A highly efficient oxygenation system in a limited space

A limited space, high-efficiency technology, applied in the field of high-efficiency oxygenation system in limited space, can solve problems such as uneven aeration, blockage, and sludge accumulation at the bottom of the aerobic tank, and achieve prolonged hydraulic retention time, increased mixing area, and equipment The effect of structural simplification

Active Publication Date: 2018-02-23
SHANGHAI SHIYUAN ENVIRONMENT PROTECTION TECH
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Problems solved by technology

[0011] The invention provides an efficient oxygenation system in a limited space to solve the problem of uneven aeration in the aerobic tank in actual engineering, low overall dissolved oxygen efficiency, sludge accumulation at the bottom of the tank, easy detachment of the aerator, blockage, aging, and oxygen utilization efficiency. Problems such as rapid decline, inconvenient management and maintenance, and high cost

Method used

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  • A highly efficient oxygenation system in a limited space
  • A highly efficient oxygenation system in a limited space
  • A highly efficient oxygenation system in a limited space

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Embodiment

[0052] This embodiment adopts a new type of aerator, and integrates centralized aeration and zoned oxygen supply technologies to provide an efficient oxygenation system in a limited space.

[0053] See figure 2 , a limited space efficient oxygenation system provided in this embodiment, comprising:

[0054] Aeration tank (2),

[0055] Several deflectors (5) are added along the direction of water flow in the aeration tank (2), and the aeration tank (2) is divided into several areas along the direction of water flow (such as figure 2 Shown as I, II, III three regions, in other embodiments also can be two regions or more regions), in each region, according to the specific situation of oxygen demand, different numbers of aerators are concentratedly arranged, Specifically, in this embodiment, the aerator is a rotary-cut mixed-flow aeration device (7). According to the specific situation of oxygen demand, different numbers of rotary cutting mixed-flow aeration devices are centra...

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Abstract

The invention discloses an efficient oxygenation system for a confined space. The system comprises an aeration tank, a plurality of flow guiding plates are arranged in the aeration tank in the water flow direction and divide the aeration tank into a plurality of areas, different quantities of aerators are arranged in the areas in a concentrated mode according to the oxygen dissolving requirements of the areas, the aerators are rotary-cutting and mixed-flowing aeration devices, a flow guiding cutter is arranged over a water outlet of each rotary-cutting and mixed-flowing aeration device and arranged outside a corresponding central air inlet pipe, and a buffer distance is formed between each flow guiding cutter and the corresponding water outlet; each flow guiding cutter is an inverted cone with the conicity of 60 degrees to 65 degrees. According to the efficient oxygenation system for the confined space, the problems that in actual engineering, aeration in an aerobic tank is not uniform, the total oxygen dissolving efficiency is low, sludge in the tank is deposited, the aerators are prone to fall off and be blocked and aged, the oxygen utilization efficiency is rapidly lowered, management and maintenance are inconvenient, and the cost is high are solved.

Description

technical field [0001] The invention relates to the technical field of sewage and wastewater treatment, in particular to a limited-space efficient oxygenation system for aeration. Background technique [0002] Aerobic biological treatment process is widely used in various industrial wastewater and urban domestic sewage treatment projects. Aeration is the key process link. Oxygenation is realized in sewage through aeration equipment, which provides oxygen for aerobic microorganisms to decompose organic matter and maintains the activity of aerobic microorganisms. In addition, aeration also plays the role of stirring and mixing to ensure the activity The full contact of sludge, dissolved oxygen and organic pollutants can improve the effect of sewage treatment. Blast aeration is the mainstream aeration method in China, which consists of a blower, an air diffusion device and an air delivery pipeline. According to the size of the bubbles generated, the air diffuser can be divide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02C02F3/12C02F101/30
CPCC02F3/02C02F3/12C02F2101/30C02F2303/14Y02W10/10
Inventor 张东曙杨逢午邱立俊李文贞
Owner SHANGHAI SHIYUAN ENVIRONMENT PROTECTION TECH
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