CN212450848U - Flexible Ecological Treatment Package - Google Patents
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- CN212450848U CN212450848U CN202020916314.7U CN202020916314U CN212450848U CN 212450848 U CN212450848 U CN 212450848U CN 202020916314 U CN202020916314 U CN 202020916314U CN 212450848 U CN212450848 U CN 212450848U
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Abstract
The invention relates to the field of surface runoff sewage treatment in cities and towns and rural areas, in particular to a flexible ecological treatment bag. The flexible ecological treatment bag comprises a flexible isolation wall, wherein the flexible isolation wall is an isolation wall with selective permeability, two ends of the flexible isolation wall are respectively and flexibly connected to two sides of a surface runoff straight discharge port, a heavy object is arranged at the bottom of the flexible isolation wall, the top of the flexible isolation wall is connected with a plant enclosure, and purified plants are arranged in an enclosure space; the water area is characterized by also comprising a plurality of attachment belts, wherein the vertical length of the attachment belts is not less than two thirds of the depth of the water area. The invention constructs an organic, orderly and interesting three-dimensional space purification system according to local conditions based on the ecological principle, the system openness principle and the biological diversity principle. The ecological treatment bag and the connection mode thereof disclosed by the invention are flexible, and can be displaced properly in a certain water area space along with the water level change, so that the ecological treatment bag can meet the seasonal water level change requirement of river branches and creeks.
Description
Technical Field
The invention relates to the field of urban and rural sewage treatment, in particular to the field of prevention and control of pollutants in a water outlet through which surface runoff is directly converged into a river channel, and more particularly relates to a flexible ecological treatment bag.
Background
After the rainwater falls to the ground, a part of the rainwater is evaporated to form water vapor and returns to the atmosphere, a part of the rainwater gradually seeps from the soil to form underground water, the rest of the rainwater forms overflow along a slope and flows into a river branch creek through a gully and a stream, and the ground water flow formed by rainfall is called surface runoff.
In towns and rural areas, surface runoff caused by rainwater is one of main sources of river branch creeks pollution. When rainwater flows through the waterproof surfaces of asphalt, cement, concrete and the like, nitrogen, phosphorus, heavy metals, garbage and other pollutants attached to the hardened ground can be gathered into runoff; when flowing through farmlands, lawns and other lands, pollutants such as chemical fertilizers, pesticides, fine sand and the like can be gathered into runoff; the washing sewage of partial living area residents can also be converged into the runoff. The surface runoff carrying a large amount of compound pollutants is generally collected at a low-lying position on the ground and is collected into river branches and creeks in cities or rural areas through a straight discharge port on a river bank.
Intercepting and strengthening purification of pollutants in surface runoff of rivers and creeks from a straight discharge port are research hot problems in the field at present.
However, there are few reports on the planned designs such as interception and enhanced purification of surface runoff at the direct drainage port of the rainwater runoff on the river bank. The invention discloses a flexible ecological treatment bag, which is a technical scheme for intercepting and strengthening purification of local water areas at a riparian surface runoff direct drainage port. This technical scheme can directly set up the local waters near the direct discharge opening of runoff, does not occupy land area, and the pollutant in the river runoff is gone into in direct interception and purification, can effectively reduce into the river pollution load, alleviates the river course eutrophication problem to a certain extent. Meanwhile, for concentrated living areas in towns or rural areas, no redundant land is arranged near the river channel, and the method can be used for building large-scale surface runoff collecting and treating facilities.
Disclosure of Invention
The invention aims to solve the technical problem that an open treatment facility is constructed according to local conditions aiming at local water areas at surface runoff direct drainage openings of urban and rural river channels, river pollutants are directly intercepted, the concentration of the pollutants in the runoff is reduced, and the pollution load of the river is reduced, so that the requirement of improving the water quality of the river channel is met.
