CN215403555U - Cadmium overproof pollution rice field re-breeding system - Google Patents
Cadmium overproof pollution rice field re-breeding system Download PDFInfo
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- CN215403555U CN215403555U CN202120958310.XU CN202120958310U CN215403555U CN 215403555 U CN215403555 U CN 215403555U CN 202120958310 U CN202120958310 U CN 202120958310U CN 215403555 U CN215403555 U CN 215403555U
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Abstract
The utility model discloses a cadmium overproof polluted paddy field re-breeding system which is communicated with a paddy field irrigation water source and comprises a reservoir, a solid-liquid separation tank and an adsorption tank, wherein the reservoir can be communicated with the paddy field irrigation water source in an opening and closing manner; an electrophoresis device is arranged in the reservoir, and a water outlet of the reservoir is communicated with a water inlet of the solid-liquid separation tank; the water outlet of the solid-liquid separation tank is communicated with the water inlet of the humic acid adding tank through the adsorption tank; and the water outlet of the humic acid adding tank is communicated with a paddy field irrigation water source or a water inlet for storing water. The cadmium pollution rice field re-breeding system with the cadmium exceeding standard can quickly treat cadmium pollution in a rice field, and can purify water bodies from the source through water bodies in rice field irrigation water sources, so that cadmium ions in the water bodies are prevented from polluting the rice field.
Description
Technical Field
The utility model relates to the technical field of soil heavy metal treatment materials, in particular to a rice field re-breeding system with cadmium exceeding standard pollution.
Background
In recent years, with the development of the Chinese economic society, the heavy metal pollution of the soil in China is accumulated for a long time in the industrialized development process under the influence of natural factors and human activities. The discharge of industrial three wastes, the diffusion of automobile exhaust, the unorganized discharge of cadmium-containing sewage and the use of cadmium-containing pesticides and chemical fertilizers in large quantities lead to the excessive cadmium content of agricultural products in China, and the cadmium-polluted farmland has large polluted area, serious degree and trend of increasing year by year. The investigation bulletin of national soil pollution conditions jointly issued by the environmental protection department and the national soil resources department in 2014 shows that the exceeding rate of the soil point of farmland in China reaches 19.4 percent, cadmium is the first pollution, and atmospheric dust reduction, sewage irrigation, sludge agriculture and agricultural fertilization become main pollution sources of cadmium pollution of agricultural soil.
The rice is one of three major food crops in China, more than 60 percent of people in China use rice as staple food, the excessive cadmium content in rice plants has influence on the growth and development of the rice and the yield and quality of the rice, and the life and health of people and livestock are seriously threatened through the biological amplification effect of a food chain. Since cadmium is difficult to degrade, remediation is generally accomplished by changing the effectiveness of the heavy metal or by reducing the heavy metal content through physical, chemical, or biological remediation techniques. Cadmium in the environment is absorbed by rice plants after entering an agricultural environment and migrates to the overground part to be enriched in rice, thereby causing cadmium pollution of the rice. The rice has strong habit of absorbing cadmium, and the cadmium can be enriched to the rice through irrigation water or soil, so that the cadmium pollution situation of the Chinese rice and the rice is severe, and the cadmium is a main cadmium exposure source for people taking the rice as staple food.
Aiming at the problem of cadmium pollution, the cadmium pollution is mainly repaired by means of bioremediation and soil improvement at present, but the cadmium pollution is easy to cause secondary pollution due to long improvement time.
Disclosure of Invention
Aiming at one of the technical problems, the utility model provides a cadmium overproof polluted rice field re-breeding system which can quickly treat cadmium pollution in a rice field and reduce cadmium enrichment in rice.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a cadmium overproof polluted paddy field re-breeding system is communicated with a paddy field irrigation water source and comprises a reservoir, a solid-liquid separation tank and an adsorption tank, wherein the reservoir can be communicated with the paddy field irrigation water source in an opening and closing manner; an electrophoresis device is arranged in the reservoir, and a water outlet of the reservoir is communicated with a water inlet of the solid-liquid separation tank; the water outlet of the solid-liquid separation tank is communicated with the water inlet of the humic acid adding tank through the adsorption tank; and the water outlet of the humic acid adding tank is communicated with a paddy field irrigation water source or a water inlet for storing water.
Further, a bagged solid adsorbent is arranged in the solid-liquid separation tank.
Furthermore, a chelate fiber screen plate is arranged in the adsorption tank and is arranged between the water outlet of the adsorption tank and the water inlet of the adsorption tank.
Further, the solid-liquid separation tank comprises a filtering tank and a sedimentation tank, the bottom of the filtering tank is communicated with a water outlet of the water storage tank, the upper part of the filtering tank is communicated with the sedimentation tank, and the sedimentation tank is communicated with the adsorption tank through a filter.
