阅读说明：本技术 一种地下水防核辐射处理方法 (Underground water nuclear radiation prevention treatment method ) 是由 宋鹏 于 2021-08-15 设计创作，主要内容包括：本发明公开了一种地下水防核辐射处理方法,属于环保技术领域,方法包括在核辐射区域的外侧插打挡板,相连两挡板紧密相连将核辐射区域围成环形的辐射处理区域,所述挡板的下端延伸至承压含水层,所述挡板的上端凸出于地面；在核辐射区域的中心开挖滤液注入井,通过滤液注入井持续注入过滤后的新鲜水,同时持续将核辐射区域底部的污染水排出。采用本发明方法,可以及时对核辐射区域进行阻隔,减少核放射材料对地下水造成的污染,防止辐射扩散。(The invention discloses an underground water nuclear radiation prevention treatment method, which belongs to the technical field of environmental protection, and comprises the steps of inserting baffles at the outer side of a nuclear radiation area, connecting two baffles to be tightly connected to enclose the nuclear radiation area into an annular radiation treatment area, extending the lower ends of the baffles to a confined aquifer, and protruding the upper ends of the baffles to the ground; and excavating a filtrate injection well in the center of the nuclear radiation area, and continuously injecting filtered fresh water through the filtrate injection well while continuously discharging polluted water at the bottom of the nuclear radiation area. The method can block the nuclear radiation area in time, reduce the pollution of nuclear radioactive materials to underground water and prevent radiation diffusion.)

1. The nuclear radiation prevention treatment method for the underground water is characterized by comprising the following steps:

step 1, inserting baffles outside a nuclear radiation area, connecting the two baffles to form an annular radiation treatment area by the nuclear radiation area, extending the lower ends of the baffles to a confined aquifer, and protruding the upper ends of the baffles from the ground;

step 2, a filtrate injection well is excavated in the center of the nuclear radiation area, filtered fresh water is continuously injected through the filtrate injection well, meanwhile, polluted water at the bottom of the nuclear radiation area is continuously discharged, and the process is kept for 7-30 d;

step 3, stopping injecting the fresh water, and continuously discharging the polluted water at the bottom of the nuclear radiation area through a polluted water discharge well;

step 4, continuously injecting lime milk through a filtrate injection well, and discharging redundant wastewater through a polluted water discharge well;

and 5, stopping injecting lime milk, continuously discharging waste water, and paving concrete above the radiation treatment area.

2. A groundwater nuclear radiation protection treatment method as claimed in claim 1, wherein cement powder is added continuously from the contaminated water discharge well after step 4, the cement powder absorbs excess wastewater to become a cement board, and the cement board is pulled out by a lifting device and laid in the radiation treatment area.

3. The underground water nuclear radiation prevention treatment method according to claim 2, wherein the lifting device comprises a lifting sleeve, the side wall of the lifting sleeve is provided with a penetration hole, the cement powder is lifted up and down through the lifting sleeve, and wastewater can enter the lifting sleeve through the penetration hole to be fused with the cement powder.

4. A groundwater nuclear radiation prevention processing method as claimed in claim 3, wherein the surface of the nuclear radiation area is pressurized while adding the cement powder, and the nuclear radiation area is repeatedly crushed by a road roller.

5. A groundwater nuclear radiation protection treatment method as claimed in claim 4, wherein the barium chloride solution is continuously injected through the filtrate injection well in advance before step 4, and radium in the nuclear radiation region is removed by the barium chloride solution.

6. A groundwater nuclear radiation protection treatment method as claimed in claim 5, wherein after the rolling is finished, a plurality of blind holes are formed in the surface of the nuclear radiation area, and the blind holes extend downwards.

7. A groundwater nuclear radiation protection treatment method as claimed in claim 6, wherein a plurality of layers of lime powder are spread in the nuclear radiation area.

8. A groundwater nuclear radiation protection treatment method as claimed in any one of claims 1 to 7, wherein the baffle is provided with a cavity inside, and the cavity is filled with concrete.

