Premium
A Nitrification Model for Mineral‐Media Trickling Filters
Author(s) -
Pearce P.,
Williams S.
Publication year - 1999
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1999.tb01013.x
Subject(s) - trickling filter , nitrification , ammoniacal nitrogen , effluent , environmental science , sewage , sewage treatment , environmental engineering , waste management , nitrogen , wastewater , engineering , chemistry , organic chemistry
Trickling filters represent the biological treatment component of about 70% of sewage works in the UK. Increasingly, they are being required to achieve a high degree of nitrification consistent with 95 percentile compliance with effluent discharge consents as low as 2 mg/1 of ammoniacal nitrogen. The available design models for the simultaneous removal of BOD and ammoniacal nitrogen are poor and have led to a lack of confidence in the ability of the process to comply with such standards. This paper describes the development and application of an empirical model based upon the performance of eleven sets of trickling filters at five sites covering a wide range of organic and hydraulic loading.