CN104399314A - Water quality processing system of diversion and drainage river channel - Google Patents
Water quality processing system of diversion and drainage river channel Download PDFInfo
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- CN104399314A CN104399314A CN201410690446.1A CN201410690446A CN104399314A CN 104399314 A CN104399314 A CN 104399314A CN 201410690446 A CN201410690446 A CN 201410690446A CN 104399314 A CN104399314 A CN 104399314A
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- ejectment
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Abstract
The invention provides a water quality processing system of a diversion and drainage river channel. The water quality processing system is arranged on the diversion and drainage river channel between an external water body and a receiving water body, and comprises a diversion and drainage unit, a natural settlement unit and an interception and filtration processing unit, wherein the diversion and drainage unit, the natural settlement unit and the interception and filtration processing unit are sequentially arranged in a water diversion direction. The diversion and drainage unit is arranged at a water diversion port and is provided with a two-way pump and sluice. The cross section of the natural settlement unit is wider than that of the diversion and drainage river channel and is longer than that of the interception and filtration processing unit, and a bottom surface of the natural settlement unit is lower than that of the diversion and drainage river channel. The interception and filtration processing unit comprises multiple interception and filtration processing devices with filtration stuffing inside; in the length direction of the diversion and drainage river channel, the interception and filtration processing devices are parallel; in the width direction of the diversion and drainage river channel, the interception and filtration processing devices are sequentially overlapped; in the depth direction of the diversion and drainage river channel, the interception and filtration processing devices are sequentially staggered. The system can be used for purifying and processing the introduced water body comprehensively in the length, width and depth directions of the diversion and drainage river channel in a three-dimensional manner and effectively purifies the introduced water body.
Description
Technical field
The invention belongs to ecological environment field of engineering technology, particularly relate to a kind of Water quality processing system for ejectment river course.
Background technology
The water bodys such as the lake of more current relative closures and river course are subject to pollution in various degree, and while prevention and control of pollution source, the water body increasing receiving water body from outside diversion exchanges and hydrodynamic condition has become an important governing measure.But in practical application, when the water yield of outside body of water is sufficient, the time of diversion and efficiency are often limited to the water quality of outside body of water.When such as outside body of water sediment charge is higher, diversion enters receiving water body, then can reduce the transparency of receiving water body, and then affects the health of the ecosystem of receiving water body.Now then can consider to build precipitation process system.
General precipitation process system adopts and arranges along journey precipitation ditch, surface-flow intercepting system or filter plant etc., but these systems all exist certain deficiency: precipitation ditch treatment effeciency is relatively low, can not remove comparatively granule and other pollutant; Surface-flow intercepting system treatment effeciency is relatively better, but floor space is relatively large; Filter plant treatment effeciency is relatively better, but is not suitable for large discharge diversion, consumes energy higher.The existing precipitation process systems technology for diversion all has certain limitation, limits the timeliness of diversion to a certain extent.
Summary of the invention
The shortcoming of prior art in view of the above, the technical problem to be solved in the present invention is to provide a kind of outside body of water that can be used for processing high SS concentration, improves the water quality environment of institute's diversion body, the ejectment river water quality treatment system of good purification.
For achieving the above object and other relevant objects, the invention provides a kind of ejectment river water quality treatment system, be arranged on the ejectment river course between outside body of water and receiving water body, it is characterized in that: comprise ejectment unit, natural sedimentation unit and the interception filtration treatment unit laid successively along diversion water (flow) direction; Described ejectment unit is arranged at the irrigating gate place in described ejectment river course, comprises the water pump and sluice that control flow rate of water flow; The cross section width of described natural sedimentation unit is greater than the cross section width in described ejectment river course, on the length direction in described ejectment river course, the length of described natural sedimentation unit is less than the length of described interception filtration treatment unit, and the bottom surface of described natural sedimentation unit is lower than the bottom surface in described ejectment river course; Described interception filtration treatment unit comprises many group interception filtration treatment devices, and on the length direction in described ejectment river course, each described interception filtration treatment device is parallel to each other; On the width in described ejectment river course, each described interception filtration treatment device successively overlapping arrangement is arranged; On the depth direction in described ejectment river course, described interception filtration treatment device successively height is crisscross arranged; Filter packing is provided with in described interception filtration treatment device.
Preferably, the described water pump of described ejectment unit and sluice possess the two-way function of diversion and draining.
Preferably, described interception filtration treatment device is rectangular shape, and each described interception filtration treatment device is placed, along the oblique placement of diversion water (flow) direction relative to the plane perpendicular in described ejectment river course.