Furthermore, a blocking net is arranged between the outlet of the filtering tank and the inlet of the sedimentation tank.
Further, a water suction pump is arranged between the filter and the sedimentation tank.
Furthermore, a detection station is arranged between the inlet end of the filter tank and the water outlet of the water storage tank, and a cadmium ion concentration detector for detecting the concentration of cadmium ions is arranged in the detection station.
Further, the electrophoresis apparatus is provided with a cathode sheet and an anode sheet; the cathode sheet is arranged at a water outlet of the water storage tank, and the anode sheet is arranged at a water inlet of the water storage tank.
Further, humic acid adds the groove including storage tank check and mixed groove check, the storage tank check is used for storing humic acid, is provided with communicating pipe between storage tank check and the mixed groove check, be provided with the peristaltic pump on communicating pipe, the end of intaking and the adsorption tank intercommunication of mixed groove check, the play water end and the paddy field irrigation water source intercommunication of mixed groove check.
Furthermore, a humic acid concentration detector is arranged in the mixing groove grid and is electrically connected with the peristaltic pump.
The utility model has the beneficial effects that:
the cadmium overproof polluted paddy field re-breeding system purifies the water body from the source through the water body in the paddy field irrigation water source, so that cadmium ions in the water body are prevented from polluting the paddy field; in addition, cadmium ions are enriched by utilizing an electrophoresis device in the water storage tank, so that the cadmium ions in the water body can be conveniently treated; can filter the rubbish debris in the water effectively through the solid-liquid separation pond, the adsorption tank of being convenient for adsorbs cadmium ion, adds humic acid through humic acid interpolation groove simultaneously, utilizes humic acid to handle heavy metal ion, has reduced secondary pollution, also can improve soil fertility, improves soil property and produces positive influence, and humic acid can also promote that heavy metal is turned into the organic binding state that is difficult to absorb or to the conversion of residue state from the form that is easily absorbed and utilized by the plant.
Drawings
The following detailed description of embodiments of the utility model is provided in conjunction with the appended drawings, in which:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: a paddy field irrigation water source 10, a reservoir 20, a solid-liquid separation tank 30, a filter tank 31, a sedimentation tank 32, a filter 33, a barrier net 34, an adsorption tank 40, a chelate fiber net plate 41, an electrophoresis device 50, a cathode sheet 51, an anode sheet 52, a humic acid adding tank 60, a storage tank lattice 61, a mixing tank lattice 62, a communicating pipe 63, a humic acid concentration detector 64, a peristaltic pump 65 and a detection station 70
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present application provides a system for repopulating a paddy field polluted by excessive cadmium, which is communicated with a paddy field irrigation water source 10, and comprises a water reservoir 20, a solid-liquid separation tank 30 and an adsorption tank 40, wherein the water reservoir 20 can be communicated with the paddy field irrigation water source 10 in an open and close manner; an electrophoresis device 50 is arranged in the water storage tank 20, and a water outlet of the water storage tank 20 is communicated with a water inlet of the solid-liquid separation tank 30; the water outlet of the solid-liquid separation tank 30 is communicated with the water inlet of the humic acid adding tank 60 through the adsorption tank 40; the water outlet of the humic acid adding groove 60 is communicated with the water inlet of the paddy field irrigation water source 10 or the water storage tank 20. The paddy field irrigation water source 10 in the application is mainly a canal, a reservoir or a stream and the like in a plot farmland, so that cadmium ions can be absorbed from a root source, and the cadmium ions are prevented from being enriched in a paddy field. In addition, cistern 20 can be conventional pond, purification tank or the structure of retaining in this application, and it is mainly used for the electrophoresis water, for this reason in order to protect electrophoresis equipment and avoid debris to drop, is provided with large-scale multistage fence between cistern 20 and the paddy field irrigation water source 10, and isolated floater so avoids the floater to damage electrophoresis apparatus 50. Wherein, if the water that purifies through this system is up to standard, then can directly let in and use in paddy field irrigation water source 10, if the content of cadmium ion fails up to standard, then continue to let in cistern 20 and purify the absorption many times, realize circulation and purify, improve the efficiency of work. In addition, the reservoir 20 can be connected to the cultivated land or the paddy field through a pipeline, similarly to the paddy field irrigation water source 10, and only the schematic diagram of the connection of the outlet of the humic acid adding tank 60 to the paddy field irrigation water source 10 is shown in fig. 1 of the present application.
