Biological effects and photodegradation by TiO2 of terpenes present in industrial wastewater

Catanzaro, Irene; Avellone, Giuseppe; Marcı̀, Giuseppe; Saverini, Marghereth; Scalici, Lea; Sciandrello, Giulia; Palmisano, Leonardo

doi:10.1016/j.jhazmat.2010.09.059

Cited by 23 publications

(17 citation statements)

References 16 publications

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“…The effects of EOs, and thus terpenes, on the environment and human health have been widely investigated [9][10][11]. The effect of adding citrus wastewater to sausage has been studied [12] but, at the same time, important differences in its mutagenic response have been hypothesized [13]. More research is needed in order to establish the tolerance of biological processes to high concentrations of EOs.…”

Section: Introductionmentioning

confidence: 99%

Depuration in aerated ponds of citrus processing wastewater with a high concentration of essential oils

Zema

Andiloro

Bombino

et al. 2012

Environmental Technology

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Citrus processing wastewater was treated in aerated pilot plants in order to evaluate the following: (a) energy efficiency under different air flow rates and times; and (b) limits of spontaneous microflora in adapting to essential oils. In comparison to permanent air flow, night aeration for 12 hours determined an increase of up to 12% of the monthly removal rate of chemical oxygen demand (COD) and a consequent reduction by 10% of energy consumptions per unit of COD removed from 0.63 to 0.57 kWh/kg COD . Lowering night aeration from 14 to 7 l/m 3 /h reduced by only 10% the removal rate of COD; the energy consumption per unit of COD removed (0.32 kWh/kg COD ) was consequently reduced by more than 40%. Dissolved oxygen was maintained at very low level, rarely exceeding 0.2 ppm, with no bad smell. The consequent high oxygen deficit of 98-99% of saturation induced high oxygen transfer efficiency. The microbial population was characterized mainly by aerobic bacteria; only 5-8% of bacteria were strictly anaerobic. In the deep tank layer under the air diffuser a small amount of sludge settled (0.03-0.04 kg of dry matter per kg of COD removed), containing only 3% of total organic matter detected at the end of the depuration process. The fact that the concentration of essential oils could be progressively increased up to 1400 ppm without noticeably slowing down the biological processes demonstrated the remarkable microbial adaptation.

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Section: Introductionmentioning

confidence: 99%

Depuration in aerated ponds of citrus processing wastewater with a high concentration of essential oils

Zema

Andiloro

Bombino

et al. 2012

Environmental Technology

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“…d-Limonene resulted not mutagenic in S. typhimurium or in V79 Hamster Chinese cells (8), but it is capable to induce DNA damage. This ability, evaluated by comet assay, may be the result of a direct genotoxicity or an indirect effect, i.e.…”

Section: Introductionmentioning

confidence: 83%

Abnormal mitotic spindle assembly and cytokinesis induced by D-Limonene in cultured mammalian cells

et al. 2013

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d-Limonene is found widely in citrus and many other plant species; it is a major constituent of many essential oils and is used as a solvent for commercial purposes. With the discovery of its chemotherapeutic properties against cancer, it is important to investigate the biological effects of the exposure to d-Limonene and elucidate its, as yet unknown, mechanism of action. We reported here that d-Limonene is toxic in V79 Chinese hamster cells in a dose-dependent manner. Moreover, to determine the cellular target of d-Limonene, we performed morphological observations and immunocytochemical analysis and we showed that this drug has a direct effect on dividing cells preventing assembly of mitotic spindle microtubules. This affects both chromosome segregation and cytokinesis, resulting in aneuploidy that in turn can lead to cell death or genomic instability.

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“…[21][22][23] Here, RhB is adopted as a representative organic pollutant in dye wastewater to evaluate the photocatalytic performance of as-prepared photocatalysts at room temperature. [21][22][23] Here, RhB is adopted as a representative organic pollutant in dye wastewater to evaluate the photocatalytic performance of as-prepared photocatalysts at room temperature.…”

Section: Photocatalytic Activitymentioning

confidence: 99%

“…The degradation of organic pollutants by TiO 2 photocatalysts has received much attention because of environmental concerns. [21][22][23] Here, RhB is adopted as a representative organic pollutant in dye wastewater to evaluate the photocatalytic performance of as-prepared photocatalysts at room temperature. The photocatalysis efficiency and the adsorbed amount of RhB were calculated by using the concentration of the solution analyzed by UV-filtered visible-light adsorption at a wavelength of 554 nm.…”

Section: Photocatalytic Activitymentioning

confidence: 99%

Assembly of TiO₂‐on‐Cu₂O Nanocubes with Narrow‐Band Cu₂O‐Induced Visible‐Light‐Enhanced Photocatalytic Activity

et al. 2014

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Newly designed TiO2‐on‐Cu2O nanocubes have been constructed as visible‐light‐driven photocatalysts with high efficiency by means of a facile self‐assembly approach at room temperature. In the resultant TiO2‐on‐Cu2O nanocubes, the TiO2 nanoparticles with a diameter of 6–8 nm show a well‐monodispersed distribution of the 200–300 nm‐sized Cu2O single‐crystal nanocubes, which can form sub‐monolayer, monolayer, and multilayer coverage through controlling the ratio of the two phases. In particular, the coupling of the wide‐bandgap semiconductor TiO2 with narrow‐bandgap Cu2O can lead to the markedly enhanced high visible‐light photocatalytic activity in the TiO2‐on‐Cu2O nanocomposite systems toward the photodegradation of rhodamine B, which is induced by the bandgap‐adjusting effect. This promising self‐assembly route can be extended to the preparation of other nanocomposite materials.

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Biological effects and photodegradation by TiO2 of terpenes present in industrial wastewater

Cited by 23 publications

References 16 publications

Depuration in aerated ponds of citrus processing wastewater with a high concentration of essential oils

Depuration in aerated ponds of citrus processing wastewater with a high concentration of essential oils

Abnormal mitotic spindle assembly and cytokinesis induced by D-Limonene in cultured mammalian cells

Assembly of TiO₂‐on‐Cu₂O Nanocubes with Narrow‐Band Cu₂O‐Induced Visible‐Light‐Enhanced Photocatalytic Activity

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Biological effects and photodegradation by TiO2 of terpenes present in industrial wastewater

Cited by 23 publications

References 16 publications

Depuration in aerated ponds of citrus processing wastewater with a high concentration of essential oils

Depuration in aerated ponds of citrus processing wastewater with a high concentration of essential oils

Abnormal mitotic spindle assembly and cytokinesis induced by D-Limonene in cultured mammalian cells

Assembly of TiO2‐on‐Cu2O Nanocubes with Narrow‐Band Cu2O‐Induced Visible‐Light‐Enhanced Photocatalytic Activity

Contact Info

Product

Resources

About

Assembly of TiO₂‐on‐Cu₂O Nanocubes with Narrow‐Band Cu₂O‐Induced Visible‐Light‐Enhanced Photocatalytic Activity