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Novel diversion enhanced oxygen dissolving and mass transferring sewage processing tower

A technology of sewage treatment and dissolved oxygen, applied in biological water/sewage treatment, water/sludge/sewage treatment, aerobic process treatment, etc. and other problems, to achieve the effect of saving floor space, saving operating costs, and realizing multiple recycling.

Inactive Publication Date: 2017-10-24
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the existing sewage treatment process, the part of the aerobic process generally adopts the method of aeration at the bottom of the aerobic tank to purify the sewage. However, the energy consumption of the fan has always been an important expenditure in the process of sewage treatment. The longer residence time in the pool and the lower mass transfer efficiency also restrict its floor space
Restricts its development space in smaller areas

Method used

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  • Novel diversion enhanced oxygen dissolving and mass transferring sewage processing tower
  • Novel diversion enhanced oxygen dissolving and mass transferring sewage processing tower
  • Novel diversion enhanced oxygen dissolving and mass transferring sewage processing tower

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 As shown, the structure schematic diagram of the sewage treatment tower of the novel flow diversion enhanced dissolved oxygen and mass transfer of the present invention is provided, which consists of tower body 1, water inlet pipe 2, water distributor 4, mud distribution plate 5, diversion grid 6 , a contact grid 8, a fixed plate with holes 9, a sludge retention plate 10, a sludge lifting pump 11, a sludge return pipe 13, a sewage lifting pump 15, and a sewage return pipe 17. The upper end of the tower body 1 shown is open, and the inner for the cavity. The diversion grid 6 and the fixed plate with holes 9 are arranged on the upper and lower parts of the inner cavity of the tower body 1 respectively, which divide the inner cavity of the tower body 1 from top to bottom into a water distribution and mud distribution area and a con...

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Abstract

The invention provides a novel diversion enhanced oxygen dissolving and mass transferring sewage processing tower. The tower comprises a tower body with an opened upper end. A diversion grid and a perforated fixing plate divide the tower body into a water distribution and mud distribution area, a contact oxidation area, a sludge backflow area and a sewage backflow area. The tower is characterized in that a mud distribution plate and a water distributor are arranged above the diversion grid; a vertical contact grid is arranged in the contact oxidation area; the peripheries of the upper parts of the sludge backflow area and the sewage backflow area are both provided with a vent hole; and the air flow between the vent holes and the opening in the upper end of the tower body is used to aerate the sludge and sewage in the contact grid. Sewage flows along the contact grid at a certain flowing speed, the aerobic sludge growing on the contact grid is fully contacted with the sewage; the flowing speed is larger, the mass transferring efficiency is better; and the sewage is purified by repeatedly refluxing the sewage. The aeration on sludge and sewage by a blower fan is not needed, the operation cost is reduced, at the same time, the height / diameter ratio of the tower is large, and the occupied area of an aerobic column is also saved.

Description

technical field [0001] The present invention relates to a sewage treatment tower, more specifically, it relates to a novel sewage treatment tower which improves the mass transfer efficiency and saves energy due to the omission of an aeration device. . Background technique [0002] In the existing sewage treatment process, the part of the aerobic process generally adopts the method of aeration at the bottom of the aerobic tank to purify the sewage. However, the energy consumption of the fan has always been an important expenditure in the process of sewage treatment. The longer residence time in the pool and the lower mass transfer efficiency also restrict its floor space. It restricts its development space in smaller areas. Contents of the invention [0003] In order to overcome the disadvantages of the above-mentioned technical problems, the present invention provides a new type of sewage treatment tower for diversion to enhance dissolved oxygen and mass transfer. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F3/22
CPCC02F3/1221C02F3/1236C02F3/22C02F2203/006Y02W10/10
Inventor 杨晓进尹利君戚伟康胡汉君宋颖候嫒瑛
Owner BEIJING UNIV OF CHEM TECH
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