CN215365230U - A dystopy prosthetic devices for ammonia nitrogen pollutes groundwater - Google Patents
A dystopy prosthetic devices for ammonia nitrogen pollutes groundwater Download PDFInfo
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- CN215365230U CN215365230U CN202121419757.6U CN202121419757U CN215365230U CN 215365230 U CN215365230 U CN 215365230U CN 202121419757 U CN202121419757 U CN 202121419757U CN 215365230 U CN215365230 U CN 215365230U
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Abstract
The utility model provides an ex-situ remediation device for ammonia nitrogen polluted underground water, which comprises a pumping well, a pretreatment tank body, a stripping/oxidation tower, a buffer tank and a reinjection well, which are sequentially connected through a pipeline; the pumping well is used for pumping the ammonia nitrogen polluted underground water and lifting the ammonia nitrogen polluted underground water to a ground pretreatment tank body; the pretreatment tank body is used for carrying out flocculation precipitation and pH regulation pretreatment on the ammonia nitrogen polluted underground water; the stripping/oxidation tower is used for stripping and/or oxidizing ammonia nitrogen in the groundwater polluted by the ammonia nitrogen; the buffer pool is used for buffering, adjusting and detecting the treated underground water, and directly used for reinjection and/or discharge after the detection reaches reinjection standards; the reinjection well is used for reinjecting the qualified underground water to the underground. The device improves the ammonia nitrogen stripping efficiency by improving the stripping steam temperature and controlling the pH value; secondly, the treated underground water is oxidized into nitrogen by ozone catalytic oxidation so as to achieve the purpose of removing residual ammonia nitrogen which is difficult to blow off in the underground water.
Description
Technical Field
The utility model relates to the field of sewage treatment, in particular to an ectopic repair device for ammonia nitrogen polluted underground water.
Background
Underground water is a precious fresh water resource for human beings, but with the continuous development of the social industrialization process, the problems of waste water discharge, industrial waste residues, agricultural irrigation, landfill site leakage, damage of transport pipelines and storage tanks of petrochemical raw materials and the like can cause underground water pollution, so that the problem of water resource shortage which is originally short is more serious, and serious threats and challenges are formed for living health, food safety, drinking water safety, regional ecological environment, sustainable development of economic society and even social stability, and underground water restoration becomes an environmental problem which is currently concerned by the public and the society.
The ammonia nitrogen in the underground water seriously exceeds the standard due to industrial pollution of chemical fertilizer plants, metallurgical plants and the like, the underground water quality is characterized by high ammonia nitrogen concentration which can reach more than 3000mg/L at most and poor biodegradability, and the traditional biochemical water treatment process can not effectively reduce the ammonia nitrogen concentration in the underground water. The traditional stripping technology cannot achieve the restoration target in removal efficiency, and the traditional oxidation process converts a large amount of ammonia nitrogen into nitrate or nitrite, so that the problem of secondary pollution is caused.
SUMMERY OF THE UTILITY MODEL
In view of the above, embodiments of the present invention provide an ex-situ remediation device for ammonia nitrogen contaminated groundwater, so as to eliminate or improve one or more defects in the prior art.
The technical scheme of the utility model is as follows:
the ectopic repair device comprises a pumping well, a pretreatment tank body, a stripping/oxidation tower, a buffer tank and a reinjection well which are sequentially connected through a pipeline; the pumping well is used for pumping the ammonia nitrogen polluted underground water and lifting the ammonia nitrogen polluted underground water to a pretreatment tank body on the ground; the pretreatment tank body is used for carrying out flocculation precipitation and pH adjustment pretreatment on the ammonia nitrogen polluted underground water; the stripping/oxidation tower is used for stripping and/or oxidizing ammonia nitrogen in the groundwater polluted by the ammonia nitrogen; the buffer pool is used for buffering, adjusting and detecting the treated underground water, and directly used for reinjection and/or discharge after the buffer pool is detected to reach the reinjection standard; and the reinjection well is used for reinjecting the qualified underground water to the underground.
Preferably, the ectopic repair device comprises an ozone micro-nano bubble preparation system, wherein the ozone micro-nano bubble preparation system comprises an ozone generator, a pressure tank and a micro-nano bubble generator and is used for preparing micro-nano ozone bubbles; the ozone micro-nano bubble preparation system is connected with the stripping/oxidation tower, and micro-nano ozone bubbles prepared by the ozone micro-nano bubble preparation system are injected into the stripping/oxidation tower.
Preferably, the ectopic repair device comprises an ozone aeration tank and a clean water tank, wherein the ozone aeration tank is connected with the buffer tank and is positioned at the downstream of the buffer tank, the clean water tank is connected with the ozone aeration tank and is positioned at the downstream of the ozone aeration tank, and the clean water tank is connected with the reinjection well through a pipeline.
Preferably, the ozone aeration tank is connected with the ozone micro-nano bubble preparation system, and the ozone aeration tank is used for deeply oxidizing underground water which does not reach the standard after being treated by the buffer tank.
