CN212559641U - Kinetic energy-free intermittent vertical flow type wetland purification system - Google Patents

Abstract

The utility model relates to a non-kinetic energy intermittent vertical flow wetland purification system, which comprises a first water transfer tank for storing a purification object and a first stone filter tank for purifying the purification object for a section, and is characterized in that the first water transfer tank intermittently supplies water to the first stone filter tank; the horizontal height of the first water adjusting tank is higher than that of the first stone filter; and a first water diversion tank which can uniformly distribute the purification objects to the first stone filter is arranged between the first water diversion tank and the first stone filter. Through this kind of intermittent type nature is discharged, can even quality of water, ensures the abundant purification of the purification object who discharges the last time, prevents the pipeline jam to discharge through the natural gravity of purification object, reduce wetland operation cost, and each unit area of make full use of purifier provides purification efficiency.

Description

Kinetic energy-free intermittent vertical flow type wetland purification system

Technical Field

The utility model relates to a wetland clean system especially relates to vertical flow formula wetland clean system.

Background

The Constructed Wetland (Constructed Wetland) is a natural ecosystem which is artificially designed and Constructed by simulating a natural Wetland, has the characteristics of controllability and engineering, and performs water purification treatment by the cooperation of substrates, plants and microorganisms through physical, chemical and biological effects. In recent years, China has made many attempts to purify water by using the artificial wetland technology and has obtained good effects, and in recent years, the country proposes a plurality of development strategies and policy and regulations for ecological cities, sponge cities and sewage treatment, and the artificial wetland water purification technology is widely popularized.

The conventional purification system for artificial wetland can be roughly divided into a surface flow wetland system and an underflow wetland system according to the system position.

The surface flow wetland system is characterized in that sewage flows on the surface of a wetland, and the water level is shallow and is mostly between 011 and 019 m. The system is closest to natural wetland, and the removal of most organic pollutants in sewage is completed by means of a biological membrane growing on stems and rods of the underwater parts of plants.

The subsurface flow wetland system is also called a percolation wetland system. In subsurface flow wetland systems, sewage flows inside the wetland bed. Therefore, the biological membrane growing on the surface of the substrate, abundant root systems, surface soil, substrate interception and other effects can be fully utilized to improve the treatment effect and treatment capacity.

On the other hand, the purification type can be roughly divided into a horizontal flow wetland and a vertical flow wetland.

The horizontal flow type wetland system is characterized in that sewage flows from one end of the water inlet to one end of the water outlet sequentially through sandstone, a medium and a plant root system in the process of flowing along the horizontal direction, so as to achieve the purpose of purification. The horizontal flow wetland can be combined with a surface flow wetland system and can also be combined with a subsurface flow wetland system.

The advection type surface current wetland system has the advantages of low investment and the defects of low processing capacity, poor sanitary condition and incapability of normally operating in some regions in the north of China due to cold climate in winter. Meanwhile, the water flow is not obviously circulated alternately, and only the upper part is aerobic and the lower part is anoxic and anaerobic, so the effect is worse than that of the vertical flow.

The vertical flow type wetland system is characterized in that sewage longitudinally flows to the bottom of a bed from the surface, and the sewage sequentially passes through different medium layers in the longitudinal flow process to achieve the purpose of purification. However, in the vertical flow wetland system, when the amount of sewage is too large, the water pressure is too high to sufficiently purify the sewage and the sewage is forcibly discharged, so that a good nitrogen and phosphorus removal effect cannot be obtained.

Or, the flow of sewage is controlled by a power device to ensure sufficient purification, but the area of the artificial wetland is too large, and the operation of the power device needs very large electric power input and subsequent maintenance cost.

Meanwhile, whether a power device is added or not, the vertical flow wetland system has another high risk defect that the backflow is caused due to pipeline blockage. Once this failure occurs, its maintenance costs are very high due to its placement under the wetbed.

Therefore, the vertical flow wetland system is very high in construction cost, later-period operation cost (power control) and maintenance cost.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a passive intermittent vertical flow type wetland purification system, which can realize unpowered purification and difficult blockage.

