CN209797588U - Solar intermittent aeration type biochar-based sewage purification artificial wetland system - Google Patents
Solar intermittent aeration type biochar-based sewage purification artificial wetland system Download PDFInfo
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- CN209797588U CN209797588U CN201920234344.7U CN201920234344U CN209797588U CN 209797588 U CN209797588 U CN 209797588U CN 201920234344 U CN201920234344 U CN 201920234344U CN 209797588 U CN209797588 U CN 209797588U
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- artificial wetland
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Abstract
The utility model relates to a solar intermittent aeration type biochar-based sewage purification constructed wetland system, which comprises a solar cell panel, a storage battery, an inverter, a generator, aeration equipment, an aeration pipe, a gas flowmeter, a gate valve, a water pump, an artificial wetland unit, a water inlet pipe and a water outlet pipe; the solar cell panel is connected with the aeration pipe sequentially through a storage battery, an inverter, a generator, aeration equipment, a gas flowmeter and a gate valve; the inverter is connected with the generator. The utility model discloses use solar energy to provide intermittent type nature aeration for the wetland as the energy in order to reach the purpose of reinforceing denitrogenation and getting rid of organic matter, use novel green material-biochar simultaneously as the wetland filler, not only can provide the slowly-releasing carbon source for the denitrification, saturated filler still can carry out recycle as soil amendment, possesses wide application and popularization prospect.
Description
Technical Field
The utility model belongs to the technical field of sewage purification system structure in the environmental protection field, especially, belong to a solar energy intermittent aeration formula charcoal based sewage purification constructed wetland system structure technical aspect.
Background
The artificial wetland is a sewage treatment technology with low construction and operation cost, simple and convenient operation and maintenance and good ecological environment function, and is widely applied to the treatment of various sewage. However, the artificial wetland generally has the conditions of low content of internal dissolved oxygen and insufficient denitrification carbon source, so that the sewage purification efficiency, especially the denitrification efficiency is not high, the occupied area is large, and the application of the artificial wetland is limited.
Aeration is an effective method for solving the problem of low dissolved oxygen content in the wetland, but the power of a power grid is used as power for aeration equipment, so that energy is consumed, the low-cost advantage of the artificial wetland is reduced, the power grid line has site limitation, and the aeration equipment is not convenient to apply in sewage treatment in dispersive and remote areas. On the other hand, the continuous aeration not only consumes more energy, but also is not beneficial to the denitrification process due to higher dissolved oxygen content, and the denitrification performance of the wetland cannot be obviously improved. The heterotrophic denitrification depends on the content and the biological availability of organic carbon sources, and the organic carbon content in many sewage, such as tail water of sewage plants, agricultural runoff and the like, is generally low, so that the denitrification efficiency of the wetland is limited. In addition, the treatment efficiency of the wetland filler after saturation is greatly affected, and the disposal of the saturated filler is also one of the troublesome problems.
Disclosure of Invention
The utility model discloses it is low to have led to the pollutant aerobic decomposition conversion rate that has leaded to well to traditional wetland dissolved oxygen content low, the oxygen consumption cost of oxygenating is high, the available organic carbon source of denitrification is not enough, wetland filler saturation aftertreatment difficulty scheduling problem provides a solar energy intermittent aeration formula charcoal based sewage purification constructed wetland system.
The system of the utility model uses solar energy as the energy source to provide intermittent aeration for the wetland so as to create alternate aerobic and anoxic environments to achieve the purposes of sewage denitrification and organic matter removal, and simultaneously uses novel green material-biochar as the filler of the wetland, thereby not only providing a slow-release carbon source for denitrification, but also using saturated filler as a soil conditioner for recycling, and having wide application and popularization prospects. The utility model has the characteristics of the pollutant gets rid of efficiently, technical method is simple and easy, green energy-conservation, and the material is cheap easily to be obtained etc, is applicable to the purification treatment of all kinds of distributed sewage.
The utility model adopts the following technical scheme to realize.
