57 results about "Bioretention" patented technology

A bioretention pond includes a pond body and an overflow weir. The pond body includes a pond wall and a layered substrate. The layered substrate includes from bottom to top: a gravel layer, a transition layer, a pyrite layer, a plant layer, a pebble water layer, an organic layer, and a water storage layer. The overflow weir is disposed on the pebble water layer with a space left above the center of the pebble layer. The organic layer is disposed in the space and covers the pebble layer. The water storage layer is disposed onto the organic layer. The pond body further includes a perforated pipe disposed in the gravel layer; and the perforated pipe includes an outlet end disposed at the top part of the pyrite layer.

The invention discloses a bioretention facility design method based on numerical simulation and multi-objective optimization, and belongs to the technical field of rainwater management, and the method comprises the following steps: S1, obtaining a special background demand of a bioretention facility of a target area; s2: according to a filler selection layering model constructed by an analytic hierarchy process, inputting a special background demand into the filler selection layering model to obtain an internal optimal filler combination of the bioretention facility; s3, constructing a DRAINMOD hydrological model, and establishing a parameter space through BOX-Behnken experimental design to generate a plurality of groups of virtual working conditions; s4, simulating the multiple groups of virtual working conditions through a DRAINMOD hydrological model to obtain a simulation result; s5, on the basis of a sensitivity analysis method, key regulation and control parameters are determined according to simulation results; and S6, based on a simulation result, optimizing the key regulation and control parameters through a second-order polynomial regression model to obtain an optimal design parameter combination.

A rainwater garden including: a bioretention area; a rainwater collection area; and a first perforated drainage pipe. The bioretention area includes, from bottom up, a gravel layer, a transition layer, a chalcopyrite substrate layer, a biochar substrate layer, a planting layer, a cover layer, and a water storage layer. The first perforated drainage pipe is disposed in the gravel layer. The first perforated drainage pipe includes an outlet end extending to connect to the rainwater collection area; and the outlet end is flush with a top surface of the chalcopyrite substrate layer.

The invention belongs to the technical field of rainwater treatment, and relates to a multifunctional bioretention pond for enhancing nitrogen and phosphorus removal, a water accumulation layer, a covering layer, a planting layer, a medium layer, a submerging layer and a drainage layer are sequentially distributed in the pond from top to bottom, the drainage layer is provided with a drainage pipe, and a water outlet of the drainage pipe is flush with the top of the submerging layer; the submerged layer contains modified wood chips and scrap iron which are filled in a layered manner, the modified wood chips are obtained by grafting reaction of wood chips through a functional copolymer, and the use amount of the functional copolymer is 6-10 wt% of the wood chips; the functional copolymer is obtained by carrying out a copolymerization reaction on a pyridyl-containing acrylic acid monomer and a double-bond-containing acyl halide monomer according to a molar ratio of 1: (0.1-0.3). Through wood chip modification and filling structure improvement, a submerged layer of the bioretention pond is filled with modified wood chips and scrap iron in a layered manner, so that the bioretention pond has the effect of enhancing nitrogen and phosphorus removal, and meanwhile, the removal effect on heavy metal pollutants is also greatly improved.

The utility model discloses a road drainage system in a pluvial area. With the acceleration of the urbanization process, the urban inland inundation problem in a rainy region is increasingly serious. Curbs are arranged between the sidewalk and the roadway, a plurality of biological retention belts are arranged on the sidewalk and located on one side of the roadway at intervals, each retention belt comprises two ecological tree pools, and a concave green land is arranged between the ecological tree pools; one part of rainwater on the roadway is discharged into a municipal rainwater pipe network through a gutter type rainwater opening, and the other part of rainwater is converged into a bioretention zone through a kerb opening; rainwater collected in the ecological tree pool and the concave greenbelt passes through the rainwater overflow well and is finally connected into a municipal rainwater pipe network; rainwater on the sidewalk infiltrates downwards through the CT granite permeable plate and is guided to the rainwater overflow well through the perforated blind pipe in the graded broken stone layer. According to the utility model, natural accumulation, natural permeation and natural purification of rainwater are realized, so that the urban inland inundation problem is relieved.

