Adsorptive separation and recovery of organics from PHBA and SA plant effluents

Deosarkar, Sudhir P.; Pangarkar, Vishwas G.

doi:10.1016/j.seppur.2003.11.012

Cited by 50 publications

(25 citation statements)

References 14 publications

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“…In attendance various mass-transfer models were found for prediction of the fixed bed dynamics [23][24][25][26], among which the mathematical model based on non-linear wave propagation theory was used widely as expressed in Eqs. (4) to (6) [26]. The results calculated from K L a (min −1 ) are listed in Table 3.…”

Section: Mass Transfer Coefficientsmentioning

confidence: 99%

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Developing a new model to predict mass transfer coefficient of salicylic acid adsorption onto IRA-93: Experimental and modeling

Kananpanah¹,

Dizadji²,

Abolghasemi³

et al. 2009

Korean J. Chem. Eng.

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An experimental breakthrough curve for Salicylic acid in an adsorption recovery process was determined by an anion-exchange resin IRA-93. The volumetric mass transfer coefficients were calculated by employing constant wave propagation theory. Meanwhile, the effects of volumetric feed flow rates on this break through curve and mass transfer coefficients at different flow rates were also studied in order to develop three new models to predict mass transfer coefficient. The results demonstrated that by the increase in the feed flow rates, the amount of adsorption reduces. However, while the volumetric feed flow rates increase the overall volumetric mass transfer coefficients will increase. This grows the feeling that the feed flow rate should be optimized. The optimum flow rate for the adsorption was found to be 7 mg/l in this study. In addition, three new models to predict the mass transfer coefficient in respect of feed rates were developed in this research work which showed very high fittings with R 2 >0.99. These models could fully support the experimental data obtained.

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Section: Mass Transfer Coefficientsmentioning

confidence: 99%

“…Different techniques are used for the removal of phenolic compounds from wastewater [3,4]. Adsorption of phenolic compounds on different polymeric adsorbents has been studied by various researchers [5][6][7][8][9]. Salicylic acid is a drug compound which is usually produced from phenol [10].…”

Section: Introductionmentioning

confidence: 99%

Developing a new model to predict mass transfer coefficient of salicylic acid adsorption onto IRA-93: Experimental and modeling

Kananpanah¹,

Dizadji²,

Abolghasemi³

et al. 2009

Korean J. Chem. Eng.

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“…photosynthetic processes of aquatic plants, deficiency of dissolved oxygen levels in water and in critical cases promotes the asphyxiate of aquatic flora and fauna in natural receivers. Furthermore, many organic compounds contains dyes in form of phenolic [Abburi, 2003], organic acids [Deosarkar, 2004], hydrocarbons [Xu et al, 1997], alkenes [Long et al, 2008] etc. which are creating mutagenicity, carcinogenicity and teratogenicity diseases.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Acid Blue-7 Dye from Aqueous Solution On to Teak Sawdust And its Analysis By Equilibrium Adsorption Isotherms And Thermodynmics Equations

Malviya¹,

Parashar²,

Dixit³

et al. 2016

IOSR

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“…Among the various treatment options, solvent extraction is not successful because of constraints of ease of solvent recovery and solvent solubility in water stream. Adsorptive separations are ideally suited for recovery/removal of pollutants present at low levels in waste water streams, and polymeric adsorbents are particularly effective [1,2].…”

Section: Introductionmentioning

confidence: 99%

Process studies for development of adsorption technology for furfural recovery from waste water

Nanoti¹,

Gupta²,

Dasgupta³

et al. 2008

Environ. Prog.

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Lube refineries in India are facing pollution problems associated with the occasional loss of furfural from their solvent recovery column bottoms in the extraction plant, which constitute both an economic loss and an environmental hazard. Although earlier studies on furfural removal by adsorption on polymeric resins concentrated on equilibrium and kinetic/breakthrough measurements in small diameter columns in the adsorption, the regeneration of the loaded resin adsorbent has not been given adequate attention. This paper focuses on these issues and also includes studies on larger diameter columns with a view to provide data for design of a pilot scale plant for furfural recovery to be set up in a lube complex. The experimental data from adsorption cycle studies indicate that the resin bed is able to treat 28 bed volumes of furfural laden water bringing down the furfural concentration from 500 ppm to less than 10 ppm. The regeneration data indicate the recovery scheme produces an aqueous stream which contains 3% furfural which has to be taken back to the solvent recovery column in the extraction complex. Adsorption and regeneration data have been simulated respectively by the LDF and diffuse wave model.

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Adsorptive separation and recovery of organics from PHBA and SA plant effluents

Cited by 50 publications

References 14 publications

Developing a new model to predict mass transfer coefficient of salicylic acid adsorption onto IRA-93: Experimental and modeling

Developing a new model to predict mass transfer coefficient of salicylic acid adsorption onto IRA-93: Experimental and modeling

Adsorption of Acid Blue-7 Dye from Aqueous Solution On to Teak Sawdust And its Analysis By Equilibrium Adsorption Isotherms And Thermodynmics Equations

Process studies for development of adsorption technology for furfural recovery from waste water

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