RSA, Genesis Technology Center, Fayetteville, AR, USA.
modelEAU-Department of Civil and Water Engineering, Université Laval, Québec City, QC, Canada.
Water Environ Res. 2021 Sep;93(9):1510-1515. doi: 10.1002/wer.1541. Epub 2021 May 27.
The standard 5-day biochemical oxygen demand (BOD ) measurement of water quality is used widely as a design parameter for water resource recovery facilities (WRRFs). This measure usually includes a component of nitrogenous oxygen demand (NOD) that can cause oversizing of biological processes and under-evaluation of process capacity. Carbonaceous BOD (CBOD ) more closely represents oxygen demand associated with biodegradation of organic constituents of a wastewater than does BOD and therefore should be used as a basis for sizing aerobic treatment processes. Nitrogenous oxygen demand or reduced nitrogen content should be used as a loading and process performance parameter for nitrogen removal processes. PRACTITIONER POINTS: Oxygen demand for aerobic biodegradation reactions typically is divided into two major categories-carbonaceous biochemical oxygen demand (CBOD) and nitrogenous oxygen demand (NOD). Use of BOD as a design parameter and CBOD as an effluent water quality parameter distorts the true performance and loading rate capacity of a treatment plant. Carbonaceous BOD (CBOD ) more closely represents oxygen demand associated with biodegradation of organic constituents of a wastewater than does BOD and therefore should be used as a basis for sizing and evaluating the performance of aerobic treatment processes. Nitrogenous oxygen demand or reduced nitrogen content should be used as a loading and process performance parameter for nitrogen removal processes.
水质的标准五日生化需氧量（BOD）测量被广泛用作水资源回收设施（WRRF）的设计参数。该测量通常包括含氮需氧量（NOD）的一个组成部分，这可能导致生物过程过大和过程能力低估。与废水有机成分的生物降解相关的需氧量比 BOD 更能被碳素生化需氧量（CBOD）所代表，因此应将其用作需氧量测定大小的基础。氮去除过程应将含氮需氧量或还原氮含量用作负荷和过程性能参数。
好氧生物降解反应的需氧量通常分为两个主要类别-碳素生化需氧量（CBOD）和含氮需氧量（NOD）。将 BOD 用作设计参数和 CBOD 用作出水水质参数会扭曲处理厂的真实性能和负荷率容量。与废水有机成分的生物降解相关的需氧量比 BOD 更能被碳素生化需氧量（CBOD）所代表，因此应将其用作需氧量测定大小的基础。氮去除过程应将含氮需氧量或还原氮含量用作负荷和过程性能参数。
