To effectively treat actual ammonia-rich Chinese medicine residue (CMR) resource utilization wastewater, we optimized an anaerobic-microaerobic two-stage expanded granular sludge bed (EGSB) and moving bed sequencing batch reactor (MBSBR) combined process. By controlling dissolved oxygen (DO) levels, impressive removal efficiencies were achieved. Microaeration, contrasting with anaerobic conditions, bolstered dehydrogenase activity, enhanced electron transfer, and enriched the functional microorganism community. The increased relative abundance of Synergistetes and Proteobacteria facilitated hydrolytic acidification and fostered nitrogen and phosphorus removal. Furthermore, we examined the impact of DO concentration in MBSBR on pollutant removal and microbial metabolic activity, pinpointing 2.5 mg/L as the optimal DO concentration for superior removal performance and energy conservation.

中文翻译：

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中药渣利用富氨废水序贯生物处理：溶解氧调节


为了有效处理实际的富氨中药渣（CMR）资源化废水，我们优化了厌氧-微氧两级膨胀颗粒污泥床（EGSB）和移动床序批式反应器（MBSBR）组合工艺。通过控制溶解氧 (DO) 水平，实现了令人印象深刻的去除效率。与厌氧条件相比，微通气增强了脱氢酶活性，增强了电子传递，并丰富了功能微生物群落。增效菌和变形菌相对丰度的增加促进了水解酸化并促进了氮和磷的去除。此外，我们还研究了 MBSBR 中 DO 浓度对污染物去除和微生物代谢活动的影响，确定 2.5 mg/L 作为最佳 DO 浓度，以实现卓越的去除性能和节能。