Co-metabolism of olive mill wastewater in sequencing batch reactor under aerobic conditions after Fenton-based oxidation

Çığgın, Aslı Seyhan; Iravanian, Anoosheh; Doğruel, Serdar; Orhon, Derin

doi:10.1016/j.jwpe.2021.102277

Cited by 13 publications

(6 citation statements)

References 38 publications

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“…Fenton's reaction is carried out in an acidic environment, and the optimal pH for this reaction is 2.8-3 [27]. Fenton process is defined on the basis of electron transfer between H 2 O 2 and a metal ion (generally iron ion), which acts as a homogeneous catalyst [28]. According to the mechanism of research in an acidic environment due to the reaction of hydrogen peroxide with Fe(II) or Fe(III) ions, the oxidation-reduction mechanism of the Fenton process is as follows.…”

Section: The Treatment Of Petroleum Wastewater With the Advanced Oxid...mentioning

confidence: 99%

Petroleum Wastewater Treatment

Beni¹,

Adel²,

Zaeimdar³

et al. 2023

Sustainable Development

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Petroleum hydrocarbons in refinery wastewater are considered the main cause of pollution. Wastewater from oil refineries contains large amounts of oil and fat in the form of suspended particles, light and heavy hydrocarbons, phenol, and other dissolved organic substances, which cause environmental pollution if they are discharged into the environment without treatment. Usually, conventional methods of treating petroleum wastes have a lot of costs; due to the existence of sufficient area for the construction of solar distillation ponds and suitable sunlight, as well as a large number of sunny days near the equator, the solar distillation method can be used. Membrane bioreactors based on biological decomposition and biological transformation of oils and waste oil materials have provided new solutions for the biological treatment of these wastewater. In addition to these methods, Fenton’s advanced oxidation methods, electrochemical coagulation method, and membrane filtration method are mentioned in this chapter.

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Section: The Treatment Of Petroleum Wastewater With the Advanced Oxid...mentioning

confidence: 99%

Petroleum Wastewater Treatment

Beni¹,

Adel²,

Zaeimdar³

et al. 2023

Sustainable Development

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show abstract

“…The reason that R. rubrum cannot directly treat DMW was the macromolecules (protein and fat) in the wastewater. According to Li et al (2020); Ciggin et al (2021), small molecular substances were used to promote the treatment of refractory substances by microorganisms. Therefore, the effects of different small molecular substances on DMW treatment by R. rubrum were studied (Figure 1).…”

Section: Screening Of Small Moleculesmentioning

confidence: 99%

“…This might be closely related to the structure and physicochemical properties of small molecules. When the molecular skeleton structure of growth matrix was similar to that of non growth matrix, the growth matrix induced the production of degrading enzyme (Leadbetter & Foster 1959;Li et al 2020;Ciggin et al 2021). This enzyme might co-metabolize non growth substrates in a nonspecific manner.…”

Section: Screening Of Small Moleculesmentioning

confidence: 99%

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Small molecule carbon source promoting dairy wastewater treatment of Rhodospirillum rubrum by co-metabolism and the establishment of multivariate nonlinear equation

2022

Water Science and Technology

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Rhodospirillum rubrum (R. rubrum) water treatment technology could recycle bio-resource. However, the inability to degrade macromolecular organics limited its wide application. This paper discussed the feasibility of small molecular carbon source promoting R. rubrum directly treatment dairy machining wastewater (DMW) and accumulations for single cell protein and pigment, and establishment of mathematical model. Six small molecules promoted the degradation of macromolecules (proteins) in DMW. They promoted protease secretion and non growth matrix (protein) decomposition in DMW through co metabolism. Among, 550 mg/L potassium sodium tartrate was the best, protease activity and protein removal rate were increased by 100% comparing with control. Then, chemical oxygen demand (COD) and protein removal rates reached 80%, the single cell protein, carotenoid and bacterial chlorophyll yields were increased 2 times. Meanwhile, carbon nitrogen ratio (C/N), food microbial ratio (F/M) were identified as the most important factor by principal component analysis. Multivariate nonlinear equation model between COD removal rate and C/N, F/M, time was established.

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“…El agua clarificada fue luego sometida a un tratamiento de oxidación biológica donde se logró una disminución adicional del 83%, 72% y 99.6% en los niveles de DQO, COT y fenoles, respectivamente. Ciggin et al [142] estudiaron las condiciones experimentales de un sistema híbrido compuesto por un pretratamiento de oxidación Fenton, seguido de un reactor biológico secuencial (SBR). Uno de los factores a estudiar fue el grado de dilución que se podría lograr sin alterar el desempeño del proceso biológico, bajo las condiciones de 105 días con cuatro ciclos por día, con una edad del lodo de 8 días, una DQO constante (400 mg/L) y la adición de OMW gradualmente creciente en cuatro fases consecutivas con aumentos de DQO entre 40 y 100 mg/ L y sin adición de OMW en la última fase.…”

Section: Iii7 Procesos Hibridosunclassified

Recuperación de polifenoles de efluentes de almazara mediante procesos de membrana y tratamiento biológico de las corrientes de rechazo

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Title: "Recovery of polyphenols from oil mill effluents through membrane processes and biological treatment of reject streams" Nowadays, the recovery of industrial effluents is becoming a promising approach in the context of the circular economy. The scarcity of fresh water sources, together with the protection of the environment, makes both the reuse of water and the recovery of valuable compounds necessary. Millions of tons of olive oil are produced each year in the Mediterranean sector, which leads to a large amount of wastewater with a high organic load and polyphenols. Polyphenols are phytotoxic compounds, which are harmful to the environment. However, they have high antioxidant activity, which makes them potentially valuable for marketing. This Doctoral Thesis has been carried out in order to implement the circular economy ("zero waste", zero waste) for the treatment of this wastewater. For this, different combinations of processes were used to, on the one hand, recover phenolic compounds, as well as treat this wastewater to be reincorporated into the production process.V.2. Use of ultrafiltration ceramic membranes as a first step treatment for olive oil washing wastewater

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Co-metabolism of olive mill wastewater in sequencing batch reactor under aerobic conditions after Fenton-based oxidation

Cited by 13 publications

References 38 publications

Petroleum Wastewater Treatment

Petroleum Wastewater Treatment

Small molecule carbon source promoting dairy wastewater treatment of Rhodospirillum rubrum by co-metabolism and the establishment of multivariate nonlinear equation

Recuperación de polifenoles de efluentes de almazara mediante procesos de membrana y tratamiento biológico de las corrientes de rechazo

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