Recovery of heterocyclic amines from dilute aqueous waste streams

Pahari, Pradip K.; Sharma, Man Mohan

doi:10.1021/ie00056a030

Cited by 13 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The throughput volume of dye solution was increased with the increase in bed height due to the increase in surface area of adsorbent which provided more binding site for the adsorption more number of sorption sites (Pahari and Sharma, 1991). …”

Section: Effect Of Bed Heightmentioning

confidence: 99%

“…The effect of bed height for adsorption of AY17 dye onto TSP bed at heights of 5, 10, 15, and 20 cm at influent concentration 200 ppm and flow rate of 15 mL/min is shown in Figure 5, which indicated that breakthrough times and the exhausting times for the bed heights of 5-20 cm were increasing from 30 to 285 and 210 to 540 min, respectively. The throughput volume of dye solution was increased with the increase in bed height due to the increase in surface area of adsorbent which provided more binding site for the adsorption more number of sorption sites (Pahari and Sharma, 1991).…”

Section: Effect Of Bed Heightmentioning

confidence: 99%

See 1 more Smart Citation

Fixed bed column adsorption of ACID Yellow 17 dye onto Tamarind Seed Powder

Patel¹,

Vashi²

2011

Can J Chem Eng

View full text Add to dashboard Cite

The intention of this study was to explore the efficacy and feasibility for Acid Yellow 17 adsorption onto fixed bed column of Tamarind Seed Powder. The effect of various parameters like flow rate, initial concentration of dye, bed height, and pH were exploited in this study. The Thomas, Yoon-Nelson, Bed Depth Service Time (BDST), and Adams and Bohart model were analysed to evaluate the column adsorption performance. The adsorption capacity, rate constant and correlation coefficient associated to each model for column adsorption was calculated and mentioned. The adsorption capacity increases with increasing initial dye concentration and bed height and decreasing flow rate. The maximum adsorption capacity related to Adams and Bohart model was found to be 978.5 mg/g at initial concentration of 50 ppm at constant flow rate of 15 mL/min, bed height of 15 cm, and pH 7.

show abstract

Section: Effect Of Bed Heightmentioning

confidence: 99%

Section: Effect Of Bed Heightmentioning

confidence: 99%

Fixed bed column adsorption of ACID Yellow 17 dye onto Tamarind Seed Powder

Patel¹,

Vashi²

2011

Can J Chem Eng

View full text Add to dashboard Cite

show abstract

“…The increase in the metal-uptake capacity with the increase of bed height in the column was due to the increase in the surface area on adsorbent which provided more binding site for the adsorption. The breakthrough time was also increased with an increase in bed height (Figure 3) [11,15]. Figure 4 represents the effect on the breakthrough curves when changing the flow rate from 6 to 10 mL/min.…”

Section: Resultsmentioning

confidence: 96%

Removal of Pb(II) Ions in Fixed‐Bed Column from Electroplating Wastewater of Bursa, an Industrial City in Turkey

Kara

Üstün

Solmaz

et al. 2013

Journal of Chemistry

View full text Add to dashboard Cite

Removal of Pb(II) ions from electroplating wastewater of Bursa, an industrial city in Turkey, was investigated in fixed-bed column. The experiments were conducted to study the effect of important design parameters such as column bed height and flow rate. The breakthrough profiles were obtained in these studies. At a bed height of 14 cm and flow rate of 6 mL/min, the metal-uptake capacity of poly(ethylene glycol dimethacrylate-1-vinylimidazole) [poly(EGDMA-VIM)] beads for Pb(II) ions was found to be 90 mg/g. Bed Depth Service Time (BDST) model was used to analyse the experimental data and evaluate the performance of adsorption column. For various flow rates, adsorption capacity per unit bed volume (N0) and adsorption rate constant (ka) are in the range of 2370–3560 mg/mL and 0.0225–0.0616 L/mg h, respectively. The saturated column was easily regenerated by 0.1 M HNO3and the poly(EGDMA-VIM) beads in fixed-bed column could be reused for Pb(II) ions removal.

show abstract

“…Aqueous wastes contaminated with pyridine have been treated using several different methods, including incineration, catalytic combustion, biological oxidation, carbon adsorption, and photocatalytic degradation. − The combustion of pyridine was studied in the temperature range of 675 and 775 °C . The nitrogen products present in the reactor effluent include N 2 , N 2 O, NO x , and HCN.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Supercritical Water Oxidation of Pyridine: Comparison of Catalysts

Aki

Abraham

1998

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The catalytic supercritical water oxidation (CSCWO) of pyridine in the presence of several catalysts such as Pt/γ-Al2O3, MnO2/γ-Al2O3, and MnO2/CeO2 was studied. Experiments conducted with α-Al2O3 and γ-Al2O3 confirmed the inertness of these catalysts toward SCWO of pyridine. Complete conversions were obtained at 370 °C in the presence of platinum catalyst. Ammonia and nitrogen oxides were not observed. Platinum catalyst favored the formation of nitrate ions and nitrous oxide whereas the MnO2 catalysts favored the formation of nitrogen and nitrate ions. The rate of pyridine oxidation was modeled assuming power-law kinetics. The results indicate that the two manganese catalysts performed similarly. The power-law analysis indicates that the rate of oxidation is first order with respect to pyridine on the manganese catalyst whereas it was found to be second order for the platinum catalyst. Two different reaction mechanisms are proposed to describe the experimental observations.

show abstract

Recovery of heterocyclic amines from dilute aqueous waste streams

Cited by 13 publications

References 9 publications

Fixed bed column adsorption of ACID Yellow 17 dye onto Tamarind Seed Powder

Fixed bed column adsorption of ACID Yellow 17 dye onto Tamarind Seed Powder

Removal of Pb(II) Ions in Fixed‐Bed Column from Electroplating Wastewater of Bursa, an Industrial City in Turkey

Catalytic Supercritical Water Oxidation of Pyridine: Comparison of Catalysts

Contact Info

Product

Resources

About