A solar intermittent aeration type biochar-based sewage purification constructed wetland system comprises a solar cell panel, a storage battery, an inverter, a generator, aeration equipment, an aeration pipe, a gas flowmeter, a gate valve, a water pump, an artificial wetland unit, a water inlet pipe and a water outlet pipe; the solar cell panel is connected with the aeration pipe through a storage battery, an inverter, aeration equipment, a gas flowmeter and a gate valve in sequence; the inverter is connected with the generator; the aeration pipe is horizontally inserted in the artificial wetland unit; the water inlet pipe is arranged above the artificial wetland unit, and one end of the water inlet pipe is connected with a sewage source through a water pump; the water outlet pipe is connected with the bottom of the artificial wetland unit; the artificial wetland unit is provided with a wetland plant layer, a biochar packing layer and a gravel bearing layer from top to bottom in sequence; the aeration pipe is arranged between the biological carbon packing layer and the gravel bearing layer; the wall of the aeration pipe is provided with micro aeration holes, so that an aerobic environment can be created for effectively providing oxygen for the wetland when the aeration equipment is opened; the water outlet pipe is connected with a water outlet valve. The aeration equipment is the existing equipment and is powered by solar energy to carry out intermittent aeration. The intermittent aeration is controlled by an adjustable on-off switch. Setting the area of a solar panel according to actual needs; the power of the solar power generation board and the aeration equipment and the number of the aeration pipes are adapted to the size of the artificial wetland unit, the quality of sewage and the treatment requirement.
Furthermore, the part of the rear section of the aeration pipe arranged in the artificial wetland unit of the utility model is composed of a horizontal section, a vertical section and a row-dividing section in sequence, wherein the horizontal section and the front section of the aeration pipe are integrated; the vertical section extends vertically downwards to the upper part of the gravel supporting layer from a biological carbon packing layer of the artificial wetland unit; the row section is set into a plurality of sections, and each section is arranged in parallel.
Further, be, the solar cell panel lower part be provided with portable support, be provided with the battery in addition and be connected with solar cell panel.
Further, constructed wetland unit in the plant layer of wetland contain for the alternative or the combination of two of loosestrife, reed, its survival ability of surviving the winter is stronger and have better removal effect to the pollutant in the sewage, planting density is 5 trunk/square meter.
Further, constructed wetland unit in charcoal packing layer by two kinds or three kinds arbitrary of three kinds of waste plants of coconut shell, reed straw, garrulous branch constitute for raw materials, specifically for by two kinds or three kinds arbitrary of three kinds of waste plants of coconut shell, reed straw, garrulous branch for raw materials 300 supplyes oxygen deficiency condition pyrolysis 2-4 hours preparation gained product constitution under 500 ℃. Plants grow well on the biological carbon filler layer.
Furthermore, the diameter of the biochar in the biochar packing layer in the artificial wetland unit is 3-10 mm.
Furthermore, the diameter of the gravel particle of the gravel bearing layer in the artificial wetland unit is 8-15mm, and the thickness is 5-7 mm.
Further, solar cell panel be flexible thin-film solar cell panel. The support is provided with a support surface facing the sun, and the flexible thin-film solar cell panel is attached to the support surface. The storage battery stores electric energy and can supply power to the system at night and in cloudy days. The flexible solar cell panel has the characteristics of flexibility, ultrathin property, adhesiveness, weak light and the like, the supporting surface of the support 2 can be shaped into planes, curved surfaces and the like with different shapes, and the flexible solar cell panel 1 can be fixed on the supporting surface of the support in a back adhesive adhering mode. The solar energy is used for generating power and connecting the inverter and the generator, and the power voltage is converted to 220V for the operation of the aeration equipment. When sunlight exists, the solar cell panel can continuously convert solar energy into electric energy to be stored in the storage battery. The storage battery supplies power to the aeration equipment intermittently so as to achieve the effect of intermittent aeration. The aeration equipment is controlled by a switch capable of adjusting the on-off time, and the aeration and aeration stop time is adjusted according to the sewage property and the treatment requirement, for example, the aeration time is set to be 2 hours, and the aeration stop time is set to be 4 hours. Air enters the wetland through the aeration pipe to supply the aerobic decomposition of microorganisms for removing organic matters, converting ammonia nitrogen and the like. The intermittent aeration mode can greatly save electric energy and reduce the scale of the solar panel and the storage battery. Meanwhile, the biochar filler has stronger adsorption and removal capacity on phosphorus.
Further, the utility model discloses used little aeration pipe aperture is 0.03 ~ 0.06mm, and micropore arrangement density is 700 ~ 1200/meter. The aeration pipe is divided into a horizontal section, a vertical section and a row-dividing section which are arranged in three sections, and the micro aeration pipe is arranged on the row-dividing section.
Further, the utility model discloses the cover is equipped with the PVC pipe that plays the guard action on the branch row section of aeration pipe, has seted up the trompil on the every PVC pipe. The aeration pipe is arranged in a PVC pipe with the aperture of 1mm to resist the pressure of the filler and prevent the blockage of the aeration pipe.
The utility model discloses an operating method, including following step: introducing sewage into the artificial wetland unit through a water inlet pipe, and controlling aeration and aeration stop time according to the water quality characteristics of the sewage, wherein if the concentration of organic matters and ammonia nitrogen in the sewage is higher, the aeration time is prolonged, and vice versa; and the sewage is remained and purified in the wetland for a period of time and then is discharged from a water outlet pipe arranged at the bottom of the artificial wetland unit.
