Method for absorbing malodorous gas in sewage treatment and special device

A malodorous gas and sewage treatment technology, which is applied in gas treatment, separation methods, chemical instruments and methods, etc., can solve the problems that inorganic and organic malodorous components cannot be completely absorbed, and it is difficult to popularize and apply them, so as to achieve full absorption, The effect of improving efficiency

Inactive Publication Date: 2021-03-12
UNIVERSAL ENVIROMENTAL PROTECTION EQUIP YIXING CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Commonly adopted measures include combustion method and adsorption method. The combustion method requires additional auxiliary energy, and the combustion products are secondary pollutants such as sulfur dioxide. The adsorption method needs to replace the adsorbent after the absorption is saturated. It cannot be completely absorbed, and these methods are difficult to popularize and apply in sewage treatment due to cost and other reasons

Method used

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  • Method for absorbing malodorous gas in sewage treatment and special device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The absorption device for malodorous gas in sewage treatment, the structure is as follows figure 1 shown. Depend on figure 1 It can be known that the device comprises an aeration tank 1, an alkali solution tank 7, a controller 4 and 4 absorption towers 3; the aeration tank 1 is provided with a base 2; both sides of the base 2 are provided with support frames, and the support frames are fixed on On the ground; 4 absorption towers 3 are arranged above the base 2;

[0027] The bottom of the first absorption tower is provided with a first air inlet pipe and a first liquid outlet pipe, and the first air inlet pipe is provided with a first air inlet valve 5; the top of the first absorption tower is provided with a first air outlet pipe and a first liquid inlet pipe. pipeline, the first gas outlet pipeline is provided with a first gas outlet valve 6, and the first liquid inlet pipeline is provided with a first liquid inlet valve 9;

[0028] The bottom of the second absorpti...

Embodiment 2

[0035] Adopt the absorption device of malodorous gas in the sewage treatment in embodiment 1 to carry out the absorption and removal of malodorous gas, specifically comprise the following steps:

[0036] (1) Check whether the device is in normal use, check the tightness of the gas pipeline and liquid pipeline, and proceed to step (2) after the inspection and proofreading are qualified;

[0037] (2) Open the aeration tank 1, and the circulation pump starts to work, so that the first air inlet valve 5, the first air outlet valve 6, and the first liquid inlet valve 9 are in the open state, and the other valves are in the closed state, and the malodorous gas passes through the first The intake valve 5 enters the first absorption tower from bottom to top, and the lye enters the first absorption tower from top to bottom through the first liquid inlet valve 9. The lye and the malodorous gas form a reverse flow state, and the malodorous gas is captured into the liquid , the malodorous...

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Abstract

The invention discloses a method for absorbing malodorous gas in sewage treatment and a special device, and belongs to the technical field of sewage treatment. According to the device for absorbing malodorous gas in sewage treatment, a plurality of absorption towers can be connected in series and in parallel according to malodorous gas concentration and treatment requirements; alkali liquor is sprayed into the absorption tower from top to bottom and makes contact with malodorous gas from bottom to top, the malodorous gas is captured into liquid, and malodorous gas molecules are removed after being absorbed and neutralized with strong base; and the spraying density of the alkali liquor can be controlled to realize full absorption of the malodorous gas. According to the method for absorbingthe malodorous gas in the sewage treatment, the treatment condition of the malodorous gas is monitored in real time, the use condition of the device is reasonably set, and the efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a method for absorbing malodorous gas in sewage treatment and a special device thereof. Background technique [0002] After anaerobic treatment of domestic sewage through septic tanks, anaerobic tanks, etc., it is then aerated. During the aeration process, odorous substances such as methyl mercaptan, methyl sulfide, methyl disulfide, and ammonia in the water overflow with the airflow Into the atmosphere, the main part of the malodorous gas is hydrogen sulfide, and it is easy to diffuse, which can cause dizziness, headache, nausea, vomiting, general weakness, hydrogen sulfide smell in the breath, miosis, slow reaction, etc. It can be seen that the stench produced by the sewage treatment plant is relatively harmful to the surrounding environment and people, and it is very necessary to take deodorization measures. Commonly adopted measures include combustion me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18B01D53/14
CPCB01D53/1412B01D53/1468B01D53/1487B01D53/18B01D2252/10B01D2257/304B01D2257/306
Inventor 张铭尹邱超吴圳李禹奇
Owner UNIVERSAL ENVIROMENTAL PROTECTION EQUIP YIXING CITY
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