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Startup of a Partial Nitritation‐Anammox MBBR and the Implementation of pH‐Based Aeration Control
Author(s) -
Klaus Stephanie,
Baumler Rick,
Rutherford Bob,
Thesing Glenn,
Zhao Hong,
Bott Charles
Publication year - 2017
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143017x14902968254476
Subject(s) - anammox , moving bed biofilm reactor , aeration , effluent , alkalinity , wastewater , bioreactor , pulp and paper industry , ammonia , sewage treatment , chemistry , environmental science , ammonium , environmental engineering , waste management , biofilm , nitrogen , denitrification , engineering , denitrifying bacteria , organic chemistry , biology , bacteria , genetics
The single‐stage deammonification moving bed biofilm reactor (MBBR) is a process for treating high strength nitrogen waste streams. In this process, partial nitritation and anaerobic ammonia oxidation (anammox) occur simultaneously within a biofilm attached to plastic carriers. An existing tank at the James River Treatment Plant (76 ML/d) in Newport News, Virginia was modified to install a sidestream deammonification MBBR process. This was the second sidestream deammonification process in North America and the first MBBR type installation. After 4 months the process achieved greater than 85% ammonia removal at the design loading rate of 2.4 g /m 2 ·d (256 kg /d) signaling the end of startup. Based on observations during startup and process optimization phases, a novel pH‐based control system was developed that maximizes ammonium removal and results in stable aeration and effluent alkalinity.