Author:
Zhang Jingbing,Shao Yuting,Liu Guohua,Qi Lu,Wang Hongchen,Xu Xianglong,Liu Shuai
Abstract
AbstractWastewater characterization is the basis for process design and operation optimization of wastewater treatment plants (WWTPs). In this work, a comprehensive study of the respirometry method has been performed to evaluate the biodegradable organic matters of wastewater. First, the optimal initial substrate to biomass ratio (S0/X0) was confirmed. Second, under the optimal S0/X0, the degradation curves of wastewater carbon oxygen demand (COD) components rapidly biodegradable COD (RBCOD) and slowly biodegradable COD (SBCOD) were obtained. Third, the Mann–Kendall test was performed to confirm the time point (t2) when endogenous respiration levels were reached, and the hydrolysis model was used to determine the time point (t1) of the SBCOD degradation stage. Considering the results, an adequate wastewater COD characterization method for RBCOD and SBCOD has been proposed. This study provides strong support to carry out effective and feasible process design, process diagnosis and optimization capability, can help achieve refined and stable operational management of WWTPs.
Publisher
Springer Science and Business Media LLC
Reference32 articles.
1. Yu, C. et al. Managing nitrogen to restore water quality in China. Nature 567, 516–520 (2019).
2. Feng, Y., Chiu, Y. & Liu, F. Measuring the performance of wastewater treatment in China. Appl. Sci. 9, 153 (2019).
3. Chen, X. Analysis of discharge standards of wastewater treatment plants in Yangtze River delta region and consideration of the measures for upgrading. Water Wastewater Eng. 55, 29–32 (2019) (in Chinese).
4. MOHURD (Ministry of Housing and Urban–Rural Development). Pollutant discharge standard for urban sewage treatment plants (GB18918-2002) (2002). (in Chinese).
5. Brdjanovic, D., Meijer, S., Lopez-Vazquez, C. Applications of Activated Sludge Models (IWA Publishing, America, 2015).
Cited by
13 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献