The invention discloses a bioretention facility dielectric layer suitable for northwest regions and a preparation method, and relates to the technical field of environmental governance. The invention discloses a bioretention facility dielectric layer suitable for northwest regions and a preparation method thereof. The preparation method comprises the following steps: preparing biochar, selecting experimental biochar types, preparing modified biochar, selecting a biochar filling proportion, selecting a biochar filling mode, strengthening the dielectric layer and removing microorganisms. According to the invention, a bioretention facility medium layer suitable for northwest regions is designed, that is, a layered functional medium design is adopted, and a layer of strengthening medium is added on a basic medium, so that low-intervention and high-benefit collaborative purification is realized; special agricultural organic wastes in northwest regions are utilized to prepare biochar, and then the biochar is used for a medium layer of a bioretention facility; the bioretention facility medium layer has the advantages of comprehensive design functions including water retention, drainage and decontamination (nitrogen, phosphorus and microorganisms).

The application discloses a kind of biological retention tank whole cycle benefit evaluation method and system, the method includes, according to the structure parameter of biological retention tank and internal layering, constructs biological retention experimental column;According to the change of permeability coefficient of biological retention experimental column and the inflow of biological retention tank rainwater, obtain the failure time of biological retention tank;According to the failure time of biological retention tank, obtain the whole cycle operation benefit of biological retention tank.The application is established by biological retention experimental column according to biological retention tank, the relationship between permeability coefficient change and water inflow is obtained by experiment, the service life of biological retention tank is estimated, and the running benefit of biological retention tank whole cycle is calculated.Through the evaluation method of the application, whether biological retention facility has economic benefit in its life cycle can be judged, and whether design needs to be improved or maintenance scheme is optimized.

The present invention relates to the field of sponge city construction, and in particular to a rainwater inlet sponge parking space combined with a biological retention facility, comprising a rainwater retention box and a movable green plant enclosure arranged on the ground, an overflow pipe being provided on the side wall of the rainwater retention box, a sealing plate being provided at the box mouth of the rainwater retention box, a parking layer being provided on the sealing plate, a water filter hole being provided on the parking layer, a confluence hole being provided on the sealing plate, the water filter hole being connected to the confluence hole, and the movable green plant enclosure comprising a movable track and a green plant isolation wall, the movable track being provided around the parking layer, the green plant isolation wall being slidably connected to the movable track on one side of the parking layer, and a watering device being connected to the green plant isolation wall that can extract rainwater in the rainwater retention box to water the green plant isolation wall. The present application improves the problem that water is easily accumulated in parking spaces, the accumulated rainwater cannot be collected and utilized, and this brings inconvenience to parking.

The utility model discloses a road drainage energy dissipation measure structure which comprises a granite gutter apron layer, a bioretention zone is arranged on one side of the granite gutter apron layer, a concrete layer is arranged on the side, away from the bioretention zone, of the granite gutter apron layer, a water permeable sidewalk is arranged on the top of the concrete layer, and the water permeable sidewalk is arranged on the side, away from the bioretention zone, of the granite gutter apron layer. A plurality of groups of linear drainage ditches are formed in the concrete layer; the pebble energy dissipation layer is arranged on the side, close to the bioretention zone, of the concrete layer, the pebble energy dissipation layer is used for reducing impact of water flow in the linear drainage ditch on the bioretention zone, and a gravel layer is arranged below the pebble energy dissipation layer; the filter screen plate is installed in the linear drainage ditch and used for filtering impurities and reducing the water flow speed, and a well is arranged above the filter screen plate. The biological retention zone can effectively prevent entering rainwater from impacting the biological retention zone, so that organisms in the biological retention zone are protected, and ecological balance in the biological retention zone is guaranteed.

