B Durmaz1, F D Sani. 1. Department of Environmental Engineering, Middle East Technical University, Ankara, Turkey.
Abstract
Effect of carbon to nitrogen ratio (C/N) on the sludge extracellular polymer composition is studied in synthetically fed semi-continuous reactors with 8 days of sludge age. Results show that C/N ratio influences the relative distribution of polymer carbohydrate and protein. At low C/N ratio of 5, polymer extracts have high protein and low carbohydrate content. As the C/N ratio is increased to 17.5 and then to 40, carbohydrate concentration increases sharply and protein concentration decreases.
Effect of carbon to n class="Chemical">nitrogen ratio (C/N) on the sludge extracellular polymer composition is studied in synthetically fed semi-continuous reactors with 8 days of sludge age. Results show that C/N ratio influences the relative distribution of polymer carbohydrate and protein. At low C/N ratio of 5, polymer extracts have high protein and low carbohydrate content. As the C/N ratio is increased to 17.5 and then to 40, carbohydrate concentration increases sharply and protein concentration decreases.
Authors: C Juárez-Ramírez; R Velázquez-García; N Ruiz-Ordaz; J Galíndez-Mayer; O Ramos Monroy Journal: J Ind Microbiol Biotechnol Date: 2012-04-11 Impact factor: 3.346