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CN103086502A 一种SBR亚硝化快速恢复方法 无效 - 撤回

一种SBR亚硝化快速恢复方法
摘要：
一种SBR亚硝化快速恢复方法属于城市污水处理与资源化领域。对长期稳定运行遭到破坏的污泥置于SBR反应器中。改变运行条件，进水氨氮浓度为200-400mg/L，控制曝气量使溶解氧在1.0-2.0mg/L，控制曝气时间，氨氧化率控制在90%-99%，pH调控在7.70-8.20，温度保持不变。4天8个周期成功实现了亚硝化的快速恢复，亚硝化率90%以上。在此条件下稳定运行7天14个周期以上，亚硝化率一直在90%以上。将运行条件恢复到原来水平，进水氨氮浓度50±5mg/L，控制曝气使溶解氧维持在0.8-1.0 mg/L，温度控制保持25±1℃，亚硝化率仍能维持90%以上，并实现了在该条件下亚硝化的长期稳定运行。本发明解决了长期以来亚硝化遭到破坏后恢复慢的难题，为亚硝化实现快速恢复和稳定运行提供了技术保障。
摘要（英）：

The invention discloses a rapid styrene butadiene rubber (SBR) nitrosoation recovery method and belongs to the fields of urban sewage treatment and resources. The sludge of which the long-term stable operation is damaged is arranged in an SBR reactor. The operation conditions are changed, the water inlet ammonia nitrogen concentration is 200-400 mg/L, the aeration rate is controlled, so that the dissolved oxygen is 1.0-2.0mg/L, the aeration time is controlled, the ammonia oxidation rate is controlled to be 90-99 percent, the pH is regulated to be 7.70-8.20, and the temperature is kept invariable. The rapid nitrosoation recovery is realized within four days in eight periods, and the nitrosoation rate is over 90 percent. The stable operation time reaches over seven days in 14 periods under the conditions, and the nitrosoation rate is always over 90 percent. The operating conditions are recovered to the original level, the water inlet ammonia nitrogen concentration is 50+/-5mg/L, the nitrosoation rate can be maintained to be over 90 percent, and long-term stable operation of nitrosoation under the condition is realized. The problem that the nitrosoation is damaged and is slowly recovered for a long time is solved, and a technical guarantee is provided for realizing rapid recovery and stable operation for nitrosoation.

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