In order to solve the technical problems, the invention firstly discloses a flexible ecological treatment bag which comprises a flexible isolation wall, wherein the flexible isolation wall is an isolation wall with selective permeability so as to effectively separate a water area near a surface runoff direct drainage port from other water areas of a river channel, the left end and the right end of the flexible isolation wall are respectively connected to two sides of the surface runoff direct drainage port in a flexible connection mode, and a weight is arranged at the bottom of the flexible isolation wall; the top of the flexible isolation wall is connected with a plant enclosure, the plant enclosure floats on the water surface and forms an enclosure space with a certain height, and purification plants are arranged in the enclosure space; the device also comprises a plurality of attachment belts, wherein the attachment belts are vertically suspended in a water area space surrounded by the flexible partition walls; the vertical length of the attachment strip is not less than two-thirds of the depth of the water area. That is to say, in the area that the area was enclosed at the direct discharge opening department's of runoff flexible divider wall was pended in to the attached band, its top was close to the surface of water, is located the plant roots below, from top to bottom runs through two-thirds of the depth of water at least.
Flexible ecological packet mainly comprises flexible structure subassemblies such as flexible division wall, plant enclosure, attachs area, compares in other processing system who uses the rigidity material to support, and its main advantage lies in the scalable deformation of flexible material, and its connected mode is also flexible and remains the redundancy for but this ecological packet automatically regulated position is in order to adapt to the river course water level change that the rainfall difference in different seasons arouses. It should be noted that the flexible connection mode of the left and right sides of the flexible isolation wall is that the flexible isolation wall is connected with the positioning piles by ropes, and certain redundancy is reserved in the connection of the ropes, so that the flexible isolation wall can be fixed in the water area space near the straight discharge port, and the flexible isolation wall has the possibility of generating a small amount of displacement in the water area space.
The selective permeability of the flexible isolation wall means that substances in different forms can be physically isolated according to requirements, so that permeable liquid substances pass through the flexible isolation wall and enter a river water body, and specific non-selected solid substances are blocked in a water area space surrounded by the flexible isolation wall.
The flexible partition wall is made of a flexible material, such as a flexible curtain, a flexible film, or other flexible materials.
And in order to improve the relative stability of the flexible isolation wall, a weight is arranged at the bottom of the flexible isolation wall, preferably, the bottom edge of the flexible isolation wall is turned upwards to form a turned edge, and an object with weight, such as an iron chain or a semicircular steel bar, penetrates through the turned edge to prevent the flexible isolation wall from floating along with the flow of water.
The floating of the plant enclosure on the water surface is realized by the existing floating components. Such as by foam flotation blocks, or by a rubber structure that is internally inflated, or by a rubber structure that is internally provided with a buoyant material, etc.
Further preferably, the attachment belt is composed of a main rope and an attachment thorn fixed on the main rope, and a hanging object is arranged at the bottom end of the main rope. The hanging object has certain weight, so that the main rope can be ensured to be vertically hung, and the main rope is prevented from floating in water.
In another preferred technical scheme, still including attaching the umbrella, it is umbelliform to attach the umbrella, comprises a plurality of ribs, the main rope passes a plurality of centers of attaching the umbrella to with a plurality of attached umbrellas level fix on a main rope in proper order, it fixes on the rib to attach the thorn.
More preferably, the attachment barbs are vertically fixed. When the main rope is fixed on the main rope, the attaching thorn is vertically fixed on the main rope; when the umbrella is fixed on the attached umbrella, the attaching thorn is vertically fixed on the umbrella frame of the attached umbrella.
As a preferred technical scheme, the device also comprises a plurality of horizontal positioning belts, wherein the attachment belts are vertically fixed on the horizontal positioning belts, and the horizontal positioning belts are distributed in a water area enclosed by the flexible isolation wall; the optimized horizontal positioning belts are distributed in parallel at equal intervals in the water area; more preferably, the flexible partition wall further comprises a fixing rope with a horizontal positioning belt, two ends of the fixing rope are respectively connected with two sides of the top of the flexible partition wall, one end of the horizontal positioning belt is connected to the flexible partition wall, and the other end of the horizontal positioning belt is connected to the fixing rope.
The horizontal positioning belt has the main function of reasonably arranging the attachment belt so that the attachment belt is uniformly and orderly distributed in a water area space surrounded by the flexible partition walls. The different distribution modes of the horizontal positioning belt mainly affect the setting amount of the adhesive belt, the contact area of the adhesive belt and the runoff of the straight discharge port and the like. Through the research and the comparison of the inventor, a fixing rope is preferably arranged, the fixing rope is connected to the top of the flexible isolation wall, then the horizontal positioning belts are connected with the flexible isolation wall at one end in an equidistant parallel mode, and the fixing rope is connected to the other end of the horizontal positioning belts. Under this kind of setting mode, the setting volume of adhering to the area is more, and is great with the area of contact of straight row mouth runoff, and is better to the purifying effect of this regional internal diameter flow pollutant.
