CN216864989U - Low-pollution water collecting and pre-purifying system - Google Patents
Low-pollution water collecting and pre-purifying system Download PDFInfo
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- CN216864989U CN216864989U CN202123248814.1U CN202123248814U CN216864989U CN 216864989 U CN216864989 U CN 216864989U CN 202123248814 U CN202123248814 U CN 202123248814U CN 216864989 U CN216864989 U CN 216864989U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
A low-pollution water collection and pre-purification system comprising: the low-pollution water channel is internally provided with overflow weirs and water drops in a staggered manner, and aeration equipment and floating beds are arranged at the bottoms of the overflow weirs and the water drops; the drop structure is laid layer upon layer by the dry masonry and is formed, gravel is laid to the dry masonry top surface, along rivers direction in the low contaminated water channel, the drop structure is including the inclined plane that connects gradually, first platform, second platform and third platform, the height that highly is greater than the second platform of first platform, the height that highly is greater than the third platform of second platform, collect low contaminated water to in the low contaminated water channel, increase the area of contact of flowing water and air through overflow weir and drop, guarantee that the contaminated water has enough circulation time in the low contaminated water channel. And finally, the water treated by the low-pollution water channel enters the main river channel through the clear water channel.
Description
Technical Field
The utility model belongs to the technical field of polluted water treatment, and particularly relates to a collecting and treating system for low-pollution water of a main riverway riverside of a farmland.
Background
The type of land utilization around rural main river course is mainly farmland and village, and the village sewage and the income of farmland drainage of both sides produce great influence to the quality of water in main river course, and because rural irrigation canals and ditches comparatively discharge comparatively dispersedly, the collection mode effect of traditional burst formula is relatively poor, leads to the rural main river course riverside water pollution treatment difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-pollution water collecting and pre-purifying system, which aims to solve the problems that village sewage and farmland drainage are not easy to collect and treat and are directly discharged into natural waters in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme:
a low-pollution water collecting and pre-purifying system comprises a low-pollution water channel which is directly communicated with a sewage discharge source and is used for collecting and treating low-pollution water, wherein the low-pollution water channel comprises a new channel and original sewage drainage channels, wherein at least part of the new channel is arranged on two sides of a main river channel and is parallel to the extending direction of the main river channel, the original sewage drainage channels are arranged in and around villages, and the new channel is communicated with the original sewage drainage channels; a clear water channel is formed between the low-pollution water channel and the main river channel, and water flow treated by the low-pollution water channel enters the main river channel through the clear water channel.
Preferably, a plurality of overflow weirs and water drops are arranged in the low-pollution water channel in a staggered mode.
Preferably, the overflow weir and the bottom of the water drop are provided with an aeration device and a floating bed.
Preferably, the drop comprises an inclined plane, a first platform, a second platform and a third platform which are connected in sequence, wherein the height of the first platform is greater than that of the second platform, and the height of the second platform is greater than that of the third platform.
Preferably, the water drop is formed by laying multiple layers of dry stones layer by layer, and gravels are laid on the top of the water drop.
Preferably, the section of the low-pollution water channel is an ecological trapezoid section.
Preferably, the ecological trapezoid cross section sequentially comprises a gravel cushion layer with the thickness of 200-400mm, a first layer of gabion with the thickness of 400-600mm and a second layer of gabion with the thickness of 400-600mm along the vertical direction.
Preferably, still include the purification groove that preliminary purification was carried out to village sewage, still include the first purification groove that preliminary purification was carried out to village sewage and the second that collects and purify farmland irrigation water purification groove, first purification groove and second purify the groove with low pollution ditch way intercommunication.
Preferably, a plurality of purification nodes are distributed on the low-pollution water channel; the purification nodes are one or more of an ecological pond, a multi-pond wetland and a gravel bed.
Preferably, the low-pollution water channel is also provided with a recycling system, and the recycling system recycles the low-pollution water treated by the low-pollution water channel to the farmland.
The low-pollution water collecting and pre-purifying system for the riverside of the rural main riverway, provided by the utility model, collects low-pollution water into the low-pollution water channel, increases the contact area of running water and air through the overflow weir and the drop, ensures that the polluted water has enough circulation time in the low-pollution water channel, fully utilizes the existing fishpond, depression and other available land along the collection system, constructs purification nodes of an ecological pond, a multi-pond wetland and a gravel bed, treats the low-pollution water, achieves the purpose of purifying water quality, and further prevents the low-pollution water from directly entering the main riverway, and ensures the function of a clear water channel of the main riverway.
