CN205740506U - Black and odorous water body treatment and restoration system - Google Patents

Abstract

The utility model discloses a black and odorous water treatment and restoration system. The system has the advantages of low investment cost, convenient installation, good nitrogen and phosphorus removal effect, stable operation and the like. The system of the utility model includes a biochemical in-situ enhanced treatment area and an aquatic plant restoration area. The biochemical in-situ enhanced treatment area is an integrated water body in-situ repair equipment, mainly composed of a main body frame, an aerator, and a water retaining panel , drawer-type packing unit, floating biological packing, aeration supervisor, fan and fan cover, floating body and fan support; the aquatic plant restoration area is an ecological floating island restoration system, composed of planting nets and aquatic plants, distributed in Around the biochemical in-situ enhanced treatment area, the water retaining board in the biochemical in-situ enhanced treatment area separates the biochemical in-situ enhanced treatment area and the aquatic plant restoration area into two relatively independent areas, and the purified water in the biochemical in-situ enhanced treatment area It flows from the upper edge of the water retaining wall to the surrounding aquatic plant restoration area.

Description

A black and odorous water treatment and restoration system

technical field

The utility model relates to a water treatment and restoration system, in particular to a black and odorous water treatment and restoration system.

Background technique

In recent years, excessive human interference has destroyed the aquatic environment of the river system, causing problems such as the decline in the self-purification capacity of the river, the deterioration of water quality, and the decline in biodiversity. Therefore, it is urgent to control and restore the polluted river.

Common water treatment and restoration technologies include: sediment dredging, oxygen-increased aeration, dosing of chemicals and bacteria, biological barriers and ecological bases, ecological restoration, and various combination technologies. These technical measures have their own advantages and disadvantages. Sediment dredging can reduce the impact of pollutants on water bodies for a certain period of time, but it only realizes the transfer of pollutants without fundamentally removing pollutants, and the cost is high. Oxygen-increasing aeration technology is widely used, which can achieve oxygenation and stirring of water body. However, different aeration equipment often cannot meet the requirements of both oxygenation efficiency and energy consumption, and cannot fundamentally solve water pollution. Adding chemicals and strains can produce quick results, but the cost of chemicals is high and secondary pollution may occur. Biological barriers and ecological bases can intercept pollution sources to a certain extent. Its essence is to provide a carrier technology for the growth and attachment of microorganisms. Microorganisms can gather and grow on the carrier, and remove pollution in water bodies through a large number of microbial communities. This method requires less investment, low energy consumption, and simple maintenance. It can remove organic matter, nitrogen, phosphorus, and algae in water, but the filler is slow to form a film, and the biofilm is easy to fall off, thereby reducing the purification efficiency.

Ecological floating islands refer to aquatic plants cultivated with the help of floating bodies. Through the action of the roots of aquatic plants and the microorganisms attached to their roots, they absorb nutrients in the water body, thereby removing the total nitrogen, phosphorus and other substances in the water body. However, they are easily affected by seasonal changes. Disadvantages such as long processing time and unstable processing effect. As a systematic project, river course governance and restoration requires a multi-pronged approach to achieve good governance effects. Therefore, in addition to the development of efficient microbial enhanced treatment technology, it is also necessary to combine the advantages of other treatment methods to integrate different treatment technologies. The synergistic effect of the combined technology can efficiently, quickly, economically and stably control and repair polluted rivers. .

Contents of the invention

The purpose of this utility model is to provide a black and odorous water body treatment and restoration system for the above-mentioned deficiencies in the existing water body treatment and restoration system. The system has low investment cost, convenient installation, convenient maintenance and management, fast and efficient, It has the advantages of good nitrogen and phosphorus removal effect and stable operation.