Technical Field

The invention belongs to the technical field of environmental protection, and particularly relates to a nuclear radiation prevention treatment method for underground water.

Background

Nuclear energy leakage, also known as nuclear burnout, is a serious sequelae of nuclear energy reaction furnace failure. The nuclear energy radiation emitted by nuclear energy leakage is far less powerful and less extensive than that of nuclear weapons, but can cause biological casualties to a certain extent. The general effect of nuclear leakage on personnel is reflected in nuclear radiation, also called radioactive material, which is absorbed into the body through respiratory inhalation, skin wounds and the digestive tract, causing internal radiation. When sudden nuclear leakage occurs, if the nuclear leakage area is not timely treated, nuclear waste water easily enters underground water, greater nuclear pollution is caused to downstream places and the like, and the human body can be seriously damaged.

Disclosure of Invention

In view of the above, the present invention provides a method for treating underground water to prevent nuclear radiation, which can block a nuclear radiation area in time, reduce pollution of nuclear radiation materials to the underground water, and prevent radiation diffusion.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention relates to an underground water nuclear radiation prevention treatment method, which comprises the following steps:

step 1, inserting baffles outside a nuclear radiation area, connecting the two baffles to form an annular radiation treatment area by the nuclear radiation area, extending the lower ends of the baffles to a confined aquifer, and protruding the upper ends of the baffles from the ground;

step 2, a filtrate injection well is excavated in the center of the nuclear radiation area, filtered fresh water is continuously injected through the filtrate injection well, meanwhile, polluted water at the bottom of the nuclear radiation area is continuously discharged, and the process is kept for 7-30 d;

step 3, stopping injecting the fresh water, and continuously discharging the polluted water at the bottom of the nuclear radiation area through a polluted water discharge well;

step 4, continuously injecting lime milk through a filtrate injection well, and discharging redundant wastewater through a polluted water discharge well;

and 5, stopping injecting lime milk, continuously discharging waste water, and paving concrete above the radiation treatment area.

Further, after step 4, cement powder is continuously added from the contaminated water discharge well, said cement powder absorbing the excess waste water and becoming a cement board which is pulled out by the lifting device and laid in the radiation treatment area.

Further, hoisting device is including promoting the sleeve, the infiltration hole has been seted up on promoting the telescopic lateral wall, the cement powder passes through promote the sleeve from top to bottom, and waste water can get into in the promotion sleeve through the infiltration hole and fuse with the cement powder.

And pressurizing the ground surface of the nuclear radiation area while adding cement powder, and repeatedly rolling the nuclear radiation area by a road roller.

Further, before step 4, a barium chloride solution was continuously injected in advance through the filtrate injection well, and radium in the nuclear radiation region was removed by the barium chloride solution.

Further, after the rolling is finished, a plurality of blind holes are formed in the ground surface of the nuclear radiation area, and the blind holes extend downwards.

Further, a plurality of layers of lime powder are spread in the nuclear radiation area.

Further, the inside of baffle is provided with the cavity, it has the concrete to fill in the cavity.

The invention has the beneficial effects that:

according to the method for preventing the nuclear radiation of the underground water, the baffle is inserted and beaten at the outer side of the nuclear radiation area, the two baffles are connected and tightly connected to enclose the nuclear radiation area into the annular radiation treatment area, the circulation of polluted underground water and fresh underground water below the nuclear radiation area is reduced, and the nuclear radiation area can be blocked in time. The upper end of the baffle plate protrudes out of the ground to form a certain barrier, so that wild animals are prevented from entering and being radiated, and dynamic flowing of radiation is also avoided.

In the method, the polluted underground water below the nuclear radiation area can be continuously replaced by continuously injecting fresh water, and the polluted underground water is continuously purified and diluted, so that the pollution to the underground water is reduced. The lime milk is introduced to remove the radiation elements, so that the lime milk can be precipitated in the nuclear radiation area and cannot flow, thereby reducing the pollution of nuclear radioactive materials to underground water and preventing radiation diffusion.

