CN107954576A - A kind of unpowered staged ecological revetment cleaning system in river - Google Patents

Abstract

The invention relates to a non-powered stepped ecological slope protection purification system for a river course, which includes a water pumping system, a reservoir and a stepped slope protection system. The water hammer pump inlet is connected, the water hammer pump outlet in the pump pool is connected with the lower mouth of the upward water pipe, and the upper mouth of the water pipe is connected with the reservoir. The stepped slope protection includes a stepped multi-stage common wall purification The upper part of the first-level purification tank shares the same wall with the reservoir. The retaining wall between the first-level purification tank and the reservoir is a perforated water distribution wall. The side of the last-level purification tank near the river is connected to a water collection tank. The water receiving tank is connected with the river through the outlet pipe, and the purification tank is filled with a matrix layer, on which plants are planted; the invention has a simple structure, can effectively utilize the existing space of the river course and the kinetic energy of the river itself, intercept non-point source pollution, and give full play to the river course. The purification effect is good, and the economic and social benefits are remarkable.

Description

A non-powered stepped ecological slope protection and purification system for rivers

technical field

The invention relates to the ecological protection of rivers, in particular to a non-powered stepped ecological slope protection and purification system for rivers.

Background technique

With the rapid development of human society and economy, the discharge of pollutants such as industrial point sources and agricultural non-point sources continues to increase. Although the country has relatively mature technologies for the treatment of point source pollutants such as urban sewage, its discharge standards There is still a large gap between the surface water and the V-level water quality requirements, and the non-point source pollution that enters the water body with rainfall and runoff also lacks effective control methods, resulting in varying degrees of pollution in my country's rivers. Therefore, how to save land and power resources to the greatest extent and give full play to the role of rivers in pollutant purification has become extremely important.

River slope protection is divided into natural slope protection, hard slope protection, ecological slope protection, etc. Among them, ecological slope protection has attracted people's attention because of its good purification effect and landscape effect, and also plays a good role in river ecological restoration, such as a black Ecological slope protection for the restoration and treatment of smelly water (patent number CN201610850516.4), fan-shaped multi-step ecological buffer revetment system (patent number 201310009973.7), three-dimensional in-situ ecological restoration method for urban rivers and ditches (patent number 200710079315.X), etc., However, the current ecological slope protection is basically limited to intercepting and purifying non-point source pollution, and cannot fully exert its purifying effect on river water, so that ecological slope protection can also play the role of purifying river water while intercepting non-point source pollution. There are no relevant public reports so far.

Contents of the invention

In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a kind of non-powered stepped ecological slope protection purification system for the river, which can effectively solve the problem that the current ecological slope protection only intercepts and purifies non-point source pollution, and does not have the function of purifying river water. The problem.

The technical solution solved by the present invention is to include a pumping system, a reservoir and a stepped slope protection, the pumping system is connected to the reservoir, and the reservoir is connected to the stepped slope protection;

The pumping system includes a water inlet pool located on one side of the river, the water inlet pool is connected with the river channel through the water inlet pipe, the water inlet of the water inlet pipe is equipped with a grille, the lower part of the water inlet pool is connected with the water hammer pump water inlet in the pump pool through the water pipe, and the water inlet pool The top cover is covered with a cover plate, an overflow pipe is installed on the upper side wall of the water inlet pool, and a first control valve is installed on the water pipe. The storage tanks are connected, the pumping pipe is equipped with a second control valve, the pump pool is equipped with a tail water discharge pipe, the height of the tail water discharge pipe is consistent with the discharge port of the water hammer pump, and the water level in the pump pool is the same as that of the discharge port. flush with the upper edge;

The stepped slope protection includes a stepped multi-level purification tank with a common wall, the first-level purification tank on the upper part shares the wall with the reservoir, and the reservoir and multiple purification tanks form a ladder with equal height differences. The retaining wall between the first-level purification tank and the reservoir is a perforated water distribution wall. The side of the last-level purification tank close to the river is connected with a water receiving tank. The water receiving tank is connected to the river through the outlet pipe. The purification tank is filled with a matrix layer , plants are planted on the matrix layer.

The present invention is simple in structure, novel and unique, easy to use, saves resources, can effectively utilize the existing space of the river course and the kinetic energy of the river itself, intercept non-point source pollution, give full play to the purification effect of the river course, have good effect, and at the same time have landscape effect, economical and significant social benefits.