Drawings
Fig. 1 is a schematic diagram of a drop structure in an alternative embodiment of the utility model.
Fig. 2 is a schematic view of the overall structure in an alternative embodiment of the utility model.
Fig. 3 is a schematic view of an ecological trapezoid cross-section structure in an alternative embodiment of the utility model.
Fig. 4 is a schematic plan view of a low-pollution water collecting system according to an alternative embodiment of the present invention.
In the figure: 1. a low pollution water channel; 2. dropping water; 3. an aeration device; 4. purifying nodes; 5. a clear water channel; 6. and (4) a main river channel.
Detailed Description
The utility model is further illustrated by the following figures and examples.
The drainage of traditional village sewage and farmland drainage produces great influence to the quality of water in main river course, because rural irrigation canals and ditches discharge comparatively dispersedly, the collection mode effect of traditional burst formula irrigation canals and ditches is relatively poor. The utility model adopts the mode of riverside side ditches to collect low-pollution water in farmland, and purifies the water quality through the action of the low-pollution water channels and the purification nodes.
The drainage of traditional village sewage and farmland drainage produces great influence to the quality of water in main river 6, because rural irrigation canals and ditches discharge comparatively dispersedly, the collection mode effect of traditional burst formula irrigation canals and ditches is relatively poor. The utility model adopts a riverside side ditch mode to collect low-pollution water in farmland, and purifies the water quality through the action of the low-pollution water channel 1 and the purification node 4.
A low pollution water collection and pre-purification system, as shown in fig. 1 to 2, comprising: the sewage treatment system comprises a pretreatment facility directly communicated with a sewage discharge source and a low-pollution water channel 1 for collecting and treating low-pollution water, wherein the low-pollution water channel 1 comprises a newly-built ditch and original sewage discharge channels in and around regions, and the newly-built ditch and the original sewage discharge channels are communicated with each other.
The original ditches are used for sewage drainage and drainage in and around villages. The new ditch is newly built or newly excavated. Newly-built low pollution water channel 1 distributes along main river course 6 extending direction both sides, and low pollution water channel 1 is linked together through clear water passageway 5 with main river course 6 to what guarantee to converge main river course 6 is the clean rivers through purification treatment, avoids the pollution of main river course 6.
Further, the low-pollution water channel 1 is connected with a main river channel 6 through a clear water channel 5. The clear water channel 5 is arranged between the part of the low-pollution water channel 1 arranged in parallel with the extending direction of the main river channel 6 and the main river channel 6, so that the polluted water in the low-pollution water channel 1 is fully treated and purified in the low-pollution water channel 1 and then enters the main river channel 6 through the clear water channel 5. Furthermore, a gate can be arranged in the clear water channel 5 to control the flow of water; intercepting grids, filters and the like can be arranged to further reduce suspended pollutants in the water flow entering the main river 6 or sediment floating in the water.
In some embodiments, overflow weirs and drop waters 2 are staggered in the low-pollution water channel 1. The overflow weir and the drop 2 can ensure that the low-pollution water has enough residence time, so that shallow aeration is carried out on the low-pollution water in the overflow weir and the drop 2. The overflow weir reduces the velocity of flow of rivers in the low contaminated water channel 1 for the solid that exists can tentatively deposit in overflow weir department in the rivers, and is receiving the current-limiting effect of overflow weir, provides comparatively stable rivers environment for the decomposition microorganism in the rivers, is favorable to improving the organic pollutant of decomposition microorganism to low contaminated water and decomposes. On the other hand, the drop 2 in the low-pollution water channel 1 can form a falling head of the water flow, so that the oxygen dissolution amount in the water flow is increased, a necessary living environment is provided for aerobic microorganisms in the water, and the treatment effect of the low-pollution water channel 1 on the low-pollution water is further improved. Certainly, the overflow weirs and the water falling bodies 2 are arranged in the low-pollution channel in a staggered mode, so that the layering sense and the attractiveness of the low-pollution channel 1 can be improved, and the method has positive significance for improving the environment and the scene in rural areas.
