182 results about "Bioretention" patented technology

The invention discloses an urban road rainfall runoff ecological coprocessing device and a method. The device comprises an urban road rainfall runoff ecological coprocessing box and a bioretention purification unit, wherein an overflow weir board, a second screen mesh partition and a perforation partition are arranged in the urban road rainfall runoff ecological coprocessing box at intervals sequentially; the interior of a box body is divided into an overflow chamber, a water inlet chamber, a water distribution chamber and a bioretention purification chamber that are sequentially arranged by the overflow weir board, the second screen mesh partition and the perforation partition; and the bioretention purification unit is arranged in the bioretention purification chamber, and comprises a gravel layer, a sand filter layer, a planting soil layer and plants. The device and the method can sequentially remove floating matters, particles and soluble pollutants that are in different particle sizes in rainfall runoff, achieve hierarchical control of the pollutants in the rainfall runoff, can store a part of rainfall runoff to meet growth requirements of the plants in the bioretention unit, achieve a water conservation effect, and can also achieve multi-purpose control of water quality and water quantity of the urban road rainfall runoff.

A stormwater treatment system, including a treatment container for treating stormwater through a bioretention mechanism. The treatment chamber includes an overflow / bypass system, including a flow distribution tray or flume that includes a distribution compartment or channel, an overflow dam or weir, and an overflow / bypass compartment. The stormwater distribution compartment or channel includes one or more openings for stormwater to be treated to fall onto the filter media located within the treatment container. When high flow rates are obtained that exceed the capacity of the unit, the overflow / bypass stormwater enters the overflow / bypass compartment where it is received by an overflow / bypass outlet pipe to be directed out of the container without such water being treated or further treated by the filter media.

A bioretention system and method are provided for removing phosphorus, nitrogen and other materials from effluent such as wastewater and stormwater. The system and method can include a filtration media comprising water treatment residuals and other fill such as soil. Plants can be growing in the soil. The system can also include a drainage system to regulate outflow, to function during both low and high throughputs of water.

Methods, systems and compositions for a green sorption media for bioretention soil amendments in drainfields for on-site waste water systems filled with the green sorption media to foster an anaerobic or anoxic environment saturated. The green sorption media includes one or more recycled materials, including tire crumb, sawdust, orange peel, coconut husks, leaf compost, oyster shell, soy bean hulls and one or more naturally occurring materials including peat, sands, zeolites, and clay. The wastewater filtration system for a passive drainfield includes the green sorption material mixture, a cell including baffled compartments and a riser, the cell filled with green sorption material mixture to provide an alternating cycle of aerobic and anoxic environments, an influent distribution system to distribute the influent over the cell, and a piping system arranged for dosing the cell to sustain the functionality of the green sorption material mixture to remove nutrient content in wastewater.

A bioretention system and method are provided for removing phosphorus, nitrogen and other materials from effluent such as wastewater and stormwater. The system and method can include a filtration media comprising water treatment residuals and other fill such as soil. Plants can be growing in the soil. The system can also include a drainage system to regulate outflow, to function during both low and high throughputs of water.

A stormwater treatment system and method for removing sediment, chemical pollutants, and debris from stormwater runoff by utilizing bioretention practices including physical, chemical and biological processes by passing stormwater runoff water through a multi-phase filtering and treatment train. Stormwater is initially directed to and enters a pretreatment collection chamber located within or exterior of a primarily open-bottomed, multi-dimensional container whereby entrained sediment and other transportable materials are captured and collected prior to continued transport, filtration and treatment through a media filter layer. A live plant (preferably a tree) situated within the container with roots resident in the media filter layer with the ability for expansion beyond the perimeter of the container through openings in one or more sidewalls. The treated water may be further conveyed to a separate compartment or storage area for additional filtration and temporary collection and storage, or discharged exterior of the container. A vertically positioned overflow / bypass piping apparatus may be included within the stormwater treatment system to provide additional water conveyance. Additional ancillary filtration and storage facilities may be connected to the described stormwater treatment system as conditions warrant.

