scholarly journals Removal of Hexavalent Chromium from Synthetic Wastewater Using Alginate Immobilized Cyanobacteria: Experiment and Mathematical Modeling

2020 ◽  
Vol 37 (4) ◽  
pp. 283-294
Author(s):  
Sushovan Sen ◽  
Abhishek Dutta ◽  
Rambabu Ponnala ◽  
Biswajit Kamila ◽  
Pranas Baltrėnas ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Hexavalent Chromium ◽  
Synthetic Wastewater

Mathematical modeling of hexavalent chromium decontamination from low surface charged soils

1997 ◽  
Vol 55 (1-3) ◽  
pp. 93-107 ◽  
Author(s):  
Bala S. Haran ◽  
Branko N. Popov ◽  
Guanghong Zheng ◽  
Ralph E. White
Keyword(s):  
Mathematical Modeling ◽  
Hexavalent Chromium

scholarly journals Application of Mechanical Relations in Mathematical Modeling to Oxygenate Synthetic Wastewater through a Circular Rotary Aerator

2021 ◽  
Vol 809 (1) ◽  
pp. 012020
Author(s):  
Cornejo Tueros Jose Vladimir ◽  
Sanabria Perez Elias Adrian ◽  
Elias Adrian ◽  
Cuñivo Muñico Danitza Mayli ◽  
Guevara Yanqui Pascual Victor ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Synthetic Wastewater

scholarly journals Performance of Laterite Soil Grains as Adsorbent in the Removal of Chromium

2015 ◽  
Vol 10 (1) ◽  
pp. 270-280 ◽  
Author(s):  
I Syama ◽  
Arun Thalla ◽  
D Manu
Keyword(s):  
Hexavalent Chromium ◽  
Removal Efficiency ◽  
Freundlich Isotherm ◽  
Synthetic Wastewater ◽  
Batch Adsorption ◽  
Ferric Ion ◽  
Column Studies ◽  
Adsorbent Dosage ◽  
Adsorbate Concentration ◽  
Percentage Removal

The present study aims to examine the efficiency of laterite grains (LG) and acid activated laterite grains (AALG) as an adsorbent for removal hexavalent chromium and ferric ion from synthetic wastewater, under laboratory conditions. Adsorption of hexavalent chromium and ferric ion from synthetic wastewater is examined by batch and column studies wherein it is found to be dependent on pH, Contact time, adsorbent dosage and initial adsorbate concentration. Percentage removal enhances with the increase in adsorbent dosage and with low pH, the optimal removal is achieved at pH=2. AALG is found to investigate possibility of improvement in removal efficiency of hexavalent chromium. The removal efficiency of AALG is found to be significantly higher than the efficiency obtained from LG, at pH=7. An adsorbent dosage 2g of LG is found to be optimum for removal of ferric ion with low initial concentration of 2.5 mg/L. The equilibrium adsorption data obtained from batch studies were fitted with Langmuir and freundlich isotherm for both hexavalent chromium and ferric ions. The percentage removal obtained from batch adsorption studies were found to be higher than that obtained by column studies for both the adsorbates.

Cerebral Blood Circulation in Premature Infants by Means of Mathematical Modeling

2015 ◽  
Vol 46 (S 01) ◽  
Author(s):  
R. Lampe ◽  
N. Botkin ◽  
V. Turova ◽  
T. Blumenstein ◽  
A. Alves-Pinto
Keyword(s):  
Mathematical Modeling ◽  
Premature Infants ◽  
Blood Circulation ◽  
Cerebral Blood Circulation
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