Referring to fig. 1, in some embodiments, a bagged solid adsorbent, which may be titanium gypsum, shell activated carbon, or the like, is disposed in the solid-liquid separation tank 30. In another embodiment, the solid-liquid separation tank 30 comprises a filtering tank 31 and a settling tank 32, wherein the bottom of the filtering tank 31 is communicated with the water outlet of the water reservoir 20, the upper part of the filtering tank 31 is communicated with the settling tank 32, and the settling tank 32 is communicated with the adsorption tank 40 through a filter 33. Wherein, an adsorbent is arranged in the filter 33 for adsorbing cadmium ions. The water inlet of the filtering tank 31 is arranged at the bottom, and the water outlet is arranged at the top, so that when the water body enriched with cadmium ions in the water storage tank 20 and the slurry in the communicated water are brought into the filtering tank 31, the sediment sedimentation of the water body can be effectively improved, and the large-particle sediment is prevented from being brought into the next purifying device. In addition, the sedimentation tank 32 is mainly used for settling the primary sedimentation water body flowing out of the filter tank 31, and can accelerate the sedimentation of the water body in the sedimentation tank 32.
Further, in order to reduce the floating objects entering the sedimentation tank 32, a barrier net 34 is arranged between the outlet of the filter tank 31 and the inlet of the sedimentation tank 32, and the barrier net 34 is a fine-mesh steel wire mesh or gauze. In addition, be provided with suction pump 35 between filter 33 and the sedimentation tank 32, utilize suction pump 35 can realize the circulation of whole system of bringing back a contraceptive, filter 33 intercommunication sedimentation tank 32's delivery port simultaneously, can realize sucking the clarified water body of sedimentation tank 32 upper strata into filter 33 through the mode of sucking for this reason and filter, improved filterable effect, also can avoid the mud of sedimentation tank 32 to block up filter 33 simultaneously.
Referring further to fig. 1, a detection station 70 is disposed between the inlet end of the filtration tank 31 and the outlet of the water reservoir 20, and a cadmium ion concentration detector for detecting the concentration of cadmium ions is disposed in the detection station 70. The main purpose of the detection station 70 is to detect the concentration of cadmium ions and other heavy metal ions contained in the water body enriched in the water storage tank 20, so that when the water body in the water storage tank 20 reaches the standard, the solid-liquid separation tank 30 does not need to reprocess the water body in the water storage tank 20, and at this time, the cadmium ion concentration detector can control the water pump 35 to stop working, so that the work pause of the whole re-cultivation system is realized, and the intelligent control is realized.
Referring further to fig. 1, a chelate fiber net plate 41 is disposed in the adsorption tank 40, and the chelate fiber net plate 41 is disposed between the water outlet of the adsorption tank 40 and the water inlet of the adsorption tank 40. The chelate fibers on the chelate fiber mesh plate 41 are fibrous polymer separation materials, have strong adsorption capacity on copper, lead and cadmium ions, have high adsorption rate and are easy to regenerate, so the chelate fiber mesh plate is a good adsorption material and reduces secondary pollution. Wherein, the chelate fiber can adopt a preparation method of an ultrafine chelate fiber with the patent number of 201610908274. X-and the chelate fiber disclosed in the application thereof, and the application is not detailed here.
Referring to fig. 1, since cadmium ions or some heavy metal ions are positively charged, the electrophoresis apparatus 50 is provided with a cathode sheet 51 and an anode sheet 52 for this purpose; the cathode sheet 51 is arranged at the water outlet of the water reservoir 20, and the anode sheet 52 is arranged at the water inlet of the water reservoir 20. By arranging the cathode sheet 51 on the water outlet of the water reservoir 20, the positively charged ions can be effectively concentrated on the water outlet of the water reservoir 20, which facilitates subsequent system purification.
Further, the humic acid adding tank 60 comprises a storage tank lattice 61 and a mixing tank lattice 62, the storage tank lattice 61 is used for storing humic acid, a communicating pipe 63 is arranged between the storage tank lattice 61 and the mixing tank lattice 62, a peristaltic pump 65 is arranged on the communicating pipe 63, the water inlet end of the mixing tank lattice 62 is communicated with the adsorption tank 40, and the water outlet end of the mixing tank lattice 62 is communicated with the paddy field irrigation water source 10. In addition, a humic acid concentration detector 64 is arranged in the mixing tank 62, and the humic acid concentration detector 64 is electrically connected with a peristaltic pump 65. Through the cooperation of peristaltic pump 65 and humic acid concentration detector 64, can realize mixing the concentration automatically regulated of humic acid in the groove 62, improve intellectuality. The humic acid is a charged high molecular organic polymer colloid, contains active functional groups such as carboxyl, phenolic hydroxyl, amino and the like, has very high chemical activity, has strong binding capacity to a plurality of metal ions in the environment, and can promote the heavy metal to be converted into organic binding state and residue state which are difficult to be absorbed from being easily absorbed and utilized by plants.