Means for solving the problems:

the utility model discloses a vertical current formula wetland clean system of no kinetic energy intermittent type nature is including the wetland clean system in the first pond of transferring water that is used for saving the purifying object and is used for carrying out one section first stone filtering pond that purifies with the purifying object, a serial communication port, first transfer water pond intermittent type nature to first stone filtering pond supplies water.

According to the structure, the kinetic energy-free intermittent vertical flow type wetland purification system accumulates sewage and water quality in the non-discharge stage through intermittent water supply, and can ensure that the sewage discharged last time can be fully purified in the subsequent purification process due to intermittent discharge in the discharge stage, and can also share the discharge pressure to prevent pipeline blockage.

Preferably, the first water regulating tank is higher than the first stone filter in level.

According to the additional technical characteristics, the kinetic energy-free intermittent vertical flow type wetland purification system reduces the subsequent operation cost of the wetland through sewage potential energy without a power device, and can prevent the sewage discharged last time from being forcedly discharged due to overlarge water pressure caused by new sewage which is gathered without being fully purified by combining the characteristic of intermittent discharge.

Preferably, a first water dividing tank which can uniformly distribute the purification objects to the first stone filter is arranged between the first water regulator and the first stone filter.

According to the additional technical characteristics, the kinetic energy-free intermittent vertical flow type wetland purification system can fully utilize the unit area of the water purification system to purify water before the next intermittent water supply. The intermittent water supply characteristic is combined, so that the sewage quantity impact can be further dispersed, and the pipeline blockage can be prevented.

Preferably, the water outlet of the first water dividing tank is arranged at a position spaced a certain height above the first stone filter.

According to the additional technical characteristics, because the discharge of the diversion basin is positioned at a certain height above the stone filter, a certain amount of oxygen can be added in the process of flushing sewage into the stone filter in the discharge process, and the sufficient oxygen addition can be carried out on each unit area of the stone filter by combining the characteristics of the uniform division method.

Preferably, a plurality of vent holes are formed in the periphery of the first stone filter; a vent pipe communicated with the first stone filter is inserted through the vent hole.

According to the additional technical characteristics, the technical limit that the traditional stone filter cannot be built too deeply can be broken through, and oxygen is naturally increased for each unit area of the stone filter, so that the purification efficiency is improved.

Preferably, the system further comprises a water lettuce pond which is communicated with the first stone filter and is used for carrying out second-stage purification on the purification object.

According to the additional technical characteristics, the sewage can be subjected to secondary purification, denitrification reaction such as denitrification and auxiliary dephosphorization.

Preferably, an ecological pond communicated with the floating lotus pond is further provided.

According to the additional technical characteristics, the ecological treatment before the sewage is discharged can be carried out, and the purification effect can also be verified.

Preferably, a second stone filter and a second water dividing pool are further arranged between the floating lotus pool and the ecological pond.

According to the additional technical characteristics, after the sewage is subjected to primary oxidation reaction and anaerobic reaction, the sewage is subjected to primary oxidation reaction again before entering the ecological pond, so that the survival of organisms in the ecological pond is ensured as much as possible.

Preferably, a third stone filter is arranged between the floating lotus pool and the first stone filter.

According to the additional technical characteristics, the purification object is subjected to primary secondary purification, and nitrogen and nitrate are fully removed before the purification object enters the floating lotus pool, so that the anaerobic reaction of the floating lotus pool is improved.

Preferably, a third water diversion tank and a third water diversion tank are arranged between the first stone filter and the third stone filter.

According to the additional technical characteristics, the unit area of the third stone filter is fully utilized for purification, and blockage is prevented.

Drawings

Fig. 1 is a schematic plan view of a preferred embodiment of the passive intermittent vertical flow wetland decontamination system of the present invention;

fig. 2 is a longitudinal structural view of a preferred embodiment of the non-kinetic energy intermittent vertical flow wetland purification system according to the present invention;

fig. 3 is a schematic structural view of the diversion basin of the passive intermittent vertical flow wetland purification system of the present invention.

