CN201406359Y - Treatment device for black and odorous river course - Google Patents

Abstract

The utility model relates to a treatment device for black and odorous rivers, which is composed of a garbage grid, a buffer partition and a small artificial wetland. The push-flow aeration equipment is provided between the buffer partitions, and the downstream of the push-flow aeration equipment between the upstream garbage grill and the buffer partition is provided with a drop-in port for biological strains; between the two buffer partitions A small artificial wetland and an ecological floating bed are arranged in between. The floating bed is composed of a plastic hollow frame and a fishing net fixed on the hollow frame. Plants are planted on the floating bed, and the floating bed is positioned in the water body by a fixing mechanism. The advantages are: it is a combined device, each sub-device is made of common or simple, low cost, low management cost, obvious treatment effect, can quickly degrade organic matter in the water body, and help to establish and restore the biological environment in the water environment. chain, form biodiversity and improve the self-purification capacity of water bodies.

Description

Treatment device for black and odorous river course

technical field

The utility model relates to a river course treatment device, in particular to a treatment device for heavily polluted black and smelly river courses.

Background technique

In recent years, with the development of industry and the increase of population, the pollution of water resources by humans has become more and more serious. The focus is on the input of industrial wastewater, urban domestic sewage, and fertilizers and pesticides from farmland into rivers and lakes through point sources or non-point sources. cause water pollution. In addition, human activities or natural processes emit a certain amount of harmful substances into the atmosphere, which are absorbed by rainwater and fall to the ground. Together with dissolved substances on the ground, they enter rivers and lakes through non-point sources and cause water pollution again. Especially for some small water bodies with poor fluidity, the total amount of pollutants received over the years far exceeds their own self-purification capacity, resulting in black and smelly water bodies and serious bottom sedimentation. With the continuous improvement of people's requirements for the quality of living environment, more and more attention has been paid to the control of black and odorous rivers.

Contents of the invention

The technical problem to be solved by the utility model is to provide a treatment device for black and smelly rivers according to the characteristics of black and smelly rivers, which has the characteristics of simple operation, low investment cost, low operation and management costs, and obvious treatment effect.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a treatment device for black and odorous rivers, which is located at the river section to be treated, including sewage interception facilities, which are composed of garbage grids, buffer partitions and small artificial wetlands , in the flow direction of the river section to be treated, there are garbage grills at both ends of the upstream and downstream, buffer partitions are provided inside the two garbage grills, between the garbage grills and buffer partitions, and between the two garbage grills. There are push-flow oxygenation equipment between the buffer partitions, wherein, the downstream of the push-flow oxygenation equipment between the upstream garbage grill and the buffer partition is provided with a drop-in port for biological strains; in the two buffer partitions A small artificial wetland and an ecological floating bed are arranged between them. The floating bed is composed of a plastic hollow frame and a fishing net fixed on the hollow frame. Plants are planted on the floating bed, and the floating bed is positioned by a fixing mechanism.

The device of the utility model establishes appropriate pollution-blocking and interception pretreatment devices at both ends of the river section to be treated, and installs suitable push-flow and oxygen-increasing facilities at appropriate positions in the treated river section, and puts in an appropriate amount of safe and high-efficiency biological Bacteria, after the restoration of black and odorous rivers to a certain extent, introduce biological floating beds to improve the biological chain of the water environment, and quickly degrade the organic matter in the water body in a way that follows the laws of nature itself, so as to realize the in-situ restoration of the water quality of the polluted water body and the original organic sludge at the bottom. Site mineralization, gradually establish and restore the biological chain in the water environment, form biodiversity, use the life activities of cultivated animals and plants, cultivated and inoculated microorganisms to realize the transfer, transformation and degradation of pollutants in the water body to purify water quality and improve water quality. Self-cleaning ability.

The microorganisms put in from the feeding port must be safety-approved by the national authoritative organization, and the indigenous microorganisms that have been screened and cultivated are preferred. The purpose is to absorb, degrade, and transform pollutants in the water body through the life and metabolism activities of microorganisms, and eliminate black and odor. , Improve water quality, increase transparency, promote the migration and transformation between organic matter and nutrient salts in water, realize in-situ restoration of river water and in-situ mineralization of sediment, and restore the ability of self-purification of water.