Description of drawings

Fig. 1 is a structural front view of the present invention;

Fig. 2 is a structural top view of the present invention;

Fig. 3 is A-A sectional view among Fig. 1 of the present invention;

Fig. 4 is the B-B sectional view among Fig. 3 of the present invention;

Fig. 5 is the C-C and D-D sectional view among Fig. 3 of the present invention;

Fig. 6 is a sectional view of E-E in Fig. 3 of the present invention.

Detailed ways

The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1-6, a river unpowered stepped ecological slope protection purification system includes a pumping system 1, a reservoir 2 and a stepped slope protection 3, the pumping system 1 is connected to the reservoir 2, and the reservoir 2 Connected with the stepped slope protection 3;

The pumping system 1 includes a water inlet pool 4 located on one side of the river channel 15. The water inlet pool 4 communicates with the river channel 15 through a water inlet pipe 16. The water inlet of the water inlet pipe 16 is equipped with a grille. The lower part of the water inlet pool 4 is connected to the pump pool 6 through the water pipe 5. The water hammer pump 7 in the water inlet is connected, the top of the water inlet pool 4 is covered with a cover plate 14, the overflow pipe 17 is installed on the upper side wall of the water inlet pool 14, the first control valve 18 is installed on the water pipe 5, and the water in the pump pool 6 The water outlet of the hammer pump 7 is connected with the lower port of the upward water pipe 8, and the upper port of the water pipe 8 is connected with the reservoir 2. The water pipe 8 is equipped with a second control valve 21, and the pump pool 6 is equipped with a tail water discharge valve. The mouth pipe 19 and the tail water discharge pipe 19 are at the same height as the drain port 20 of the water hammer pump 7, and the water level in the pump pool 6 is flush with the upper edge of the drain port 20;

The stepped slope protection 3 includes a stepped multi-stage septic tank with a common wall, the upper first-stage septic tank 10-1 shares the wall with the reservoir 2, and the reservoir 2 and a plurality of septic tanks form a structure with equal height differences. Ladder shape, the retaining wall between the first-stage purification tank 10-1 and the reservoir 2 is a perforated water distribution wall 29, and the side of the last-stage purification tank near the river 15 is connected with a water receiving tank 11, and the water receiving tank 11 It communicates with the river 15 through the outlet pipe 12, and the said purification pool is filled with a matrix layer on which plants 13 are planted.

In order to ensure the effect and convenience of use,

The reservoir 2 is a rectangular parallelepiped made of reinforced concrete along the direction of the river, with a width of 0.5m and a height of 1m.

The water level of the water inlet pool 4 is at least 30cm higher than the top of the mouth of the water pipe 5, the bottom of the mouth of the water pipe 5 is 15cm away from the bottom of the water inlet pool 4, and the mouth of the water pipe 5 extends into the water inlet pool 4 by 30-50cm.

The water level difference between the water inlet pool 4 and the pump pool 6 is 1-7m.

The water pipe 5 is a long straight hollow cylinder, and its length is 6-8 times of the water level difference between the highest part of the water pipe 5 and the pump pool 6. The water inlet of the water pipe 5 is equipped with a stainless steel filter screen with an aperture of 2-2.5 mm. First control valve 18 is contained on the water pipe 5 apart from water inlet tank 50cm.

The purification tank has at least three levels, including the first-level purification tank 10-1, the second-level purification tank 10-2 and the third-level purification tank 10-3 from high to low, and the width of each level of purification tank is 0.5 -1.0m, the height is 0.5-1.5m, the length is 5-20m, and the height difference is 0.2-1.0m; The top 5cm of each level of purification tank.

The matrix layer in the first-stage purification tank 10-1 includes a bottom-up gravel layer 22, an iron-carbon filler layer 23 and a ceramsite layer 24, and its height ratio is, gravel layer: iron-carbon filler layer: ceramsite Layer=2:1:2, the matrix layer in the second-stage purification tank 10-2 includes a bottom-up gravel layer 22, a honeycomb red block layer 25 and a zeolite layer 26, and its height ratio is, gravel layer: honeycomb Red block layer: zeolite layer=1:1:1, the matrix layer in the third-stage purification tank 10-3 includes gravel layer 22, sea oyster shell layer 27 and vermiculite layer 28 from bottom to top, and its height ratio For, gravel layer: oyster shell layer: vermiculite layer = 5:2:3; the particle diameters of the gravel, iron-carbon filler, honeycomb red bricks, and oyster shells are all 10-30mm, and ceramsite, zeolite, Vermiculite particle size is 10-15mm.

