A wastewater ozone dechlorination system and process

A waste water and ozone technology, applied in water pollutants, oxidized water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of high chlorine ion treatment cost, low ozone utilization rate, and large floor area. Achieve the effects of reducing solubility, promoting chlorine gas generation, and increasing contact area

Active Publication Date: 2021-08-24
SHANDONG GUOSHUN CONSTR GRP
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Problems solved by technology

[0007] In view of the low utilization rate of ozone in the prior art, the easy dissolution of chlorine gas in wastewater, the centralized treatment of multiple batches of wastewater in the prior art, the use of large-scale industrial stirring devices for stirring, the large footprint, and the high cost of chlorine ion treatment, In the first aspect of the present disclosure, a wastewater ozone dechlorination system is provided. The wastewater ozone dechlorination system includes a chlorine removal device, an ozone generator is installed at the bottom of the chlorine removal device, and a nozzle is installed on the upper part of the chlorine removal device. The feed pipe is connected to the feed pipe, the waste water heater is installed on the feed pipe, and there is a chlorine gas discharge pipe on the top of the chlorine removal device, and the chlorine gas discharge pipe is a negative pressure pipe

Method used

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  • A wastewater ozone dechlorination system and process

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Embodiment 1

[0040] Such as figure 1As shown, the present embodiment provides a wastewater ozone dechlorination system, including a dechlorination device 1, an aeration pan 12 is installed at the bottom of the dechlorination device 1, and the aeration pan 12 is connected to the ozone generator 2, and the two are used for The ozone required for the reaction is provided, and the aeration disc 12 is a micro-nano aeration generating device, which is convenient for the ozone nano-bubbles to fully react with the chlorine ions in the wastewater. Ozone nano-bubbles form reverse contact with wastewater in water, and ozone and chlorine ions can fully contact and react to generate chlorine gas to be discharged. The aeration tray 12 is arranged in upper and lower layers to increase the contact area.

[0041] The upper part of the dechlorination device 1 is equipped with a nozzle 11, the waste water enters the dechlorination device 1 through the nozzle 11, and the nozzle 11 sprays the waste water, on ...

Embodiment 2

[0047] This embodiment provides a wastewater ozone dechlorination process. The wastewater ozone dechlorination process is carried out in the wastewater ozone dechlorination system described in Embodiment 1. Wastewater enters the chlorine removal process from the feed pipe through the wastewater heater 3 from the nozzle 11. In device 1, oxygen is prepared into ozone by ozone generator 2, ozone enters aeration pan 12, and reversely contacts with wastewater to oxidize chlorine ions in wastewater to chlorine gas, which is pumped from chlorine removal device 1 to chlorine gas discharge pipe by vacuum pump 7.

[0048] The waste water is atomized by the spray nozzle 11 and diffuses in the upper part of the dechlorination device 1. Since the waste water contains more chloride ions, the generated chlorine gas can be prevented from re-dissolving in the waste water. The nozzle 11 makes the chlorine ions evenly distributed in the waste water.

[0049] When the chlorine ion concentration i...

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Abstract

The invention relates to the field of wastewater chlorine removal, and specifically provides a wastewater ozone chlorine removal system and process. The wastewater ozone dechlorination system includes a chlorine removal device, an ozone generating device is installed at the bottom of the chlorine removal device, a nozzle is installed on the upper part of the chlorine removal device, and the nozzle is connected to a feed pipeline, and a waste water heater is installed on the feed pipeline, A chlorine gas discharge pipeline is arranged on the top of the chlorine removal device, and the chlorine gas discharge pipeline is a negative pressure pipeline. The wastewater ozone dechlorination process is carried out in the aforementioned wastewater ozone dechlorination system. Improve the utilization rate of ozone; reduce the dissolution of chlorine in wastewater according to the principle of chemical balance. Avoid the use of large wastewater agitation devices and reduce the cost of chloride ion treatment.

Description

technical field [0001] The invention relates to the field of wastewater chlorine removal, and specifically provides a wastewater ozone chlorine removal system and process. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] In power plants, steel mills and other wastewater, it is often high-salt wastewater, which brings serious harm to the equipment and production of thermal power plants and steel mills, severe corrosion, and high-salt wastewater is highly polluting and must not be discharged at will. The treatment of saline wastewater is of great concern. [0004] The chloride ion concentration of high-salt wastewater in general enterprises is 1000-50000 mg / l, and the content of chloride ions is high. Therefore, the removal of chloride ions is one of the most important problems in the treatment of high-salt wastewater. The most effective way to rem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/78C02F101/12
CPCC02F1/78C02F2101/12
Inventor 吕杨杨杨凤岭孙德山段艺强吴方超
Owner SHANDONG GUOSHUN CONSTR GRP
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