The invention provides a bioretention system comprising one or more chambers and a high flow bypass system with top and bottom weirs for water filtration and storm water flow management. The invention also provides methods that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

The invention discloses a source rainwater purification and storage system based on low impact development. The source rainwater purification and storage system comprises a permeable pavement road and a concave herbaceous field. The permeable pavement road and the concave herbaceous field are connected, the bottom of the concave herbaceous field is provided with a bioretention layer, the bioretention layer comprises a biological layer, a sand layer and a gravel layer that are distributed in order, the bottom of the gravel layer is provided with a rainwater collection tank, the joint between the gravel layer and the rainwater collection tank is externally provided with a geotechnical cloth, the rainwater collection tank is composed of several rainwater collection modules, the upper parts of the tank wall on two sides of the rainwater collection tank are respectively provided with an overflow pipe, the rainwater collection tank is equipped with a water level monitoring device, by adopting a module mutual splicing method, the construction becomes convenient and the construction period is short, the collected rainwater can provide water needed for growth of green plants on the ground for a long time, natural rainwater is effectively utilized to reduce the consumption of the tap water employed by people to irrigate plants. At the same time, retention rainwater is stored to reduce surface runoff, thus being conducive to construction of sponge cities and protection of the ecological environment.

The invention provides a bioretention system comprising one or more chambers and a high flow bypass system with top and bottom weirs for water filtration and storm water flow management. The invention also provides methods that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

A stormwater treatment system including a substantially water impermeable treatment container for treating stormwater through a bioretention mechanism. The treatment container includes an overflow / bypass opening to receive stormwater that bypasses the treatment container filter media, or is only partially treated as a result of high stormwater flows in excess of the capacity of the container to treat the stormwater. The stormwater is directed into the container through an inlet, such as an inlet pipe, preferably connected to a roof drain system for processing and treating stormwater from the roof of a building. The overflow / bypass opening may be adjacent the top wall or bottom wall of the container.

A stormwater treatment system, including a treatment container for treating stormwater through a bioretention mechanism. The treatment chamber includes an overflow / bypass system, including a flow distribution tray or flume that includes a distribution compartment or channel, an overflow dam or weir, and an overflow / bypass compartment. The stormwater distribution compartment or channel includes one or more openings for stormwater to be treated to fall onto the filter media located within the treatment container. When high flow rates are obtained that exceed the capacity of the unit, the overflow / bypass stormwater enters the overflow / bypass compartment where it is received by an overflow / bypass outlet pipe to be directed out of the container without such water being treated or further treated by the filter media.

An anaerobic to aerobic sequence enhances biological degradation of many organic pollutants. Exemplary embodiments provide systems and methods for effective treatment of storm-water runoff pollutants such as hydrocarbons, nitrates, phosphorus, and heavy metals using sediment filtration and adsorption, and biochemical processes under bi-phasic bioretention conditions. By integrating these pollution cleanup pro-usages into a single unit, this apparatus optimizes retention time of the runoff through the system and maximizes removal rates of runoff pollutants, resulting in more reliable and efficient treatment mechanism than previous systems.

The invention relates to an enhanced denitriding and dephosphorizing bioretention pond applied to construction of a sponge city. The enhanced denitriding and dephosphorizing bioretention pond is characterized in that existing low-lying plots in a city are utilized to construct the bioretention pond; overland runoffs generated nearby are gathered in the bioretention pond for accumulating and are subjected to purification treatment by pipelines, artificial water catchment channels or natural terrains; treated rainwater is used for recycled water of urban afforestation or supplemented groundwater or is directly discharged to a near water area; the bioretention pond comprises three parts: a prepositive primary settling area, a filtering area and a purified water reaction area, wherein the three parts are sequentially communicated. The enhanced denitriding and dephosphorizing bioretention pond has the advantages that multiple technologies of seepage, retention, storage, purification, use and discharge are integrated; the key point is that an enhancing effect is realized in a water purifying function, and the quality of effluent is stable; the whole project is simple in structure, convenient to construct and low in construction cost.