Furthermore, the drop 2 structure can be formed by using various materials such as cement bricks, clay bricks and concrete, preferably, in some embodiments, the drop 2 is formed by laying multiple layers of dry masonry layer by layer, and the dry masonry laid by multiple layers is beneficial to the flow of water flow in the low-pollution water channel 1 in gaps among dry masonry blocks, so that the oxygen content in water can be improved. On the other hand, the drop 2 of the dry masonry is beneficial to the growth of aquatic plants, and can effectively beautify the environment. Further, the top surface of the dry masonry is also paved with gravel.
Preferably, the gravel particle size is 30mm to 50 mm.
The drop 2 at least comprises one-stage steps, the number of the steps of one drop 2 is determined according to the extended topographic environment and the running water requirement of the low-pollution water channel 1, and the drop 2 consisting of three-stage steps is preferred. In an exemplary embodiment, along the water flow direction in the low-pollution water channel 1, the drop 2 structure comprises an inclined plane, a first platform, a second platform and a third platform which are connected in sequence, wherein the height of the first platform is greater than that of the second platform, and the height of the second platform is greater than that of the third platform. The third platform is approximately equal to the bottom of the low-pollution water channel 1. Furthermore, gravels are paved on the first platform, the second platform and the third platform, so that the treatment effect on water flow is improved. In some embodiments, as shown in fig. 3, the third platform is inclined and deflected below the horizontal plane as a whole, the end of the third platform far away from the second platform is lower than the bottom riverbed of the low-pollution water channel 1, and a step is formed at the junction of the end of the third platform far away from the second platform and the bottom riverbed of the low-pollution water channel 1 to slow down the flow velocity of water and increase the aeration in water.
Preferably, the inclined plane is inclined according to the proportion of 1: 1.
The end surface of the low-pollution water channel 1 can be polygonal, circular arc and other shapes, and is specifically determined according to the geographical environment and the water flow requirement. Further, the top end of the low-pollution water channel 1 is higher than the elevation of the original terrain. In some embodiments, the bank sides of the two sides of the formed low-pollution water channel 1 are provided with slopes inclining towards the direction of the low-pollution water channel 1, so that the stability of the bank slope is increased on one hand, and more rainwater is collected favorably during rainfall on the other hand.
In an exemplary embodiment, as shown in fig. 3, the section of the low-pollution water channel 1 is an ecological trapezoid section, and the ecological trapezoid section sequentially comprises a gravel cushion layer with a thickness of 200-400mm, a gabion first layer with a thickness of 400-600mm, and a gabion second layer with a thickness of 400-600mm along a vertical direction.
In some embodiments, the low polluted water collecting and pre-purifying system further comprises a first purifying tank directly communicating with the sewage draining channel of the village resident domestic sewage, the first purifying tank communicating with the low polluted water channel 1. First purifying tank carries out preliminary purification treatment to domestic sewage, reduces the organic pollutant that gets into in the low contaminated water channel 1, and on the other hand, first purifying tank be provided with do benefit to the pollutant in the domestic sewage and precipitate, the subsequent processing utilization of being convenient for.
The low-pollution water channel 1 is also communicated with a farmland drainage ditch. In some embodiments, a second purification tank is further disposed between the farmland drainage ditch and the low-pollution water channels 1, and farmland irrigation water is collected and subjected to primary purification treatment and then is introduced into the low-pollution water channels 1.
Further, the low-pollution water collecting and pre-purifying system further comprises a purifying node 4 facility so as to improve the sewage purifying treatment effect. The purification node 4 facilities comprise one or more forms of water purification facilities formed by utilizing original natural landforms or natural water areas, such as an original fishpond, a depression and/or available land, such as an ecological pond, a multi-pond wetland, a gravel bed and the like, the purification node 4 facilities are connected to the low-pollution water channel 1, and water in the purification node 4 facilities enters the main river channel 6 through the low-pollution water channel 1. Furthermore, the low-pollution water firstly enters a low-pollution collecting channel and then passes through a plurality of purification nodes 4 through the channel. In an exemplary embodiment, the ecological pond is close to a natural pond shape, and aeration equipment 3, artificial floating beds and other water treatment equipment are arranged in the pond according to the water coming from the low-pollution water channel 1. The multi-pond wetland generally adopts the combination of a regulation pond and a surface flow wetland. The gravel bed purifies the incoming water through an ecological membrane formed on the surface of the gravel packing.