1. Name of the product in this design: Tubular bioretention facility. 2. Purpose of this design: For the collection, purification, and slow discharge of runoff rainwater. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the field of municipal construction, in particular to a stepped bioretention belt based on terrain adaptation, which comprises a bioretention belt body, the section of the bioretention belt body is provided with a water storage layer / water retaining weir, a planting layer, a sand filter layer and a gravel layer from top to bottom, and a permeable blind pipe is arranged in the gravel layer. Uniform water distribution is achieved through a plurality of water holding areas distributed in a stepped mode, rainwater entering the water holding areas is collected through natural infiltration in a pebble bed or a permeable blind pipe, the rainwater exceeding the infiltration capacity is continuously accumulated in the water holding areas, and when the water storage height exceeds the crest height of a water retaining weir, the rainwater overflows to the next water holding area. According to the stepped bioretention belt, initial rainwater runoff pollution can be reduced, the rainwater runoff peak value can be reduced, the runoff yield can be reduced, and the problems of runoff flushing, uneven permeation and the like can be avoided.

This invention belongs to the field of rainwater treatment technology and relates to a multifunctional bioretention tank for enhanced nitrogen and phosphorus removal. The tank comprises, from top to bottom, a water accumulation layer, a covering layer, a planting layer, a media layer, a submerged layer, and a drainage layer. The drainage layer is equipped with a drainage pipe, the outlet of which is flush with the top of the submerged layer. The submerged layer contains layered modified wood chips and iron filings. The modified wood chips are obtained by grafting functional copolymers onto the wood chips, with the amount of the functional copolymers being 6-10 wt% of the wood chips. The functional copolymers are obtained through copolymerization of pyridine-containing acrylic monomers and double-bonded acyl halide monomers at a molar ratio of 1:(0.1-0.3). This invention, through wood chip modification and improved filling structure, layers modified wood chips and iron filings in the submerged layer of the bioretention tank, thereby enhancing the nitrogen and phosphorus removal effect and significantly improving the removal efficiency of heavy metal pollutants.

The invention provides a rainwater bioretention facility capable of removing halogenated benzene pollutants, and belongs to the technical field of water treatment.The rainwater bioretention facility comprises a plurality of treatment units which are arranged in a stepped mode and each comprise a pond body, a planting filler layer, a dissolved oxygen adsorption filler layer, a dechlorination filler layer and a first gravel layer, and the planting filler layers, the dissolved oxygen adsorption filler layers, the dechlorination filler layers and the first gravel layers are sequentially arranged in the pond bodies from top to bottom; a water outlet is formed in the lower part of the rear side of the tank body of the lowest treatment unit, and L-shaped pipes arranged at the lower parts of the tank bodies of the rest treatment units are connected with the next-stage treatment unit; except the first-stage treatment unit, transparent step-shaped stop blocks and splash plates are arranged above the planting filler layers of the other treatment units at intervals; and a plurality of herbaceous plants are planted on the planting filler layer. The bioretention facility can effectively remove toxic halogenated benzene series pollutants in rainwater, avoid the toxic action of the halogenated benzene series pollutants on nitrification and denitrification microorganisms, guarantee the efficient denitrification efficiency of the bioretention facility, effectively intercept particulate matters in the rainwater, avoid filler blockage and prolong the service life.

The present disclosure provides an intelligent low-carbon treatment and reuse system for stormwater and wastewater, including: a bioretention module for collecting stormwater and treating it to obtain treated stormwater; a numerically controlled drainage module for collecting oxidation-reduction potential data and pH data of the treated stormwater and transmitting them to a control module as environmental data, and discharging treated stormwater for a preset time period based on a first control signal sent by the control module; a stormwater and wastewater collection module for storing the discharged treated stormwater and maintaining water storage volume within a preset range; an irrigation module; and the control module. Stable, efficient and low-carbon treatment and reuse of stormwater and wastewater are achieved.

The application provides a stepped biological retention facility, comprising: a plurality of retention units arranged in a stepped manner, adjacent retention units being separated by water-permeable partitions, a first-level retention unit from low to high has, from top to bottom, a planting soil layer and a first filter material layer, a second-level retention unit from low to high has, from top to bottom, a planting soil layer, a first filter material layer and a second filter material layer, a third-level retention unit from low to high has, from top to bottom, a planting soil layer, a first filter material layer, a second filter material layer and a third filter material layer, and the rest of the retention units have, from top to bottom, a planting soil layer, a first filter material layer, a second filter material layer and a plurality of third filter material layers; the first filter material layer, the second filter material layer and the third filter material layer are respectively inoculated with complete nitrification bacteria, denitrifying bacteria and phosphorus accumulating bacteria. The retention facility can be arranged in an area with a large slope, and can efficiently reduce the input of agricultural non-point source nitrogen and phosphorus pollution through the cooperation of fillers and microorganisms.