The technical scheme adopted in the utility model is:

The black and odorous water treatment and restoration system of the present utility model includes a biochemical in-situ enhanced treatment area and an aquatic plant restoration area. The biochemical in-situ enhanced treatment area is an integrated water body in-situ restoration equipment, mainly composed of a main body frame, It is composed of aerator, water retaining panel, drawer packing unit, floating biological packing, aeration main pipe, fan and fan cover, floating body and fan support. The aerator is connected to the fan through the aeration main pipe. The aerator is distributed at the bottom of the drawer packing unit. The drawer packing unit is filled with floating biological filler. The fan is fixed on the fan bracket and blows air into the integrated water in-situ restoration equipment. , so that the floating biological filler remains suspended and supplies oxygen to the microorganisms attached to the filler, and at the same time oxygenates the water body and promotes the vertical circulation of the water body; the aquatic plant restoration area is an ecological floating island restoration system, composed of planting nets Composed of aquatic plants, it is distributed around the biochemical in-situ enhanced treatment area. The water retaining board in the biochemical in-situ enhanced treatment area separates the biochemical in-situ enhanced treatment area and the aquatic plant restoration area into two relatively independent areas. The purified water in the enhanced treatment area flows from the upper edge of the water retaining wall to the surrounding aquatic plant restoration area. Among them, the ecological floating island uses the root system of plants to absorb the eutrophic substances in the polluted river, such as total phosphorus, ammonia nitrogen, organic matter, etc., so that the organic pollutants in the river can be degraded, and the water body caused by the closed or insufficient self-circulation of the river can be restored. Odor, eutrophication phenomenon, while greatly improving the transparency of water.

The further technical scheme of the black and odorous water treatment and restoration system of the present invention is that the floating body is a cylindrical floating body with anti-external impact force and anti-ultraviolet oxidation ability, and has strong buoyancy, which can be used for equipment and surrounding floating islands. Provides stable buoyancy.

The further technical solution of the black and odorous water treatment and restoration system of the present invention is that the fan is a low-noise fan, the fan cover is made of sound-insulating materials, and the power source of the fan is solar energy, electric energy or wind energy.

The black and odorous water treatment and restoration system of the present utility model, its further technical solution can also be that the size of the aeration bubbles of the aerator is from the micron level to the millimeter level, and the daily aeration time is 3 to 24 hours. The dissolved oxygen concentration in the water body is maintained at 2mg/L-8mg/L.

The further technical solution of the black and odorous water treatment and restoration system of the present invention is that the drawer-type packing unit can be drawn out from the side of the integrated water in-situ restoration equipment, which is convenient for cleaning or replacing the packing in the frame.

The further technical solution of the black and odorous water treatment and repair system of the present invention can be that the floating biological filler is a denitrification biological porous filler, and its structure is a three-dimensional space network structure, and the fillers form interpenetrating holes Structure, the porosity of the filler is >95%, the pore size is 0.5mm-7mm, the filler filling volume is 20%-60% of the volume of the integrated water in-situ treatment equipment, and the height is 100-3000mm. This new type of filler has a large specific surface area, good hydrophilicity, easy adhesion of organisms, long service life of the material, and good denitrification and organic matter removal capabilities, which can fully guarantee the water purification effect. The filling height is determined according to the water quality, and the filling volume is higher for seriously polluted water bodies.

The further technical solution of the black and odorous water treatment and restoration system of the present invention is that the planting net is a double-layer fence, and the fence is fixedly supported by PVC pipes, and the plane shape formed is circular, oval or square.

In the black and odorous water treatment and restoration system of the present utility model, its further technical solution can also be that the aquatic plants are sarcocarpus, foxtail algae, barracuda, water hibiscus, water celery, water bamboo, and vetiver one or a combination of several.

The treatment objects of the black and odorous water treatment and restoration system of the present utility model are polluted open water bodies (river courses) and closed water bodies (lakes, ponds, reservoirs in front of river gates, etc.).

The beneficial effects of the utility model are:

1. The combination technology of biochemical in-situ enhanced treatment and aquatic phytoremediation is adopted. The synergistic effect of the two can quickly and effectively degrade organic pollutants, nitrogen and phosphorus substances and other pollutants in the water body.

