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Nitrification Trials at Dunnswood Sewage‐Treatment Works and Process Modelling Using WRc STOAT
Author(s) -
Smith M.,
Cooper P.,
McMurchie J.,
Stevenson D.,
Mann B.,
Stocker D.,
Bayes C.,
Member D. Clark
Publication year - 1998
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.1747-6593.1998.tb00166.x
Subject(s) - nitrification , ammoniacal nitrogen , effluent , environmental science , water quality , sewage treatment , sewage , environmental engineering , nitrogen , wastewater , chemistry , ecology , biology , organic chemistry
The paper describes an experimental programme on an existing full‐scale plant to demonstrate the conditions which are necessary to achieve nitrification. The programme was guided by parallel computer modelling of the plant using the WRc STOAT simulation package. Nitrification was successfully achieved, and the studies and computer modelling indicated how the plant should be extended to provide year‐round nitrification. The effect of storm flows on effluent quality was assessed for each process option. The effluent quality consent of 5 mg/l ammoniacal nitrogen as a 95 percentile was achieved, and there was a significant improvement in river water quality with respect to ammoniacal nitrogen.