A multifunctional sewage sedimentation tank and its application method

Abstract

The invention provides a multi-functional sewage sedimentation tank and a using method thereof, belonging to the technical field of sewage treatment equipment. The invention includes a settling tank, a cover plate, a sewage outlet, an exhaust pipe, a water inlet pipe and a water outlet pipe, a driving mechanism, a mud scraping mechanism and an opening and closing mechanism. A sedimentation chamber is formed, and the sewage outlet is set at the bottom of the sedimentation cylinder. The coaxial rotation inside the sewage outlet is provided with a first rotating shaft, and one end of the exhaust pipe is fixedly connected to the cover plate. Both the water pipe and the outlet pipe are fixedly connected to the side wall of the sedimentation tank. The driving mechanism can use the cover plate to slide up and down to drive the first rotating shaft to rotate. When the first rotating shaft rotates, the mud scraping mechanism can scrape the sludge at the bottom of the sedimentation chamber to In the sewage outlet, when the first rotating shaft rotates, the opening and closing mechanism can open and close the sewage outlet. The invention can use the organic matter in the sewage to ferment to generate biogas, and can also clean the sludge at the bottom at the same time, which is green and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment equipment, and relates to a multifunctional sewage sedimentation tank and a using method thereof. Background technique [0002] Domestic sewage is the wastewater discharged from the daily life of residents, mainly from residential buildings and public buildings. The pollutants contained in domestic sewage are mainly fixed particles (plastic particles, sediment, etc.) and pollutants (such as protein, fat, urea, ammonia nitrogen and a large number of pathogenic microorganisms, etc.). [0003] Usually sewage needs to be pretreated before purification treatment. The main purpose of pretreatment is to remove impurities and sediment in sewage. The sludge is continuously deposited at the bottom of the sedimentation tank and needs to be cleaned regularly. More organic matter will be fermented in the process of precipitation to produce biogas. Existing sedimentation tanks do not make reasonable u...

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Problems solved by technology

[0003] Usually, sewage needs to be pretreated before it is purified. The main purpose of pretreatment is to remove impurities and sediment in the sewage. The sludge is continuously deposited at the bottom of the sedimentation tank and needs to be cleaned regularly; A lot of organic matter will ferment during the sedimentation process and produce biogas. The existing sedimentation tanks do not make reasonable use of the biogas, resulting in energy waste

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