Municipal sewage treatment system

A technology for treating system and urban sewage, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as high cost and low efficiency

Inactive Publication Date: 2015-09-02
黄勇
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides an urban sewage treatment system for the urgent need to solve the cur...

Method used

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  • Municipal sewage treatment system
  • Municipal sewage treatment system
  • Municipal sewage treatment system

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Embodiment 1

[0020] Municipal sewage treatment systems, such as Figure 1-Figure 3 As shown, it includes a regulating tank 4, a treatment tank 1, a sludge tank 5 and a sludge concentration tank 6 connected in sequence through pipelines. After the sewage is regulated and stirred by the regulating tank 4, it enters the treatment tank 1 through the water inlet 15, and the treatment tank 1 A stirring device 2 is provided on the rear side wall of the tank, and the stirring device 2 includes a stirring shaft 21 fixed on the rear side wall of the treatment tank 1. The stirring shaft 21 is provided with a stirring plate that can rotate around the stirring shaft 21, and the stirring plate is wound around the stirring shaft. The first stirring blade 22, the second stirring blade 23, the third stirring blade 24 and the fourth stirring blade 25 which can rotate around the stirring shaft 21 are fixed sequentially in the circumferential direction of the disk, and the first stirring blade 21 and the third...

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Abstract

The invention relates to the field of sewage treatment, in particular to a municipal sewage treatment system comprising an adjustment pool (4), a treatment pool (1), a sludge pool (5) and a sludge concentration pool (6) which are connected sequentially through a pipeline. A stirring device (2) is arranged on the rear side wall of the treatment pool (1) and comprises four fixed stirring blades different in length, a baffle (250) perpendicular to the fourth stirring blade (25) is arranged at the end of the same, and pebbles (3) are laid in the treatment pool (1). Irregular flowing of water flow in the treatment pool can be realized, the water flow can be fully disordered, medicament placed into the treatment pool can be ensured to be mixed with a water body fully, and the pebbles, with surface mycoderm, below the treatment pool can be made to contact with the water body above the treatment pool, so that decrease amount of chemical oxygen demand (COD) and biochemical oxygen demand (BOD) in water can be increased, and effect of removing carbon, sulfur and solid nitrogen can be realized to greatest extent.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an urban sewage treatment system. Background technique [0002] With the growth of urban population in our country, the expansion of residential areas and the further concentration of population, domestic water consumption has also increased, resulting in more and more sewage discharged from cities. Urban domestic sewage is mainly composed of kitchen washing, toilet flushing, bathing, laundry water, etc. The organic nitrogen and ammonia nitrogen contained in the sewage mainly come from the waste of protein metabolism in human food, such as feces. At present, urban domestic sewage has become the main pollution source of urban water in my country, and the existing sewage treatment facilities are unable to withstand the increasing amount of sewage treatment, resulting in a large amount of domestic sewage being discharged into rivers and lakes without purification, polluting natural w...

Claims

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Application Information

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IPC IPC(8): C02F3/34
Inventor 黄勇
Owner 黄勇
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