346 results about "Stormwater treatment" patented technology

A stormwater treatment device for removing floatables, solids and suspended particles and the like from stormwater run off, whereby a removable assembly is provided for installation into a manhole basin, the assembly including a pass-through member which receives stormwater from an incoming drainage system, and diverts low flows to at least one or more vortex separators, while allowing for high flows to bypass the separators and flow through the assembly untreated to exit the basin without diversion.

A storm water treatment device that is installed under the grate of new or existing catch basins, and more commonly referred to as an insert. The catch basin decontamination apparatus has a universal housing and support ring that allows one design to fit most applications. Adjustable chains allow for proper position below grate and a semi-flexible molded or rigid deflector directs incoming drain water to the housing. A slip-on filter / absorber cartridge fits over a perforated drain tube, in the center of the housing, allowing the drain water to first pass through the filter / absorber media before exiting through the drain tube and out the bottom of the housing. The filter / absorber cartridge includes a variety of absorber materials that absorb oil and repel water. Activated carbon, microbes and other site specific absorbents can be used in the replaceable slip-on cartridge. A leaf pre-strainer helps prevent leaves and debris from entering the housing. A clean in place suction tube and clod buster form of the apparatus aids in cleaning the housing.

A stormwater treatment system designed to separate floating pollutants, liter, and contaminated settling solids from drainage discharge. The system uses a cylindrical tank, buried below the ground, which enables separation of the pollutants. The stormwater flows around the inside perimeter of the tank until it flows into an inner cylinder through a weir (or weirs). This causes a delayed flow due to the limited entry point through the vertical weir. The extended amount of resonance time allows for separation of pollutants, liter, and contaminated solids. The stormwater continues to separate itself as it flows around the inner cylinder, up through a vertical pipe and out an outlet pipe. The solid contaminants which are left behind are stored and able to be removed later.

A liquid purification and separation apparatus for separation of pollutants in stormwater runoff is disclosed. This apparatus utilizes gravitational separation and tortuosity, resulting from a plurality of baffles both perpendicular to and oblique to the primary water flow direction, to trap substances less-dense and more-dense than water. The apparatus features improved resistance to pollutant remobilization through treatment of water volume rather than flow rates, using vertically stacked water columns of varying depths to settle small particles. An overflow structure diverts excessive liquid without interfering with purification and separation, and can be placed integrally within or external to the apparatus receptacle.

Media compositions for use in wastewater treatment, stormwater treatment, CSO treatment and greenroof stormwater management systems as filtration media, plant growth media or pollutant retention media. Media composition includes at least one of a recycled material selected from a group consisting of tire crumb, wood sawdust and paper and a naturally occurring material selected from a group consisting of sand, limestone, sandy clay, expanded clay, organics used for processing geothermal water, organics used for agricultural drainage basins and filtration, and organics for aquaculture drainage and organics used for silviculture and forest drainage, and organics used as growing media.

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 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.

A stormwater treatment system having a treatment container with two chambers, a treatment chamber and a bypass chamber. The bypass chamber includes an inlet for receiving stormwater. Disposed adjacent the inlet is an overflow tray secured to the walls of the bypass chamber. The tray includes an inlet opening for receiving the stormwater to be treated, and a discharge opening through the baffle wall that separates the two chambers for discharging stormwater that enters at low flow rates. The stormwater to be treated passes through the discharge opening into the treatment chamber where it is treated by the filter media. High flow rates will bypass the treatment chamber by overflowing a dam wall or weir defined by the overflow tray directly into the bypass chamber. Treated water from the treatment chamber passes through an underdrain pipe that enters into the bypass chamber. All water from the bypass chamber exits through pipe openings, preferably on each of three sides of the bypass chamber wall.

A liquid purification and separation apparatus for separation of pollutants in stormwater runoff is disclosed. This apparatus utilizes gravitational separation and tortuosity, resulting from a plurality of baffles both perpendicular to and oblique to the primary water flow direction, to trap substances less-dense and more-dense than water. The apparatus features improved resistance to pollutant remobilization through treatment of water volume rather than flow rates, using vertically stacked water columns of varying depths to settle small particles. An overflow structure diverts excessive liquid without interfering with purification and separation, and can be placed integrally within or external to the apparatus receptacle.

A system is provided for treating runoff water in which there is a separator and a filter for cleaning the water. A reservoir is provided to hold large quantities of water during prolonged rainstorms. The output of the reservoir is fed to the filter. The rate of flow from the reservoir to the filter is controlled and limited to flow rates at which the filter can efficiently clean the water.

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.

