Detoxification and methane production kinetics from three-phase olive mill wastewater using Fenton's reagent followed by anaerobic digestion

2018 ◽  
Vol 94 (1) ◽  
pp. 265-275 ◽  
Author(s):  
Konstantinos Bampalioutas ◽  
Anestis Vlysidis ◽  
Gerasimos Lyberatos ◽  
Apostolos Vlyssides
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Olive Mill Wastewater ◽  
Fenton’S Reagent ◽  
Fenton's Reagent ◽  
Production Kinetics ◽  
Three Phase ◽  
Olive Mill

Treatment of olive mill wastewater by chemical processes: effect of acid cracking pretreatment

2014 ◽  
Vol 69 (7) ◽  
pp. 1453-1461 ◽  
Author(s):  
B. Hande Gursoy-Haksevenler ◽  
Idil Arslan-Alaton
Keyword(s):  
Acute Toxicity ◽  
Chemical Treatment ◽  
Suspended Solids ◽  
Olive Mill Wastewater ◽  
Wastewater Sample ◽  
Fenton’S Reagent ◽  
Total Phenols ◽  
Fenton's Reagent ◽  
Treatment Processes ◽  
Olive Mill

The effect of acid cracking (pH 2.0; T 70 °C) and filtration as a pretreatment step on the chemical treatability of olive mill wastewater (chemical oxygen demand (COD) 150,000 m/L; total organic carbon (TOC) 36,000 mg/L; oil–grease 8,200 mg/L; total phenols 3,800 mg/L) was investigated. FeCl3 coagulation, Ca(OH)2 precipitation, electrocoagulation using stainless steel electrodes and the Fenton's reagent were applied as chemical treatment methods. Removal performances were examined in terms of COD, TOC, oil–grease, total phenols, colour, suspended solids and acute toxicity with the photobacterium Vibrio fischeri. Significant oil–grease (95%) and suspended solids (96%) accompanied with 58% COD, 43% TOC, 39% total phenols and 80% colour removals were obtained by acid cracking-filtration pretreatment. Among the investigated chemical treatment processes, electrocoagulation and the Fenton's reagent were found more effective after pretreatment, especially in terms of total phenols removal. Total phenols removal increased from 39 to 72% when pretreatment was applied, while no significant additional (≈10–15%) COD and TOC removals were obtained when acid cracking was coupled with chemical treatment. The acute toxicity of the original olive mill wastewater sample increased considerably after pretreatment from 75 to 89% (measured for the 10-fold diluted wastewater sample). An operating cost analysis was also performed for the selected chemical treatment processes.

Combined treatment of olive mill wastewater by Fenton's reagent and anaerobic biological process

2015 ◽  
Vol 50 (2) ◽  
pp. 161-168 ◽  
Author(s):  
Carlos Amor ◽  
Marco S. Lucas ◽  
Juan García ◽  
Joaquín R. Dominguez ◽  
J. Beltrán De Heredia ◽  
...  
Keyword(s):  
Biological Process ◽  
Combined Treatment ◽  
Olive Mill Wastewater ◽  
Fenton’S Reagent ◽  
Fenton's Reagent ◽  
Olive Mill

Treatment of high strength olive mill wastewater by Fenton's reagent and aerobic biological process

2013 ◽  
Vol 48 (8) ◽  
pp. 954-962 ◽  
Author(s):  
Marco S. Lucas ◽  
J. Beltrán-Heredia ◽  
J. Sanchez-Martin ◽  
Juan Garcia ◽  
José A. Peres
Keyword(s):  
Biological Process ◽  
High Strength ◽  
Olive Mill Wastewater ◽  
Fenton’S Reagent ◽  
Fenton's Reagent ◽  
Olive Mill

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.