The invention provides an unpowered soil ventilation system for a bioretention facility, the system comprises a water storage module and a ventilation module which are arranged in a soil layer and are communicated with each other, and the water storage module is communicated with the interior of the soil layer so as to receive rainwater in the soil layer and provide aeration for the soil layer; a water outlet capable of being selectively opened and closed is formed in one side of the ventilation module, rainwater in the ventilation module can be discharged through the water outlet, and external air can be fed into the ventilation module and the water storage module through the water outlet; a lifting supporting unit and a discharge door control unit are further arranged, the lifting supporting unit can selectively provide support for the discharge door control unit according to the change of the liquid level in the ventilation module, and the discharge door control unit can control opening and closing of the water outlet according to the change of the liquid level in the ventilation module; the water storage module and the ventilation module are modularly combined, so that the uniform ventilation effect under the greenhouse soil of the regional greenbelt is achieved by only arranging a single ventilation module or a small number of ventilation modules, and the cost is reduced.

The present invention relates to the technical field of sponge city construction, and specifically to a building sponge rainwater biological retention pool, comprising a water collection part, a first purification part, and a second purification part arranged in sequence from the outside to the inside, and a water storage area is arranged below the water collection part, the first purification part, and the second purification part. Among them, the present invention improves the system's ability to temporarily store and slowly release rainwater by arranging a multi-stage water storage part and a water delivery network therein; in addition, the present invention further combines multiple overflow pipes to establish an effective water volume control mechanism, adjusts the water volume distribution according to different water levels, so that the system can effectively respond to various types of rainy weather and ensure the rapid discharge of rainwater. The present invention effectively solves the problems of limited water storage capacity and lack of effective water volume control in traditional biological retention pools.

An improved bioretention system and color removal method combines Water Treatment Residuals (WTRs) with biochar, to provide a color removal effect, especially one beyond what could be achieved with the WTRs or biochar alone. WTRs are commonly used in drinking water treatment plants and can include the material both in its fresh or aged form. Biochar is formed by the pyrolysis of organic material. Water, such as stormwater or surface water can be directed to flow over a color removal media of WTRs and biochar to remove the color, especially color caused by tannins from the water.

The present disclosure provides an intelligent low-carbon treatment and reuse system for stormwater and wastewater, including: a bioretention module for collecting stormwater and treating it to obtain treated stormwater; a numerically controlled drainage module for collecting oxidation-reduction potential data and pH data of the treated stormwater and transmitting them to a control module as environmental data, and discharging treated stormwater for a preset time period based on a first control signal sent by the control module; a stormwater and wastewater collection module for storing the discharged treated stormwater and maintaining water storage volume within a preset range; an irrigation module; and the control module. Stable, efficient and low-carbon treatment and reuse of stormwater and wastewater are achieved.

The invention discloses a modular gradient rainwater purification garden system, a monitoring method and a construction method. The existing rainwater garden system generally has the problems of non-standard structure and inconvenience in assembly. The system sequentially comprises a permeable pavement layer, a bioretention layer, a capillary guide and drainage layer and a water storage and reuse layer from top to bottom, each functional layer structure adopts a standard module unit, and the standard module units are connected through stainless steel tenon-and-mortise connectors in an inserted manner; waterproof rubber sealing rings and bentonite sealing strips are arranged at splicing seams of the standard module units; an intelligent monitoring unit is arranged in each functional layer and comprises a turbidity sensor, a pH sensor, a water level sensor and a temperature sensor; all the sensors are connected to the wireless module, and sensor data are uploaded to the cloud prediction platform through a network for centralized processing. According to the rainwater garden system, the flexibility and convenience of the rainwater garden system in the construction, installation and later maintenance processes are improved.