Further, the low-pollution water collecting and pre-purifying system further comprises a recycling system. The recycling system can guide the reclaimed water after being treated and polluted by the low-pollution water channel 1 and the purification node 4 into the irrigation channel again for agricultural planting irrigation and the like, so that the reuse of the irrigation water is realized. The recycling system comprises a plurality of fluid delivery devices such as water pumps and the like, and also comprises a temporary irrigation reservoir and a connecting channel for communicating with the irrigation channel.
The working principle is as follows:
as shown in fig. 2 and 4, village low-pollution water or sewage treated by sewage treatment facility enters low-pollution water collection system; initial rainwater and farmland low-pollution water (such as a branch ditch I, a branch ditch II and a branch ditch III in the figure 4) enter a low-pollution water collecting system. The low-pollution water collecting system fully utilizes the existing fishponds, depression and other available lands along the low-pollution water channel 1, constructs purification nodes 4 such as ecological ponds, multi-pond wetlands, gravel beds and the like, treats the low-pollution water and achieves the purpose of purifying the water quality, so that the low-pollution water is prevented from directly entering the main river channel 6, and the main river channel 6 is protected from being polluted.
The foregoing description and description of the embodiments are provided to facilitate understanding and application of the utility model by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications can be made to these teachings and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above description and the description of the embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A low-pollution water collecting and pre-purifying system is characterized by comprising a low-pollution water channel which is directly communicated with a sewage discharge source and is used for collecting and treating low-pollution water, wherein the low-pollution water channel comprises a new channel, an original sewage channel and a plurality of drainage channels, wherein at least part of the new channel is arranged on two sides of a main river channel and is parallel to the extending direction of the main river channel, the original sewage channel is arranged in and around the village, and the new channel is communicated with the original sewage channel; a clear water channel is formed between the low-pollution water channel and the main river channel, and water flow treated by the low-pollution water channel enters the main river channel through the clear water channel.
2. The low-pollution water collecting and pre-purifying system of claim 1, wherein a plurality of overflow weirs and drop waters are staggered in the low-pollution water channel.
3. The low pollution water collecting and pre-purifying system of claim 2, wherein said overflow weir and said drop bottom are provided with aeration means and a floating bed.
4. The low contamination water collection and pre-purification system of claim 2 or 3, wherein the drop comprises a sloped surface, a first platform, a second platform and a third platform connected in series, the first platform having a height greater than the second platform, the second platform having a height greater than the third platform.
5. The low-pollution water collection and pre-purification system according to claim 4, wherein the drop is formed by laying a plurality of layers of dry masonry layers, and gravel is laid on the top of the drop.
6. The low-pollution water collecting and pre-purifying system as claimed in claim 1, wherein the cross section of the low-pollution water channel is an ecological trapezoidal cross section.
7. The low-pollution water collecting and pre-purifying system as claimed in claim 6, wherein the ecological trapezoid cross section comprises a gravel cushion layer with a thickness of 200-400mm, a first layer of gabion with a thickness of 400-600mm and a second layer of gabion with a thickness of 400-600mm in sequence along the vertical direction.
8. The low pollution water collecting and pre-purifying system as claimed in claim 1, further comprising a first purifying tank for preliminarily purifying the village sewage and a second purifying tank for collecting and purifying the farm irrigation water, wherein the first purifying tank and the second purifying tank are communicated with the low pollution water channel.
9. The low-pollution water collection and pre-purification system of claim 1, wherein a plurality of purification nodes are distributed on the low-pollution water channel; the purification nodes are one or more of an ecological pond, a multi-pond wetland and a gravel bed.
10. The low-pollution water collecting and pre-purifying system of claim 1 or 8, wherein a recycling system is further disposed on the low-pollution water channel, and the recycling system recycles the low-pollution water treated by the low-pollution water channel to the farmland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123248814.1U CN216864989U (en) | 2021-12-22 | 2021-12-22 | Low-pollution water collecting and pre-purifying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123248814.1U CN216864989U (en) | 2021-12-22 | 2021-12-22 | Low-pollution water collecting and pre-purifying system |
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| CN216864989U true CN216864989U (en) | 2022-07-01 |
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| CN202123248814.1U Active CN216864989U (en) | 2021-12-22 | 2021-12-22 | Low-pollution water collecting and pre-purifying system |
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