The invention provides a bioretention system comprising one or more chambers and a high flow bypass system with top and bottom weirs for water filtration and storm water flow management. The invention also provides methods that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

An anaerobic to aerobic sequence enhances biological degradation of many organic pollutants. Exemplary embodiments provide systems and methods for effective treatment of storm-water runoff pollutants such as hydrocarbons, nitrates, phosphorus, and heavy metals using sediment filtration and adsorption, and biochemical processes under bi-phasic bioretention conditions. By integrating these pollution cleanup pro-usages into a single unit, this apparatus optimizes retention time of the runoff through the system and maximizes removal rates of runoff pollutants, resulting in more reliable and efficient treatment mechanism than previous systems.

The invention provides a treatment method and equipment for up-to-standard discharging of vitamin fermentation pharmaceutical wastewater. The treatment method includes: enabling the wastewater to sequentially pass a pretreatment unit, an anaerobic treatment unit using an IC reactor as a core, a two-stage short-cut nitrification denitrification and postpositive denitrification combined process (hereinafter referred to as a D / N / D unit) and a in-depth treatment unit adopting catalytic ozonation as a core to remove organic matter, ammonia nitrogen, total nitrogen, suspended matter and chromaticity step by step so as to reach discharging standards. The treatment method has the advantages that compared with conventional denitrification processes, oxygen consumption and alkaline adjusting agent consumption can be saved by 25% and 40% at least through multi-stage short-cut nitrification denitrification, so that infrastructure and operation cost is lowered greatly; postpositive denitrification is adopted, so that total nitrogen is ensured to be up to standards; an MBR (membrane biological reactor) is adopted to replace a secondary sedimentation tank, so that bioretention performance and stability of a system are improved greatly; the new process of catalytic ozonation which is free of agent addition and secondary pollution is adopted as the in-depth treatment unit, so that removing and decoloring effect of degradation resistant COD is excellent and the treatment method is economical and efficient.

The invention provides structures, methods, and assemblies for processing fluid entering a treatment area. The invention also provides methods, apparatuses, and additional structures that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems. One or more flow diverter pans are installed at one or more inlets of a treatment area, such as a bioretention treatment area or a storm water retention and detention system. The apparatus comprises a structural framework that can include a pan placed adjacent to an inlet of the treatment area, and internal walls extending upward from the floor of the pan and at least partially framing a bypass opening adjacent to the floor. Inlet and outlet openings of the pan define a primary flow route for fluid passing through the pan and to the surface of the treatment area. Inlet and bypass openings of the pan comprise a secondary flow route for fluid passing through the tray.

The invention provides an ecological restoration system for agricultural non-point source polluted farmland tail water. The system comprises a compound biological purification bed, wherein the compound biological purification bed is sequentially divided into an anaerobic section, an anoxic section and an aerobic section in the horizontal direction; the anaerobic section and the anoxic section are separated by a first partition plate provided with a water flow hole; the anoxic section and the aerobic section are separated by another first partition plate provided with a water flow hole; a height difference is formed between the water inlet and the water outlet of each of the anaerobic section, the anoxic section and the aerobic section; the anaerobic section and the aerobic section are filled with a filler for biofilm formation; the anoxic section is divided into n+1 sections by n guide plates provided with water flow holes; a height difference is formed between the water inlet and the water outlet of each section in the anoxic section; and an aeration pipe is further arranged in the aerobic section. The ecological restoration system achieves the effects of continuous purification process, adjustable biological treatment time, no need of sewage pumping, energy saving and consumption reduction. The compound biological purification bed is combined with other units to form a better ecological restoration system which is formed by sequentially connecting a grassed swale, a desilting basin, a simulated ecological ditch, a bioretention pond, the compound biological purification bed and an ecological system pond. The preferred system is more comprehensive in treatment process and higher in purification efficiency.

An apparatus and method for use in conjunction with grassy swales to collect and filter or otherwise treat dirty or polluted storm water runoff or other fluid is disclosed. The swale overflow screen device is used in connection with a catch basin. One or more swale overflow screen devices are installed within a bioretention swale, such that during periods of routine flow, at least a portion of storm water runoff or other passing fluids can enter the swale overflow screen device, through the catch basin and be released to a drainage system.

