A new biological process for ammonia removal from flows containing hundreds to thousands milligrams NH+4 per litre has been developed at the Delft University of Technology. The SHARON process operates at a high temperature (30–40 °C) and pH (7–8). The process is performed without sludge retention. This enables the prevention of nitrite oxidation, leading to lower operational costs. Denitrification is used to control the pH. A full scale plant was designed (1500 m3) based on kinetic and stoichiometric parameters determined at 1.5 1. scale and model predictions. Total costs are estimated at about $1.7 per kg removed NH4+-N. The first full scale SHARON plant will be operational at the Dokhaven waste water treatment plant in Rotterdam in the beginning of 1998. This contribution focuses on the principles of the process and evaluates conditions for which application seems feasible.
Skip Nav Destination
Article navigation
Research Article|
May 01 1998
The sharon process: an innovative method for nitrogen removal from ammonium-rich waste water
C. Hellinga;
C. Hellinga
*Department of Biochemical Engineering, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands
Search for other works by this author on:
A. A. J. C. Schellen;
A. A. J. C. Schellen
**Water Authority Hollandse Eilanden en Waarden, P.O. Box 469, 3300 AL Dordrecht, The Netherlands
Search for other works by this author on:
J. W. Mulder;
J. W. Mulder
***Grontmij Consultants, P.O. Box 203, 3730 AE, de Bilt, The Netherlands
Search for other works by this author on:
M. C. M. van Loosdrecht;
M. C. M. van Loosdrecht
*Department of Biochemical Engineering, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands
Search for other works by this author on:
J. J. Heijnen
J. J. Heijnen
*Department of Biochemical Engineering, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands
Search for other works by this author on:
Water Sci Technol (1998) 37 (9): 135–142.
Citation
C. Hellinga, A. A. J. C. Schellen, J. W. Mulder, M. C. M. van Loosdrecht, J. J. Heijnen; The sharon process: an innovative method for nitrogen removal from ammonium-rich waste water. Water Sci Technol 1 May 1998; 37 (9): 135–142. doi: https://doi.org/10.2166/wst.1998.0350
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
eBook
Pay-Per-View Access
$38.00