In a preferred technical scheme, still including the plant floats the bed, be provided with a plurality of plant planting holes on the plant floats the bed, aquatic plant with purification ability fixes in the plant planting hole of plant floating bed. The water-floating property of different purified plants is different. For floating plants with better floating property, the floating plants can be directly planted in the plant enclosure and can grow on the water surface more orderly through the enclosure net. For emergent aquatic plants without water floating property, the plants need to be suspended on the water surface better by virtue of a plant floating bed.
Further preferably, a collecting basket is further arranged below the plant planting holes of the plant floating bed. The collecting basket can receive the root system fallen objects of the purifying plants in the collecting basket, and the secondary pollution to the river water body caused by the rotting and decomposition of the fallen objects after the fallen objects are scattered in water is avoided.
In a preferred technical scheme, the device also comprises a settling tank, wherein the settling tank is arranged at the bottom of a water area space surrounded by the flexible isolation wall and can intercept and collect fine sand, soil and other solid particles which are blocked by the flexible isolation wall and settle down. Solid particles intercepted in the settling tank are regularly cleaned, and the removal effect of the flexible ecological treatment bag on the particles in the surface runoff can be effectively improved.
Preferably, in the invention, the aquatic plants with purification capacity can be matched with warm-season plants and cold-season plants according to season change, so that the annual effective purification effect is achieved, and the perennial green landscape effect is formed.
On the basis of the technical scheme disclosed above, the invention further discloses an ecological purification method using the flexible ecological treatment bag, which comprises the following steps:
step 1: preparing each component respectively, and carrying out adhesion pretreatment on the adhesion belt;
step 2: assembling all components to form a flexible ecological treatment bag according to the structure of the flexible ecological treatment bag at a surface runoff straight discharge port of a river branch creek;
and step 3: collecting and replacing the adhesive tape periodically;
the attachment band is pretreated before use, wherein the pretreatment is to immerse the attachment band in a microbial liquid naturally growing in a water area containing water to be treated for balance.
More preferably, the bacterial liquid is formed by treating a used attachment zone or by in-situ sludge treatment in the water area.
The method for treating the used attachment belt to form the bacterial liquid is to scrape off the bacterial flora on the used attachment belt, soak the bacterial flora in the raw water of the river channel and stir the bacterial flora to form the bacterial liquid. The method for forming the bacterial liquid by using the bottom mud is to soak the collected in-situ bottom mud in the raw water of the river channel and stir to form the bacterial liquid. Because the types of microorganisms in water are rich, if a manual preparation method is adopted, the colony distribution in the natural water body is difficult to simulate, and the original colony structure of the natural water body can be damaged by manually adding a microbial agent. In order to avoid the situation, the flora in the attachment zone or the bottom mud is collected in the raw water of the river channel, and the attachment zone is immersed in the raw water of the river channel for pretreatment, so that the purification efficiency of the attachment zone in practical application can be improved, the negative influence of artificially throwing exogenous microbial inoculum on the bacterial colony of the natural water body is avoided, and the bacterial colony of the water body is kept balanced and stable to the greatest extent.
As a preferred technical scheme, the method also comprises the steps of cleaning the collecting basket under the plant floating bed at regular intervals; so as to remove the plant root fallen objects accumulated in the collecting basket in time and avoid the rotting and decomposition of the fallen objects from affecting the water quality.
As another preferred, still include regularly to the subsider of flexible ecological treatment package bottom clear up, the accumulation has by flexible division wall to block and subside solid particulate matters such as fine sand, earth in the subsider, through regularly clearing up the solid particulate matter of holding back in the subsider, can effectively improve the effect of getting rid of the particulate matter of flexible ecological treatment package.