The cadmium overproof polluted paddy field re-breeding system purifies the water body from the source through the water body in the paddy field irrigation water source 10, and prevents cadmium ions in the water body from polluting the paddy field; in addition, the cadmium ions are enriched by the electrophoresis device 50 in the water storage tank 20, so that the cadmium ions in the water body can be conveniently treated; can filter the rubbish debris in the water effectively through solid-liquid separation pond 30, the adsorption tank 40 of being convenient for adsorbs cadmium ion, adds humic acid through humic acid interpolation groove 60 simultaneously, utilizes humic acid to handle heavy metal ion, has reduced secondary pollution, also can improve soil fertility, improves soil property and produces positive effect, and humic acid can also promote that heavy metal is turned into the organic binding state that is difficult to absorb or to the conversion of residue state from the form that is easily absorbed and utilized by the plant.
The above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered within the technical solutions of the present invention.
Claims (10)
1. A cadmium overproof polluted paddy field re-breeding system is communicated with a paddy field irrigation water source and is characterized by comprising a reservoir, a solid-liquid separation tank and an adsorption tank, wherein the reservoir can be communicated with the paddy field irrigation water source in an opening and closing manner; an electrophoresis device is arranged in the reservoir, and a water outlet of the reservoir is communicated with a water inlet of the solid-liquid separation tank; the water outlet of the solid-liquid separation tank is communicated with the water inlet of the humic acid adding tank through the adsorption tank; and the water outlet of the humic acid adding groove is communicated with a paddy field irrigation water source or a water inlet of a reservoir.
2. The rice field re-breeding system with cadmium exceeding pollution as claimed in claim 1, wherein a bagged solid adsorbent is arranged in the solid-liquid separation tank.
3. The rice field re-breeding system of cadmium exceeding pollution as claimed in claim 1, wherein a chelate fiber net plate is arranged in said adsorption tank, said chelate fiber net plate is arranged between the water outlet of the adsorption tank and the water inlet of the adsorption tank.
4. The rice field re-breeding system for cadmium overproof polluted rice as claimed in claim 1, wherein the solid-liquid separation tank comprises a filtering tank and a sedimentation tank, the bottom of the filtering tank is communicated with the water outlet of the water storage tank, the upper part of the filtering tank is communicated with the sedimentation tank, and the sedimentation tank is communicated with the adsorption tank through a filter.
5. The rice field re-breeding system with cadmium exceeding pollution as claimed in claim 4, wherein a barrier net is arranged between the outlet of the filtering tank and the inlet of the sedimentation tank.
6. The rice field re-breeding system with cadmium exceeding pollution as claimed in claim 4, wherein a water pump is arranged between the filter and the sedimentation tank.
7. The rice field re-breeding system for cadmium exceeding pollution as claimed in claim 4, wherein a detection station is arranged between the inlet end of the filtering tank and the outlet of the water storage tank, and a cadmium ion concentration detector for detecting cadmium ion concentration is arranged in the detection station.
8. The rice field repopulating system with cadmium exceeding pollution as claimed in claim 1, wherein said electrophoresis device is provided with a cathode strip and an anode strip; the cathode sheet is arranged at a water outlet of the water storage tank, and the anode sheet is arranged at a water inlet of the water storage tank.
9. The rice field re-breeding system with cadmium exceeding pollution as claimed in claim 1, wherein the humic acid adding tank comprises a storage tank lattice and a mixing tank lattice, the storage tank lattice is used for storing humic acid, a communicating pipe is arranged between the storage tank lattice and the mixing tank lattice, a peristaltic pump is arranged on the communicating pipe, a water inlet end of the mixing tank lattice is communicated with the adsorption tank, and a water outlet end of the mixing tank lattice is communicated with a rice field irrigation water source.
10. The rice field re-breeding system for cadmium overproof polluted rice as claimed in claim 9, wherein a humic acid concentration detector is arranged in the mixing groove grid, and the humic acid concentration detector is electrically connected with a peristaltic pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120958310.XU CN215403555U (en) | 2021-05-07 | 2021-05-07 | Cadmium overproof pollution rice field re-breeding system |
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| CN202120958310.XU CN215403555U (en) | 2021-05-07 | 2021-05-07 | Cadmium overproof pollution rice field re-breeding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892612A (en) * | 2022-02-10 | 2022-08-12 | 江西省中蔚建设集团有限公司 | Bidirectional reverse flow irrigation and water conservancy construction method |
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- 2021-05-07 CN CN202120958310.XU patent/CN215403555U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892612A (en) * | 2022-02-10 | 2022-08-12 | 江西省中蔚建设集团有限公司 | Bidirectional reverse flow irrigation and water conservancy construction method |
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