Urban sewage treatment equipment

Abstract

The invention provides urban sewage treatment equipment which comprises a filter tank and at least two sedimentation tanks, and a partition plate used for dividing an inner cavity of the filter tank into an upper filter area and a lower dosing area is arranged in the filter tank. A filtering part for filtering the sewage and automatically collecting the garbage positioned on a filtering plate is arranged in the filtering area, a stirring part for uniformly mixing the sewage and a chemical reagent is arranged in the chemical adding area, a connecting main pipeline is connected to the bottom of the filtering tank, a connecting branch pipeline is connected to the bottom of the settling tank, and the connecting branch pipeline is communicated with the main pipeline. The connecting main pipeline is connected with the connecting branch pipelines through control valves; according to the sewage treatment device, the time for completing the chemical precipitation reaction of the sewage can be greatly shortened, the whole sewage treatment process is not interrupted, the sewage treatment efficiency is obviously improved, in addition, the power of the filtering part and the power of the stirring part both come from the impact of the sewage on the turbine, additional power is not needed, and the cost needed by sewage treatment is greatly saved.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to an urban sewage treatment equipment. Background technique [0002] With the development of science and technology, environmental pollution is an increasingly serious problem. Sewage treatment is the top priority among many environmental problems. Sewage includes urban sewage and domestic sewage. If sewage cannot be completely purified, it will be directly discharged into the water circulation system of the earth. It not only destroys the ecological environment, but also enters the human body and affects human health. At present, the existing sewage treatment method is generally to filter the sewage first, and then carry out sedimentation treatment of the filtered sewage. This treatment method is relatively common, but There are many problems. For example, in the process of filtering sewage, it is necessary to remove the filter screen regularly to clean the filter screen, s...

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Problems solved by technology

[0002] With the development of science and technology, environmental pollution is an increasingly serious problem. Among them, sewage treatment is the most important of many environmental problems. Sewage includes urban sewage and domestic sewage. If the sewage cannot be completely purified, it will be directly discharged into the earth's water cycle system. In the environment, it not only destroys the ecological environment, but also enters the human body and affects human health. At present, the existing sewage treatment methods generally filter the sewage first, and then carry out sedimentation treatment on the filtered sewage. This treatment method is more common, but There are many problems. For example, in the process of filtering sewage, it is necessary to regularly remove the filter screen and clean the filter screen to prevent garbage from clogging the filter screen. However, the cleaning process is often cumbersome. The sedimentation reaction often takes a long time, which means that the whole sewage treatment process needs to be interrupted before the sewage in the sedimentation tank completes the sedimentation treatment, which greatly reduces the efficiency of sewage treatment. Therefore, it is necessary for the present invention to propose a method to solve the above problems Urban sewage treatment equipment

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