2. Biochemical enhanced treatment technology is in-situ treatment, does not occupy the shoreline, and can also intercept pollution sources.

3. The filler adopts special denitrification floating biological filler. As a new type of biological filler, it is easy to grow as a film, and an anaerobic environment is formed inside, which is equivalent to a small anaerobic reactor, so that the whole reactor is in the overall aerobic and internal anaerobic condition. The state of oxygen forms a unique A ² O (aerobic-anoxic-anaerobic) process to strengthen the removal of organic matter and nitrogen and phosphorus.

4. The microporous aerator is used to make the particle size of the gas in the water range from micron to millimeter, enhance the oxygen mass transfer efficiency, increase the dissolved oxygen content in the water, and at the same time convert organic nitrogen and organic phosphorus into inorganic nitrogen and inorganic nitrogen that are easy for plants to absorb. phosphorus.

5. Aquatic plants grow fast, have many ramets, large biomass, well-developed root system, and good ornamental value. They have a good purification effect on black and odorous water bodies, especially for nitrogen and phosphorus in water. It absorbs nitrogen and phosphorus from water as nutrients.

6. The combination technology of the utility model is simple and economical, easy to install, good in durability, resistant to impact load, and stable in treatment effect. It not only has the effect of improving water quality, but also has the effect of natural landscape, and is especially suitable for the treatment and restoration of black and odorous water bodies.

Description of drawings

Fig. 1 is the schematic diagram of the black and odorous water body treatment and restoration system of the present utility model

Fig. 2 is the plane view of the black and odorous water treatment and restoration system of the present utility model

In the figure: 1-main frame; 2-aerator; 3-water retaining panel; 4-drawer packing unit; 5-floating biological packing; 6-aeration supervisor; 7-fan and fan cover; 8- Floating body; 9-planting net; 10-aquatic plant; 11-fan support.

detailed description

Below in conjunction with embodiment the utility model is described in further detail:

Materials such as planting nets and aquatic plants in the utility model can be purchased from the market.

As shown in Figure 1 and Figure 2, the black and odorous water body treatment and restoration system of the present invention includes a biochemical in-situ enhanced treatment area and an aquatic plant restoration area, and the biochemical in-situ enhanced treatment area is an integrated water body original The site repair equipment consists of the main frame, aerator, water retaining panel, drawer packing unit, floating biological packing, aeration supervisor, fan and fan cover, floating body and fan support. The main frame is fixedly connected with the floating body. The buoyancy of the floating body is suspended in the water as a whole. The aerator is connected to the fan through the aeration main pipe. The aerator is distributed at the bottom of the drawer packing unit. The drawer packing unit is filled with floating biological filler. The in-situ restoration equipment for water body is blown to keep the floating biological filler in suspension and supply oxygen to the microorganisms attached to the filler, and at the same time, oxygenate the water body and promote the vertical circulation of the water body; the aquatic plant restoration area described is ecological The floating island restoration system consists of planting nets and aquatic plants, and is distributed around the biochemical in-situ enhanced treatment area. The water retaining board in the biochemical in-situ enhanced treatment area separates the biochemical in-situ enhanced treatment area and the aquatic plant restoration area into relatively independent The purified water in the biochemical in-situ enhanced treatment area flows from the upper edge of the water retaining wall to the surrounding aquatic plant restoration area. The whole integrated water in-situ restoration equipment is suspended on the water surface by the buoyancy of the floating body, and the fan fixed on the fan bracket aerates upwards through the aerator at the bottom of the equipment, driving the water to flow upwards, passing through the floating filling unit in the drawer packing unit. Biological filler, the pollutants in the water body are adsorbed and degraded by the microorganisms attached to the floating biological filler, and the purified water flows from the upper edge of the water retaining board around the equipment to the surrounding water body; several areas of planting nets are arranged around the equipment, and Cultivate one or more aquatic plants in the planting net, and you can choose one or a combination of several plants such as scorpion grass, foxtail algae, pike grass, water hibiscus, water celery, water bamboo, and vetiver.

