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Aerobic granular sludge integrated sewage treating device and method

A technology for aerobic granular sludge and sewage treatment, applied in water/sludge/sewage treatment, water/sewage treatment equipment, water/sewage treatment, etc. , the problem of high operating energy consumption, to achieve the effect of solving the interference of denitrification function, improving the water flow environment and low operating cost

Active Publication Date: 2015-01-28
中国市政工程西北设计研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] One of the purposes of the present invention is to provide a kind of aerobic granular sludge integrated sewage treatment facility, another purpose of the present invention is to provide a kind of aerobic granular sludge integrated sewage treatment method; to solve the process existing in the prior art Long process, many purification structures and sludge return facilities, high energy consumption in operation, large floor area and inconvenient management

Method used

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  • Aerobic granular sludge integrated sewage treating device and method
  • Aerobic granular sludge integrated sewage treating device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Method embodiment 1, an aerobic granular sludge integrated sewage treatment method, including activated sludge inoculation before operation, cultivation of dominant bacteria and continuous operation treatment;

[0047] First, the inoculation of activated sludge and the cultivation of dominant bacteria before operation

[0048] Before the continuous operation of the biochemical device, the activated sludge inoculation and the cultivation of dominant strains were completed, and ammonia oxidizing bacteria and denitrifying phosphorus accumulating bacteria (DPAO) were used for double sludge short-cut nitrification s ) is the dominant strain, and the aeration volume of the reactor is controlled at 0.21m during the cultivation period 3 / h; use high-load inoculation cultivation, suffocate for 36 hours, then continuously enter water and aerate continuously. When the MLSS in the pool is close to about 3.5g / L and the sludge index SVI is about 90, the sedimentation ratio SV is 28%....

Embodiment 2

[0051] Method embodiment 2, the first, the cultivation of activated sludge inoculation and dominant bacterial species before operation

[0052] Before the continuous operation of the biochemical device, the activated sludge inoculation and the cultivation of dominant strains were completed, and ammonia oxidizing bacteria and denitrifying phosphorus accumulating bacteria (DPAO) were used for double sludge short-cut nitrification s ) is the dominant strain, and the aeration volume of the reactor is controlled at 0.21m during the cultivation period 3 / h; use high-load inoculation cultivation, suffocate for 48 hours, then continuously enter water and aerate continuously. When the MLSS in the pool is close to about 4.0g / L and the sludge index SVI is about 80, the sedimentation ratio SV is 26%. That is, the cultivation is successful;

[0053] Second, the continuous operation process is the same as in Example 1.

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Abstract

An aerobic granular sludge integrated sewage treating device is disclosed. The device comprises a water feeding pipe, aeration systems and a sludge discharging perforated pipe. The device also comprises a cylindrical tank body. The center of the cylindrical tank body is provided with a cone reaction drum. The periphery of the cone reaction drum is provided with cylindrical separation plates. The cone reaction drum is the first reaction chamber. The space between the cone reaction drum and the cylindrical separation plates is the second reaction chamber. The space between the cylindrical separation plates and the cylindrical tank body is the third reaction chamber. Each reaction chamber is provided with a plurality of layers of mesh plates which are arranged horizontally. The bottom of the cone reaction drum is provided with a water-gas mixing short pipe. The water-gas mixing short pipe is connected to a gas feeding pipe. The lower end of the water-gas mixing short pipe is provided with a frustum cone-like water feeding cavity. The outlet of the water feeing pipe is horizontally arranged, is in the frustum cone-like water feeding cavity, and is provided with a nozzle. The lower end of the cylindrical tank body is provided with a cone. The bottom of the cone is connected to the sludge discharging perforated pipe. The top edge of the inner wall of the cylindrical tank body is provided with a water discharging groove. The device has characteristics of simple configuration, construction convenience, small occupied space, convenient running, good quality of discharged water, low manufacturing cost, and low running cost.

Description

technical field [0001] The invention belongs to the technical field of urban sewage treatment and industrial wastewater treatment, and in particular relates to an aerobic granular sludge integrated sewage treatment facility, and also relates to an aerobic granular sludge integrated sewage treatment method. Background technique [0002] Although the traditional activated sludge sewage treatment process has been widely used at home and abroad, the biomass and bacterial population caused by this process are small, and the utilization of organic loads and carbon sources in sewage and the sludge age are different among the main bacterial species. There are competitions and contradictions in demand and other aspects, which lead to mutual restraint and interference of energy, which affects the purification effect. [0003] In addition, the traditional process or the enhanced traditional process has problems such as long process flow, more purification structures and sludge return f...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F3/34
CPCC02F3/301C02F3/302C02F3/341C02F2201/002C02F2203/004
Inventor 戴之荷孔令勇贾万新章伟民李祖鹏苏蕊
Owner 中国市政工程西北设计研究院有限公司
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