Efficient oxygenation system for confined space

A limited-space, high-efficiency technology, applied in the field of limited-space high-efficiency oxygenation systems, can solve problems such as uneven aeration in aerobic tanks, sludge accumulation at the bottom of the tank, and high cost, and achieve extended hydraulic retention time, simplified equipment structure, and air smooth flowing effect

Active Publication Date: 2016-11-23
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

Method used

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  • Efficient oxygenation system for confined space
  • Efficient oxygenation system for confined space
  • Efficient oxygenation system for confined space

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Example Embodiment

[0051] Example

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

[0053] See figure 2 , A limited space efficient oxygenation system provided by this embodiment includes:

[0054] Aeration tank (2),

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

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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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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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