Water Research 2012-12-01

Operational factors affecting the bioregeneration of mono-amine modified silica loaded with Acid Orange 7.

Waheeba Ahmed Al-Amrani, Poh-Eng Lim, Chye-Eng Seng, Wan Saime Wan Ngah

Index: Water Res. 46(19) , 6419-29, (2012)

Full Text: HTML

Abstract

In this study, the operational factors affecting the bioregeneration of AO7-loaded MAMS particles in batch system, namely redox condition, initial acclimated biomass concentration, shaking speed and type of acclimated biomass were investigated. The results revealed that with the use of mixed culture acclimated to AO7 under anoxic/aerobic conditions, enhancement of the bioregeneration efficiency of AO7-loaded MAMS and the total removal efficiency of COD could be achieved when the bio-decolorization and bio-mineralization stages were fully aerated with dissolved oxygen above 7 mg/L. Shorter duration of bioregeneration was achieved by using relatively higher initial biomass concentration and lower shaking speed, respectively, whereas variations of biomass concentration and shaking speed did not have a pronounced effect on the bioregeneration efficiency. The duration and efficiency of bioregeneration process were greatly affected by the chemical structures of mono-azo dyes to which the biomasses were acclimated.Copyright © 2012 Elsevier Ltd. All rights reserved.

Related Compounds

  • Acid Orange 7

Related Articles:

Probing the radical chemistry in UV/persulfate-based saline wastewater treatment: kinetics modeling and byproducts identification.

2014-08-01

[Chemosphere 109 , 106-12, (2014)]

Analysis and testing of biological stains--the Biological Stain Commission Procedures.

2002-01-01

[Biotech. Histochem. 77(5&6) , 237-275, (2002)]

Photocatalytic behavior of nanosized TiO2 immobilized on layered double hydroxides by delamination/restacking process.

2012-11-01

[Environ. Sci. Pollut. Res. Int. 19(9) , 3709-18, (2012)]

Oxidative degradation of acid orange 7 using Ag-doped zinc oxide thin films.

2012-12-05

[J. Photochem. Photobiol. B, Biol. 117 , 262-8, (2012)]

Investigations on the binding of human hemoglobin with orange I and orange II

2012-08-01

[J. Photochem. Photobiol. B, Biol. 113 , 14-21, (2012)]

More Articles...