a solid:liquid ratio = 1:1.

Phenol Degradation by UV-Enhanced Catalytic Wet Peroxide Oxidation Process

2014 ◽  
Vol 17 (1) ◽  
Author(s):  
Peng Liu ◽  
Chaolin Li ◽  
Qi Han ◽  
Gang Lu ◽  
Xiaoqing Dong ◽  
...  
Keyword(s):  
Oxidation Process ◽  
Phenol Degradation ◽  
Cod Removal ◽  
Peroxide Oxidation ◽  
Homogeneous Catalysts ◽  
Phenol Solution ◽  
Wet Peroxide Oxidation ◽  
Catalytic Wet Peroxide Oxidation

AbstractIn this study, degradation of phenol solution by the ultraviolet-enhanced catalytic wet peroxide oxidation process (UV-CWPO) were evaluated via COD removal. Six kinds of homogeneous catalysts (Fe

Degradation of Phenol by Fe3+ Doped Nano-TiO2 Photocatalyst

2013 ◽  
Vol 859 ◽  
pp. 361-364 ◽  
Author(s):  
Jing Wang ◽  
Du Shu Huang ◽  
Wei Liu ◽  
Qing Shan Pan ◽  
Yong Min
Keyword(s):  
Degradation Rate ◽  
Annealing Temperature ◽  
Sol Gel ◽  
Phenol Degradation ◽  
Nano Tio2 ◽  
Phenol Solution ◽  
Sol Gel Process ◽  
Two Peaks ◽  
Degradation Properties ◽  
Better Than

Degradation properties of phenol using nano-TiO2 as photocatalyst in aqueous solution were investigated. The effect of annealing temperature and ionic modification on the degradation was studied. The results showed that, 500 °C annealed TiO2 was better than 700 °C annealed. Photocatalyst nano-TiO2 material doped with Fe3+ was prepared quickly by sol-gel process and was used as photocatalyst to degrade phenol solution of 100mg/L under UV irradiation for 3 hours. UV spectrophotometer testing was made and found that two peaks at 210 nm and 270 nm were significantly become low, indicating that the phenol has been degraded. The phenol degradation rate was 94.18%.

Study of Porous Plate Hydrodynamic Cavitation Device for P-Nitrophenol

2014 ◽  
Vol 1015 ◽  
pp. 385-388 ◽  
Author(s):  
Jie Deng
Keyword(s):  
Waste Water ◽  
Ph Value ◽  
Phenol Degradation ◽  
Porous Plate ◽  
Hydrodynamic Cavitation ◽  
Phenol Solution ◽  
Initial Ph ◽  
Relationship Of ◽  
The Relationship ◽  
Water Waste

Design a set of practical and effective hydraulic cavitation experiment device, hydraulic cavitation reactor, using porous plate for nitro phenol solution to simulate wastewater, respectively in different cavitation number initial pH value, initial concentration of the waste water, waste water, the cycle time, use different types of porous surface processing and analysis, through the experimental research, it is concluded that these factors and the relationship of nitro phenol degradation rate.

Removal of Phenol in Waste Water with Activated Carbon Prepared from Corncob Xylitol Residue

2013 ◽  
Vol 726-731 ◽  
pp. 2270-2273
Author(s):  
Jing Wen Xue ◽  
Shi Shuai Gao ◽  
Chun Hua Yin ◽  
Zheng Heng Li
Keyword(s):  
Waste Water ◽  
Activated Carbon ◽  
Phenol Solution

Corncob xylitol residue was soaked with H3PO4 for 16h and carbonized in microwave for 9min to obtain activated carbon. The adsorbing property of the activated carbon was investigated. Results showed phenol could be adsorbed effectively by activated carbon and the optimum adsorbing condition was: 20°C, 2h, pH 3-4. Increasing the amount of activated carbon could adsorb more phenol, and this effect was not apparent when the amount of activated carbon was more than 0.5g when adsorbing 100mL of 200mg/L phenol solution.

Pt-catalyzed ozonation of aqueous phenol solution using high-gravity rotating packed bed

2009 ◽  
Vol 168 (2-3) ◽  
pp. 649-655 ◽  
Author(s):  
Chia-Chi Chang ◽  
Chun-Yu Chiu ◽  
Ching-Yuan Chang ◽  
Chiung-Fen Chang ◽  
Yi-Hung Chen ◽  
...  
Keyword(s):  
Packed Bed ◽  
High Gravity ◽  
Phenol Solution ◽  
Rotating Packed Bed ◽  
Pt Catalyzed

scholarly journals Nanocomposites Photocatalysis Application for the Purification of Phenols and Real Olive Mill Wastewater through a Sequential Process

2020 ◽  
Vol 10 (20) ◽  
pp. 7329
Author(s):  
Srikanth Vuppala ◽  
Marco Stoller
Keyword(s):  
Operating Temperature ◽  
Oxygen Demand ◽  
Olive Mill Wastewater ◽  
Light Sources ◽  
Sequential Process ◽  
Phenol Solution ◽  
Aqueous Streams ◽  
Flocculation Process ◽  
Phenol Wastewater ◽  
Olive Mill

In this study, a synthetic phenol solution of water and raw olive mill wastewater (OMW) were considered to achieve purification of the aqueous streams from pollutants. Only OMW was initially submitted to a coagulation/flocculation process, to reduce the turbidity, phenols, and chemical oxygen demand (COD). This first treatment appeared to be mandatory in order to remove solids from wastewater, allowing the successive use of laboratory-made core-shell nanocomposites. In detail, the optimal coagulant concentration, i.e., chitosan, was 500 mg/L, allowing a reduction of the turbidity and the COD value by 90% and 33%, respectively. After this, phenol wastewater was tested for photocatalysis and then OMW was treated by employing the laboratory-made nanocomposites in a photoreactor equipped with visible light sources and using optimal catalyst concentrations, which allowed for an additional 45% reduction of the COD of the OMW. In addition to this, the effect of the operating temperature was investigated on the photocatalytic process, and suitable kinetic models proposed.

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