By adopting the technical scheme disclosed by the invention, the water area near the surface runoff collection straight discharge port can be effectively purified, and the method contributes to the construction of healthy and ecological river branches and creeks. The invention constructs an organic, orderly and interesting three-dimensional space purification system according to local conditions based on the ecological principle, the system openness principle and the biological diversity principle. On the basis of ensuring surface runoff interception and intensified purification, a perennial green landscape effect can be formed, and the ecological environment of rivers and creeks is beautified. And because the ecological treatment bag and the connection mode thereof disclosed by the invention are flexible, the ecological treatment bag can be displaced in a certain water area space along with the change of the water level, and can adapt to the requirement of seasonal change of the river water level.
Drawings
FIG. 1 is a schematic view from above of a flexible ecological treatment bag;
FIG. 2 is a schematic view in longitudinal section of a flexible ecological treatment bag;
FIG. 3 is a schematic view of another form of an attachment strip;
fig. 4 is a schematic view of a plant floating bed.
Detailed Description
In order that the invention may be better understood, we now provide further explanation of the invention with reference to specific examples.
Example 1
The flexible ecological treatment bag as shown in fig. 1 and 2 comprises a flexible isolation wall 1, wherein the flexible isolation wall 1 is a cord fabric with selective permeability, and the left end and the right end of the flexible isolation wall 1 are respectively connected to two sides of a surface flow straight discharge opening 8, as shown in fig. 1. The water area near the surface runoff direct discharge port is separated from other water areas of the river channel through a flexible isolation wall; the top of the flexible isolation wall is connected with a plant enclosure 2, the plant enclosure 2 floats on the water surface and forms an enclosure space with a certain height, and aquatic plants 3 with purification capacity are arranged in the enclosure space; the device also comprises a plurality of attachment belts 4, wherein the attachment belts 4 are vertically suspended in a water area space surrounded by the flexible partition walls; the vertical length of the attachment strip is not less than two-thirds of the depth of the water area. That is to say, the attachment belt hangs in the water space surrounded by the flexible separation wall at the runoff direct drainage port, and the top end of the attachment belt penetrates through at least two thirds of the water depth from top to bottom at the water surface. As shown in fig. 2, the attachment strips 4 extend through two-thirds of the depth of the body of water. Specifically, it can be seen that the attachment strap shown in fig. 2 is composed of a main string 41 and an attachment thorn 42 fixed on the main string, and a hanging object 43 is provided at the bottom end of the main string 41. The hanging object has certain weight, so that the main rope can be ensured to be vertically hung, and the main rope is prevented from floating in water.
It is particularly noted that, referring to the schematic representation in fig. 1, the flexible partition wall 1 is connected at both ends to shore studs 9 by means of ropes, and the ropes 10 are not tensioned in the rest state, so that when the water level is raised or lowered, a redundant amount of ropes 10 ensures that the flexible partition wall 1 floats up and down with the water level.
Meanwhile, a turned edge 11 is provided at the bottom of the flexible partition wall 1, and as shown in fig. 2, an iron chain 12 penetrates through the turned edge 11.
In addition, as can be seen from fig. 3, the umbrella also comprises an attached umbrella 44, wherein the attached umbrella 44 is in an umbrella shape and is composed of a plurality of umbrella ribs 441, the main rope 41 penetrates through the centers of the attached umbrellas 44, so that the attached umbrellas are horizontally fixed on the main rope 41, and the attached spines 42 are fixed on the umbrella ribs.
As shown in fig. 2 and 3, the attachment barbs are preferably vertically fixed. When the main rope is fixed on the main rope, the attaching thorn is vertically fixed on the main rope; when the umbrella is fixed on the attached umbrella, the attaching thorn is vertically fixed on the umbrella frame of the attached umbrella. However, the attachment barbs may be fixed at other angles, or at non-uniform angles.
In this embodiment, it is further preferable that the horizontal positioning belt 5 is further included, the attachment belt 4 is vertically connected to the horizontal positioning belt 5, the fixing rope 13 is further included, two ends of the fixing rope 13 are respectively connected to two sides of the top of the flexible partition wall, one end of the horizontal positioning belt 5 is connected to the flexible partition wall 1, the other end of the horizontal positioning belt is connected to the fixing rope 13, and a plurality of horizontal positioning belts are distributed in parallel in the water area, as shown in fig. 1.