On the basis of the above scheme, the distance between the garbage grill and the buffer partition is 50-100m.

On the basis of the above solution, the shape of the garbage grill is the same as the section shape of the river, and its aperture is 10-30mm, and its purpose is to intercept large particles that may enter with the water flow.

On the basis of the above scheme, the shape of the buffer partition is the same as the section shape of the river channel, and it is composed of geotextiles, floating balls attached to the upper end of the geotextiles, and sand stones dropped from the lower end. Pre-reaction to reduce the total amount of pollution.

On the basis of the above-mentioned scheme, the described plug-flow aeration equipment is artificial waterfall, water drop, fountain, waterwheel or aerator (such as submersible aerator, deep water aerator, impeller aerator and gushing aerator, etc.), the purpose of which is to inject oxygen in the air into the water body, increase the dissolved oxygen in the water body, wet burn some organic matter in the water, activate the indigenous microorganisms remaining in the water body, and repair the broken water body biological chain. Biological and microbial life activities provide the necessary conditions. The density of plug-flow aeration equipment near the buffer partition and point source pollution inlet can be higher and the spacing can be smaller.

On the basis of the above scheme, the small-scale constructed wetland is set at the entrance of point source pollution, so that when the pollutants in the incoming water flow with the water in the wetland gaps and plant roots, they will be greatly affected by the triple action of physics, chemistry and biology. reduce.

On the basis of the above scheme, the ecological floating bed is arranged in the center or both sides of the river, the hollow frame is a rectangular hollow frame with a length of 2 to 6 meters and a width of 1 to 2 meters, and the mesh of the fishing net is 40 to 50 mm. Wherein, the fishing net is provided with one layer, and the plants planted are grasses; or the fishing net is provided with two layers, and the plants planted are erect plants.

The ecological floating bed of the utility model is an ecological floating bed mainly composed of aquatic plants and suspended biological fillers. Nitrogen, phosphorus and organic pollutants in the water body can purify the water quality and make the water body clear, and provide a good attachment environment for microorganisms, prolong the action time of microorganisms, and strengthen the effect of microorganisms. This facility is introduced after the contaminated water body has been rehabilitated to a certain extent, so as to avoid new pollution caused by plant death.

On the basis of the above solution, a string of suspended filler balls is suspended below the floating bed, which is composed of a plurality of filler balls connected in series. One end of the string of suspended filler balls is fixed on the hollow frame, and the other end is fixed with a weight.

On the basis of the above solution, the fixing mechanism includes a positioning rod and a positioning ring, the positioning ring is arranged on the hollow frame, and the positioning rod passes through the positioning ring and is inserted at the bottom of the riverbed of the water body for positioning.

On the basis of the above scheme, the fixing mechanism also includes a limit rope and a fixed anchor. A plurality of floating beds are spliced into groups and fixed by a limit rope to form a combined floating bed. One end of the limit rope is fixed with a fixed anchor, and the fixed anchor Placed in a body of water or fixed to a river bed.

The beneficial effects of the utility model are:

1. The black and odorous river treatment system device of the present utility model is a combination device, and each sub-device is a common commercial product or is made by simple manufacturing. It has low investment cost, low operation and management cost, and obvious treatment effect, which can make the water body The rapid degradation of organic matter can realize the in-situ restoration of polluted water quality and the in-situ mineralization of organic sludge at the bottom, which helps to establish and restore the biological chain in the water environment, form biodiversity and improve the self-purification ability of water bodies;

2. Through the establishment of pollution interception facilities at both ends of the treated river section and at the entrance of point source pollution, the large particle debris in the incoming water can be effectively intercepted, and the pollutants mixed in the incoming water can be pretreated to reduce the impact on the treated river section. the adverse effects of

3. Various methods can be used to increase the fluidity and dissolved oxygen of the water body, wet incinerate some organic matter in the water, activate the indigenous microorganisms remaining in the water body, provide conditions for the life activities of organisms and microorganisms in the water body, and repair the broken water body biological chain ;

