Biodegradation of mixture of phenol and formaldehyde in wastewater using a single-basin MSCR process

Moussavi, Gholamreza; Heidarizad, Mahdi

doi:10.1016/j.jbiotec.2010.08.012

Cited by 27 publications

(17 citation statements)

References 25 publications

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“…The treatment of wastewater from phenol-formaldehyde resin production was investigated by Moussavi et al (Moussavi et al, 2010). They proposed a novel moving-bed sequential continuous-inflow reactor (MSCR) to degrade wastewater containing high concentrations of phenol and formaldehyde (each at concentrations of 1300 mg/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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“…However, this low HRT can be of great value compared to the relatively high retention time required in anaerobic systems, designed to remove furfural from wastewater (2,13). In fact, this modification allows exploitation of the unique advantages of the COP and intermittent-cycle extended-aeration activated sludge, used by Moussavi et al (14). The upper limit of loading rate that effectively treated with relatively high removal efficiency in this study was higher than that obtained by other researchers through adsorption (1,19), photo-oxidation (9,20,21), and biological (22) methods.…”

Section: The Effect Of 70 % Pretreatment With Catalytic Ozonation Promentioning

confidence: 99%

“…Among these methods, biological processes are widely preferred because of their enormous and remarkable advantages, including flexibility and reliability, convenience of operation and maintenance, capability to eliminating a lot of contaminants, economic benefits, environmental friendly technology, degradation of contaminants to less toxic or harmful materials, potential for full-scale applications, etc. (13)(14)(15). However, biological systems have some deficits including disability to treat high concentration of pollutant and these techniques are time consuming (16).…”

Section: Introductionmentioning

confidence: 99%

Removal of Furfural From Wastewater Using Integrated Catalytic Ozonation and Biological Approaches

Leili¹,

Moussavi²,

Naddafi³

2014

Avicenna J Environ Health Eng

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Furfural with a chemical formula of C 5 H 4 O 2 is a toxic compound which has several health problems for both humans and environment. It has a few exposure routes for entering the human body such as oral, dermal or nasal. In the present study, the efficacies of an integrated catalytic ozonation process (COP) and novel cyclic biological reactor (CBR) were explored for the removal of furfural from aqueous solutions. Activated carbon was purchased from Merck Company. It had a Brunauer, Emmett, and Teller (BET) specific surface area of 1100 m 2 /g, with an average micropore volume and size of 0.385 cm 3 /g and 595 µm, respectively. The results indicated that 30% pretreatment with COP could increase furfural and chemical oxygen demand (COD) removal efficiency with CBR 5.56% and 27.01%, respectively. With 70% pretreatment by COP, 98.57% furfural and 95.34% COD removal efficiencies happen in CBR. Generally, batch and continuous experiments showed that the integrated COP/CBR could be efficient in eliminating furfural from wastewater and thus may be a promising technique for treating furfural-containing wastewater.

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“…A 1-L mixed liquor (containing a biomass concentration of 8 g/L), taken from a bench scale bioreactor that efficiently treated a synthetic wastewater containing phenol and formaldehyde (Moussavi and Heidari, 2010), was used to seed the BTF. For the biomass immobilization, the mixed liquor was circulated through the bed until the concentration of the suspended solids in the solution decreased to below 100 mg/L.…”

Section: Experimental Setup and Operationmentioning

confidence: 99%