The utility model has the advantages that 1) the product obtained by pyrolyzing the waste plant materials such as coconut shell, reed straw, branches and the like under the anoxic condition, namely biochar, is used as a novel filler of the wetland, the raw materials are easy to obtain, the cost is low, and the resource utilization of plant wastes can be realized; 2) the biochar has low cost and larger specific surface area, is beneficial to the attachment growth of microorganisms, has strong adsorption-regeneration capability on pollutants in sewage, and can slowly release a certain amount of organic substances to supply for the denitrification process; 3) if the biochar filler needs to be replaced after saturation, the biochar filler can be used for realizing resource utilization in aspects of soil property improvement, pollution restoration and the like; 4) the solar energy is used as an energy source to provide intermittent aeration for the wetland system, and the system can be flexibly applied to various dispersed sewage treatments, especially areas with sufficient sunlight; 5) the electric energy stored by the storage battery supplies power for the aeration equipment, so that the system can be conveniently and normally used in cloudy days or at night; 6) the adopted intermittent aeration mode can create alternate aerobic and anoxic environments in the wetland, is beneficial to the denitrification process, and can remarkably improve the sewage purification effect of the wetland particularly at low temperature.
The utility model discloses a system has been directed against the low, aeration with high costs of dissolved oxygen content in traditional wetland well, the available organic carbon source of denitrification is not enough, wetland filler saturation aftertreatment utilizes difficult scheduling problem, and the technical method who adopts is simple and easy, and green is energy-conserving, and the material that chooses for use is cheap easily obtained, and it possesses wide application and popularization prospect to use it for decentralized sewage treatment.
The invention will be further explained with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional view of the aeration tube of fig. 1.
Reference numerals: the system comprises a solar cell panel 1, a support 2, a storage battery 3, an inverter 4, a generator 5, an aeration device 6, a gas flowmeter 7, a gate valve 8, an artificial wetland unit 9, a biochar packing layer 10, a gravel bearing layer 11, a water inlet pipe 12, a wetland plant layer 13, a water outlet pipe 14, a water pump 15, a PVC pipe 16, a water outlet valve 17 and an aeration pipe 18.
Detailed Description
The following description and the accompanying drawings refer to fig. 1 and fig. 2 for a detailed description of the structure distribution, the arrangement and the operation method of the present invention.
A solar intermittent aeration type biochar-based sewage purification artificial wetland system comprises a solar cell panel 1, a storage battery 3, an inverter 4, a generator 5, an aeration device 6, an aeration pipe 18, a gas flowmeter 7, a gate valve 8, a water pump 15, an artificial wetland unit 9, a water inlet pipe 12 and a water outlet pipe 14; the solar cell panel 1 is connected with an aeration pipe 18 through a storage battery 3, an inverter 4, an aeration device 6, a gas flowmeter 7 and a gate valve 8 in sequence; the inverter 4 is connected with the generator 5; the aeration pipe 18 is horizontally inserted in the artificial wetland unit 9; the water inlet pipe 12 is arranged above the artificial wetland unit 9, and one end of the water inlet pipe is connected with a sewage source through a water pump 15; the water outlet pipe 14 is connected with the bottom of the artificial wetland unit 9, and the water outlet pipe 14 is connected with a water outlet valve 17; the artificial wetland unit 9 is provided with a wetland plant layer 13, a biochar packing layer 10 and a gravel bearing layer 11 in sequence from top to bottom; the aeration pipe 18 is arranged between the biological carbon packing layer 10 and the gravel bearing layer 11; the wall of the aeration pipe 18 is provided with micro aeration holes, which can ensure that the aeration equipment provides oxygen for the artificial wetland when being opened so as to create an aerobic environment. The aeration equipment 6 is the existing equipment and is powered by solar energy to carry out intermittent aeration. The intermittent aeration is controlled by an adjustable on-off switch. Setting the area of a solar panel 1 according to actual needs; the solar power generation board, the capacity of the storage battery 3, the power of the aeration equipment 6 and the number of the aeration pipes 18 are adapted to the size of the artificial wetland unit 9, the sewage quality and the treatment requirement.
Furthermore, the rear section of the aeration pipe 18 of the utility model arranged in the artificial wetland unit 9 is composed of a horizontal section, a vertical section and a row section in sequence, wherein the horizontal section and the front section of the aeration pipe 18 are integrated; the vertical section extends vertically downwards to the upper part of a gravel supporting layer 11 from a biological carbon packing layer 10 of the artificial wetland unit 9; the row section is set into a plurality of sections, and each section is arranged in parallel.
