Institute of Water Quality Control, Technische Universität München, Am Coulombwall, 85748 Garching, Germany.
Bioresour Technol. 2012 Mar;107:70-7. doi: 10.1016/j.biortech.2011.12.025. Epub 2011 Dec 14.
A single stage nitritation-anammox SBR was operated for 300 days to investigate the impact of cycle operation strategies on process performance and the oxidation-reduction potential (ORP) as process monitoring parameter. Different combinations of feeding (interval, continuous, one-time) and aeration (interval, continuous) strategies were tested revealing that interval feeding and interval aeration was the most suitable case in terms of process performance (ammonium removal, nitrate production and pH stability) and use of the ORP value as indicator parameter. Further investigations into the use of the ORP value showed clear correlations of the ORP slope with the air flow rate and the maximum ORP peak with the ammonium loading under varying operation conditions. Depletion of the main substrates (ammonium and oxygen) was also detectable fastest following the ORP value proofing its worth for process control.
采用单级 SBR 工艺实现短程硝化-厌氧氨氧化，连续运行 300 天，考察了不同的运行策略（间歇进水、连续进水、一次进水和间歇曝气、连续曝气）对系统性能的影响，以及氧化还原电位（ORP）作为过程监测参数的可行性。结果表明，就工艺性能（氨氮去除、硝酸盐生成和 pH 稳定性）和 ORP 值作为指示参数而言，间歇进水和间歇曝气是最适合的条件。进一步研究 ORP 值的应用表明，ORP 斜率与空气流量之间存在明显的相关性，最大 ORP 峰值与不同运行条件下的氨氮负荷之间存在相关性。ORP 值也能最快地检测到主要基质（氨氮和氧气）的消耗，这证明了它在过程控制中的价值。
