School of Water Resources and Environment, China University of Geosciences, No. 29 Xueyuan Road, Beijing 100083, China.
Bioresour Technol. 2012 Jan;104:12-8. doi: 10.1016/j.biortech.2011.08.086. Epub 2011 Aug 26.
This study aimed to evaluate the performances of sequencing batch biofilm reactors (SBBRs) in removing nitrogen and phosphorus from synthetic municipal wastewater with different carbon to total nitrogen (C/N) ratios. The effect of control systems, including an intelligent control system (ICS) and conventional timer control system (TCS) on the performance of SBBRs was also investigated. When C/N ratios were 10.0, 5.0 and 3.3, the average COD removal efficiencies in the ICS-SBBR reached 87.7%, 92.3% and 97.6%, while total phosphorous (TP) removals reached 95.0%, 97.0% and 97.2%. When the C/N ratio was 5.0, the TN removal efficiency was 81.0% under ICS and 65.4% under TCS. Moreover, compared with TCS-SBBR, both reaction time and aeration time were shortened by 180 min and 157 min, respectively, in the ICS-SBBR. Therefore, the ICS-SBBR has potential in practical applications for significant nitrogen and phosphorus removal and energy savings.
本研究旨在评估序批式生物膜反应器（SBBR）在不同碳氮比（C/N）的合成城市废水中去除氮磷的性能。还研究了控制系统，包括智能控制系统（ICS）和传统定时器控制系统（TCS）对 SBBR 性能的影响。当 C/N 比分别为 10.0、5.0 和 3.3 时，ICS-SBBR 的平均 COD 去除率分别达到 87.7%、92.3%和 97.6%，而总磷（TP）的去除率分别达到 95.0%、97.0%和 97.2%。当 C/N 比为 5.0 时，ICS 下的 TN 去除效率为 81.0%，TCS 下为 65.4%。此外，与 TCS-SBBR 相比，ICS-SBBR 分别缩短了 180 分钟和 157 分钟的反应时间和曝气时间。因此，ICS-SBBR 具有在实际应用中进行有效脱氮除磷和节能的潜力。
