Pretreatment method for improving efficiency and stability of culture wastewater treatment by ABR
The invention discloses a pretreatment method for improving efficiency and stability of culture wastewater treatment by ABR. The pretreatment method comprises the following steps: S1: starting an ABRanaerobic baffled reactor; S2: performing a preliminary adjustment on bacteria in activated sludge us...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a pretreatment method for improving efficiency and stability of culture wastewater treatment by ABR. The pretreatment method comprises the following steps: S1: starting an ABRanaerobic baffled reactor; S2: performing a preliminary adjustment on bacteria in activated sludge using a method of increasing a concentration of NH -N in a staged manner; and S3: performing anadjustment on bacteria in the activated sludge using a method of shortening a hydraulic retention time in a staged manner. The culture wastewaters are treated by the ABR reactor subjected to the pretreatment method, and the ABR reactor is stable in operation, long in operation time, capable of treating high ammonia nitrogen and COD culture wastewaters, good in treatment effects and the like.
本发明公开了种提高ABR处理养殖废水效率和稳定性的预处理方法,包括以下步骤:S1:启动ABR厌氧折流板反应器;S2:采用阶段提高NH-N浓度的方法对活性污泥中的菌进行初步调整;S3:采用阶段缩短水力停留时间的方法对活性污泥中的菌进行调整。经该预处理方法后的ABR反应器处理养殖废水,具有运行稳定且运行时间长、能处理高氨氮和COD养殖废水且处理效果好等优点。 |
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