Further, solar cell panel 1 lower part be provided with portable support 2. The movable support 2 can adjust the orientation of the solar cell panel 1 according to the direct sunlight angle so as to absorb larger solar energy.
Further, constructed wetland unit 9 in the plant layer 13 contain the plant for two or two combination of loosestrife, reed, its survival ability of surviving the winter is stronger and have better removal effect to the pollutant in the sewage, planting density is 5 trunk/square meter.
Furthermore, the charcoal packing layer 10 in the constructed wetland unit 9 is formed by using any two or three of three waste plants of coconut shell, reed straw and broken branch as raw materials, and specifically, formed by pyrolyzing any two or three of the three waste plants of coconut shell, reed straw and broken branch as raw materials at 300-500 ℃ under the anoxic condition for 2-4 hours to prepare the obtained product. Plants grow well on the biochar filler layer 10.
Furthermore, the diameter of the biochar in the biochar packing layer 10 in the constructed wetland unit 9 is 3-10 mm.
Furthermore, the diameter of the gravel particle of the gravel bearing layer 11 in the artificial wetland unit 9 is 8-15mm, and the thickness is 5-7 mm.
Further, solar cell panel 1 be flexible thin-film solar cell panel 1. The support 2 is provided with a supporting surface facing the sun, and the flexible thin-film solar cell panel 1 is attached to the supporting surface. The storage battery stores electric energy and can supply power to the system at night and in cloudy days. The flexible solar cell panel 1 has the characteristics of flexibility, ultrathin property, adhesiveness, weak light and the like, the supporting surface of the bracket 22 can be shaped into planes, curved surfaces and the like with different shapes, and the flexible solar cell panel 1 can be fixed on the supporting surface of the bracket 2 in a back adhesive adhering mode. The inverter 4 and the generator 5 are connected by solar power generation, and the power supply voltage is turned to 220V for the operation of the aeration equipment 6. When sunlight exists, the solar panel 1 can continuously convert solar energy into electric energy to be stored in the storage battery. The storage battery supplies power to the aeration equipment intermittently so as to achieve the effect of intermittent aeration. The aeration equipment 6 is controlled by a switch capable of adjusting the on-off time, and the aeration and aeration stop time is adjusted according to the sewage property and the treatment requirement, for example, the aeration time is set to be 2 hours, and the aeration stop time is set to be 4 hours. Air enters the wetland through the aeration pipe 18 to supply the aerobic decomposition of microorganisms for removing organic matters and converting ammonia nitrogen. The intermittent aeration mode can create alternate aerobic-anoxic environments, is favorable for saving electric energy and reduces the scale of the solar panel and the storage battery. Meanwhile, the biochar filler has stronger adsorption and removal capacity on phosphorus.
Further, the utility model discloses used little aeration pipe aperture is 0.03 ~ 0.06mm, and micropore arrangement density is 700 ~ 1200/meter. The aeration pipe is divided into a horizontal section, a vertical section and a row-dividing section which are arranged in three sections, and the micro aeration pipe is arranged on the row-dividing section.
Further, the utility model discloses the cover is equipped with PVC pipe 16 on the branch row section of aeration pipe 18, has seted up the trompil on every PVC pipe 16. The aeration pipe 18 is placed in the PVC pipe 16 with an opening of 1mm to resist the pressure of the filler and prevent the aeration pipe 18 from being clogged.
The utility model discloses an operating method, including following step: the sewage is lifted by a water pump 15 from a water inlet pipe 12 and enters the artificial wetland unit 9 at one time, and pollutants in the water are removed by the actions of microbial oxidative decomposition, nitrification and denitrification, filler phosphorus interception and the like in the biological carbon filler layer 10. Controlling the aeration time and the aeration stopping time according to the water quality characteristics of the sewage, if the concentration of organic matters and ammonia nitrogen in the sewage is higher, prolonging the aeration time, and vice versa; and the sewage stays in the wetland for a period of time and is purified and then discharged from a water outlet pipe 14 arranged at the bottom of the artificial wetland unit 9, and sampling monitoring is carried out.
The utility model has the characteristics of it is following: the system provides intermittent aeration for the wetland by taking solar energy as an energy source, creates an aerobic-anoxic environmental condition which is favorable for removing pollutants, and controls the aeration and aeration stop time ratio according to the concentration characteristics of the pollutants in the sewage and the proportion of oxygen consumption substances so as to improve the sewage purification efficiency. Meanwhile, the novel green material, namely the biochar, is used as the filler of the wetland, so that the sewage treatment effect can be improved, the saturated biochar can be used for soil property improvement and pollution remediation of peripheral farmlands and the like, a plurality of limitations in the application of the artificial wetland sewage treatment system are overcome and relieved, the ecological environment attribute of the artificial wetland is improved, and the technology has a wide application prospect.
