Use of advance oxidation process to improve the biodegradability of olive oil mill effluents

2015 ◽  
Vol 98 ◽  
pp. 319-324 ◽  
Author(s):  
Alper Alver ◽  
Emine Baştürk ◽  
Ahmet Kılıç ◽  
Mustafa Karataş
Keyword(s):  
Olive Oil ◽  
Oxidation Process ◽  
Advance Oxidation Process

Determination of the oxidative stability of olive oil, using focused-microwave energy to accelerate the oxidation process

2004 ◽  
Vol 378 (2) ◽  
pp. 479-483 ◽  
Author(s):  
M. P. Ca�izares-Mac�as ◽  
Jos� A. Garc�a-Mesa ◽  
M. D. Luque de Castro
Keyword(s):  
Oxidative Stability ◽  
Olive Oil ◽  
Oxidation Process ◽  
Microwave Energy

scholarly journals Modeling of decolorisation dyes by ozonation techniques using Levenberg-Marquardt neural network

2017 ◽  
Vol 13 (4) ◽  
pp. 737-741 ◽  
Author(s):  
Siti Fatimah ◽  
Wiharto Wiharto
Keyword(s):  
Neural Network ◽  
Laboratory Experiments ◽  
Oxidation Process ◽  
P Value ◽  
Synthetic Dyes ◽  
Complex Structures ◽  
Test Results ◽  
Advance Oxidation Process ◽  
Levenberg Marquardt ◽  
Ozonation Process

Acid Black 1 (AB1) and Acid Yellow 19 (AY19) are synthetic dyes widely used in industries such as textiles and cosmetics, which have complex structures. Special techniques are needed to degrade the dye before it goes out into the environment. One technique that has been done is to use Advance Oxidation Process (AOPs) using ozonation process. The process requires a combination of values of 4 parameters to obtain the optimum decolorization percentage. The parameters are dye concentration (mg / L), ozone concentration (mg / L), pH, and temperature (oC). In laboratory experiments to obtain a combination of parameters that yield the optimum decolorization percentage, requires relatively high time and cost. This research proposes modeling using Levenberg-Marquardt neural network (LM-NN) to obtain combination of parameters that can yield optimum decolorization percentage. The experimental results with the ozonation method obtained consecutive decolorization percentage values AB1 and AY19 were 93% and 98%. The percentage of decolorization was produced from a combination of 4 parameters, with values of 740 mg/L, 13 mg/L, 6.20, and 380C, while for the AY19 was 830 mg/L, 15 mg/L, 6.20, and 390C. The result of prediction of AB1 and AY19 by using LM-NN model in sequence is 95,25% and 99,99%. The condition was generated from the combination of the 4 parameters, for AB1 the values of each parameter were 707.50 mg/L, 12.70 mg/L, 7.50 and 380C, while the AY19  was 587.50 mg/L, 15.50 mg/L, 7,65, and 330C. The result of experimental and predicted using the LM-NN model, referring to statistical test results with 95% confidence level, indicating that the percentage of decolorization did not occur of difference significantly (p-value> 0.05), both for AB1 and AY19. It shows that modeling with LM-NN can be used to predict the optimum decolorization percentage with predetermined parameters.

Tailoring and optimization of hybrid ZnO:TiO2:CdO nanomaterials for advance oxidation process under visible light

2020 ◽  
Vol 509 ◽  
pp. 145326 ◽  
Author(s):  
Gaurav K. Upadhyay ◽  
Jeevitesh K. Rajput ◽  
Trilok K. Pathak ◽  
Pankaj K. Pal ◽  
L.P. Purohit
Keyword(s):  
Visible Light ◽  
Oxidation Process ◽  
Advance Oxidation Process

TEKNOLOGI DAN METODE PENGOLAHAN LIMBAH CAIR SEBAGAI PENCEGAHAN PENCEMARAN LINGKUNGAN

Barometer ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 232-238
Author(s):  
Suci Dhiya Mayra Suherman ◽  
Muhammad Arif Firdaus ◽  
Muhammad Hafidz Dwiky Ryansyah ◽  
Dessy Agustina Sari
Keyword(s):  
Fuel Cells ◽  
Dielectric Barrier Discharge ◽  
Microbial Fuel Cells ◽  
Oxidation Process ◽  
Barrier Discharge ◽  
Dielectric Barrier ◽  
Advance Oxidation Process ◽  
Rotating Biological Contactors

Pengolahan limbah cair sebagai pencegahan pencemaran lingkungan, limbah cair memiliki tingkat pencemaran yang tinggi, limbah cair  juga mempunyai kandungan BOD dan COD yang tinggi dan bila tidak diolah akan merusak lingkungan. Kegiatan pengolahan limbah cair bertujuan untuk mereduksi volume, agar mempermudah dalam penanganan dalam pengolahan selanjutnya. Pengolahan limbah cair harus dilengkapi dengan fasilitas yang menunjang sesuai dengan ketentuan, memenuhi frekuensi dalam pengambilan sampel limbah cair, memenuhi baku mutu efluen limbah cair, dan memenuhi penataan pelaporan hasil uji laboratorium limbah cair. Berbagai metode teknologi pengolahan limbah cair telah dikembangkan seperti elektrokoagulasi, advance oxidation process (AOP), reaktor microbial fuel cells (MFCs), elektrokoagulasi, proses film mikrobiologis (Biofilm), serta rotating biological contactors (RBC), Plasma Dielectric Barrier Discharge (DBD), teknologi membran.