Apply the utility model to a certain section of polluted river, the river is about 1000m long, the average river width is 15m, and the water depth is about 1.2m. , COD is 67mg/L, ammonia nitrogen is 4.6mg/L and total phosphorus is 0.8mg/L. The system is applied in this river course, with 3 sets of equipment, 3×2×1.2(m), the height of the filling layer is 0.4m, the aeration rate is 40-50m ³ /h, and the daily aeration time is 12h; The planting area is 300m ² , and the planting grass is planted. One month later, replanting and adjustments were carried out according to the survival of the plants. After three months of treatment and restoration, the water quality indicators were 6mg/L-7mg/L for DO, 28mg/L for COD, and 0.96mg/L for ammonia nitrogen. , the total phosphorus is 0.21mg/L, and the water quality reaches the standard of Class IV water body.

Claims (8)

1. A black and odorous water body control and restoration system, characterized in that it includes a biochemical in-situ enhanced treatment area and an aquatic plant restoration area, and the biochemical in-situ enhanced treatment area is an integrated water body in-situ restoration equipment, mainly composed of a main body It is composed of frame, aerator, water retaining panel, drawer packing unit, floating biological packing, aeration main pipe, fan and fan cover, floating body and fan support. , the aerator is connected to the fan through the aeration main pipe, the aerator is distributed at the bottom of the drawer packing unit, and the drawer packing unit is filled with floating biological packing, and the fan is fixed on the fan bracket, and it flows into the integrated water body in-situ restoration equipment Blowing air keeps the floating biological filler in suspension and supplies oxygen to the microorganisms attached to the filler, and at the same time oxygenates the water body and promotes the vertical circulation of the water body; the aquatic plant restoration area is an ecological floating island restoration system, composed of Composed of planting nets and aquatic plants, it is distributed around the biochemical in-situ enhanced treatment area. The water retaining board in the biochemical in-situ enhanced treatment area separates the biochemical in-situ enhanced treatment area and the aquatic plant restoration area into two relatively independent areas. The purified water in the in-situ enhanced treatment area flows from the upper edge of the water retaining wall to the surrounding aquatic plant restoration area. 2. The black and odorous water treatment and repair system according to claim 1, characterized in that the floating body is a cylindrical floating body with anti-external impact force and anti-ultraviolet oxidation ability. 3. The black and odorous water treatment and repair system according to claim 1, characterized in that the fan is a low-noise fan, the fan cover is made of sound-insulating materials, and the source of fan power is solar energy, electric energy or wind energy. 4. The black and odorous water treatment and repair system according to claim 1, characterized in that the size of the aeration bubbles of the aerator ranges from micron to millimeter, and the daily aeration time is 3 to 24 hours. The dissolved oxygen concentration in the water body is maintained at 2mg/L-8mg/L. 5. The black and odorous water body treatment and restoration system according to claim 1, characterized in that the drawer-type packing unit can be drawn out from the side of the integrated water body in-situ restoration equipment. 6. The black and odorous water body treatment and repair system according to claim 1, characterized in that the floating biological filler is a denitrification biological porous filler, and its structure is a three-dimensional space network structure, and the fillers form interpenetrating holes Structure, the porosity of the filler is >95%, the pore size is 0.5mm-7mm, the filler filling volume is 20%-60% of the volume of the integrated water in-situ treatment equipment, and the height is 100-3000mm. 7. The black and odorous water body treatment and restoration system according to claim 1, characterized in that the planting net is a double-layer fence, the fence is fixedly supported by PVC pipes, and the plane shape formed is circular, oval or square. 8. The black and odorous water treatment and restoration system according to claim 1, characterized in that said aquatic plants are sarcocarpus, foxtail algae, barracuda, water hibiscus, water celery, water bamboo, vetiver one or a combination of several.