| 生活污水处理设备 |
| 添加时间：2018/5/2 14:55:43 浏览次数： |
| 生活污水处理设备工作原理 Working principle of domestic sewage treatment equipment 系列污水处理设备去除有机污染物及氨氮主要依赖于设备中的AO生物处理工艺。其中工作原理是在A级，由于污水有机物浓度很高，微生物处于缺氧状态，此时微生物为兼性微生物，所以A级池不仅具有一定的有机物去除功能，减轻后续好氧池的有机负荷，有机物浓度降低，但仍有一定量的有机物及较高NH3-N存在。为了使有机物得到进一步氧化分解，同时在碳化作用下硝化作用能顺利进行，在O级设置有机负荷较低的好氧生物接触氧化池。在O级池中主要存在好氧微生物及自氧型细菌（硝化菌）。其中好氧微生物将有机物分解成CO2和H2O；自养型细菌（硝化菌）利用有机物分解产生的无机碳或空气中的CO2作为营养源，将污水中的NH3-N转化成NO-2-N、NO-3-N，O级池的出水部分回流到A级池，为A级池提供电子接受体，通过反硝化作用最终消除氮污染。 The removal of organic pollutants and ammonia nitrogen in a series of sewage treatment equipment is mainly dependent on the AO biological treatment process in the equipment. The working principle is in a class. Because the concentration of organic matter in the sewage is very high and the microorganism is in the anoxic state, the microorganism is a facultative microorganism at this time, so the tank not only has a certain organic matter removal function, but also reduces the organic load of the subsequent aerobic pool, the organic substance concentration is reduced, but there is still a certain amount of organic matter and high NH3-N. Existence. In order to make the organic matter be further oxidized and decompose, and the nitrification can be carried out smoothly under the carbonization, the aerobic biological contact oxidation tank with low organic load is set at the O level. Aerobic bacteria and autotrophic bacteria (nitrifying bacteria) exist in O pools. Aerobic microorganisms decompose organic compounds into CO2 and H2O; autotrophic bacteria (nitrifying bacteria) use organic carbon or CO2 in the air as nutrient sources, convert NH3-N in sewage into NO-2-N and NO-3-N, and the effluent from the O pool is reflued to a level pool to provide an electronic acceptor for a level pool, and by reverse nitriding. In the end, nitrogen pollution is eliminated. |
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