Research on the engineering of anammox process for treating iron oxide red wastewater
YANG Jun-feng1, CHEN Zhen-guo2,3, ZHENG Xu-wen2, ZHANG yu1, LI Jia-yi1, ZHOU Song-wei2, WANG Xiao-jun1,2
1. School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; 2. Hua An Biotech Co., Ltd., Foshan 528300, China; 3. School of Environment, South China Normal University, Guangzhou 510006, China
Abstract：In this study, a full-scale CANON system was constructed to treat high ammonia nitrogen iron oxide wastewater following physicochemical pretreatment. Over the course of 165days of continuous operation, the CANON system demonstrated excellent stability and shock resistance, achieving ammonia and total nitrogen removal efficiencies (TNRE) of 90% and 80%, respectively. Spearman correlation analysis and SHAP feature importance analysis were employed to elucidate the impact of water quality and environmental parameters on TNRE. Microbial community profiling unveiled substantial shifts in microbial population structures within the system, marked by the transition of the dominant anammox bacteria from Candidatus Anammoxoglobus to Candidatus Kuenenia, accounting for a relative abundance of 13.22%. Nitrosomonas was identified as the predominant ammonium-oxidizing bacteria with a relative abundance of 1.27%. Additionally, a machine learning model based on XGBoost was developed, which achieved a predictive accuracy of over 99.9% for TNRE, with a prediction precision of 98% for new data points in practical applications. This research provides valuable empirical insights into the engineering application and intelligent development of anammox processes.
杨俊锋, 陈振国, 郑旭文, 章裕, 李嘉懿, 周松伟, 汪晓军. 厌氧氨氧化工艺处理氧化铁红废水的工程研究[J]. 中国环境科学, 2025, 45(1): 158-166.
YANG Jun-feng, CHEN Zhen-guo, ZHENG Xu-wen, ZHANG yu, LI Jia-yi, ZHOU Song-wei, WANG Xiao-jun. Research on the engineering of anammox process for treating iron oxide red wastewater. CHINA ENVIRONMENTAL SCIENCECE, 2025, 45(1): 158-166.
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