Department of Civil and Environmental Engineering, Colorado State University, Campus Delivery 1372, Fort Collins, CO, 80523, USA.
Environ Sci Pollut Res Int. 2019 Sep;26(27):27915-27929. doi: 10.1007/s11356-019-05761-3. Epub 2019 Jul 26.
The effectiveness of nutrient removal approaches was quantified at four wastewater treatment facilities (WWTFs) using mechanistic models. Generalized empirical models were developed applying statistical methods on the predicted values characterizing nutrient removal as a function of influent wastewater quality. The empirical models provide a framework to estimate nutrient removal effectiveness and inform system-level decisions on technology adoption. When carbon limited, more sophisticated approaches like five-stage Bardenpho and nitrite shunt provide the most notable benefit in removal efficiency (67% ± 3.3% and 89% ± 2.8%, respectively for total nitrogen (TN)), but little benefit is estimated under non-carbon-limited conditions between traditional solutions like anaerobic, anoxic, oxic (A2O), and advanced process configurations like five-stage Bardenpho (82% ± 2.8% and 85% ± 3.3%, respectively for TN). Sidestream physical/chemical processes can provide improvement in removal efficiency particularly at carbon-limited WWTFs, but negligible benefit is estimated with adoption of sidestream biological processes.
采用机理模型，在四个污水处理厂（WWTF）定量评估营养物去除方法的效果。通过统计学方法对预测值进行分析，建立了广义经验模型，这些预测值是营养物去除效果的特征值，作为进水水质的函数。经验模型提供了一个估计营养物去除效果的框架，并为技术采用的系统级决策提供信息。在碳受限的情况下，更复杂的方法，如五阶段 Bardenpho 和亚硝酸盐分流，在去除效率方面提供了最显著的优势（总氮（TN）分别为 67%±3.3%和 89%±2.8%），但在非碳受限条件下，传统方法如厌氧、缺氧、好氧（A2O）和高级工艺配置如五阶段 Bardenpho（TN 分别为 82%±2.8%和 85%±3.3%）之间，估计没有什么好处。侧流物理/化学工艺可以提高去除效率，特别是在碳受限的 WWTF，但采用侧流生物工艺估计没有什么好处。
