Novel constant water-level sequencing batch type sewage treatment device

Abstract

The invention discloses a novel constant water-level sequencing batch type sewage treatment device. The sewage treatment device is characterized by comprising a coarse screen, a winding shaft, a fine screen, an efficient vortex-type grit chamber, and a combined reaction-biochemical precipitation-water decanting integration system which are sequentially connected, wherein an automatic water-level control device is arranged in the winding shaft behind the coarse screen, a water inlet of the coarse screen is provided with a screen well for sewage treatment, and the coarse screen is arranged in the screen well. The combined reaction-biochemical precipitation-water decanting integration system is composed of four parts including a water inlet regulating tank, a precipitation tank, a water outlet regulating tank and a clear water tank, the four parts are separated by flexible partition plates, and the flexible partition plates can move back and forth so as to regulate the regional volume of the four parts of the combined reaction-biochemical precipitation-water decanting integration system. The novel constant water-level sequencing batch type sewage treatment device disclosed by the invention is reasonable and compact in structure, small in land-occupied area, not only easy to operate, high in treatment efficiency and low in operating cost, but also high in degree of automation, not only suitable for treating urban sanitary sewage, but also capable of treating general industrial wastewater.

Description

technical field [0001] The invention relates to the field of waste water treatment facilities and devices, in particular to a new type of waste water treatment device that is energy-saving and occupies less land for the treatment of urban sewage and the waste water discharged by general industrial enterprises. Background technique [0002] At present, the research on sewage treatment technology and the construction of sewage treatment projects in large and medium-sized cities in my country are developing rapidly, but the treatment of small town sewage and sewage discharged by general industrial enterprises is still in the initial stage of development. Most small towns have no sewage treatment facilities, and a large amount of sewage It is directly discharged into the water body without treatment, and the distribution of small towns is scattered and extensive, resulting in large-scale water pollution and endangering people's health. Therefore, it is necessary to adopt effective...

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Problems solved by technology

[0002] At present, the research on sewage treatment technology and the construction of sewage treatment projects in large and medium-sized cities in my country are developing rapidly, but the treatment of small town sewage and sewage discharged by general industrial enterprises is still in the initial stage of development. Most small towns have no sewage treatment facilities, and a large amount of sewage It is directly discharged into the water body without treatment, and the distribution of small towns is scattered and extensive, resulting in large-scale water pollution and endangering people's health. Therefore, it is necessary to adopt effective methods to collect and treat urban sewage treatment and general industrial wastewater

[0003] At present, in the process of urban sewage treatment and general industrial wastewater treatment, activated sludge treatment combined with sedimentation filtration; hydrolysis aerobic combination with sedimentation filtration; biochemical combination with MBR treatment and other treatment methods are generally used. Although the above methods have application projects in the market, they are not However, there are generally disadvantages such as long process flow, large floor area, high operating cost, poor stable operation, high energy consumption, and low processing efficiency.

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