A strain SDU10 was isolated from swine manure compost and identified as Pseudomonas stutzeri SDU10. It demonstrated excellent capability in NH4+-N removal. Optimal conditions of NH4+-N removal were determined, which were sodium acetate as the optimal carbon source, carbon to nitrogen (C/N) ratio of 10, temperature of 30 °C, pH of 7.0. Especially, P. stutzeri SDU10 could remove high concentration NH4+-N of 1500.0 and 2000.0 mg/l in 120 h with the NH4+-N removal rates of 91.1% and 61.6%, respectively. In batch experiments, the highest NH4+-N removal rate of 97.6% and chemical oxygen demand (COD) removal rate of 94.2% were obtained at initial C/N ratio 10 during piggery wastewater treatment using P. stutzeri SDU10. Results showed that P. stutzeri SDU10 had the potential for treatment of wastewater of high NH4+-N concentration.

中文翻译：

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新分离的异养硝化-好氧反硝化细菌 Pseudomonas Stutzeri SDU10 去除氨及其在处理猪舍废水中的潜力

从猪粪堆肥中分离出一株 SDU10，鉴定为施氏假单胞菌 SDU10。它表现出出色的 NH4+-N 去除能力。确定了去除NH4+-N的最佳条件，乙酸钠为最佳碳源，碳氮(C/N)比为10，温度为30°C，pH值为7.0。特别是，P. stutzeri SDU10 可以在 120 小时内去除 1500.0 和 2000.0 mg/l 的高浓度 NH4+-N，NH4+-N 去除率分别为 91.1% 和 61.6%。在批量实验中，使用 P. stutzeri SDU10 在初始 C/N 比为 10 时获得了 97.6% 的最高 NH4+-N 去除率和 94.2% 的化学需氧量 (COD) 去除率。结果表明，P. stutzeri SDU10 具有处理高 NH4+-N 浓度废水的潜力。