Premium
The Use of High‐Rate Nitrification for the Pretreatment of Ammoniacal Digested Sludge Liquors
Author(s) -
Barnes L. M.
Publication year - 2000
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.1747-6593.2000.tb00285.x
Subject(s) - anaerobic digestion , effluent , ammoniacal nitrogen , sewage treatment , wastewater , waste management , activated sludge , environmental science , ammonia , nitrification , pulp and paper industry , environmental engineering , chemistry , engineering , nitrogen , methane , organic chemistry
Anaerobic sludge digestion reduces most of the organic nitrogen in raw sludge to ammonia. Where the digested sludge is dewatered, the ammonia in the liquors can represent up to 25% of the total ammonia load on the receiving wastewater‐treatment plant. This can cause problems with compliance and also limit the throughput of the digestion plant. The paper describes how Anglian Water addressed this problem at Cliff Quay wastewater‐treatment plant, Ipswich by installing the Amtreat TM high‐rate nitrifying process. The reasons for the necessity to reduce the ammonia load to the plant are presented and the rationale behind the selection of this solution is outlined. The Amtreat TM plant is described and its performance is evaluated. The Cliff Quay site is the first application of this process to a municipal wastewater‐treatment plant in the UK, although there are several installations operating with industrial effluents.