The invention discloses a method and system for evaluating and predicting the pollution reduction and carbon reduction synergistic effect of a bioretention facility, and belongs to the technical field of pollution reduction and carbon reduction.The pollution reduction and carbon reduction synergistic effect of the bioretention facility can be evaluated according to the environmental conditions of the bioretention facility such as interference of different types of antibiotics by establishing a model and a database; and design parameters and application scenes can be selected according to the expected pollutant removal effect or greenhouse gas emission reduction effect. Meanwhile, the device is easy to operate, convenient to operate and suitable for wide popularization. And support is provided for promoting wide application of the bioretention facility in the aspects of urban rainwater management and greenhouse gas emission reduction.

A bioretention facility structure design optimization method considering carbon emission performs comprehensive evaluation on runoff control capability, construction operation carbon emission and construction investment cost by constructing a bioretention facility multi-target evaluation system, and optimizes the structure design of the facility by applying an NSGA-II multi-target intelligent optimization algorithm. The method comprises the specific steps that an HYDRUS-1D model is established to calculate the runoff control capacity, a carbon emission accounting model is established to calculate the carbon emission of facilities in the material production, transportation, construction and operation maintenance processes, an investment cost calculation method is established, and finally structural design schemes with different preferences are obtained through an optimization algorithm. According to the method, the runoff regulation and control effect, carbon emission and investment cost can be effectively balanced, an optimal bioretention facility design scheme is provided, the concept of green and low-carbon development is met, and improvement of urban ecological environment quality, alleviation of climate change and protection of water resources are facilitated.

The utility model discloses a green roof adopting ecological porous fiber cotton for drainage, which relates to the technical field of sponge city bioretention facilities and comprises a medium soil layer, an ecological porous fiber cotton water storage layer is covered below the medium soil layer, a plurality of drainage pipelines are pre-buried in the medium soil layer and the ecological porous fiber cotton water storage layer, and the drainage pipelines are communicated with the medium soil layer and the ecological porous fiber cotton water storage layer. A plurality of drainage holes are evenly distributed in the drainage pipeline, and permeable filtering membranes are arranged at the drainage holes. According to the utility model, a plurality of drainage pipelines are arranged in the medium soil layer and the ecological porous fiber cotton water storage layer, so that the water content in the medium soil layer and the ecological porous fiber cotton water storage layer can be increased in heavy rain weather, and under the reference of data provided by the soil moisture sensor, the water content can be controlled to be reduced by controlling the opening of the electromagnetic valve; therefore, excessive rainwater can be quickly drained out, and the phenomenon that the weight of a roof is increased due to accumulated water caused by excessive water content of the roof is avoided.

An improved bioretention system and method combines Water Treatment Residuals with biochar, to provide a synergistic phosphorus retention effect beyond what could be achieved with the WTRs or biochar alone. WTRs are commonly used in drinking water treatment plants and can include the material both in its fresh or aged form. Biochar is formed by the pyrolysis of organic material. Water can be directed to flow through a P retention media of WTRs and biochar to synergistically retain the phosphorus from the water beyond WTR or biochar alone.

An assembled bioretention pond with nitrogen and phosphorus removal functions includes: a water collecting tank and a plurality of modules. Each module includes an anaerobic chamber and an aerobic chamber, a substrate in the anaerobic chamber is the same as that of the aerobic chamber, including a gravel distribution layer, a planting layer, a pyrite layer, a transition layer, and a gravel layer in sequence from top to bottom, and a ventilation pipe is vertically provided in the aerobic chamber and extends to the gravel layer, a water drainage pipe is mounted on a top of one side of the anaerobic chamber, a main pipe is mounted on a top of one side of the aerobic chamber and connected to a municipal stormwater pipe, a plurality of auxiliary pipes are arranged in the water collecting tank. This solution improves the ability to remove nitrogen and phosphorus pollutants from stormwater.

