scholarly journals Optimum Dosage of Fenton's Reagent for the Dyeing Wastewater by the Different Conditions of Biological Treatment as the Pre-treatment Process

2005 ◽  
Vol 14 (7) ◽  
pp. 683-689
Author(s):  
Joan-Sam Bea ◽  
Sang-Ho Lee
Keyword(s):  
Biological Treatment ◽  
Treatment Process ◽  
Fenton’S Reagent ◽  
Dyeing Wastewater ◽  
Fenton's Reagent ◽  
Optimum Dosage ◽  
Pre Treatment

Degradation of wine distillery wastewaters by the combination of aerobic biological treatment with chemical oxidation by Fenton's reagent

2005 ◽  
Vol 51 (1) ◽  
pp. 167-174 ◽  
Author(s):  
J. Beltran de Heredia ◽  
J. Torregrosa ◽  
J.R. Dominguez ◽  
E. Partido
Keyword(s):  
Chemical Oxygen Demand ◽  
Aromatic Compounds ◽  
Biological Treatment ◽  
Batch Reactor ◽  
Oxygen Demand ◽  
Chemical Oxidation ◽  
Utilization Rate ◽  
Fenton’S Reagent ◽  
Kinetic Rate Constant ◽  
Fenton's Reagent

The degradation of wine distillery wastewaters by aerobic biological treatment has been investigated in a batch reactor. The evolution of the chemical oxygen demand, biomass and total contents of polyphenolic and aromatic compounds was followed through each experiment. According to the Contois model, a kinetic expression for the substrate utilization rate is derived, and its biokinetic constant is evaluated. The final effluents of the aerobic biological experiments were oxidized by Fenton's reagent. The evolution of chemical oxygen demand, hydrogen peroxide concentration and total contents of polyphenolic and aromatic compounds was followed through each experiment. A kinetic model to interpret the experimental data is proposed. The kinetic rate constant of the global reaction is determined.

Advanced treatment of dyeing wastewater for reuse

1999 ◽  
Vol 39 (10-11) ◽  
pp. 249-255 ◽  
Author(s):  
X. Z. Li ◽  
Y. G. Zhao
Keyword(s):  
Biological Treatment ◽  
Photocatalytic Oxidation ◽  
Treatment Process ◽  
Oxidation Process ◽  
Membrane Filter ◽  
Significant Proportion ◽  
Treated Wastewater ◽  
Advanced Treatment ◽  
Dyeing Wastewater ◽  
Textile Dyeing

As one of the main pollution sources in Hong Kong, the textile dyeing and finishing industry creates a significant proportion of water pollution in nearby harbour zones. Generally speaking, conventional biological treatment processes have difficulties in degrading many dye chemicals causing high COD and colour in dyeing wastwaters. Studies using physical and chemical processes to further reduce COD and colour from dyeing wastewater have been intensively reported. The use of a photocatalytic process in the presence of TiO2 to degrade many different types of dye chemicals has been confirmed. However, how to efficiently separate and reuse TiO2 from treated wastewater became a notable problem in the application of a TiO2 photo-oxidation process. This study aims to develop an advanced treatment process for dyeing wastewater treatment. In which dyeing wastewater was initially treated by an Intermittently Decanted Extended Aeration (IDEA) reactor to initially remove those biodegradable matters and further treated by a TiO2 photocatalytic reactor as advanced treatment for complete decolorization and high COD removal. Suspended TiO2 powder used in photooxidation was separated from slurry by a membrane filter and recycled to the photoreactor continuously. The results demonstrated that photocatalytic-oxidation process could degrade those non-biodegradable organic substances in the effluent treated by the biological treatment process and also remove the colour from the effluent completely. TiO2, as catalyst, was successfully recovered by a membrane filter and continuously reused in the photoreactor. The quality of dyeing wastewater treated by the advanced treatment process can be good enough for reuse in the textile dyeing processes.

