Microwave enhanced Fenton-like process for the treatment of high concentration pharmaceutical wastewater

Yang, Yu; Wang, Peng; Shi, Shengjun; Liu, Yuan

doi:10.1016/j.jhazmat.2009.02.038

Cited by 134 publications

(64 citation statements)

References 44 publications

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“…Thus microwave enhanced FL process displayed superior treatment efficiency than traditional FL reagent process by improving the degradation efficiency and the settling quality of sludge. 227 Lam et al 228,229 showed that the used-car-engine oil can be recycled by pyrolysis using microwave heating at a reaction temperature of 600 C. The recovered liquid oils were composed of light paraffins and aromatic hydrocarbons and it was found that a significant reduction in the metal contaminants also occurs.…”

Section: Polymer Processingmentioning

confidence: 99%

Microwave material processing—a review

2011

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Microwave heating is caused by the ability of the materials to absorb microwave energy and convert it to heat. This article represents a review on fundamentals of microwave heating and their interaction with materials for various applications in a comprehensive manner. Experimental studies of single, multimode, and variable frequency microwave processing were reviewed along with their applications. Modeling of microwave heating based on Lambert's law and Maxwell's electromagnetic field equations have also been reviewed along with their applications. Modeling approaches were used to predict the effect of resonances on microwave power absorption, the role of supports for microwave heating, and to determine the nonuniformity on heating rates. Various industrial applications on thermal processing have been reviewed. There is tremendous scope for theoretical and experimental studies on the athermal effects of microwaves. Some of the unresolved problems are identified and directions for further research are also suggested.

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Section: Polymer Processingmentioning

confidence: 99%

Microwave material processing—a review

2011

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“…Currently, many technologies have been developed to improve Fenton oxidation for removing organic contaminants from aqueous solutions, such as photo-assisted (Al Momani et al, 2006;Kusic et al, 2006;Lau et al, 2002), microwave-enhanced (Liu et al, 2013;Yang et al, 2009), heating (Pliego et al, 2012;Zazo et al, 2011), and quinone (Chen and Pignatello, 1997;Gomez-Toribio et al, 2009) and hydroxylamine hydrochloride (HA) (Chen et al, 2011) redox cycling. As mentioned above, a major drawback of the Fenton system has been the accumulation and hydrolysisprecipitation of ferric ions, which could further slow down the whole Fenton process.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Fenton oxidation for removing organic matter from hypersaline solution by accelerating ferric system with hydroxylamine hydrochloride and benzoquinone

Peng

Zhang

et al. 2016

Journal of Environmental Sciences

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“…The yielded effluent after 3 d treatment depicted some transformation of the persistent organics to less lethal compounds such as 1, 2-benezenedicarboxylic acid and butyl 2-methylpropyl ester. Considering the fact that pharmaceutical wastewater contains large quantities of refractory organic toxic substances (Fent et al, 2006;Oktem et al, 2007;Ren et al, 2008;Yang et al, 2009;Giri et al, 2010) as well as residues of antibiotics, sustenance of pollutants reduction and transformation of the recalcitrant compounds by the isolate Z08 in the toxic ridden wastewater up to 7 d before decline suggested that the isolate Z08 has some toxic tolerance level with potentials in detoxification of toxic pollutants.…”

Section: Rhodobacter Sphaeroides Atcc 17029 (Cp00578)mentioning

confidence: 99%

Isolation and application of a wild strain photosynthetic bacterium to environmental waste management

Madukasi

Zhang

2011

Int. J. Environ. Sci. Technol.

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ABSTRACT:A new photosynthetic bacterium isolate was morphologically identified as a non-motile rod-shape gram-negative bacterium. It produced a dark red culture under phototrophic condition, reproduced by budding and formed a lamellar intracytoplasmic membrane system parallel to cytoplasmic membrane, which contained bacteriochlorophyll a and caratenoids. It's physiological and nutrient requirement tests gave indication that the isolate thrived and multiplied in varied environmental conditions. It was consequently named Z08 and identified as Rhodobacter sphaeroides by 16SrDNA. Adaptation of Z08 to biodegradation of two environmentally concerned wastewaters, i.e. soybean and pharmaceutical wastewaters, attested its potential in wastewater bioremediation. Z08 adaptation in a suspended batch photobioreactor treating pharmaceutical wastewater at 3500lx radiation recorded best result after wastewater dilution of 1:4 with concomitant chemical oxygen demand reduction, biomass yield and specific growth of 50 %, 780 mg/L and 0.015/h, respectively at the lowest hydraulic retention time of three days. Furthermore, gas chromatography mass spectra analyses of treated and raw pharmaceutical wastewater indicated that high molecular weight recalcitrant compounds found in the pharmaceutical wastewater were transformed to less toxic and acceptable lower molecular weight substances through biodegradation. Whilst Z08 treatment of soybean wastewater under natural light intensity radiation recorded 80 % reduction, 1540 mg/L and 0.025/h for chemical oxygen demand, biomass and specific growth rate respectively regardless of the food to microorganism ratio. This preliminary investigation showed that isolate Z08 has some toxic tolerance level which could detoxify refractory substances with great potential for cell protein recovery in high organic strength wastewater. Therefore, strain Z08 could be employed in biodegradation of contaminated wastewater streams.

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Microwave enhanced Fenton-like process for the treatment of high concentration pharmaceutical wastewater

Cited by 134 publications

References 44 publications

Microwave material processing—a review

Microwave material processing—a review

Enhancement of Fenton oxidation for removing organic matter from hypersaline solution by accelerating ferric system with hydroxylamine hydrochloride and benzoquinone

Isolation and application of a wild strain photosynthetic bacterium to environmental waste management

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