The invention relates to a complete technology for resource utilization of rainwater. The complete technology comprises the steps of: purifying rainwater from different underlaying surfaces by adopting split-flow and filtering methods, disinfecting, and combining the clean rainwater with a tap water or reclaimed water supplying system so as to realize resource utilization of the rainwater. According to the invention, pipelines / channels are used for sequentially connecting a rainwater overflow well, a rainwater grid well, a rainwater sedimentation tank, a rainwater split-flow tank, an inspection well, a regulation and storage tank and a clean water tank; a lift pump lifts rainwater in the rainwater clean water tank to an elevated water tank, the bottom of the elevated water tank is connected with the bottom of a mechanical filter through a pipeline, the top of a mechanical filter is sequentially connected with a filter pump and the regulation and storage tank through pipelines, and a disinfecting tank passes through a tee pipe and is respectively connected with the clean water tank and the mechanical filter by related pipeline systems so as to jointly form a rainwater colleting system, a high-efficiency purifier, a rainwater recycling system, a rainwater treatment system and a chemical feeding disinfection system.

The invention relates to rainwater treatment and recycle, and provides a rainwater runoff strengthening treatment and recycling parking space and a sidewalk system. A waterproof layer, a pebble supporting layer, an adsorptive filler layer, a filter filler layer, a steel grating plate layer and a permeable layer are sequentially arranged in a pit with depth of 1.2 to 1.5 meters from bottom to top;the system also comprises a recycle water well which takes the waterproof layer as the well bottom, takes concrete as the well wall and penetrate other layers; and a water collecting pipe layer is horizontally arranged in the pebble supporting layer, and the water collecting pipe layer consists of water collecting pipes connected across and provided with holes, wherein one or more water collecting pipes are connected to the recycle water well through an opening on the wall of the recycle water well. The system has multiple functions of water penetration, filtration, adsorption, storage, rainwater recycle and the like, and can quickly and efficiently reduce urban rain flood; and specific rainwater treatment fillers can be selected according to the pollution characteristics of regional rainwater runoff, so that the blockage of the lower basic filler is avoided, the accommodating capacity of the system on pollutants is increased and the service life of the system is prolonged.

The invention relates to an intelligent control system for comprehensive utilization of rainwater and a control method of the intelligent control system. The intelligent control system comprises a remote computer central control platform, a rainfall sensor, a rainwater collection device, a rainwater discarding flow treatment device, a rainwater collection pool, a rainwater reuse lifting pump and a clean water pool, the rainwater collection device, the rainwater discharging flow treatment device, the rainwater collection pool, the rainwater reuse lifting pump and the clean water pool are connected sequentially through a pipeline, the clean water pool is connected with an afforestation sprinkling irrigation device and a garage flushing device through a middle water electric butterfly valve, the rainwater discarding flow treatment device is connected with a municipal sewer through a rainwater discharging flow electric butterfly valve, and liquid level meters in the rainwater collection pool and the clean water pool, the rainfall sensor, the rainwater reuse lifting pump and the above valves are connected with the remote computer central control platform respectively. The control method includes: collecting liquid level of each pool in real time; intelligently combining current realtime rainfall and subsequent possible weather condition; automatically analyzing and judging; automatically controlling start and stop of each stage of rainwater reuse. The intelligent control system is reasonable in control, rainwater utilization rate is increased, off-peak electricity can be utilized for rainwater treatment, and electric energy is saved.

The invention relates to the technical field of sponge city construction, and provides a rainwater collecting and processing system. The system comprises a water diversion system, a rainwater seepage unit, a rainwater storage unit, a rainwater processing unit and a rainwater recovering unit; the water diversion system comprises a rainwater collecting groove, a water diversion pipeline, a water diversion pond and a water conveying pipeline, the rainwater collecting groove is connected with the water diversion pond through the water diversion pipeline, and the water diversion pond is communicated with the rainwater seepage unit through the water conveying pipeline; the rainwater seepage unit is arranged in a city green land and used for conveying collected rainwater into the underground rainwater storage unit; the rainwater processing unit filters the rainwater many times, and the sterilized rainwater is conveyed to the place needing water through the rainwater recovering unit. The sponge city rainwater collecting and processing system uses the rainwater for irrigation, toilet flushing, vehicle flushing and landscape water supplementing, saves tap water, reduces water treatment cost and effectively relieves the problem of water resources shortage.