Detailed Description

Hereinafter, the passive intermittent vertical flow type wetland purification system according to the present invention will be described in detail with reference to the accompanying drawings.

Before the present invention is explained in detail in the present invention, the purification parts of the system will be explained in detail. The following description is merely an example, and the composition, specific gravity, distribution, and the like in the purification apparatus may be added, deleted, or replaced according to actual circumstances as long as the functions of each purification apparatus can be realized.

Water diversion pool

As shown in fig. 1, the water diversion pond of the present invention is used for stocking purification objects of different sources and naturally harmonizing the pollution concentration of the purification objects. As the utility model relates to a vertical flow wetland clean system of no kinetic energy intermittent type nature in FIG. 1, be provided with two diversion basins altogether, according to the purification stage of locating, be called first diversion basin 13, third diversion basin 33 respectively, the quantity that sets up in specific diversion basin can be adjusted according to actual conditions.

Specifically, the diversion basin of the present invention is used for accumulating purification objects from different sources, including but not limited to rainwater, drainage water, pond water, and the like. Because the sources of the purification objects are different and the chemical pollution concentrations in the purification objects are different, the water regulating tank has another function of regulating the pollution concentrations in the sewage from all the sources in the process of slowly storing the sewage. The purpose of this reconciliation process is: 1) preventing the sewage with overlarge concentration from remaining after the following purification process; 2) the sewage with excessive concentration is prevented from being discharged into the next purification process directly after being purified within preset time due to excessive impurities, so that pipelines are blocked in the discharge process.

On the other hand, the utility model relates to a transfer pond can also be provided with filter equipment for prefilter major possession debris, for example leaf, weeds, bold mud stone etc.. The filtering device is not particularly limited as long as it can filter large impurities, and may be, for example, a grating, a sieve, a grate, or the like.

And simultaneously, the utility model relates to a transfer pond, its drainage mode is intermittent type nature and discharges, and this intermittent type nature discharges the effect, can pass through the electrical control discharge port, also can realize through physics siphon phenomenon to do not specially limit.

With such intermittent discharge, the aim is: 1) in the intermittent discharge period, the water storage stage can regulate the pollution concentration in sewage with different sources; 2) the discharging stage is intermittently started, so that the sewage discharged from the previous time in the stone filter tank cannot be forcibly discharged due to overlarge water pressure caused by newly-entered sewage in the following purification process, and the sufficient purification time of the sewage discharged from the previous time is fully ensured; 3) effectively ensuring that oxygen in the following stone filter chamber is naturally gathered for oxidation reaction to improve the purification efficiency; 4) the discharge pressure of each opening can be reduced by combining the uniform distribution of a plurality of openings of the water diversion pool, and the blockage of the water diversion pool is prevented.

However, the above description of the diversion basin is not intended to limit the present invention to one embodiment, and those skilled in the art can make various modifications according to the needs of the present invention.

For example, the arrangement of the filtering device is not necessary, and the filtering device can be realized by manual string bag fishing and the like. On the other hand, if a further filtering effect is desired, a fine mesh or gauze having smaller filtering holes may be provided after the filtering means such as a grating, a sieve or a grate to perform further filtering.

In addition, in the latter stage of the filtering device, certain purified matter may be set selectively for preliminary purification, and timber, wood chip, active carbon, etc. may be prevented.

Diversion basin

The utility model relates to a diversion basin, it be used for with diversion basin exhaust sewage is evenly divided and is sprinkled to following stone filter tank in. By this uniform distribution, the aim is: 1) the unit area of the stone filter can be fully utilized by uniform sprinkling, and purification can be effectively carried out; 2) the purification components in each area are fully utilized, so that when the purification components are replaced, the waste of replacing the uncontaminated purification components is avoided. 3) The sewage discharge is intermittent discharge and the discharge pressure is evenly distributed in the discharge process by combining the characteristics of the water adjusting pool, so that the blockage of the discharge hole can be effectively prevented. As in figure 1 the utility model relates to a vertical current formula wetland clean system of no kinetic energy intermittent type nature is provided with three diversion basins altogether, according to the purification stage of locating, is called first diversion basin 12, second diversion basin 22, third diversion basin 32 respectively, and the quantity that sets up of specific diversion basin can be adjusted according to actual conditions.

