Degassing device and method for hydrogen sulfide gas in drainage pipe network

A drainage pipe network and hydrogen sulfide technology, applied in chemical instruments and methods, water aeration, water pollutants, etc., can solve the problem of inability to efficiently remove hydrogen sulfide gas, and achieve a simple structure, high cost, and large dosage Effect

Active Publication Date: 2018-12-11
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the deficiencies in the prior art, the object of the present invention is to provide a hydrogen sulfide gas degassing device and method for drainage pipe network, so as to solve the problem that the hydrogen sulfide removal device in the drainage pipe in the prior art cannot The problem of efficiently removing hydrogen sulfide gas in drainage pipes

Method used

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  • Degassing device and method for hydrogen sulfide gas in drainage pipe network
  • Degassing device and method for hydrogen sulfide gas in drainage pipe network
  • Degassing device and method for hydrogen sulfide gas in drainage pipe network

Examples

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Effect test

Embodiment

[0040] This embodiment provides a hydrogen sulfide gas degassing device for the drainage pipe network, such as Figure 1 to Figure 5 As shown, it includes a support foot 1, a side plate 2 installed on the support foot, a cross bar 3 installed on the side plate 2 and an impeller 4 installed on the cross bar 3;

[0041] The impeller 4 is made of iron-carbon filler.

[0042] This embodiment also provides a hydrogen sulfide gas degassing method for the drainage pipe network, which uses the hydrogen sulfide gas degassing device for the drainage pipe network as described above;

[0043] The hydrogen sulfide gas degassing device of the drainage pipe network is placed in the water body in the inspection well 8 of the drainage pipe network.

[0044] As a specific solution of the hydrogen sulfide gas degassing device for the drainage pipe network of this embodiment, two lifting lugs 5 are fixed on the side plate 2 of this embodiment, and a hanging piece 6 is hooked on the lifting lugs ...

experiment example

[0062] ①Determination of hydrogen sulfide removal efficiency

[0063] Add 800mL of domestic sewage to eight 1.5L beakers, add 100g of filler, and set the contact time of filler at 0.5min, 1min, 1.5min, 2min, 2.5min, 3min, 3.5min, 4min respectively. The numbers are a, b, c, d, e, f, g, h. Measure the content of hydrogen sulfide after sealed storage for 8 hours.

[0064] The experimental results are attached Figure 6 As shown, for 800ml of domestic sewage, when the filler is 100g and the reaction time is 7min, hydrogen sulfide will basically not be produced.

[0065] ② Calculation of the number of devices and the amount of filler used in the present invention

[0066] Set the diameter of the drainage pipe network to be 0.3m, the degree of fullness to be 0.5, the diameter of the inspection well to be 0.8m, the flow rate of sewage to be 0.6m / s, and the reaction contact time to be 1s. After calculation, the device of the present invention can be obtained on the basis of a certa...

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Abstract

The invention provides a degassing device for hydrogen sulfide gas in drainage pipe network. The degassing device comprises supporting feet, side plates, cross rods and impellers, wherein the side plates are arranged on the supporting feet, the cross rods are arranged on the side plates, and the impellers are arranged on the cross rods; and each impeller 4 is made of an iron-carbon filler. The invention further provides a degassing method for the hydrogen sulfide gas in the drainage pipe network. The method uses the degassing device for the hydrogen sulfide gas in the drainage pipe network. According to the degassing device and method for the hydrogen sulfide gas in the drainage pipe network, a water body is subjected to reoxygenation by utilizing the impellers, so that the removal of hydrogen sulfide in the water body is facilitated, the hydrogen sulfide is further removed by utilizing iron ions released by the iron-carbon filler, the hydrogen sulfide gas in a drainage pipeline is removed from the source, and therefore the personal safety of workers is guaranteed, and the potential safety hazard of pipeline explosion is eliminated; and lifting parts are used for the descending andascending processes, so that the position of equipment in the drainage pipe network is controlled, the purpose that the workers do not need to go down to a well can be achieved, and therefore the application cost of the gas removal equipment for the hydrogen sulfide in the drainage pipeline is greatly lowered.

Description

technical field [0001] The invention belongs to the field of water treatment equipment and relates to the treatment of harmful gas in a drainage pipe network, in particular to a hydrogen sulfide gas degassing device and method for a drainage pipe network. Background technique [0002] Urban drainage pipe network is an important part of urban infrastructure, and its stable operation plays a very important role in the life of residents and the environment of the city. However, in recent years, there have been more and more problems about sewage pipes, and the most discussed is the impact of harmful gases in sewage pipes. Due to the long residence time of sewage in the pipeline, it is easy to form an anaerobic environment in the sediment, and some anaerobic microorganisms will produce a large amount of toxic and harmful gases in the drainage pipe network. [0003] The sulfate content in urban sewage is 40-200mg / l, and it is easily reduced by sulfate-reducing bacteria in the pi...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F7/00C02F101/10
CPCC02F1/4618C02F7/00C02F2001/4619C02F2101/101C02F2303/02Y02W10/10
Inventor 卢金锁周亚鹏王社平高如月
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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