4. Set up the feeding port of biological strains, absorb, degrade, and transform pollutants in the water body through the life metabolism activities of the biological strains put in, eliminate black odor, improve water quality, increase transparency, and promote the relationship between organic matter and nutrient salts in the water body. In-situ migration and transformation of river water, in-situ restoration of river water and in-situ mineralization of sediment, restore the ability of self-purification of water;

5. Through the life activities of aquatic plants planted on the ecological floating bed, it can absorb and transform some nutrients and organic matter in the water body, reduce the concentration of nitrogen and phosphorus, provide a good attachment carrier for microorganisms, help form dominant communities, and restore the self-purification ability of water bodies.

Description of drawings

Fig. 1 is a top view structural diagram of the utility model.

Fig. 2 is a schematic diagram of the structure of the garbage grill of the present invention.

Fig. 3 is a structural schematic diagram of the buffer partition of the present invention.

Fig. 4 is a schematic diagram of the structure of the small constructed wetland of the present invention.

Fig. 5 is a structural schematic diagram of the utility model ecological floating bed.

Explanation of the numbers in the drawings

1- Governance device

11-Garbage grate 111-Flat steel 112-Galvanized iron mesh

12-buffer partition 121-float 122-geotextile

123-Sandstone Le

13-Small Constructed Wetland 131-Plant 132-Upper Soil

133- Gravel Fill 134- Subsoil

2-Push flow oxygenation equipment 3-Loading port

4-ecological floating bed 41-fishing net 42-hollow frame

43-Plant 44-Suspended filler ball string 45-Limiting rope

46-Position rod 47-Fixed anchor

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Please refer to Fig. 1 to Fig. 5, a kind of black and smelly river treatment device is located at the section of the river to be treated, including the sewage interception facility 1, which is composed of a garbage grill 11, a buffer partition 12 and a small constructed wetland 13, On the water flow direction of the river section to be treated, garbage grills 11 are provided at both ends of the upstream and downstream, and buffer partitions 12 are arranged at 50-100m inside the two garbage grills 11. Between the garbage grills 11 and the buffer Between the partitions 12, and between the two buffer partitions 12, push-flow aeration equipment 2 is arranged, which is artificial waterfall, water drop, fountain, waterwheel or aerator.

The downstream of the push-flow aeration equipment 2 between the garbage grid 11 and the buffer partition 12 is provided with a drop-in port 3 for biological strains, and the biological strains are placed in the action area close to the push-flow aeration equipment 2, so that It is beneficial to the proliferation and growth of biological strains, and the first feeding should be carried out after a period of aeration and oxygenation. In the early stage of treatment, the water quality in the treatment section is poor, and the time interval of feeding is shorter and the amount of feeding is larger; after the water quality in the treatment section improves, the time interval of feeding is longer and the amount of feeding is less, and finally gradually reduced to zero.

Garbage grill 11 is made of flat steel 111 and galvanized iron mesh 112, and its shape is the inverted trapezoid with the same upper width and lower bottom that is the same as the cross-sectional shape of the river, to intercept large particles that may enter the treatment section with the water flow. The aperture is 10-30mm.

The buffer partition 12 is composed of a geotextile 122, a floating ball 121 attached to the upper end of the geotextile 122, and a gravel 123 dropped from the lower end. Fitting closely with the bottom of the river bed, the floating ball 121 ensures that it adapts to changes in different water levels.

There is a small artificial wetland 13 between the two buffer partitions 12, which is located at the entrance of point source pollution (it can also be set outside the treatment section if necessary). It is a certain length-width ratio and a certain slope on the bottom In the depression, the upper layer of soil 132, gravel filler 133 and lower layer of soil 134 are mixed to form a filler bed, and the surface of the upper layer of soil 132 is planted with aquatic plants 131 with good performance, high survival rate, strong water resistance, long growth cycle, beautiful appearance and certain economic value , so that the pollutants in the incoming water are reduced when they flow in the bed filler gap and the plant root system.