Preferably, the ozone micro-nano bubble preparation system is used for providing the ozone micro-nano bubbles for the ozone aeration tank, so that the ozone micro-nano bubble aeration is carried out in the ozone aeration tank, and the ammonia nitrogen concentration of underground water is ensured to reach the standard.
According to the utility model, high-concentration ammonia nitrogen polluted underground water is extracted to the ground through the pumping well, firstly, the ammonia nitrogen stripping efficiency is improved by raising the stripping steam temperature and controlling the pH value; secondly, the treated underground water is oxidized into nitrogen by ozone catalytic oxidation so as to achieve the purpose of removing residual ammonia nitrogen which is difficult to blow off in the underground water.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model. For purposes of illustrating and describing some portions of the present invention, corresponding parts of the drawings may be exaggerated, i.e., may be larger, relative to other components in an exemplary apparatus actually manufactured according to the present invention. In the drawings:
fig. 1 is a schematic structural diagram of an ectopic remediation device for ammonia nitrogen-contaminated groundwater according to an embodiment of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not so relevant to the present invention are omitted.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
It is also noted herein that the term "coupled," if not specifically stated, may refer herein to not only a direct connection, but also an indirect connection in which an intermediate is present.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts, or the same or similar steps.
The utility model provides an ectopic remediation device for underground water polluted by ammonia nitrogen, which is used for remedying and treating the underground water polluted by the ammonia nitrogen with high concentration.
As shown in fig. 1, the ectopic repair device comprises a pumping well 1, a pretreatment tank body 2, a stripping/oxidation tower 3, a buffer tank 4, an ozone aeration tank 5, a clean water tank 6, a reinjection well 8 and the like which are sequentially connected through pipelines. The pumping well 1 is used for pumping ammonia nitrogen polluted underground water and lifting the ammonia nitrogen polluted underground water to a pretreatment tank body 2 on the ground. The pretreatment tank body 2 is used for carrying out flocculation precipitation and pH regulation pretreatment on the ammonia nitrogen polluted underground water; the stripping/oxidation tower 3 is used for stripping and/or oxidizing ammonia nitrogen in the underground water polluted by the ammonia nitrogen; the buffer pool 4 is used for buffering, adjusting and detecting the treated underground water, and directly used for reinjection and/or discharge after the treated underground water reaches a reinjection standard; the reinjection well 8 is used for reinjecting the qualified underground water to the underground.
According to the utility model, high-concentration ammonia nitrogen polluted underground water is extracted to the ground through the pumping well 1, and firstly, the ammonia nitrogen stripping efficiency is improved by raising the stripping steam temperature and controlling the pH value; secondly, the treated underground water is oxidized into nitrogen by ozone catalytic oxidation so as to achieve the purpose of removing residual ammonia nitrogen which is difficult to blow off in the underground water. The development of the pollution control and repair work of high-concentration ammonia nitrogen underground water has important significance on the sustainable utilization of underground water resources.
Extracting underground water polluted by high-concentration ammonia nitrogen from a pumping well 1 to the ground for pretreatment such as flocculation precipitation, pH regulation and the like, then entering a stripping/oxidation tower 3, stripping or oxidizing the high-concentration ammonia nitrogen in the underground water from the underground water, then entering a buffer tank 4 for buffer regulation, directly using for reinjection/discharge after the detection reaches reinjection standards, entering an ozone aeration tank 5 for deep oxidation if the reinjection/discharge standards are not reached, and finally entering a clean water tank 6 for reinjection or discharge after the detection reaches the standards.
In some embodiments, air stripping is the injection of compressed air under pressure into the contaminated area to drive out volatile compounds dissolved in the groundwater, compounds adsorbed on the surface of the soil particles, and compounds that have become lodged in the interstices of the soil. The air stripping comprises three processes: firstly, blowing off air on site; volatilizing the volatile organic compounds; and degrading organic matter aerobically. In comparison, stripping and volatilization proceeds faster, while biodegradation proceeds slowly. The stripping/oxidation tower 3 has the functions of both a stripping tower and an oxidation tower, ozone micro-nano bubbles with certain concentration are injected into stripped air, ammonia nitrogen oxidation is carried out while stripping, and compared with the traditional stripping tower, the ammonia nitrogen treatment efficiency is greatly improved. The air stripping technology and the ozone ammonia nitrogen oxidation technology are combined, so that the ammonia nitrogen removal efficiency is greatly improved.
In some embodiments, the ectopic repair device comprises an ozone micro-nano bubble preparation system 7, wherein the ozone micro-nano bubble preparation system 7 comprises an ozone generator, a pressure tank and a micro-nano bubble generator, and is used for preparing micro-nano ozone bubbles; the ozone micro-nano bubble preparation system 7 is connected with the stripping/oxidation tower 3, and micro-nano ozone bubbles prepared by the ozone micro-nano bubble preparation system are injected into the stripping/oxidation tower 3.