Utilize the horizontal location area, be convenient for set up the adhesion zone stably in the waters that antifouling curtain encloses. And due to the traction effect of the horizontal positioning belt, the space distribution of the adhesion belt is more uniform and ordered, and the interception and the reinforced purification of pollutants in surface runoff are facilitated.
Further preferably, the plant floating bed device further comprises a plant floating bed 6, a plurality of plant planting holes 61 are formed in the plant floating bed, and the purification plants 3 are planted in the plant planting holes 61 of the plant floating bed. The water-floating property of different purified plants is different. For floating plants with better floating property, the floating plants can be directly planted on the water surface and can also grow on the water surface more orderly through the purse net. For emergent aquatic plants without water floating property, the plants need to be suspended on the water surface better by virtue of the plant floating bed.
Further preferably, in the present embodiment, a collecting basket 62 is further disposed below the plant planting holes 61 of the plant floating bed, as shown in fig. 2. The collecting basket 62 can receive the roots of the purified plants in the collecting basket, so as to prevent the roots from rotting and decomposing in water and causing secondary pollution to the water body.
In this embodiment it is further preferred to include a settler 7, see in particular fig. 2, which is arranged at the bottom of the space of water enclosed by the flexible partition walls. It can be seen that the settling tank is positioned at the bottom of a water area space enclosed by the flexible separation wall, the width of the settling tank can approximately cover the area between the bottom of the flexible separation wall and the bottom of the river bank, and solid particles such as fine sand, soil and the like contained in surface runoff water are limited in the area where the flexible ecological bag is positioned under the blocking action of the flexible separation wall, and gradually settle and accumulate in the settling tank under the action of gravity; through the regular cleaning to this subsider, can realize the effective getting rid of the solid particulate matter in the surface runoff.
The purifying plant has evergreen plant effect, and can be matched with warm-season plants and cold-season plants according to needs, so that long-term effective purifying effect is achieved.
For example, in this embodiment, the ornamental aquatic plants are matched according to seasons, the warm plants Iris acorus, Luffa cylindrica, canna indica and Reli flowers can be matched in the warm season, and the cold-resistant plants cress, Aleurites fordii and Iris sibirica can be matched in the cold season.
Example 2
The method for treating water by using the flexible ecological treatment bag disclosed by the invention is further described by combining the embodiment, and comprises the following steps:
step 1: preparing each component respectively, and carrying out adhesion pretreatment on the adhesion belt;
step 2: assembling all components to form a flexible ecological treatment bag according to the structure of the flexible ecological treatment bag at a surface runoff straight discharge port of a river branch creek;
and step 3: collecting and replacing the adhesive tape periodically;
the attachment belt is required to be pretreated before use, and the pretreatment means that the attachment belt is immersed in bacterial liquid containing microorganisms in a water area to be treated to realize balance.
Preferably, the bacterial liquid is formed by treating a used attachment zone or by in-situ sediment treatment in the water area.
The method for treating the used attachment belt to form the bacterial liquid is to scrape off the bacterial flora on the used attachment belt, soak the bacterial flora in the raw river water and stir the bacterial flora to form the bacterial liquid. The method for forming the bacterial liquid by using the bottom mud is to soak the collected in-situ bottom mud in the raw water of the river channel and stir to form the bacterial liquid.
Specifically, in the embodiment, a section of river channel in a residential area of a coastal lake city is selected, wherein the length of the river channel is 270.0m, the width of the river channel is 16.0m, and the depth of a river channel water body is 2.5-3.0 m. The total catchment area on the two sides of the river channel is about 7.0 ten thousand square meters, wherein the greenbelts and the paths of the residential area account for about 42.0 percent of the total area, the roofs account for about 13.5 percent, the parking lots account for about 8.9 percent, the removal areas account for about 33.0 percent, and the roads of the main road account for about 2.6 percent. At present, the river channel has the phenomena that surface runoff is directly connected into the river, a small amount of resident domestic sewage is directly discharged, sewage pipes leak and overflow and the like, a river bank zone is a hard revetment, the ecological interception function of the land source pollution is basically lost, in addition, the water body of the river channel has poor liquidity and weak self-purification capacity, the water body is in a black and odorous state occasionally, and the life quality of surrounding residents is reduced to a certain degree.