Preferably, on the width in described ejectment river course, adjacent two described interception filtration treatment devices are not in contact with each other, and the length of mutually overlapping part is 1/4 of described interception filtration treatment device length.
Preferably, the width of described interception filtration treatment device is 1/4 of the length of interception filtration treatment device.
Preferably, described interception filtration treatment device comprises outside framework and is arranged at the described filter packing in described outside framework.
Preferably, described filter packing is the different gravel of particle diameter, along diversion water (flow) direction, and the descending setting of particle diameter of described gravel.
Preferably, for the described interception filtration treatment device that is crisscross arranged of height, be fixedly equiped with the bracing frame that current can flow through below the filtration treatment device being positioned at eminence, the upper surface of described filtration treatment device flushes with the water surface in described ejectment river course; The lower surface being positioned at the filtration treatment device of lower flushes with the bottom surface in described ejectment river course; Height and the depth of water being more than or equal to described ejectment river course of two described interception filtration treatment devices.
Preferably, described interception filtration treatment unit comprises described in five groups tackles filtration treatment device, and in diversion water (flow) direction, the first group interception filtration treatment device nearest apart from described irrigating gate is positioned at lower.
Preferably, the cross section width of described natural sedimentation unit is more than or equal to the cross section width in the described ejectment river course of 3 times, and the bottom surface of described natural sedimentation unit is lower than the bottom surface 0.5m in described ejectment river course.
As mentioned above, ejectment river water quality treatment system of the present invention, has following beneficial effect: precipitate from the length in ejectment river course, width, each orientation of the degree of depth the water body introduced, tackle filtration treatment.Ejectment unit can make the water body two-way flow in ejectment river course, both can effectively purify introducing water quality, and can clear up again to Water quality processing system.Natural sedimentation unit enables oarse-grained SS effectively precipitate, and improves the efficiency of precipitation process.Interception filtration treatment unit effectively tackles filtration treatment to nutrient salts such as the small particle diameter SS not easily precipitated and N, P.Whole ejectment river water quality treatment system floor space is little, and treatment effeciency is high, good purification, power consumption are few, can be used for processing the outside body of water being rich in the nutrient salt such as high concentration SS and N, P, effectively improves the water quality environment introducing water body.
Accompanying drawing explanation
Fig. 1 is shown as the top view of ejectment river water quality treatment system of the present invention.
Fig. 2 is shown as the front view of ejectment river water quality treatment system of the present invention.
Fig. 3 is shown as the structural representation of the interception filtration treatment device being positioned at eminence in ejectment river water quality treatment system of the present invention.
Element numbers explanation
1 ejectment unit
11 irrigating gates
21 diversion water (flow) directions
22 water drain flow path directions
3 ejectment river courses
31 bottom surface, ejectment river courses
The 32 ejectment river course waters surface
4 natural sedimentation unit
The bottom surface of 41 natural sedimentation unit
The border of 42 natural sedimentation unit
5 interception filtration treatment unit
51 interception filtration treatment devices
5101 first groups of interception filtration treatment devices
5102 second groups of interception filtration treatment devices
5103 the 3rd groups of interception filtration treatment devices
5104 the 4th groups of interception filtration treatment devices
5105 the 5th groups of interception filtration treatment devices
511 outside frameworks
512 gravels
52 bracing frames
6 receiving water bodies
7 outside body of water
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this description can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by detailed description of the invention different in addition, and the every details in this description also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Refer to Fig. 1 to Fig. 3.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Fig. 1 and Fig. 2 shows the structural representation of ejectment river water quality treatment system provided by the invention, as depicted in figs. 1 and 2, this ejectment river water quality treatment system is arranged on the ejectment river course 3 between outside body of water 7 and receiving water body 6, comprises ejectment unit 1, natural sedimentation unit 4 and the interception filtration treatment unit 5 laid successively along diversion water (flow) direction 21 (as shown by arrows).During externally to interior diversion, institute's diversion body by after ejectment unit 1 successively through natural sedimentation unit 4, interception filtration treatment unit 5, the water body introduced is processed; From inside to outside during draining, along water drain flow path direction 22 (as shown by arrows) institute displacement hull successively through interception filtration treatment unit 5, natural sedimentation unit 4 and ejectment unit 1, can clean this ejectment river water quality treatment system.