In some embodiments, the ozone aeration tank 5 is connected to the buffer tank 4 and located downstream of the buffer tank 4, the clean water tank 6 is connected to the ozone aeration tank 5 and located downstream of the ozone aeration tank 5, and the clean water tank 6 is connected to the reinjection well 8 through a pipeline. The ozone aeration tank 5 is connected with the ozone micro-nano bubble preparation system 7, and the ozone aeration tank 5 is used for deeply oxidizing underground water which does not reach the standard after being treated by the buffer tank 4. The ozone micro-nano bubble preparation system 7 is used for providing ozone micro-nano bubbles for the ozone aeration tank 5, so that the aeration of the ozone micro-nano bubbles is carried out in the ozone aeration tank 5, and the ammonia nitrogen concentration of underground water is guaranteed to reach the standard. Compared with the traditional aeration method, the micro-nano bubbles have the advantages of small bubbles, large specific surface area, slow rising speed, long retention in water and the like, and can obviously improve the oxidation efficiency of ammonia nitrogen and ozone.
In some embodiments, the ectopic repair device and the treatment process can also be used for treating high-concentration ammonia nitrogen wastewater generated by industry.
According to the ectopic repair device for ammonia nitrogen polluted groundwater provided by the embodiment of the utility model, the obtained beneficial effects at least comprise:
(1) this dystopy prosthetic devices combines together ozone micro-nano bubble and blow off/oxidation tower, carries out the oxidation when blowing off, improves the treatment effeciency.
(2) This dystopy prosthetic devices sets up the ozone aeration tank of degree of depth oxidation behind the air stripping/oxidation tower, carries out the aeration of the micro-nano bubble of ozone, ensures that ammonia nitrogen concentration reduces to below the restoration standard.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments in the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An ectopic repair device for ammonia nitrogen polluted underground water is characterized by comprising a pumping well, a pretreatment tank body, a stripping/oxidation tower, a buffer tank and a reinjection well which are sequentially connected through a pipeline;
the pumping well is used for pumping the ammonia nitrogen polluted underground water and lifting the ammonia nitrogen polluted underground water to a pretreatment tank body on the ground;
the pretreatment tank body is used for carrying out flocculation precipitation and pH adjustment pretreatment on the ammonia nitrogen polluted underground water;
the stripping/oxidation tower is used for stripping and/or oxidizing ammonia nitrogen in the groundwater polluted by the ammonia nitrogen;
the buffer pool is used for buffering, adjusting and detecting the treated underground water, and directly used for reinjection and/or discharge after the buffer pool is detected to reach the reinjection standard;
and the reinjection well is used for reinjecting the qualified underground water to the underground.
2. The ectopic repair device for ammonia nitrogen polluted groundwater according to claim 1, wherein the ectopic repair device comprises an ozone micro-nano bubble preparation system, the ozone micro-nano bubble preparation system comprises an ozone generator, a pressure tank and a micro-nano bubble generator, and is used for preparing micro-nano ozone bubbles; the ozone micro-nano bubble preparation system is connected with the stripping/oxidation tower, and micro-nano ozone bubbles prepared by the ozone micro-nano bubble preparation system are injected into the stripping/oxidation tower.
3. The ectopic remediation device for ammonia nitrogen polluted groundwater according to claim 2, wherein the ectopic remediation device comprises an ozone aeration tank and a clean water tank, the ozone aeration tank is connected with the buffer tank and is positioned at the downstream of the buffer tank, the clean water tank is connected with the ozone aeration tank and is positioned at the downstream of the ozone aeration tank, and the clean water tank is connected with the reinjection well through a pipeline.
4. The ectopic remediation device for ammonia nitrogen contaminated groundwater according to claim 3, wherein the ozone aeration tank is connected with the ozone micro-nano bubble preparation system, and is used for deep oxidation of substandard groundwater treated by the buffer tank.
5. The ectopic remediation device for ammonia nitrogen contaminated groundwater according to claim 4, wherein the ozone micro-nano bubble preparation system is used for providing ozone micro-nano bubbles for the ozone aeration tank, so that ozone micro-nano bubble aeration is performed in the ozone aeration tank, and the ammonia nitrogen concentration of the groundwater is ensured to reach the standard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121419757.6U CN215365230U (en) | 2021-06-24 | 2021-06-24 | A dystopy prosthetic devices for ammonia nitrogen pollutes groundwater |
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| CN202121419757.6U CN215365230U (en) | 2021-06-24 | 2021-06-24 | A dystopy prosthetic devices for ammonia nitrogen pollutes groundwater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934530A (en) * | 2022-04-07 | 2022-08-23 | 生态环境部南京环境科学研究所 | Polluted underground water treatment method for building construction polluted soil |
| CN116282675A (en) * | 2023-02-21 | 2023-06-23 | 浙江佳和生态环境科技有限公司 | In-situ treatment method for ammonia nitrogen in underground water |
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2021
- 2021-06-24 CN CN202121419757.6U patent/CN215365230U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934530A (en) * | 2022-04-07 | 2022-08-23 | 生态环境部南京环境科学研究所 | Polluted underground water treatment method for building construction polluted soil |
| CN116282675A (en) * | 2023-02-21 | 2023-06-23 | 浙江佳和生态环境科技有限公司 | In-situ treatment method for ammonia nitrogen in underground water |
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