The invention provides structures, methods, and assemblies for bioretention systems, including tree box filters with substantially permeable panels integrated into a bottom portion of the tree box filter. The invention also provides methods and additional structures that are useful for managing stormwater flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

The invention relates to a rainwater bioretention pond for phosphorus removal beside an expressway. The rainwater bioretention pond comprises a low kerb, a water-passing channel, a bioretention pond body, a pervious concrete box body, a phosphorus removal box and a drainage pipe. One end of the water-passing channel is connected with the low kerb, and the other end of the water-passing channel is connected with the bioretention pond body. The pervious concrete box body is arranged in the bioretention pond body, and the bioretention pond body is divided into a left portion and a right portion. The phosphorus removal box is arranged in the pervious concrete box body. The drainage pipe is arranged on the bottom of the bioretention pond body. The rainwater bioretention pond for phosphorus removal beside the expressway removes phosphorus carried in the runoff to some extent in a reinforced mode, and the ability to remove the phosphorus is higher than 80 percent. Meanwhile, the rainwater bioretention pond for phosphorus removal stores, permeates and purifies the rainwater runoff, reduces the downstream rainwater flow and the rainstorm peak flow, reduces direct scouring on a watercourse and the like from rainwater, reduces the erosion phenomenon of the watercourse, and reduces pollution to the water environment from the road.

A bioretention module (40) for treating water is provided, which includes a side wall (42), and a base (41) having drainage openings (44) therein, wherein the side wall (42) and base (41) are configured to contain a filtration medium in which plants can be grown. A system for treating water is also provided, which includes one or more bioretention modules (40) placed in a filtration zone (14) to form a filtration layer (22), wherein the modules are configured to be removable from the filtration zone (14). A method of treating water is further provided, which includes the steps of: providing a bioretention module (40); placing filtration media into the module; growing plants to a desired maturity level in the filtration media in the module; preparing a filtration zone at a water treatment site to receive one or more of the modules (40); placing one or more of the modules in the filtration zone (14) such that water to be treated is directed to flow to and be treated by the module(s) (40); and collecting water from the module(s) (40) that has been treated.

The invention provides a construction method of a two-phase bioretention pond with a synchronous phosphorous and nitrogen removal function. The construction method includes screening of filler and setting of a two-phase reaction area. Filler high in total phosphorous adsorption efficiency is screened according to filler characteristic and adsorption experiment, the two-phase reaction area containing the filler comprises an aerobic reaction area used for removing phosphorus, ammonia nitrogen and organic nitrogen and an anoxia reaction area used for removing nitrate, water with known nitrogen and phosphorous content is injected from the upper side of the bioretention pond, and influences on nitrogen and phosphorous effect from altitude of the anoxia reaction area are shown by measuring nitrogen and phosphorous content in water samples from water outlets of different altitudes. In order to solve the existing problems of the bioretention pond, runoff nitrogen and phosphorous removal effect of bioretention is synchronously improved by reinforcing denitrification and filler adsorption in the bioretention pond. The construction method is applied to rainwater treatment of overland runoff of roads and city open spaces and construction roofs.

The invention discloses a city road rainwater recovery system and a method thereof. The recovery system comprises a soil-retaining frame, a bioretention zone, an ecological trench, a reservoir, a catchment main pipe, an adsorption pool, a water purification assembly, and an elevator pump, the water purification assembly is connected with the elevator pump, the catchment main pipe and the water purification assembly are communicated with the reservoir, an overflow well is arranged in the ecological trench, a filter sieve plate is arranged in the overflow well, sieve apertures are uniformly distributed on the filter sieve plate, and the bioretention zone is arranged in the soil-retaining frame. The method comprises the following steps: a) draining along a transverse direction; b) draining along a vertical direction; c) extraction and utilization; and d) regular maintenance. Through draining along the transverse direction and the vertical direction, the road draining speed is accelerated,the water amount accumulated on the road surface is reduced, appearance of a flood peak is avoided, waterlogging in the city can be effectively controlled, the rainwater can be filtered layer by layer and purified, and is stored in the reservoir, then the rainwater is lifted to ground through the elevator pump, secondary usage is carried out, and waste can be changed to valuables.