Ejectment unit 1 is arranged at irrigating gate 11 place in ejectment river course 3, comprises the water pump and sluice that control flow rate of water flow.Ejectment unit 1 has two-way pump lock, thus possesses the two-way function of inside diversion and outside draining.The form that ejectment unit 1 generally adopts pump and lock one to arrange, when introducing outside body of water 7, according to outside body of water 7 water quality condition, by regulating the gate opening of sluice or regulating the parameter of water pump to control to introduce flow and the flow velocity of current, thus avoid current to cause excessive shock load, the efficiency of follow-up natural sedimentation unit 4 and interception filtration treatment unit 5 pairs of water body purifications can be improved.During draining, if outside body of water 7 water level is too high, realize outside draining by water pump pump drainage, the hydrodynamic force that draining is formed can be rinsed interception filtration treatment unit 5, and punching falls to being jammed in intrapore sediment and pollutant.
Natural sedimentation unit 4 is the front end units in diversion Water quality processing system.On the length direction in ejectment river course 3, the length of natural sedimentation unit 4 is less than the length of interception filtration treatment unit 5; On the width in ejectment river course 3, the cross section width of natural sedimentation unit 4 is greater than the cross section width in ejectment river course 3, and the border 42 of natural sedimentation unit is beyond the border in ejectment river course 3 as can see from Figure 1; On the depth direction in ejectment river course 3, the bottom surface 41 of natural sedimentation unit is lower than the bottom surface in ejectment river course 3.Namely the area in the cross section of natural sedimentation unit 4 is greater than the area in the cross section in ejectment river course 3, therefore, introduce in water body flow process and flow into wider passage from narrower passage, current are slowed down, being conducive to the larger suspension of particle in water body and pollutant etc. is deposited in natural sedimentation unit 4, avoid it directly to enter receiving water body 6, be conducive to follow-up desilting and safeguard.In addition, oarse-grained solid suspension (Suspend Solid is called for short SS) and pollutant, by reducing the blocking to follow-up interception filtration treatment unit 5 after natural sedimentation, protect interception filtration treatment unit 5 well, improve purification efficiency.
Interception filtration treatment unit 5 is core cells of Water quality processing system, comprises many group interception filtration treatment devices 51.On the length direction in ejectment river course 3, each group interception filtration treatment device 51 is parallel to each other; On the width in ejectment river course 3, each group interception filtration treatment device 51 successively overlapping arrangement is arranged; On the depth direction in ejectment river course 3, interception filtration treatment device 51 successively height is crisscross arranged.Filter packing is provided with in interception filtration treatment device 51, the internal void formed between filter packing can adsorb, tackle, be filtered through natural sedimentation unit 4 after the SS of not easily natural sedimentation, thus the SS that can effectively remove compared with small particle diameter and other pollutant, the biomembrane purification that can also be formed by internal void introduces the nutrient salts such as N, P in water body.
Therefore, ejectment river water quality treatment system can carry out purified treatment to water body on the length in ejectment river course 3, width and depth direction omnibearing stereo.
Interception filtration treatment device 51 be rectangular shape, respectively tackles filtration treatment device 51 and vertically places relative to bottom surface, ejectment river course 31, and along the oblique placement of diversion water (flow) direction 21, the maximum face of area is met to water (flow) direction.The interception filtration treatment device 51 of oblique placement can make current form tangential velocity at apparatus surface, is convenient to the interception filtration treatment effect improving next group device.There is certain cushioning effect to current, may be used for the flowing water of large discharge.On the width in ejectment river course 3, interception filtration treatment device 51 is arranged in order, although adjacent two interception filtration treatment devices 51 are not in contact with each other overlapping mutually, can play the effect of interception filtration to the water body on whole ejectment river course 3 width.
Fig. 3 shows the structural representation of the interception filtration treatment device 51 being positioned at eminence, as shown in Figures 2 and 3, for the interception filtration treatment device 51 that height is crisscross arranged, the interception filtration treatment device 51 being positioned at eminence is supported by bracing frame 52, and its upper surface flushes with the ejectment river course water surface 32; The lower surface being positioned at the interception filtration treatment device 51 of lower flushes with bottom surface, ejectment river course 31.The height of interception filtration treatment device 51 is determined according to the depth of water in ejectment river course 3, and the height sum of two interception filtration treatment devices 51 should be more than or equal to the depth of water in ejectment river course 3.Interception filtration treatment unit 5 can be made like this can to play the effect of interception filtration to the water body in whole ejectment river course 3 degree of depth.
