A sewage treatment system

Abstract

The invention relates to a sewage treatment system, which includes a sedimentation tank, a regulating tank and a storage tank connected in sequence through a water delivery pipe, and also includes a pretreatment device between the sedimentation tank and the sewage outlet of the factory. The pretreatment device includes a treatment tank, One side of the treatment tank is connected with the water pipe, and the other side is connected with the sedimentation tank through a water delivery pipe; a filter device is installed obliquely on one side of the water delivery pipe in the treatment tank, and the filter device includes a frame, a roller shaft, a filter screen, and a drive The motor that rotates the roller shaft; the processing tank is located under the higher side of the frame, and a hopper is installed, and a liquid spray pipe parallel to the roller shaft is arranged in the frame, and several outlets are connected to the filter screen on the side of the hopper on the liquid spray pipe. The spray nozzle communicates with the still water chamber through the liquid inlet pipe, and the liquid inlet pipe is provided with a drive pump. The invention has the advantages of improving the separation efficiency of sundries and sewage, reducing the sundries entering into the adjustment tank, and ensuring the treatment effect of chemical substances on sewage.

Description

technical field [0001] The invention relates to the technical field of textile sewage treatment, in particular to a sewage treatment system. Background technique [0002] At present, the textile industry is one of the pillar industries of our country. While it is driving the economy of our country, it is also the industry with the most serious water pollution problem except steel and paper making industries. At present, the textile industry puts the treated water into the storage tank after sedimentation and adjustment, and then discharges it into nature or recycles the treated water as industrial water. In this technology, the adjustment link generally uses materials such as high-salt resin to treat sewage. If there is a problem in the adjustment link, it is not only necessary to supplement the adjustment materials in the adjustment tank, but also to shut down the entire production line, and at the same time pump out the water in the storage tank to decontaminate again, wh...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: when the sewage is settled, the preliminary solid-liquid separation work is completed purely by time and the gravity of the sundries, while the textile sewage contains a large amount of fabric fiber sundries, such as If only relying on the sedimentation tank for separation, on the one hand, it will take a long time to separate, on the other hand, during the process of transporting the sewage in the sedimentation tank to the regulating tank, it will have an impact on the sundries in the sedimentation tank, causing the sundries in the sedimentation tank to be separated. The sewage enters the regulating tank, and the debris will affect the treatment effect of the chemical substances in the regulating tank on the sewage

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