The plant 13 is one or more of canna, iris chrysalis, tall fescue and bermudagrass.

The perforated water distribution wall 29 is evenly distributed with circular holes 30 with a diameter of 6-8 mm, the distance between adjacent circular holes is 10 cm, and the diameter of the outlet pipe 12 is 10 cm.

The wall thicknesses of the reservoir 2, the water inlet 4 and the purification tank are all 10-15cm.

The purification process of the present invention is as follows: the river water first enters the water inlet pool on one side of the river channel, is transported to the water hammer pump through the water pipe, and the water hammer pump lifts the river water into the reservoir, and then enters the multi-stage purification tank through the perforated water wall , and perforate the water to the water receiving tank, and finally discharge from the water receiving tank to the downstream river.

Before the non-point source pollution brought by the runoff or the river water lifted by the pumping system enters the river, it must first pass through the non-powered stepped ecological slope protection and purification system for the river of the present invention, that is, the water flow enters the purification tanks at all levels under the action of gravity, and the water in the runoff The sediment is settled, and the pollutants in the runoff and river water are physically adsorbed by the substrate, biofilm on the substrate is degraded and absorbed by plants, and enter the river after multi-stage purification, thereby intercepting non-point source pollution and purifying river water.

The present invention has the following outstanding advantages:

(1) The present invention adopts a water hammer pump pumping system, which can not consume energy such as electricity, oil, coal, etc., fully utilizes the water level difference between upstream and downstream, relies on the water hammer pump to lift the river water to a height of 2-20m, and then purifies it through slope protection. Conventional river side purification, ectopic purification and other processes generally need to use water pumps to lift water, which consumes a lot of electricity and takes up a lot of land resources outside the river. The present invention uses the energy of the river itself to complete the purification in the river. Compared with the conventional purification system, the operating cost is greatly reduced, the river space is utilized to the maximum extent, and a large amount of land resources are saved.

(2) The present invention rationally combines substrates with different purification characteristics to fully exert the purification effect of the substrates. The various substrates used have the advantages of porous structure and large specific surface area, and are good pollutant adsorption materials and biofilm carriers. Iron-carbon fillers can promote the removal of refractory COD in water bodies. Zeolite, etc. have good ammonia nitrogen removal effects. Oyster shells and vermiculite also have great advantages in removing phosphorus, and strengthen the removal of COD, nitrogen, and phosphorus pollutants in water. The waste honeycomb red bricks used can not only absorb pollutants, but also a way of resource utilization of waste.

(3) The present invention is equipped with a multi-stage purification water tank, and the purification water tank is filled with substrates and planted plants to form a substrate-plant-microbial collaborative purification system, which effectively promotes the removal of pollutants. After testing, a river channel of the present invention has no power The step-type ecological slope protection purification system can remove 30%, 80% and 50% of COD, ammonia nitrogen and total phosphorus in the river water respectively.

(4) Various aquatic plants can be planted in the septic tank provided by the present invention in combination with the needs of the landscape. The plants grow on the slope protection, which can also prevent runoff erosion and stabilize the river bank. Pass through the purification tank to intercept non-point source pollution.

(5) The non-powered stepped ecological slope protection and purification system for river courses of the present invention has multiple functions, such as preventing runoff erosion, intercepting non-point source pollution, purifying river water nearby, etc. It is easy to maintain, and has unique advantages in the ecological purification of natural rivers, especially rivers with large drop, and has remarkable economic and social benefits.

Claims (10)