As shown in Figure 3, bracing frame 52 is fixedly connected with filtration treatment device, and current flow through from bracing frame 52, and bracing frame 52 generally selects reinforced concrete pile, and gos deep in the silt of bottom surface, ejectment river course 31.The filter packing that filtration treatment device comprises outside framework 511 and is arranged in outside framework 511.Filter packing is the material that can form internal void.
In embodiment, the cross section width of natural sedimentation unit 4 is more than or equal to the cross section width in the ejectment river course 3 of 3 times, respectively at least increases the width of 1 times and water velocity can be made to be reduced to original 1/3, be more conducive to SS precipitation in the both sides in ejectment river course 3.The cross section of natural sedimentation unit 4 is wider in principle, and the effect of SS natural sedimentation is better, but widely can affect deposition efficiency.The bottom surface 41 of natural sedimentation unit is than the low 0.5m in bottom surface, ejectment river course 31.If depth difference is apart from too little between the bottom surface 41 of natural sedimentation unit and bottom surface, ejectment river course 31, be unfavorable for the accumulation of SS precipitation, the SS deposited easily floats; If gap is excessive, be unfavorable for the stability of slope of zanjon herein, also need to carry out structural strengthening to side slope.In diversion water (flow) direction 21, the length of natural sedimentation unit 4 is 1/4 of interception filtration treatment unit 5 length.If the length of natural sedimentation unit 4 is too short, be unfavorable for the precipitation of SS, the load of follow-up interception filtration treatment unit 5 can be increased; If the length of natural sedimentation unit 4 is long, the efficiency of the particle natural sedimentations such as SS can be reduced again.
Often the width of group interception filtration treatment device 51 is 1/4 of length, if width is too narrow, interception filtration treatment device 51 can only play the effect of the SS of partial interception greater particle size, can not filter the SS compared with small particle diameter, and be unfavorable for the formation of Internal biological film, the poor effect of interception filtration treatment; If too wide, the resistance of interception filtration treatment device 51 pairs of current is excessive, is unfavorable for water, and when being unfavorable for draining current to the flushing of interception filtration treatment device 51.Interception filtration treatment device 51 length of mutual overlapping part on ejectment river course 3 width be also 1/4 of its length, if do not have overlapping or overlapping part is too short, easily make current formation short circuit, reduction device is to the interception filter effect of the suspensions such as SS; If overlapping part is oversize, in turn increase the resistance to current, be unfavorable for that current pass through.
The height of interception filtration treatment device 51 is 1/2 of the depth of water in ejectment river course 3.The water resistance of one group after last group arrange can reduce, is convenient to each group of device and gives full play to the effect that interception filters.Filter packing is the different gravel 512 of particle diameter, and along diversion water (flow) direction 21, the descending setting of particle diameter of gravel 512, the particle diameter of such tackled SS is also from big to small, and the gravel 512 of whole group of device all can be played a role, and interception filter effect is better.
As depicted in figs. 1 and 2, adopt ejectment river water quality treatment system of the present invention to carry out water treatment experiment, particularly, the width (width in cross section) in ejectment river course 3 is 5m, and the depth of water is 1.5m; The width (width in cross section) of natural sedimentation unit 4 is 15m, and the length in water (flow) direction is 10m, from the water surface 32 to the depth of water of the bottom surface 41 of natural sedimentation unit be 2.0m; The length of interception filtration treatment unit 5 in water (flow) direction is 40m, comprises five groups of interception filtration treatment devices 51, and often the length of group interception filtration treatment device 51 is 2.0m, width is 0.5m, highly is 0.75m; Particle diameter as the gravel 512 of filter packing is 5 ~ 20cm.
In diversion water (flow) direction 21, the first group interception filtration treatment device 5101 nearest apart from irrigating gate 11 is positioned at lower, and lower surface flushes with bottom surface, ejectment river course 31; Correspondingly, second group of interception filtration treatment device 5102 is positioned at eminence, and upper surface flushes with the described ejectment river course water surface 32; 3rd group of interception filtration treatment device 5103 with first group to tackle filtration treatment device 5101 identical, be positioned at lower; 4th group of interception filtration treatment device 5104 with second group to tackle filtration treatment device 5102 identical, be positioned at eminence; 5th group of interception filtration treatment device 5105 with the 3rd group to tackle filtration treatment device 5103 identical, be positioned at lower.In five groups of interception filtration treatment devices 51, adjacent two devices overlap length is in the longitudinal direction about 0.5m, such five groups of interception filtration treatment devices 51 can be covered with the cross section in whole ejectment river course 3, the short stream effect of current can also be reduced, extend the flow process of current.