The above description is only for the specific embodiment of the present invention, and the common general knowledge of the known specific structure and characteristics of the scheme is not described too much here. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. A solar intermittent aeration type biochar-based sewage purification constructed wetland system is characterized by comprising a solar cell panel, a storage battery, an inverter, a generator, aeration equipment, an aeration pipe, a gas flowmeter, a gate valve, a water pump, an artificial wetland unit, a water inlet pipe and a water outlet pipe; the solar cell panel is connected with the aeration pipe sequentially through a storage battery, an inverter, a generator, aeration equipment, a gas flowmeter and a gate valve; the inverter is connected with the generator; the aeration pipe is horizontally inserted in the artificial wetland unit; the water inlet pipe is arranged above the artificial wetland unit, and one end of the water inlet pipe is connected with a sewage source through a water pump; the water outlet pipe is connected with the bottom of the artificial wetland unit; the artificial wetland unit is sequentially provided with a wetland plant layer, a biochar packing layer and a gravel bearing layer from top to bottom; the aeration pipe is arranged between the biological carbon packing layer and the gravel bearing layer; the wall of the aeration pipe is provided with micro aeration holes; the water outlet pipe is connected with a water outlet valve.
2. The solar intermittent aeration type biochar-based sewage purification constructed wetland system as claimed in claim 1, wherein the part of the rear section of the aeration pipe, which is arranged in the constructed wetland unit, sequentially consists of a horizontal section, a vertical section and a row-dividing section, wherein the horizontal section and the front section of the aeration pipe are integrated; the vertical section extends vertically downwards to the upper part of the gravel supporting layer from a biological carbon packing layer of the artificial wetland unit; the row section is set into a plurality of sections, and each section is arranged in parallel.
3. The solar intermittent aeration type biochar-based sewage purification artificial wetland system as claimed in claim 1, wherein a movable support is arranged at the lower part of the solar cell panel.
4. The solar intermittent aeration type biochar-based sewage purification artificial wetland system as claimed in claim 1, wherein the wet plant layer in the artificial wetland unit comprises plants which are selected from loosestrife and reed or a combination of the loosestrife and the reed.
5. The solar intermittent aeration type biochar-based sewage purification constructed wetland system as claimed in claim 1, wherein the size of the object diameter of the biochar in the biochar filler layer in the constructed wetland unit is 3-10 mm.
6. The solar intermittent aeration type biochar-based sewage purification constructed wetland system as claimed in claim 1, wherein the gravel particle size of the gravel bearing layer in the constructed wetland unit is 8-15mm, and the thickness is 5-7 mm.
7. The solar intermittent aeration type biochar-based sewage purification constructed wetland system as claimed in claim 1, wherein the solar cell panel is a flexible thin film solar cell panel.
8. The solar intermittent aeration type biochar-based sewage purification artificial wetland system as claimed in claim 1, wherein the aperture of the used micro aeration pipe is 0.03 ~ 0.06mm, and the density of the arranged micropores is 700 ~ 1200/m.
9. The solar intermittent aeration type biochar-based sewage purification artificial wetland system as claimed in claim 2, wherein PVC pipes are sleeved on the row sections of the aeration pipes, and each PVC pipe is provided with an opening; the aperture of the open pore is 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920234344.7U CN209797588U (en) | 2019-02-25 | 2019-02-25 | Solar intermittent aeration type biochar-based sewage purification artificial wetland system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920234344.7U CN209797588U (en) | 2019-02-25 | 2019-02-25 | Solar intermittent aeration type biochar-based sewage purification artificial wetland system |
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| CN209797588U true CN209797588U (en) | 2019-12-17 |
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| CN201920234344.7U Expired - Fee Related CN209797588U (en) | 2019-02-25 | 2019-02-25 | Solar intermittent aeration type biochar-based sewage purification artificial wetland system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113697957A (en) * | 2021-09-01 | 2021-11-26 | 中国科学院亚热带农业生态研究所 | Solar micro-power pig farm biogas slurry biological matrix treatment method and system |
-
2019
- 2019-02-25 CN CN201920234344.7U patent/CN209797588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113697957A (en) * | 2021-09-01 | 2021-11-26 | 中国科学院亚热带农业生态研究所 | Solar micro-power pig farm biogas slurry biological matrix treatment method and system |
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Granted publication date: 20191217 Termination date: 20210225 |