The invention discloses a bioretention pond filter layer filler and a processing method. The bioretention pond filter layer filler is prepared from the following raw materials in percentages by weight: 1-2% of a natural organic matter, 45-60% of continuously graded coarse sand, 10-25% of continuously graded medium sand and 25-35% of continuously graded fine sand. By adopting the continuously graded sand, the bioretention pond filter layer filler is more stable than an existing proportion structure layer, the component of original soil is omitted under the premise of ensuring plant growth, and the problem of blockage caused by soil hardening in the operating process of the bioretention pond is solved. Meanwhile, the invention further discloses a factory processing method with the mixture ratio. The raw materials conveyed from a wharf are dried until the moisture content is 1-3% and then stirred evenly, and the initial permeability coefficient also meets the technical requirements. The used raw materials with the ratios are continuously graded, so that the sieving process is omitted, complete drying is not needed in factory production, the procedure is simplified and the cost is reduced.

Methods, systems and compositions for a green sorption media for bioretention soil amendments in drainfields for on-site waste water systems filled with the green sorption media to foster an anaerobic or anoxic environment saturated. The green sorption media includes one or more recycled materials, including tire crumb, sawdust, orange peel, coconut husks, leaf compost, oyster shell, soy bean hulls and one or more naturally occurring materials including peat, sands, zeolites, and clay. The wastewater filtration system for a passive drainfield includes the green sorption material mixture, a cell including baffled compartments and a riser, the cell filled with green sorption material mixture to provide an alternating cycle of aerobic and anoxic environments, an influent distribution system to distribute the influent over the cell, and a piping system arranged for dosing the cell to sustain the functionality of the green sorption material mixture to remove nutrient content in wastewater.

The invention provides structures, methods, and assemblies for incorporating fixtures and appliances, such as a tree, street lamp, or light pole, into a bioretention system. The invention also provides methods, filtration modules, and additional structures that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

The invention discloses a mixed flow non-sunken bioretention pond having an initial rainwater discarding function. The retention pond comprises a bottom and sidewalls, and the retention pond is composed of three parts, namely an initial rainwater discarding and distributing well (10), a retention pond main body (20) and overflow and outflow water collecting well (30). Effective discarding and separating of initial rainwater can be achieved, and runoff pollution can be effectively controlled; a requirement on sinking downwards can be avoided, particulate pollutants in runoff entering facilitiescan be effectively relieved, the possibility that the bioretention pond gets blocked can be obviously reduced and efficient running of the facilities for a long term can be guaranteed; and through amixed flow mode combining 'upwards flowing and downwards flowing', overflowing paths of the runoff in the facilities are increased, and a control effect of the facilities over runoff pollution is obviously improved.

The invention discloses a double-layer filler bioretention device capable of efficient denitrification and dephosphorization, relating to a bioretention facility and solving the problems of low dephosphorization and denitrification efficiency and unstable removal effect in the existing facility. The double-layer filler bioretention device capable of efficient denitrification and dephosphorization is a cylindrical structure, and is composed of a water storage layer, a planting soil layer, a filler layer and a drainage layer from top to bottom, wherein the filler layer is a double-layer filler layer; the upper filler layer is filled with a high-water-permeability filler; and the lower filler layer is filled with a low-water-permeability filler. The double-layer filler bioretention device has the advantages of simple structure and obvious dephosphorization and denitrification effects, and is easy to implement and popularize.

Disclosed in this specification is a system for reducing runoff from an urban area into a body of water. In one embodiment, water flows from a sedimentation basin and into plurality of bioretention cells, each extended at an angle relative to the sedimentation basin. Overflow water flows from the plurality of biorention cells into an elongated filter. In another embodiment, a system for reducing run off from an elevated road is disclosed. The system includes an enclosure with a sedimentation basin and a biofiltration basin.