The statistical average measured through many experiments is as follows: water diversion flow is 300m
3/ h, outside body of water SS, NH
3the mean concentration of-N, TP is respectively 45mg/L, 0.55mg/L, 0.22mg/L; Natural sedimentation unit 4 water outlet SS, NH
3-N, TP mean concentration are respectively 31mg/L, 0.50mg/L, 0.17mg/L (clearance is respectively 31%, 9%, 23%); The water outlet of interception filtration treatment unit 5 SS, NH
3-N, TP mean concentration are respectively 5.3mg/L, 0.25mg/L, 0.07mg/L (clearance is respectively 57%, 45%, 45%).
Can see from above-mentioned experimental data, the water quality of ejectment river water quality treatment system of the present invention to ejectment river course 3 serves very effective purified treatment effect.
In sum, this ejectment river water quality treatment system precipitates from the length in ejectment river course, width, each orientation of the degree of depth the water body introduced, tackles filtration treatment, can also be cleared up system itself by external draining, have that molding time is short, treatment effeciency is high, good purification, power consumption less, the feature of applied range.Can be used for processing the outside body of water being rich in the nutrient salt such as high concentration SS and N, P, effectively improve the water quality environment introducing water body.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. an ejectment river water quality treatment system, is arranged on the ejectment river course between outside body of water and receiving water body, it is characterized in that: comprise ejectment unit, natural sedimentation unit and the interception filtration treatment unit laid successively along diversion water (flow) direction; Described ejectment unit is arranged at the irrigating gate place in described ejectment river course, comprises the water pump and sluice that control flow rate of water flow; The cross section width of described natural sedimentation unit is greater than the cross section width in described ejectment river course, on the length direction in described ejectment river course, the length of described natural sedimentation unit is less than the length of described interception filtration treatment unit, and the bottom surface of described natural sedimentation unit is lower than the bottom surface in described ejectment river course; Described interception filtration treatment unit comprises many group interception filtration treatment devices, and on the length direction in described ejectment river course, each described interception filtration treatment device is parallel to each other; On the width in described ejectment river course, each described interception filtration treatment device successively overlapping arrangement is arranged; On the depth direction in described ejectment river course, described interception filtration treatment device successively height is crisscross arranged; Filter packing is provided with in described interception filtration treatment device.
2. ejectment river water quality treatment system according to claim 1, is characterized in that: the described water pump of described ejectment unit and sluice possess the two-way function of diversion and draining.
3. ejectment river water quality treatment system according to claim 1, it is characterized in that: described interception filtration treatment device is rectangular shape, each described interception filtration treatment device is placed, along the oblique placement of diversion water (flow) direction relative to the plane perpendicular in described ejectment river course.
4. ejectment river water quality treatment system according to claim 3, it is characterized in that: on the width in described ejectment river course, adjacent two described interception filtration treatment devices are not in contact with each other, and the length of mutually overlapping part is 1/4 of described interception filtration treatment device length.
5. ejectment river water quality treatment system according to claim 3, is characterized in that: the width of described interception filtration treatment device is 1/4 of the length of interception filtration treatment device.
6. ejectment river water quality treatment system according to claim 1, is characterized in that: described interception filtration treatment device comprises outside framework and is arranged at the described filter packing in described outside framework.
7. ejectment river water quality treatment system according to claim 6, is characterized in that: described filter packing is the different gravel of particle diameter, along diversion water (flow) direction, and the descending setting of particle diameter of described gravel.
8. ejectment river water quality treatment system according to claim 1, it is characterized in that: the described interception filtration treatment device that height is crisscross arranged, fixedly be equiped with the bracing frame that current can flow through below the filtration treatment device being positioned at eminence, the upper surface of described filtration treatment device flushes with the water surface in described ejectment river course; The lower surface being positioned at the filtration treatment device of lower flushes with the bottom surface in described ejectment river course; Height and the depth of water being more than or equal to described ejectment river course of two described interception filtration treatment devices.
9. ejectment river water quality treatment system according to claim 8, it is characterized in that: described interception filtration treatment unit comprises described in five groups tackles filtration treatment device, in diversion water (flow) direction, the first group interception filtration treatment device nearest apart from described irrigating gate is positioned at lower.
10. ejectment river water quality treatment system according to claim 1, it is characterized in that: the cross section width of described natural sedimentation unit is more than or equal to the cross section width in the described ejectment river course of 3 times, the bottom surface of described natural sedimentation unit is lower than the bottom surface 0.5m in described ejectment river course.
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| CN104399314B (en) | 2016-03-02 |
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