Optimisation of Fenton’s reagent usage as a pre-treatment for fermentation brines

2003 ◽  
Vol 96 (2-3) ◽  
pp. 277-290 ◽  
Author(s):  
Francisco J Rivas ◽  
Fernando J Beltrán ◽  
Olga Gimeno ◽  
Pedro Alvarez
Keyword(s):  
Fenton’S Reagent ◽  
Fenton's Reagent ◽  
Pre Treatment

Oxidative treatment characteristics of biotreated textile-dyeing wastewater and chemical agents used in a textile-dyeing process by advanced oxidation process

2004 ◽  
Vol 49 (5-6) ◽  
pp. 137-143 ◽  
Author(s):  
B.-R. Lim ◽  
H.-Y. Hu ◽  
K.-H. Ahn ◽  
K. Fujie
Keyword(s):  
Hydrogen Peroxide ◽  
Biological Treatment ◽  
Treatment Process ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Dyeing Wastewater ◽  
Dyeing Process ◽  
Textile Dyeing ◽  
Textile Dyeing Wastewater

The oxidative treatment characteristics of biotreated textile-dyeing wastewater and typical chemicals such as desizing, scouring, dispersing and swelling agents used in the textile-dyeing process by advanced oxidation process were experimentally studied. The refractory organic matters remained in the effluent of biological treatment process without degradation may be suitable for the improvement of biodegradability and mineralized to CO2 by combined ozonation with and without hydrogen peroxide. On the other hand, the refractory chemicals contained in the scouring agent A and swelling agent may not be mineralized and their biodegradability may not be improved by ozonation. However, the BOD/DOC ratio of scouring agent B increased from 0.3 to 0.45 after ozonation. Based on the results described above, advanced treatment process involving the ozonation without and with the addition of hydrogen peroxide, followed by biological treatment was proposed for the treatment of refractory wastewater discharged from the textile-dyeing process.

Typical MSW odor abatement using sludge derived carbon prepared by activation with Fenton’s reagent and NaClO

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 27220-27227 ◽  
Author(s):  
Lou Ziyang ◽  
Miao Chen ◽  
Wang Yachen ◽  
Zhu Nanwen ◽  
Andrea Vityi ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Activation Method ◽  
Fenton’S Reagent ◽  
Fenton's Reagent ◽  
Odor Abatement ◽  
Potential Resource ◽  
Pre Treatment

Sludge derived carbon (SBC) is a potential resource way for sewage sludge, and chemical pre-treatment is a necessary activation method for the improvement of the SBC quality.

Degradation of olive mill wastewater by the combination of Fenton's reagent and ozonation processes with an aerobic biological treatment

2001 ◽  
Vol 44 (5) ◽  
pp. 103-108 ◽  
Author(s):  
J. Beltrán-Heredia ◽  
J. Torregrosa ◽  
J. García ◽  
J.R. Dominguez ◽  
J.C. Tierno
Keyword(s):  
Biological Treatment ◽  
Chemical Oxidation ◽  
Polyphenolic Compounds ◽  
Olive Mill Wastewater ◽  
Fenton’S Reagent ◽  
Fenton's Reagent ◽  
Oxidation Processes ◽  
Moderate Reduction ◽  
Reagent Treatment ◽  
Olive Mill

Degradation of olive mill wastewater (OMW) by means of two chemical oxidation processes (Fenton's reagent and ozonation) and their consecutive treatments with aerobic microorganisms have been studied. Fenton's reagent treatment moderately reduces COD and to a greater extent the polyphenolic compounds. Ozonation contributed to low conversion of COD and moderate reduction of polyphenols. The aerobic biological treatments degrade to values higher than 70% and 90% for COD and polyphenolic compounds, respectively. A kinetic study has been carried out in each process, determining the representative kinetic parameters of each model.

Oxidation by Fenton's reagent combined with biological treatment applied to a creosote-comtaminated soil

2009 ◽  
Vol 166 (2-3) ◽  
pp. 594-602 ◽  
Author(s):  
C. Valderrama ◽  
R. Alessandri ◽  
T. Aunola ◽  
J.L. Cortina ◽  
X. Gamisans ◽  
...  
Keyword(s):  
Biological Treatment ◽  
Fenton’S Reagent ◽  
Fenton's Reagent
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