Chemical Treatment and Enhancement of Bioavailability of Olive Mill Wastewater

2009 ◽  
Vol 44 (3) ◽  
pp. 307-312
Author(s):  
Bassim Eid Abbassi
Keyword(s):  
Chemical Treatment ◽  
Contact Time ◽  
Effective Means ◽  
Organic Content ◽  
Olive Mill Wastewater ◽  
Cod Removal ◽  
Fenton’S Reagent ◽  
Fenton's Reagent ◽  
Short Contact Time ◽  
Olive Mill

Abstract In this research, the potential of chemical treatment of olive mill wastewater (OMW) using different compounds such as lime, potassium permanganate, hypochlorite, and Fenton's reagent has been investigated. The capability of these compounds to breakdown the carbonaceous content of OMW was tested at different concentration ratios and contact times using a batch system. Chemical oxygen demand (COD) was used as an indicator for the organic content of the OMW. The results showed that chemical treatment is an effective means of treating highly concentrated wastewater such as OMW. A COD removal of about 90% was obtained at permanganate:COD ratio of 1:25 and contact time of 25 minutes. Using Fenton's reaction, more than 93% COD removal was observed at COD:Fe ratio of 50:1, H2O2:Fe ratio of 10:1, and contact time of 10 minutes. The lowest COD removal was observed using sodium hypochlorite. It was possible to reduce the bioavailability indicator, COD/BOD5 ratio, by 40 and 50% by treating the OMW with permanganate and Fenton's reagent, respectively. These results along with the short contact time required indicate that chemical treatment is an effective alternative to conventional biological treatment of highly concentrated OMW.

scholarly journals Enhancing methane production from the invasive macroalga Rugulopteryx okamurae through anaerobic co-digestion with olive mill solid waste: process performance and kinetic analysis

2021 ◽  
Author(s):  
D. de la Lama-Calvente ◽  
M. J. Fernández-Rodríguez ◽  
J. Llanos ◽  
J. M. Mancilla-Leytón ◽  
R. Borja
Keyword(s):  
Anaerobic Digestion ◽  
Solid Waste ◽  
Methane Production ◽  
Methane Yield ◽  
Specific Rate ◽  
Order Kinetic ◽  
Two Phase ◽  
First Order ◽  
Olive Mill Solid Waste ◽  
Olive Mill

AbstractThe biomass valorisation of the invasive brown alga Rugulopteryx okamurae (Dictyotales, Phaeophyceae) is key to curbing the expansion of this invasive macroalga which is generating tonnes of biomass on southern Spain beaches. As a feasible alternative for the biomass management, anaerobic co-digestion is proposed in this study. Although the anaerobic digestion of macroalgae barely produced 177 mL of CH4 g−1 VS, the co-digestion with a C-rich substrate, such as the olive mill solid waste (OMSW, the main waste derived from the two-phase olive oil manufacturing process), improved the anaerobic digestion process. The mixture improved not only the methane yield, but also its biodegradability. The highest biodegradability was found in the mixture 1 R. okamurae—1 OMSW, which improved the biodegradability of the macroalgae by 12.9% and 38.1% for the OMSW. The highest methane yield was observed for the mixture 1 R. okamurae—3 OMSW, improving the methane production of macroalgae alone by 157% and the OMSW methane production by 8.6%. Two mathematical models were used to fit the experimental data of methane production time with the aim of assessing the processes and obtaining the kinetic constants of the anaerobic co-digestion of different combination of R. okamurae and OMSW and both substrates independently. First-order kinetic and the transference function models allowed for appropriately fitting the experimental results of methane production with digestion time. The specific rate constant, k (first-order model) for the mixture 1 R. okamurae- 1.5 OMSW, was 5.1 and 1.3 times higher than that obtained for the mono-digestion of single OMSW and the macroalga, respectively. In the same way, the transference function model revealed that the maximum methane production rate (Rmax) was also found for the mixture 1 R. okamurae—1.5 OMSW (30.4 mL CH4 g−1 VS day−1), which was 1.6 and 2.2 times higher than the corresponding to the mono-digestions of the single OMSW and sole R. okamurae (18.9 and 13.6 mL CH4 g−1 VS day−1), respectively.

Sign in / Sign up

Export Citation Format

Share Document