The invention provides a bioretention device adopting a bismuth-based photocatalytic material, and relates to the technical field of rainwater treatment, the bioretention device comprises an aerobic tank, an anaerobic tank and a water collecting tank, the aerobic tank and the anaerobic tank are filled with the same material, and the filler sequentially comprises a pebble water distribution layer, a planting layer, a pyrite layer, a transition layer, a photocatalytic layer, a gravel layer and a drainage layer from top to bottom; the aerobic tank and the anaerobic tank located at the drainage layer are communicated through a water conveying pipe, the anaerobic tank is communicated with the water collecting tank through a water collecting pipe, light supplementing lamps are vertically arranged in the aerobic tank and the anaerobic tank, each light supplementing lamp extends to the transition layer, and a drainage pipe is installed at the top end of one side of the aerobic tank and used for draining rainwater into the aerobic tank. According to the device, the capacity of removing nitrogen and phosphorus pollutants in rainwater is improved, the treatment capacity of the bioretention pond under extreme conditions is improved, and it is ensured that rainwater can be effectively purified, and water accumulation can be prevented.

An improved bioretention system and method combines Water Treatment Residuals with biochar, to provide a synergistic phosphorus retention effect beyond what could be achieved with the WTRs or biochar alone. WTRs are commonly used in drinking water treatment plants and can include the material both in its fresh or aged form. Biochar is formed by the pyrolysis of organic material. Water can be directed to flow through a P retention media of WTRs and biochar to synergistically retain the phosphorus from the water beyond WTR or biochar alone.

The utility model relates to an assembly type biological detention pond which comprises a pond body, an overflow well, a footstone groove and a decorative plate, the pond body is made of metal, and a percolation layer is laid at the bottom of the pond body and is made of glass pumice; a protective layer is laid above the percolation layer; the lower section of the overflow well is buried in the percolation layer, and the upper end of the overflow well protrudes out of the protection layer; connecting pipes are arranged at the lower ends of the overflow wells. Through the standardized and modularized pool body and footstone groove structure, the rapid assembly can be carried out, the construction quality is high, the period is short, the pollution is small, and the comprehensive benefit is high; compared with the prior art, the tank body made of stainless steel is higher in durability and long in service life; the percolation layer adopts glass pumice to replace a gravel layer and a soil filler layer, so that the construction operation is more convenient, the permeability of the percolation layer is better, and the runoff control rate is higher; the decorative plates are used for replacing green plants, maintenance cost is low, and ornamental value is higher. Compared with a traditional bioretention pond, the bioretention pond has more advantages in the aspect of safety.

The utility model belongs to the technical field of water environment treatment, and relates to a lower part water inlet type bioretention facility, which comprises a catch basin, a mud trap, a water distribution main pipe, a water distribution overflow well and a bioretention facility, and the bioretention facility comprises a water storage layer, a covering layer, a planting soil layer, a water distribution layer, an artificial soil layer and a drainage layer which are arranged from top to bottom; the intercepting well, the mud sinking well and the water distribution overflow well are sequentially communicated, the mud sinking well is communicated with the water distribution overflow well through a water distribution main pipe, the water distribution main pipe is parallel to a bioretention facility, a plurality of water distribution branch pipes are vertically and horizontally connected to the water distribution main pipe, and the water distribution branch pipes are inserted into the water distribution layer. According to the utility model, rainwater collected by more rainwater pipes with deeper burial depth can flow into the bioretention facility in a self-flowing manner, so that a lot of sites in which rainwater runoff cannot be controlled are controlled, the removal rate of pollutants in the sites is improved, the pollution load of entering urban water is reduced, and the improvement of water environment is facilitated.

The utility model discloses a novel automatic water quality monitoring device for a bioretention zone, and relates to the field of water quality monitoring devices. The system comprises an overflow well, water quality detection modules and an Internet of Things terminal, the overflow well is arranged on the low side of the bioretention zone, a water outlet is formed in the lower end of the overflow well, a water outlet pipe is arranged at the water outlet, and the two water quality detection modules are arranged on the high side of the bioretention zone and the water outlet of the overflow well respectively. The two groups of water quality detection modules are both connected to the Internet of Things terminal, and the Internet of Things terminal is connected to the far-end monitoring system through a wireless network. According to the technical scheme, automation and real-time performance of rainwater quality monitoring before and after treatment of the bioretention zone are achieved, possibility is provided for timely knowing and evaluating the purification effect of the bioretention zone, the operation complexity of water quality monitoring is reduced, the frequency and cost of manual monitoring are reduced, the operation and maintenance cost is reduced, and the monitoring efficiency is greatly improved.