Novel sedimentation pool for sewage plant

Abstract

The invention discloses a novel sedimentation pool for a sewage plant. The novel sedimentation pool comprises a pool body, a water inlet pipe, a water distribution unit, a biological filling materialunit, a mud scraping device, a gas recovery device and a water outlet pipe, wherein the water distribution unit, the biological filling material unit, the mud scraping device, the gas recovery deviceand the water outlet pipe are arranged in the pool body; the mud scraping device comprises a mud scraping rod arranged at the bottom surface of the pool body, a driving rod fixedly connected with themud scraping rod, a rotating driving element used for driving the driving rod to rotate and a second driving element used for driving the driving rod to vertically act; the water distribution unit comprises a center pipe, a plurality of water distribution pipes and spray heads arranged on the water distribution pipe; the biological filling material unit comprises a first filling material assembly;the first filling material assembly comprises a fixing sleeve, a plurality of filling material frames and a biological filling material; the filling material frames are distributed at intervals in the peripheral direction of the fixing sleeve; the biological filling material is arranged on the filling material frame. The sewage is in sufficient contact with the biological filling; the biologicalfilling has a good anaerobic digestion treatment effect on the sewage; the sewage deposition quantity is reduced; the frequent mud scraping operation is not needed; the energy is saved; the environment is protected; the abrasion of the mud scraping component is small; the service life is long.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a novel sedimentation tank used in sewage plants. Background technique [0002] With the continuous growth of the economic level, the total amount of sewage is also increasing. Therefore, the demand for sewage treatment is also increasing. In the process of sewage treatment, the treatment effect on sludge is poor, and often only the sludge is allowed to settle by itself. A large amount of sludge in the sewage is directly deposited at the bottom of the sedimentation tank, which requires frequent cleaning, which affects the efficiency of sewage treatment. , and the processing cost is expensive. In order to solve the above problems, some of the existing sedimentation tanks are provided with biological fillers in the tanks, and the organic matter in the sludge is oxidized and decomposed by the biological fillers to reduce the amount of sludge deposition, thereb...

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Problems solved by technology

[0003] However, the filler in the sedimentation tank under this structure needs to be backwashed, and the sludge at the bottom of the tank needs to be scraped. Various components such as mud scraping parts, backwashing pipelines, and fillers will be installed in the sedimentation tank. The structure is complex and the cost High; and there are too many components, so it is often prone to failure, the maintenance rate is high, the maintenance cost is expensive, and the working process of water treatment is affected, and the work efficiency is low

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