The utility model discloses in, as long as the effect that the diversion basin can realize the even division and spill, its embodiment does not do the special limitation, according to actual emission demand, can be optionally like one in the three kinds of structures shown in fig. 3, also can be the combination and use, but the embodiment of fig. 3 does not do the utility model discloses embodiment's specific limitation.

Meanwhile, the water diversion tank is preferably arranged at a height position which is a certain distance away from the stone filter, so that when sewage is flushed into the stone filter through natural energy (potential energy), certain oxygen supplementation is carried out on the stone filter in the impacting process. The utility model discloses the even characteristics that divide the pond to spill of well dividing, owing to divide the spill area great, can improve the oxygenating efficiency of stone filtering pond upper surface.

In addition, according to actual need, other effects can also be added in the diversion basin, for example, a fine mesh can be arranged for impurity filtration, and purification components can also be arranged for purifying sewage to a certain extent.

Stone filter

The utility model relates to a stone filter, it is used for carrying out biological reaction, carries out the oxidation process particularly to sewage. The specific purification components can be selected from common oxidation components of the artificial wetland, and are not particularly limited as long as the components can be removed from the sewage to remove ammonia nitrogen, nitric acid and the like. As the utility model relates to a vertical flow wetland clean system of non-kinetic energy intermittent type nature in FIG. 1, be provided with three stone filtering ponds altogether, according to the purification stage of locating, be called first stone filtering pond 11, second stone filtering pond 21, third stone filtering pond 31 respectively, the quantity that sets up of specific stone filtering pond can be adjusted according to actual conditions.

Additionally, as the utility model discloses a preferred structure can be provided with a plurality of air vents around the stone filtering pond capital construction to run through in the air vent and insert the breather pipe to the inside of stone filtering pond, thereby can make oxygen converge naturally, the aeration oxygenating, thereby improve the area utilization in stone filtering pond. When the above-described preferred mechanism is adopted, it is preferable that generally the above-described exposed surface of the stone filter is provided so that the ventilation holes and the ventilation pipes are provided around the capital construction of the exposed surface portion.

In the above preferred configuration, it is preferable that the ventilation pipes are inserted at different depths. For example, the aeration pipe can be partially longer and inserted into the center of the bottom of the stone filter.

The above design of the preferred construction has the advantage that, in general, the oxidation efficiency of the stone filter is affected by the oxygen content inside it, so that, in conventional constructions, the stone filter cannot be made too deep, because the bottom cannot be accessed by oxygen. Therefore, if the stone filter is made too deep, sewage flows into the bottom of the stone filter after entering the stone filter, and then oxidation reaction cannot be carried out. And if the depth is too shallow, the horizontal area of the stone filter is required to be larger. However, the constructed wetland needs to be set according to the actual terrain, and the stone filter tank cannot be guaranteed to have a sufficient area to be designed in a large range under the normal condition. Therefore, it is common to provide multiple stone filters at different locations throughout the system for gradual oxidation, and the cost of such a design would increase geometrically.

And through the above-mentioned preferred structure in the stone filter of the utility model, even make the deeper stone filter, also can each unit area carry out effectual aerobic reaction in the make full use of pond.

On the other hand, the stone filter combines a plurality of technical characteristics, and the invention effect is increased geometrically. Specifically, the concentration adjustment of the water adjusting tank and the uniform dispersion of the water dividing tank can fully and uniformly exert the purification effect of each unit area of the stone filter. Through the intermittent discharge of the water adjusting tank, the excessive water pressure of the stone filter tank cannot be caused to be discharged forcibly, and the sufficient oxidation reaction time is given to the stone filter tank.

And under the a plurality of optimization embodiments mentioned in the utility model specification, the stone filter can also realize following additional effect. Specifically, the diversion basin is arranged at a position with a certain distance above the stone filter, and when sewage is uniformly discharged from the diversion basin, the sewage is uniformly oxygenated in each area of the upper surface in the process of flushing the sewage into the stone filter, so that each area of the upper surface is effectively subjected to oxidation reaction. Through setting up the air vent around the stone filtering pond capital construction to insert a plurality of air vents different depth, fully to each area of stone filtering pond bottom oxygen suppliment.