Described ecological floating bed 4 is arranged at the place with better water quality in the treatment section between the two buffer partitions 12, and can be arranged on both sides along the river channel. It is composed of a plastic hollow frame 42 and one or two layers of fishing nets 41 fixed on the hollow frame 42. The hollow frame is a rectangular hollow frame with a length of 2 to 6 meters and a width of 1 to 2 meters, the mesh of the fishing net is 40 to 50 mm, plants 43 are planted on the floating bed, and the floating bed is positioned by a fixing mechanism;

Suspended filler ball string 44 is suspended below the hollow frame 42, which is composed of a plurality of filler balls connected in series. One end of the suspended filler ball string 44 is fixed on the hollow frame 42, and the other end is fixed with a weight to ensure that it is in the air. Always maintain a drooping state in the water;

Described fixing mechanism comprises locating bar 46, locating ring (not shown in the figure), limit rope 45 and fixed anchor 47, and locating ring is arranged on the inside of four corners of rectangular hollow frame 42, and locating bar 46 passes through locating ring Inserted at the bottom of the riverbed of the river to be treated for positioning, a plurality of ecological floating beds 4 are spliced into groups and fixed by a limit rope 45 to form a combined floating bed. One end of the limit rope 45 is fixed with a fixed anchor 47, and the fixed anchor 47 is placed in the water body Position to prevent the floating bed from drifting with the water.

Claims (10)

1, a kind of controlling device of black smelly river course, be located at and wait to administer the place, section, comprise and block the dirty dirty facility that cuts, constitute by rubbish grid, buffering partition and small-sized artificial swamp, waiting to administer on the water (flow) direction of section, the upstream and downstream two ends are equipped with the rubbish grid, being equipped with buffering in the inboard of twice rubbish grid cuts off, between rubbish grid and buffering partition, and between the twice buffering is cut off, be equipped with the plug-flow oxygenating device, it is characterized in that: the downstream of the plug-flow oxygenating device between upstream rubbish grid and buffering partition is provided with the dispensing port of biological inoculum; Be provided with small-sized artificial swamp and biological floating bed between described twice buffering is cut off, described floating bed is made of plastic hollow framework and the fishing net that is fixed on the hollow frame, and plantation has plant on the floating bed, and floating bed is located by fixed mechanism.

2, the controlling device in black smelly river course according to claim 1 is characterized in that: described rubbish grid is 50～100m with the spacing that buffering is cut off.

3, the controlling device in black smelly river course according to claim 2, it is characterized in that: the shape of described rubbish grid is identical with the section form in river course, and its aperture is 10～30mm.

4, the controlling device in black smelly river course according to claim 2 is characterized in that: the shape that described buffering is cut off is identical with the section form in river course, and the sandstone that ball float that is embroidered with by geotextile, geotextile upper end and lower end bob have is reined in and constituted.

5, the controlling device in black smelly river course according to claim 1, it is characterized in that: described plug-flow oxygenating device is artificial waterfall, drop, fountain, waterwheel or aerator.

6, the controlling device in black smelly river course according to claim 1, it is characterized in that: described small-sized artificial swamp is located at the ingress of point-source pollution.

7, the controlling device in black smelly river course according to claim 1, it is characterized in that: described biological floating bed river course central authorities or the both sides of being located at, described hollow frame is long 2～6 meters, wide 1～2 meter rectangular hollow framework, described fishing net mesh is 40～50mm, and fishing net is provided with one deck or two layers.

8, the controlling device in black smelly river course according to claim 1, it is characterized in that: described floating bed below is hung with floating stuffing ball string, be made of most filling ball serial connections, an end of this floating stuffing ball string is fixed on the hollow frame, and the other end is fixed with the thing that heavily hangs down.

9, the controlling device in black smelly river course according to claim 1, it is characterized in that: described fixed mechanism comprises backstay and retaining ring, and retaining ring is arranged on the hollow frame, and backstay passes location at the bottom of the riverbed bed that is inserted in water body behind the retaining ring.

10, the controlling device in black smelly river course according to claim 9, it is characterized in that: described fixed mechanism also comprises spacing rope and mooring anchor, most floating bed splicings are fixed in groups and by spacing rope, constitute the combination floating bed, one end of spacing rope is fixed with mooring anchor, and mooring anchor places the water body location or fixes with the riverbed of water body.

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