Additional advantages, objects, and features of the invention will be set forth 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 invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:

FIG. 1 is a schematic diagram of the method of the present invention.

Detailed Description

As shown in fig. 1, the method for preventing nuclear radiation from underground water comprises the following steps:

step 1, inserting and striking a baffle 1 outside a nuclear radiation area, wherein the baffle 1 is arc-shaped, the lower end of the baffle 1 can be provided with a tip, a groove can be dug before inserting and striking, so that pile driving operation can be facilitated, two baffles 1 are connected and tightly connected to enclose the nuclear radiation area into an annular radiation treatment area, the lower end of the baffle 1 extends to a confined aquifer 4, and the upper end of the baffle 1 protrudes out of the ground by 1-3 m; wherein 2 is a covering layer, and 3 is an clay layer.

Step 2, a filtrate injection well is excavated in the center of the nuclear radiation area, filtered fresh water without radiation is adopted as filtrate, the filtrate injection well penetrates into the confined aquifer 4, the filtered fresh water is continuously injected through the filtrate injection well, meanwhile, polluted water at the bottom of the nuclear radiation area is continuously discharged, and the process is kept for 7-30 d;

step 3, stopping injecting the fresh water, continuously discharging the polluted water at the bottom of the nuclear radiation area through a polluted water discharge well, and discharging redundant wastewater as much as possible;

step 4, continuously injecting lime milk through a filtrate injection well, neutralizing by adding the lime milk to precipitate harmful substances such as uranium, radium and the like, and discharging redundant wastewater through a polluted water discharge well;

and 5, stopping injecting lime milk, continuously discharging waste water, and paving concrete above the radiation treatment area.

According to the method for preventing the nuclear radiation of the underground water, the baffle plate 1 is inserted and beaten at the outer side of the nuclear radiation area, the two baffle plates 1 are connected and tightly connected to enclose the nuclear radiation area into the annular radiation treatment area, the circulation of polluted underground water and fresh underground water below the nuclear radiation area is reduced, and the nuclear radiation area can be blocked in time. The upper end of the baffle plate 1 protrudes out of the ground to form a certain barrier, so that wild animals are prevented from entering and being radiated, and dynamic flowing of radiation is also avoided.

In the method, the polluted underground water below the nuclear radiation area can be continuously replaced by continuously injecting fresh water, and the polluted underground water is continuously purified and diluted, so that the pollution to the underground water is reduced. The lime milk is introduced to remove the radiation elements, so that the lime milk can be precipitated in the nuclear radiation area and cannot flow, thereby reducing the pollution of nuclear radioactive materials to underground water and preventing radiation diffusion.

In this embodiment, after step 4, cement powder is continuously added from the contaminated water drainage well, which absorbs excess wastewater and becomes a cement board that is pulled out by the lifting device and laid in the radiation treatment area. The lifting device comprises a lifting sleeve, a penetration hole is formed in the side wall of the lifting sleeve, cement powder passes through the lifting sleeve and is lifted up and down, wastewater can enter the lifting sleeve through the penetration hole and is fused with the cement powder, the bottom of the lifting sleeve can be provided with a detachable end cover, the cement plate can be repeatedly utilized after being discharged, residual wastewater at the bottom is continuously absorbed, and the cleaning efficiency is improved. The ground surface of the nuclear radiation area is pressurized while cement powder is added, and the nuclear radiation area is repeatedly rolled by a road roller, so that redundant waste water at the bottom can seep out and can be timely treated.

In this example, a barium chloride solution was continuously injected through a filtrate injection well in advance before step 4, and barium and radium coprecipitations were generated from the barium chloride solution to remove radium in the nuclear radiation region.

In this embodiment, after the rolling, the ground surface of the nuclear radiation area is provided with a plurality of blind holes, and the blind holes extend downward. And spreading a plurality of layers of lime powder in the nuclear radiation area to further remove the nuclear wastewater.

In this embodiment, a cavity is arranged inside the baffle 1, and concrete is filled in the cavity to reduce the diffusion of nuclear radiation.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.