Through sampling detection, the rainfall runoff pollutant concentrations of different underlying surfaces in the area are shown in table 1:
table 1: rainfall runoff pollutant concentration (mg/L) of different underlying surfaces
We set the flexible ecological treatment bag in example 1 at the surface runoff direct drainage port of the river. After the ecological treatment package stably runs for 2 months, sampling is carried out for 5 times. Each sampling is carried out when runoff can be formed by heavy and medium rain, and 3 parts of runoff at a straight discharge port are collected within 15 minutes in the early stage of rainfall; collecting 3 parts of water sample outside the flexible ecological treatment bag after rainfall begins for 2 hours, and monitoring main pollutant indexes including NH4 +N, TN, TP, COD and SS, calculating the removal efficiency of the pollutants, as shown in table 2:
table 2: removal effect of main pollutants in water outside flexible ecological treatment bag
And for the cleaning frequency of the collecting basket and the settling tank, a reasonable regular cleaning plan is made according to the pollution degree of the surface runoff water body, the plant type and the seasonal change. Generally, cleaning is performed every 2-3 months to meet the conventional purification requirements.
But to the more circumstances of the root system junk of plant, or contain solid particulate matter in the runoff water, can suitably increase the clearance frequency to avoid the plant root system junk and the negative effect of solid particulate matter decomposition in the runoff to quality of water, improve the purifying effect of flexible ecological treatment package.
What has been described above is a specific embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (10)
1. Flexible ecological treatment package, its characterized in that: the flexible ecological treatment bag comprises a flexible isolation wall, the flexible isolation wall is an isolation wall with selective permeability, the left end and the right end of the flexible isolation wall are respectively connected to two sides of the surface runoff collecting straight discharge port in a flexible connection mode, and a heavy object is arranged at the bottom of the flexible isolation wall; the top of the flexible isolation wall is connected with a plant enclosure, the plant enclosure floats on the water surface, and aquatic plants with purification capacity are arranged in the enclosure space; the device also comprises a plurality of attachment belts, wherein the attachment belts are vertically suspended in a water area space surrounded by the flexible partition walls; the vertical length of the attachment strip is not less than two-thirds of the depth of the water area.
2. The flexible ecological treatment package of claim 1, wherein: the attachment belt is composed of a main rope and an attachment thorn fixed on the main rope, and a hanging object is arranged at the bottom end of the main rope.
3. The flexible ecological treatment package of claim 2, wherein: still including attaching the umbrella, it is umbelliform to attach the umbrella, comprises a plurality of ribs, the main rope runs through the center of a plurality of attached umbrellas, it fixes on the rib to attach the thorn.
4. The flexible ecological treatment package according to claim 2 or 3, characterized in that: the attachment thorn is fixed vertically.
5. The flexible ecological treatment package of claim 1, wherein: the flexible isolation wall is characterized by further comprising a plurality of horizontal positioning belts, wherein the attachment belts are vertically connected to the horizontal positioning belts, and the horizontal positioning belts are distributed in a water area surrounded by the flexible isolation wall.
6. The flexible ecological treatment package of claim 5, wherein: the horizontal positioning belts are distributed in the water area at equal intervals in parallel.
7. The flexible ecological treatment package according to claim 5 or 6, characterized in that: the flexible isolation wall is characterized by further comprising a fixing rope with a horizontal positioning belt, two ends of the fixing rope are fixed to two sides of the top of the flexible isolation wall respectively, one end of the horizontal positioning belt is connected to the flexible isolation wall, and the other end of the horizontal positioning belt is connected to the fixing rope.
8. The flexible ecological treatment package of claim 1, wherein: still including the plant bed of floating, the plant floats and is provided with a plurality of plant planting holes on the bed, aquatic plant that has purification ability is planted in the plant planting hole of floating the bed.
9. The flexible ecological treatment package of claim 8, wherein: and a collecting basket is also arranged below the plant planting holes of the plant floating bed.
10. The flexible ecological treatment package of claim 1, wherein: the device also comprises a settling tank, wherein the settling tank is arranged at the bottom of a water area space surrounded by the flexible isolation wall.
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| CN111484140A (en) * | 2020-05-27 | 2020-08-04 | 江苏省农业科学院 | Flexible ecological treatment bag and ecological purification method using the same |
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