1. A non-powered stepped ecological slope protection purification system for a river course, including a pumping system (1), a reservoir (2) and a stepped slope protection (3), characterized in that: the pumping system (1) and the reservoir (2 ) are connected, and the reservoir (2) is connected with the stepped slope protection (3); The pumping system (1) includes a water inlet pool (4) located on one side of the river channel (15). The water inlet pool (4) communicates with the river channel (15) through a water inlet pipe (16). The grille, the lower part of the water inlet pool (4) is connected with the water inlet of the water hammer pump (7) in the pump pool (6) through the water pipe (5), the top of the water inlet pool (4) is covered with a cover plate (14), and the water inlet pool ( 14) The overflow pipe (17) is installed on the upper side wall, the first control valve (18) is installed on the water pipe (5), the water outlet of the water hammer pump (7) in the pump pool (6) and the upward lifting pipe (8) ) is connected to the lower port, the upper port of the pumping pipe (8) is connected to the reservoir (2), the second control valve (21) is installed on the pumping pipe (8), and the tail water discharge is installed on the pump pool (6) The outlet pipe (19), the tail water discharge outlet pipe (19) is at the same height as the drain port (20) of the water hammer pump (7), and the water level in the pump pool (6) is flush with the upper edge of the drain port (20); The stepped slope protection (3) includes a stepped multi-level purification tank with a common wall, the upper first-level purification tank (10-1) shares the wall with the reservoir (2), and the reservoir (2) and multiple The two purification tanks form a ladder shape with equal height difference. The retaining wall between the first-level purification tank (10-1) and the reservoir (2) is a perforated water distribution wall (29), and the last-level purification tank is close to One side of the river (15) is connected with a water receiving tank (11), and the water receiving tank (11) is connected with the river (15) through the outlet pipe (12). 13). 2. The non-powered stepped ecological slope protection and purification system for rivers according to claim 1, characterized in that: the reservoir (2) is a cuboid made of reinforced concrete along the direction of the river, with a width of 0.5m. The height is 1m, the length is consistent with the length of the stepped slope protection (3), and there is an overflow port (9) on the upper part of the side wall. 3. The non-powered stepped ecological slope protection purification system for rivers according to claim 1, characterized in that: the water level of the inlet pool (4) is at least 30cm higher than the top of the mouth of the water pipe (5), and the water pipe (5) The nozzle bottom is 15cm away from the bottom of the water inlet pool (4), and the nozzle of the water pipe (5) stretches into 30-50cm in the water inlet pool (4). 4. The non-powered stepped ecological slope protection and purification system for river channels according to claim 1, characterized in that: the water level difference between the inlet pool (4) and the pump pool (6) is 1-7m. 5. The non-powered stepped ecological slope protection and purification system for rivers according to claim 1, characterized in that: the water pipe (5) is a long straight hollow cylinder, the length of which is between the highest point of the water pipe (5) and the pump pool (6 ) 6-8 times the water level difference, the water inlet of the water pipe (5) is equipped with a stainless steel filter with a pore size of 2-2.5mm, and the first control valve (18) is installed on the water pipe (5) 50cm away from the water inlet pool . 6. The non-powered stepped ecological slope protection purification system for rivers according to claim 1, characterized in that: the said purification tank has at least three levels, including the first level of purification tank (10-1) from high to low, the second level of purification tank The second-level purification tank (10-2) and the third-level purification tank (10-3), the width of each level of purification tank is 0.5-1.0m, the height is 0.5-1.5m, the length is 5-20m, and the height difference is 0.2-1.0m; the height of the matrix layer in each level of purification tank is 0.45-0.95m, and the top of the matrix layer in each level of purification tank is 5cm away from the top of each level of purification tank. 7. The river unpowered stepped ecological slope protection purification system according to claim 1, characterized in that: the matrix layer in the first-stage purification tank (10-1) includes a bottom-up gravel layer (22) , Iron-carbon filler layer (23) and ceramsite layer (24), the height ratio is, gravel layer: iron-carbon filler layer: ceramsite layer = 2:1:2, in the second-stage purification tank (10-2) The matrix layer includes gravel layer (22), honeycomb red block layer (25) and zeolite layer (26) from bottom to top, and its height ratio is, gravel layer: honeycomb red block layer: zeolite layer = 1:1 : 1, the matrix layer in the third-stage septic tank (10-3) includes gravel layer (22), sea oyster shell layer (27) and vermiculite layer (28) from bottom to top, and its height ratio is, gravel Layer: sea oyster shell layer: vermiculite layer = 5:2:3; the particle size of the gravel, iron-carbon filler, honeycomb red brick, and sea oyster shell are all 10-30mm, ceramsite, zeolite, vermiculite particles The diameter is 10-15mm. 8. The non-powered stepped ecological slope protection and purification system for river channels according to claim 1, characterized in that: the plant (13) is one or more of canna, yellow iris, tall fescue, and bermudagrass. 9. The non-powered stepped ecological slope protection and purification system for river channels according to claim 1, characterized in that: the perforated water distribution wall (29) is evenly distributed with round holes (30) with a diameter of 6-8mm, adjacent to each other. The pitch of the circular holes is 10cm, and the diameter of the outlet pipe (12) is 10cm. 10. The non-powered stepped ecological slope protection and purification system for river channels according to claim 1, characterized in that: the wall thickness of the reservoir (2), inlet pool (4) and purification tank are all 10-15cm.