Treatment of olive mill wastewater using ozonation followed by an encapsulated acclimated biomass

Oz, Yeara Bar; Mamane, Hadas; Menashe, Ofir; Cohen-Yaniv, Vered; Kumar, Rupak; Iasur-Kruh, Lilach; Kurzbaum, Eyal

doi:10.1016/j.jece.2018.07.003

Cited by 33 publications

(4 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The phenol-biodegradation rate of the suspended form and the SBP-encapsulated form were similar, demonstrating the potential of the SBP technology. Oz et al [12] also demonstrated the efficiency of olive mill wastewater isolate Delfina tsuruhatensis in a combined process of pre-ozonation followed by treatment with SBP capsules, in increasing the biodegradation rate. This was the first study demonstrating synergy between the AOP treatment and subsequent biological SBP technology.…”

Section: Introductionmentioning

confidence: 99%

LP-UV-Nano MgO2 Pretreated Catalysis Followed by Small Bioreactor Platform Capsules Treatment for Superior Kinetic Degradation Performance of 17α-Ethynylestradiol

et al. 2019

Self Cite

View full text Add to dashboard Cite

A successful attempt to degrade synthetic estrogen 17α-ethynylestradiol (EE2) is demonstrated via combining photocatalysis employing magnesium peroxide (MgO2)/low-pressure ultraviolet (LP-UV) treatment followed by biological treatment using small bioreactor platform (SBP) capsules. Reusable MgO2 was synthesized through wet chemical synthesis and extensively characterized by X-ray diffraction (XRD) for phase confirmation, X-ray photoelectron spectroscopy (XPS) for elemental composition, Brunauer-Emmett-Teller (BET) to explain a specific surface area, scanning electron microscopy (SEM) imaging surface morphology, and UV-visible (Vis) spectrophotometry. The degradation mechanism of EE2 by MgO2/LP-UV consisted of LP-UV photolysis of H2O2 in situ (produced by the catalyst under ambient conditions) to generate hydroxyl radicals, and the degradation extent depended on both MgO2 and UV dose. Moreover, the catalyst was successfully reusable for the removal of EE2. Photocatalytic treatment by MgO2 alone required 60 min (~1700 mJ/cm2) to remove 99% of the EE2, whereas biodegradation by SBP capsules alone required 24 h to remove 86% of the EE2, and complete removal was not reached. The sequential treatment of photocatalysis and SBP biodegradation to achieve complete removal required only 25 min of UV (~700 mJ/cm2) and 4 h of biodegradation (instead of >24 h). The combination of UV photocatalysis and biodegradation produced a greater level of EE2 degradation at a lower LP-UV dose and at less biodegradation time than either treatment used separately, proving that synergetic photocatalysis and biodegradation are effective treatments for degrading EE2.

show abstract

Section: Introductionmentioning

confidence: 99%

LP-UV-Nano MgO2 Pretreated Catalysis Followed by Small Bioreactor Platform Capsules Treatment for Superior Kinetic Degradation Performance of 17α-Ethynylestradiol

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…On the other hand, the post-ozonation process can lead to the removal of resistant micropollutant residuals. The different combination of ozonation and biological methods were applied for detoxification of industrial textile wastewater [ 24 ], oil sands process water [ 28 ], pharmaceutical wastewater [ 30 , 31 ], olive mill wastewater [ 32 ], and urban wastewater [ 33 ]. The literature includes examples of the application of ozonation combined with the biodegradation process for PAHs removal [ 23 , 34 , 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Ozonation-Biodegradation Hybrid System for Polycyclic Aromatic Hydrocarbons Degradation

Olak-Kucharczyk

Festinger

Smułek

2023

IJERPH

View full text Add to dashboard Cite

Creosote, a mixture of polycyclic aromatic hydrocarbons (PAHs), was and is a wood impregnate of widespread use. Over the years the accumulation of creosote PAHs in soils and freshwaters has increased, causing a threat to ecosystems. The combined ozonation-biodegradation process is proposed to improve the slow and inefficient biodegradation of creosote hydrocarbons. The impact of different ozonation methods on the biodegradation of model wastewater was evaluated. The biodegradation rate, the changes in chemical oxygen demand, and the total organic carbon concentration were measured in order to provide insight into the process. Moreover, the bacteria consortium activity was monitored during the biodegradation step of the process. The collected data confirmed the research hypothesis, which was that the hybrid method can improve biodegradation. The pre-ozonation followed by inoculation with a bacteria consortium resulted in a significant increase in the biodegradation rate. It allows for the shortening of the time required for the consortium to reach maximum degradation effectiveness and cell activity. Hence, the study gives an important and useful perspective for the decontamination of creosote-polluted ecosystems.

show abstract

“…The ozonated samples have been studied for biofuel production via fermentation process for bioeth-anol production [14,15], biohydrogen production [16], and anaerobic digestion process for methane production [17]. In addition, the ozonated biomass has also been studied in the waste water treatment plant [18]. Therefore, the ozone pretreatment is a suitable candidate to be used as pretreatment method of biomass for industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Chemical and Structural Changes of Ozonated Empty Fruit Bunch (EFB) in a Ribbon-Mixer Reactor

Rasid

Shamjuddin

Amin

2021

Bull. Chem. React. Eng. Catal.

View full text Add to dashboard Cite

Agricultural wastes especially empty fruit bunch (EFB) are abundantly available to be utilized as a feedstock for biochemical synthesis or biofuel production. The components of the waste include lignin, hemicellulose and cellulose. Cellulose, the polymer of glucose, is the active component for producing bio-based chemicals. However, it is difficult to isolate cellulose since lignin, the most outer layer in the waste is recalcitrant. Therefore, the agricultural wastes need to be pre-treated prior to downstream processing. The aim of this study was to investigate the effect of ozone pretreatment on lignin degradation and total reducing sugar (TRS) yield. EFB was pre-treated using ozone gas in a ribbon-mixer reactor. The chemical and structural changes of ozonated EFB were analysed. The highest delignification obtained were 95.7 wt.% and TRS yield was enhanced to 84.9% at a moisture content of 40 wt.% with 60 g/m3 ozone concentration within one hour of reaction time. Both NMR and FTIR spectra conferred major peaks inferring higher lignin degradation could be achieved using ozonolysis. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

show abstract

Treatment of olive mill wastewater using ozonation followed by an encapsulated acclimated biomass

Cited by 33 publications

References 46 publications

LP-UV-Nano MgO2 Pretreated Catalysis Followed by Small Bioreactor Platform Capsules Treatment for Superior Kinetic Degradation Performance of 17α-Ethynylestradiol

LP-UV-Nano MgO2 Pretreated Catalysis Followed by Small Bioreactor Platform Capsules Treatment for Superior Kinetic Degradation Performance of 17α-Ethynylestradiol

Application of Ozonation-Biodegradation Hybrid System for Polycyclic Aromatic Hydrocarbons Degradation

Chemical and Structural Changes of Ozonated Empty Fruit Bunch (EFB) in a Ribbon-Mixer Reactor

Contact Info

Product

Resources

About