More than, right the utility model relates to a no kinetic energy intermittent type nature vertical flow formula wetland clean system's each basic part has carried out the detailed description, and simultaneously, in order to realize this wetland clean system's no kinetic energy ization, above-mentioned pond, diversion basin and the stone filtering pond of transferring water need be built in different heights in proper order to utilize the gravity natural discharge of sewage and get into next system.

To sum up, the utility model discloses an above-mentioned technical characteristic compares in traditional vertical flow wetland system, possesses following technological effect at least:

1) through the intermittent discharge of the regulating reservoir, the pollution concentration of the purification objects with different sources is regulated in the water storage process; when intermittently discharged, sufficient purification of the last discharge can be ensured, and the blockage of the pipeline is prevented;

2) by arranging the purification systems at different heights, the purified objects can be discharged through the natural gravity of the purified objects, so that the subsequent operation cost of the artificial wetland is reduced;

3) the sewage is uniformly distributed to the stone filter tank through the water distribution tank, the purification efficiency can be improved by fully utilizing each unit area of the stone filter tank, the waste of purification components in the stone filter tank is prevented, and the discharge pressure is shared to prevent blockage.

Above the utility model discloses no kinetic energy intermittent type nature vertical flow formula wetland clean system's basic embodiment can carry out the purification of certain degree to sewage through above-mentioned structure. However, according to constructed wetland's specific demand, the utility model discloses corresponding structural adjustment can also be carried out to further optimize constructed wetland system.

The optimized structure of the passive intermittent vertical flow wetland purification system of the present invention will be described in further detail below.

Pool of Floating Lotus

The utility model is called a floating lotus pool 4, also called an anoxic and anaerobic pool, which is used for denitrification (also called reduction reaction) denitrification and dephosphorization of the effluent of the front-end oxidation filter pool.

As a specific embodiment of the lotus tank 4, the lotus tank 4 may be divided into two areas, i.e., a left area which is a sewage inlet and a right area which is a purified raw sewage outlet. Wherein the lower part of the left side is a biomembrane pond which can be filled with wood chips, bamboo chips and the like. Biological stones and the like can be compacted above the biomass membrane pool. Floating plants such as water lettuce and foxtail grass can be laid on the surface layer of the wetland, so that the upper planting effect of surface-flow type, horizontal-flow type and subsurface flow type wetlands is realized.

In the conventional technology, the denitrification and dephosphorization purification process is usually realized by setting a gravel wetland biological system, and the utility model can also be replaced by adopting the above embodiment. Through the utility model discloses the embodiment in well lotus flower pond, it has replaced traditional advection or the building stones (gravel) of undercurrent wetland that play the anaerobism denitrogenation, has practiced thrift the cost under the prerequisite that does not influence technological effect.

However, the above embodiment is not intended to limit the present invention. As long as the composition can perform denitrification and dephosphorization, the traditional gravel wetland biological system can be adopted without affecting the technical effects of the utility model.

Additionally, the utility model discloses under the embodiment, sewage gets into stone filtering pond (oxidation pond) earlier, passes through the lotus flower pond (anaerobism pond) behind it, and wherein the stone filtering pond is abbreviated as "O" in the field, and the lotus flower pond is then abbreviated as "A", promptly the utility model discloses a water purification process purifies for OA, nevertheless according to sewage actual conditions, both can replace each other, forms to AO and purifies, therefore both precedence order does not do the utility model discloses a specifically prescribe a limit to.

Ecological pond

The utility model relates to an ecological pond 5, also can be called as stabilization pond 5, it is used for carrying out two stage reduction reaction to sewage. In this stage, the sewage is already subjected to the purification process, and the purification process is completed in principle, but in order to detect the purification effect, the biological fishes, shrimps and algae are usually stored in the ecological pond, so that the water quality is ensured to be stable and reach the standard for discharge, and if the purification process has problems, the sewage can be directly presented through the ecological pond. On the other hand, as a plurality of organisms are raised, the sewage can be further subjected to ecological treatment. Meanwhile, the artificial wetland can be used as a landscape effect of the artificial wetland, and furthermore, a plurality of multiplication systems can be arranged at the front section so as to achieve the culture effect.

