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发明公开
CN103539258A 一种利用高FA的亚硝化颗粒污泥恢复方法 无效 - 撤回

一种利用高FA的亚硝化颗粒污泥恢复方法
摘要：
一种利用高FA的亚硝化颗粒污泥恢复方法属于城市生活污水处理与资源化领域。本发明是在常温条件下，以生活污水为基础用水，通过控制进水的氨氮质量浓度和曝气时间来实现亚硝化颗粒污泥的恢复，其特点在于能够将颗粒污泥的亚硝化性能在短时间内得到恢复。进出水FA分别为6-8mg/L和1-2mg/L来实现亚硝化颗粒污泥的恢复。由于游离氨(free ammonia,FA)对亚硝酸盐氧化菌(nitrite oxidizing bacteria,NOB)和氨氧化菌(ammonia oxidizing bacteria,AOB)产生抑制作用的浓度为0.1-1.0mg/L和10-150mg/L，当FA浓度达到6mg/L时就可完全抑制NOB的生长。因此，通过控制进出水FA来实现亚硝化颗粒污泥的恢复。
摘要（英）：

The invention relates to a nitrosation granular sludge recovery method utilizing high FA, and belongs to the fields of domestic sewage treatment and resource utilization. According to the invention, under normal temperature, domestic sewage is adopted as basic water, and nitrosation granular sludge recovery is realized through controlling inlet water ammonia nitrogen mass concentration and aeration time. The method is characterized in that granular sludge nitrosation performance can be recovered within a short period. Inlet and outlet water FA are respectively 6-8mg/L and 1-2mg/L, such that nitrosation granular sludge recovery can be realized. Because free ammonia (FA) has inhibition concentrations of 0.1-1.0mg/L and 10-150mg/L respectively upon nitrite oxidizing bacteria (NOB) and ammonia oxidizing bacteria (AOB), when FA concentration reaches 6mg/L, NOB growth can be completely inhibited. Therefore, through inlet water and outlet water FA, nitrosation granular sludge recovery can be realized.

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