A system for removing material from a flowing liquid, where the system includes one or more cartridges, where each cartridge has an outer permeable wall and an inner permeable wall that form a media region between the walls, where a media is disposed within at least part of the media region to remove at least a portion of the material from the flowing liquid, the cartridge also having an inner cartridge lumen in communication with the inner permeable wall, and a cartridge outlet in communication with the inner cartridge lumen; a cartridge chamber having a treatment region that houses the one or more cartridges, where the cartridge chamber also includes a chamber inlet to accept the flowing liquid, and a chamber outlet to discharge treated liquid; and an actuatable valve positioned outside the one or more cartridges, where the valve controls a flow rate of the flowing liquid within the treatment region by actuating in response to a change in a level of the liquid in the treatment region.

The invention relates to the technical field of urban road rainwater treatment, in particular to a kerb with the drainage function and the pollutant intercepting function in an urban road rainwater treatment system. The kerb comprises a water inlet, an overflow port, a drainage channel, an overflow channel and a rainwater grating. The rainwater grating is arranged at the water inlet, the included angles between grating bars of the rainwater grating and the inflow direction of the rainwater runoff ranges from 108 degrees t 135 degrees, and the drainage channel is arranged at the bottom of the overflow channel and communicated with a catch basin. The kerb has certain drainage capacity, can make excessive rainwater flow into the greenbelt so as to effectively delay occurrence of the peak value, and can effectively improve the overall drainage capacity of an urban road and reduce the occurrence frequency of urban inland inundation. The kerb further achieves hierarchical control over rainwater runoff pollutants, effectively improves the quality of discharged rainwater and reduces rainwater runoff pollution loads. The kerb can be produced through a modular unit and thus is convenient to construct, install, clean and maintain.

The invention provides a method for treating and utilizing rain water in residential quarters, when it rains, the pavement water enters a dual purpose settlement / water storage well through a filtration blind ditch connected with the inspection wells, the roofing rain-water flows through filter strainer, infiltration trench and enters the settlement / water storage well, when a submerged pump is opened, the rain-water enters green land through the drawing off of the sprinkling irrigation system, and the cleaned rain-water is carried into soil.

An upflow stormwater filter has horizontally aligned filter media to provide a high throughput for treatment of contaminated water, longer life to filter media, and without material head drop.

A separator for stormwater includes a long, U-shaped sediment chamber and an oil chamber.

The invention relates to a rainwater penetration collection device based on concrete-sand-based water-permeable bricks. The invention belongs to the field of construction design. The invention is characterized in that: pedestrian walkways and squares are paved by using concrete-sand-based water-permeable bricks; rainwater enters the concrete-sand-based pavement water-permeable bricks and cover-plate water-permeable bricks, and is filtered by a gravel bedding layer and a crushed stone bedding layer; rainwater enters a rainwater collection ditch through the water-permeable bricks of a ditch wall of a rainwater-collection thin ditch side wall; the rainwater is then gathered to a water storage tank on the square and is used as a landscape or used for irrigation. The device is characterized in that screened and processed desert sand is used as a main aggregate; high-grade cement is adopted as an adhesive; and proper additives are added. Frustum-shaped water-permeation holes are provided on brick bodies, and anti-slip stripes are arranged on the brick body. The device provided by the invention has the advantages that: desert sand is sufficiently utilized; the strength is high, and cost is low; the water permeability is good, and the water-permeation holes are prevented from blockage; the device is safe and comfortable; a good rainwater collection plane which is the square is sufficiently utilized; and rainwater processing is simple and feasible.

An upflow stormwater filter has horizontally aligned filter media to provide a high throughput for treatment of contaminated water, longer life to filter media, and without material head drop.

The invention discloses a first rain treatment system which comprises a first rain collecting system, a first rain storing pool, and a first rain filtering system which are communicated in sequence, wherein the first rain filtering system comprises a hydrocyclone, a rapid filter tank, and a water pump for pumping the first rain from the first rain storing pool into the cyclone separator; an underflow port of the hydrocyclone is connected to municipal sewage network pipelines, and an overflow port is connected to the rapid filter tank. Compared with the prior art, the beneficial effect of the invention is that the treatment capacity of the rainwater treatment system is improved.

Methods, systems, drain vaults, and tools are employed to treat storm water runoff from a watershed. The methods and system may include multiple drain vaults that function to receive and allow quiescence of the water so that laminate flow may be achieved between adjacent vaults. The drain vaults may be made of stacked together vault sections held in compression, and screens and arrays of tube elements are with different drain vaults. There may be combined systems where in an upstream system flow is uncontrolled during a rainstorm and some of the rainfall water is diverted to a retention structure and then in a control flow rate is transferred to a downstream treatment system that may use tube elements. A tool is used to clean the tube elements.