However, the ecological pond 5 is not an essential feature of the present invention, and those skilled in the art can perform deletion, replacement, etc. according to actual sites and purification needs.

In addition, when G in fig. 1 is a roadbed horizontal position line and T in fig. 1 is a field foundation horizontal position line, the utility model relates to a non-kinetic energy intermittent vertical flow wetland purification system, the setting method can be: the first stone filter 11 is arranged below the roadbed G but has an open opening. A first water diversion tank 12, a water diversion device 14 and a first water diversion tank 13 are arranged at the position higher than the level of the roadbed G from high to low; the floating lotus pool 4 can be partially buried under the foundation T and partially positioned above the foundation T, and the opening is open; the second stone filter 21 can be connected at a position higher than the horizontal position of the lotus tank 4, and since the second stone filter 21 is higher than the lotus tank, the drainage can be pumped into and guided to the second stone filter 21 through the pump 46, filtered by the second stone filter 21, passes through the first water outlet tank 57, then flows into the ecological pond 5, and finally is discharged through the second water outlet tank 58.

In a preferred embodiment, a third water diversion tank 33 and a third water diversion tank 32 are arranged between the first stone filter 11 and the floating lotus tank 4 in sequence from high to low, so that the drained water is further purified before entering the floating lotus tank 4.

Although the invention of the present invention has been described in detail with reference to the drawings, the following description of the embodiments is only an example of the present invention, and the components, distribution, positions, and the like of the purification devices in the purification system can be appropriately added, deleted, and replaced according to actual conditions.

Reference numerals

11 a first stone filter;

12 a first water dividing pool;

13 a first diversion basin;

14 a water regulator;

21 a second stone filter;

22 a second diversion basin;

31 a third stone filter;

32 a third water dividing pool;

33 a third water mixing tank;

4, floating lotus pool;

46 pump;

5, an ecological pond;

57 a first water outlet pool;

58 second effluent pool.

Claims (10)

1. A passive intermittent vertical flow wetland purification system comprises a first water adjusting tank for storing a purification object and a first stone filter tank for purifying the purification object in a section, and is characterized in that,

and the first water adjusting tank intermittently supplies water to the first stone filter.

2. The unpowered intermittent vertical flow wetland purification system of claim 1,

the horizontal height of the first water adjusting tank is higher than that of the first stone filter.

3. The unpowered intermittent vertical flow wetland purification system of claim 1,

and a first water diversion tank which can uniformly distribute the purification objects to the first stone filter is arranged between the first water diversion tank and the first stone filter.

4. The unpowered intermittent vertical flow wetland purification system of claim 3,

the water outlet of the first water dividing tank is arranged at a position which is spaced from the upper part of the first stone filter by a certain height.

5. The non-kinetic energy intermittent vertical flow wetland purification system of any one of claims 1 to 4,

a plurality of vent holes are formed in the periphery of the first stone filter;

a vent pipe communicated with the first stone filter is inserted through the vent hole.

6. The unpowered intermittent vertical flow wetland purification system of claim 5,

and the water purifier is also provided with a floating lotus tank which is communicated with the first stone filter and is used for carrying out secondary purification on a purification object.

7. The unpowered intermittent vertical flow wetland purification system of claim 6,

and the ecological pond is communicated with the floating lotus pond.

8. The unpowered intermittent vertical flow wetland purification system of claim 7,

and a second stone filter and a second water dividing pool are also arranged between the floating lotus pool and the ecological pond.

9. The unpowered intermittent vertical flow wetland purification system of claim 6,

and a third stone filter is arranged between the floating lotus pool and the first stone filter.

10. The unpowered intermittent vertical flow wetland purification system of claim 9,

and a third water transfer tank and a third water distribution tank are arranged between the first stone filter and the third stone filter.

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