scholarly journals Aplikasi Metode Advance Oxidation Process (AOP) Fenton pada Pengolahan Limbah Cair Pabrik Kelapa Sawit

2016 ◽  
Vol 11 (1) ◽  
pp. 1 ◽  
Author(s):  
Ruka Yulia ◽  
Hesti Meilina ◽  
Adisalamun Adisalamun ◽  
Darmadi Darmadi
Keyword(s):  
Response Surface Methodology ◽  
Chemical Oxygen Demand ◽  
Response Surface ◽  
Oxidation Process ◽  
Oxygen Demand ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Box Behnken Design ◽  
Advance Oxidation Process

Penelitian ini bertujuan untuk mengetahui kemampuan proses Fenton dalam menurunkan kadar chemical oxygen demand (COD) dan kadar total suspended solid (TSS) dari limbah cair pabrik kelapa sawit (PKS) dan menentukan kondisi optimum dari parameter yang digunakan dengan Response Surface Methodology menurut Box- Behnken design. Sampel diambil pada keluaran pertama kolam anaerobik ketiga dari instalasi pengolahan limbah cair kelapa sawit yang mengandung nilai COD berkisar antara 8.000 hingga 12.000 ppm. Pada penelitian ini, dilakukan pengujian pada berbagai pH, konsentrasi FeSO4.7H2O dan konsentrasi hidrogen peroksida. Hasil  penelitian menunjukkan bahwa kemampuan proses AOP dengan metode Fenton dapat menurunkan konsentrasi COD dan TSS masing-masing adalah 70,7704% dan 88,3897% pada konsentrasi FeSO4.7H2O 3703,52 ppm, konsentrasi H2O2 5586,43 ppm, dan pH 3.

Olive Oil Mill Wastewater Treatment by the Electro-Fenton Process

2006 ◽  
Vol 3 (5) ◽  
pp. 345 ◽  
Author(s):  
Nizar Bellakhal ◽  
Mehmet A. Oturan ◽  
Nihal Oturan ◽  
Mohamed Dachraoui
Keyword(s):  
Wastewater Treatment ◽  
Olive Oil ◽  
Model Compound ◽  
Oxidation Process ◽  
Oxygen Demand ◽  
Fenton Process ◽  
Colour Intensity ◽  
Olive Oil Mill Wastewater ◽  
Chemical Reagents ◽  
Mediterranean Countries

Environmental Context. The combination of the Fenton’s reagent with electrochemistry (the electro-Fenton process) represents an efficient method for wastewater treatment. This study describes the use of this process to clean olive oil mill wastewater, which is a real environmental problem in Mediterranean countries. Contrary to the conventional methods which reduce the pollution by removing the pollutants from the wastewater, the electro-Fenton process is shown to fully destroy (mineralize) olive oil mill wastes in water without previous extraction and without addition of chemical reagents. Abstract. Treatment of olive oil mill wastewater is one of the most important environmental problems for Mediterranean countries. This wastewater contains many organic compounds like polyphenols, which are very difficult to treat by classical techniques. An advanced electrochemical oxidation process, the electro-Fenton process, has been used as a way of removing chemical oxygen demand and colour intensity from olive oil mill wastewater. Vanillic acid, which has been selected as a model compound, and olive oil mill wastewater have been completely mineralized by the electro-Fenton process with a carbon felt cathode, using Fe2+ ions as the catalyst.

Oxidation of Olive Oil under Still Air

2005 ◽  
Vol 11 (3) ◽  
pp. 183-189 ◽  
Author(s):  
A. Kanavouras ◽  
A. Cert ◽  
R. J. Hernandez
Keyword(s):  
Olive Oil ◽  
Oxidation Process ◽  
Polar Compounds ◽  
Mass Ratio ◽  
Exposed Area ◽  
Order Chemical Reaction ◽  
Mass Ratios ◽  
First Order Chemical Reaction ◽  
Triacylglycerol Fraction ◽  
By Products

This work was conducted to analyse the effect of different exposed areas/mass ratios on oil oxidation. Different volumes of the triacylglycerol portion of purified olive oil were placed in glass vials with the same air-exposed area, and stored at 38°C in the dark under still air. The oxidation process was evaluated by determining the peroxide index, K232 and K270 extinction coefficients, fatty acid composition, polar compounds (PCs) and composition of triacylglycerols over time. Substantial differences in the oxidation rate as a function of the air-exposed area to triacylglycerol fraction-mass ratio were observed. The peroxide index exponential increase with time was correlated to the air-exposed area/triacylglycerol fraction mass ratio and the oxidation induction period. Less oxidation derived by-products per gram of triacylglycerols were observed for smaller air-exposed area/triacylglycerol fraction mass ratios. The oxidation process followed an apparent first order chemical reaction. Correlations of the evolution patterns among the various oxidation by-products were also reported.

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