A study on a combined process for the treatment of phenolic resin plant effluents

Agarwal, Saurabh; Ferreira, Ana E.; Reis, M. Teresa A.; Ismael, M. Rosinda C.; Ferreira, L.M.; Machado, Remígio M.; Carvalho, Jorge M.R.

doi:10.1016/j.jhazmat.2009.03.139

Cited by 5 publications

(2 citation statements)

References 29 publications

(58 reference statements)

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“…FA concentrations detected in effluents are in the range of 100-10 000 mg/dm 3 (Guimarães et al, 2012), and sometimes even higher, up to 30 000 mg/dm 3 (Herrera Melián et al, 2008). Similarly, phenol may be present in raw wastewater in high concentrations, up to 60 g/dm 3 (Agarwal et al, 2009). Garrido and coworkers (Garrido et al, 2001) noted that wastewater from formaldehyde-urea adhesive factories can contain 4000 mg FA/dm 3 and urea concentrations can be up to 805 mg TKN (Total Kjeldahl Nitrogen) /dm 3 .…”

Section: Treatment Of Wastewater From the Production Of Formaldehyde-mentioning

confidence: 99%

Adhesives based on formaldehyde – environmental problems

Wojtkowska¹,

Załęska-Radziwiłł²,

Tabernacka³

2017

bta

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Adhesives are substances that increase the surface adhesion of bonded items. Unfortunately, they also emit volatile organic compounds (VOCs) which negatively impact upon human and animal health. VOCs have carcinogenic and mutagenic properties and can cause migraines, irritation to the eyes, nasal passages, mouth, and lungs, and respiratory problems. Wastewater from adhesive production is characterized by high levels of pollutants and contains high concentrations of compounds including formaldehyde that are toxic to water biocenoses. Moreover, its purification causes many problems and requires the application of specific methods. This review presents data concerning the toxicity and ecotoxicity of selected adhesives components. VOC emission rates from adhesives and wooden construction elements with adhesives are also discussed and assessed. Current knowledge on the treatment methods for wastewater containing adhesive components is reviewed. Finally, the treatment and disposal methods for solid wooden waste containing adhesives are also analyzed and discussed.

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Section: Treatment Of Wastewater From the Production Of Formaldehyde-mentioning

confidence: 99%

Adhesives based on formaldehyde – environmental problems

Wojtkowska¹,

Załęska-Radziwiłł²,

Tabernacka³

2017

bta

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“…Phenol produces many adverse effects on the aquatic ecosystem, even at small concentrations [6]. This compound at concentrations exceeding 2 mg L -1 is toxic to fish, and at concentrations in the range of 10-100 mg L -1 result in the death of aquatic plants within 96 h [7].…”

Section: Introductionmentioning

confidence: 99%

Phenol Removal via Advanced Oxidative Processes (O3/Photo-Fenton) and Chemometrics

Freitas¹,

Freitas²,

Filho

et al. 2013

AJTAS

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Taguchi's L 16 orthogonal array in the study of removal of total phenols using advanced oxidation processes was efficient. In the statistical assessment, the input variables obtained as significant through ANOVA were: hydrogen peroxide (F = 10.0924 and p-value = 5.02) and ozone (F = 3.8686 and p-value = 14.39). In this assessment, the best experimental condition for the removal of total phenols is 100%. The following factors must therefore be adjusted: hydrogen peroxide = 38, 7g and ozone flow = 3 L/h.

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Study of an Annular Photoreactor with Tangential Inlet and Outlet. II. The UV/H₂O₂ Reactive Flow

et al. 2019

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The concentration profiles of species involved in the degradation of phenol by an advanced oxidation process (AOP) are modeled by a computational fluid dynamics tool in an annular reactor whose fluid dynamics was the object of a previous study. The reactive flow was fully described together with the radiation field and the kinetic model, which encompasses large kinetic constants such as 1010 L mol−1s−1. Phenol degradation can be simulated by using relaxation factors of at least 1012 kg m−3s−1. The hydroxyl radical concentration profile depends on the radiation field, assessed by the discrete ordinate and the discrete transfer methods. Phenol can be completely degraded along the reactor. A centrifugal effect was observed, with higher concentrations of degradation products along the inner wall at the reactor outlet.

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A study on a combined process for the treatment of phenolic resin plant effluents

Cited by 5 publications

References 29 publications

Adhesives based on formaldehyde – environmental problems

Adhesives based on formaldehyde – environmental problems

Phenol Removal via Advanced Oxidative Processes (O3/Photo-Fenton) and Chemometrics

Study of an Annular Photoreactor with Tangential Inlet and Outlet. II. The UV/H₂O₂ Reactive Flow

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A study on a combined process for the treatment of phenolic resin plant effluents

Cited by 5 publications

References 29 publications

Adhesives based on formaldehyde – environmental problems

Adhesives based on formaldehyde – environmental problems

Phenol Removal via Advanced Oxidative Processes (O3/Photo-Fenton) and Chemometrics

Study of an Annular Photoreactor with Tangential Inlet and Outlet. II. The UV/H2O2 Reactive Flow

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Study of an Annular Photoreactor with Tangential Inlet and Outlet. II. The UV/H₂O₂ Reactive Flow