Petrochemical wastewater treatment and reuse by MBR: A pilot study for ethylene oxide/ethylene glycol and olefin units

Bayat, Mitra; Mehrnia, Mohammad Reza; Hosseinzadeh, Mostafa; Sheikh-Sofla, Reza

doi:10.1016/j.jiec.2014.11.003

Cited by 30 publications

(8 citation statements)

References 41 publications

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“…Other examples come from chemical plants manufacturing and using formaldehyde, which produce wastewaters containing methanol [ 27 ] or refinery wastewaters, which are abundant sources of ethylene glycol [ 28 ]. Moreover, petrochemical wastewaters contain ethylene glycol and acetaldehyde, or BTEX (benzene, toluene, ethyl benzene, xylene) [ 29 ]. Petrochemical refineries also produce effluents containing chlorinated solvents, such as dichloromethane, chloroform, carbon tetrachloride and 1,2-dichloroethane [ 30 ].…”

Section: Effect Of Organic Solvents On Microalgae Growthmentioning

confidence: 99%

Effect of Organic Solvents on Microalgae Growth, Metabolism and Industrial Bioproduct Extraction: A Review

Miazek

Krátký

Šulc

et al. 2017

IJMS

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In this review, the effect of organic solvents on microalgae cultures from molecular to industrial scale is presented. Traditional organic solvents and solvents of new generation-ionic liquids (ILs), are considered. Alterations in microalgal cell metabolism and synthesis of target products (pigments, proteins, lipids), as a result of exposure to organic solvents, are summarized. Applications of organic solvents as a carbon source for microalgal growth and production of target molecules are discussed. Possible implementation of various industrial effluents containing organic solvents into microalgal cultivation media, is evaluated. The effect of organic solvents on extraction of target compounds from microalgae is also considered. Techniques for lipid and carotenoid extraction from viable microalgal biomass (milking methods) and dead microalgal biomass (classical methods) are depicted. Moreover, the economic survey of lipid and carotenoid extraction from microalgae biomass, by means of different techniques and solvents, is conducted.

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Section: Effect Of Organic Solvents On Microalgae Growthmentioning

confidence: 99%

Effect of Organic Solvents on Microalgae Growth, Metabolism and Industrial Bioproduct Extraction: A Review

Miazek

Krátký

Šulc

et al. 2017

IJMS

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“…Petrochemicals are large and complex chemical products derived from natural gas and petroleum, releasing monoethylene glycol (MEG) to the natural environment (e.g., water bodies) [1]. Monoethylene glycol (MEG; formula HO-CH 2 -CH 2 -OH) is an essential chemical product used to manufacture polyester fiber, bottles, and film [2].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of sludge-derived biochar modified with eggshell waste for monoethylene glycol removal from aqueous solutions

et al. 2020

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In this study, the pyrolysis of sewage sludge was employed to prepare a biochar (BC) adsorbent that was modified using eggshell wastes, obtaining eggshell-modified biochar (EMBC). The adsorbent material was used for the removal of monoethylene glycol (MEG) from aqueous solutions under various adsorption conditions. Results showed that the specific surface area of EMBC (i.e., 3.95 m 2 /g) was approximately twofold higher than that of BC, implying that the application of eggshell waste would improve the surface adsorption performance. The optimum adsorption pH value was 7, achieving MEG removal efficiencies of 29.9% for BC and 89.9% for EMBC using adsorbent dosage = 2 g/L, initial MEG concentration = 100 mg/L, and 25 °C within 60 min. The adsorption mechanisms were illustrated regarding XRD, FTIR, and SEM, demonstrating that surface adsorption, pore-filling, precipitation, and complexation contributed to the adsorption process. The adsorption data fitted well to the Langmuir isotherm model with the maximum monolayer adsorption capacity of 12.20 mg/g, implying a reversible physisorption mechanism. Based on a techno-economic feasibility assessment, the preparation of BC and EMBC adsorbents for the treatment of 1 m 3 of wastewater-containing ethylene glycol would require capital costs of 4.80 and 6.50 US$, respectively. The selling of adsorbents and the economic benefit of tertiary treated water showed adequate annual profitability with payback periods of 12.97 and 6.79 years for the BC and EMBC scenarios, respectively. Hence, the study succeeded in preparing efficient and low-cost adsorbents that could be used for the tertiary treatment of petrochemical industrial wastewater containing toxic environmental pollutants.

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“…Ahmed et al (2007) reported that a growth in EPS can increase the cake resistance which finally results in TMP increase. According to Bayat et al (2014), which treated real petrochemical wastewater by MBR, increasing membrane cake layer resistance was the main factor of fouling. But Rosenberger and Kraume (2002) reported that EPS has no role in membrane fouling, while SMP is the main factor.…”

Section: Smpmentioning

confidence: 99%

Biological treatment of real petrochemical wastewater containing styrene using submerged membrane bioreactor: effects of HRT

Zeirani

Fallah

Nasernejad

2018

Int. J. Environ. Sci. Technol.

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In this study, real petrochemical wastewater treatment was investigated at four hydraulic retention times (HRTs) of 30, 18, 12 and 6 h, using membrane bioreactor. Initial evaluation confirmed the presence of styrene and more than 30 different types of compounds in petrochemical wastewater. Laboratory tests and gas chromatography-mass spectrometry (GC-MS) studies indicated that at all HRTs, styrene and chemical oxygen demand (COD) removal efficiencies are higher than 99 and 95%, respectively. Further investigations also revealed that HRT decreasing, not only does not reduce the COD removal efficiency, but also improves the effluent COD by increasing mixed liquor suspended solids. Also GC-MS analysis indicated that styrene as the major pollutant was removed over 99%. Transmembrane pressure was monitored for determining membrane fouling. Data showed severe membrane fouling occurred at HRT of 6 h which was attributed to increase in soluble microbial products.

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Petrochemical wastewater treatment and reuse by MBR: A pilot study for ethylene oxide/ethylene glycol and olefin units

Cited by 30 publications

References 41 publications

Effect of Organic Solvents on Microalgae Growth, Metabolism and Industrial Bioproduct Extraction: A Review

Effect of Organic Solvents on Microalgae Growth, Metabolism and Industrial Bioproduct Extraction: A Review

Synthesis of sludge-derived biochar modified with eggshell waste for monoethylene glycol removal from aqueous solutions

Biological treatment of real petrochemical wastewater containing styrene using submerged membrane bioreactor: effects of HRT

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