41 results about "Stormwater management" patented technology

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 inlet near an upper edge of a layered filter media vessel is equipped with a distribution header that ensures effective use of the surface area of the filter media by providing plural spaced streams of stormwater thereat, each at a point of impact having its energy dissipated by a layer of material that covers the upper layered filter media surface. The stormwater inflow is metered to control the stormwater pollutant removal process kinetics, thereby slowing the mean free path of the stormwater therethrough and optimizing pollutant capture. The water level within the vessel is height adjustable manually by a pivot arm in the form of a standing column of water coupled to the water within the container. Weep conduits are provided to slowly drain down the standing water in the system between storm events, simplifying maintenance and promoting best removal of pollutants from first-flush storm events. Stormwater pretreatment, e.g. by use of an oleophilic agent or a pH-buffering agent, is provided. Filter media are easily cleaned, as by scraping and / or adding filter media material when existing material's particulate capture capacity is exhausted.

Disclosed is a fluid, namely stormwater, management system employing a chamber having an overall substantially constant curve cross-sectional geometry, with an a-semicircular constant curve cross-sectional geometry preferred. This chamber, which preferably follows both AASHTO standard specifications for Highway Bridges, Section 18, and Corrugated Polyethylene Pipe Association (CCPA) specifications, can further comprise corregations, support members and / or connecting elements to further add structural integrity.

Systems and methods in accordance with embodiments of the invention are software models that present information in a format directly usable by stormwater managers to inform annual program decisions and consistently evaluate the effectiveness of stormwater management actions. Stormwater modeling systems in accordance with many embodiments of the invention provide a tool that can be used by stormwater managers to estimate load reductions. In a number of embodiments, a user interface is provided that streamlines user input data requirements. In this way, the stormwater modeling system can extend the utility of event-based model inputs, generate results that inform management decisions, and demonstrate progress using a common scalable unit.

A method of funding environmentally-driven public or private works projects (e.g., stormwater management and diesel fuel usage and emissions reduction projects, and generally any environmentally-driven project) that creates legacy utility or user fee-based programs so as to address urgent or mandated, environmental-related public concerns. The fund is employed to allow for projects to pass from concept to feasibility to operations stages without the need for interruption due to financial resources. Projects include any local government, State or County-influenced government, or private industry-focused initiative that triggers negative public attention and / or any potential federal sanction, penalty, or specific public notice or cost due to inaction, lack of study, or lack of seed funding mechanism. Examples include stormwater management, NPDES, floodplain management, water supply development, coastal shore protection development, wetlands banking, natural resources protection area, parks protection, water / wastewater systems, industrial air pollution abatement, diesel fuel use and emissions reductions, or other environmental development concerns.

A dual sensor sediment monitoring system for stormwater management facilities comprises a capacitive sensor and an ultrasonic sensor. The former periodically determines if a liquid layer exists above the sediment and activates the ultrasonic sensor when it does not. The echo delay measured by the ultrasonic sensor is used to calculate the sediment level, which is wirelessly transmitted to a remote computer for database compilation and use in scheduling maintenance involving sediment removal.

A system, methodology, and programming logic for active stormwater controls to optimize sizing and design of Hydromodification Management (HM) structural Best Management Practices (BMPs) to achieve optimal flow duration control. Control logic enables the controlled release of stormwater from a BMP in a manner most akin to pre-development flow duration curves. Inputs to this logic include: flow duration curves based on continuous hydrologic simulation for pre- and post-development conditions; real-time measurement of water level within the BMP; and real-time measurement of discharge entering the BMP. This control logic can interact with control logic for other stormwater management objectives, such as harvest and reuse, infiltration, and combined sewer overflow prevention, and respective inputs, such as real-time weather forecast data, precipitation gage data, downstream flow gauge data, and water quality data, to meet those design objectives as well. New HM BMPs can be optimized to be smaller and, thus, more feasible to implement. Existing stormwater facilities designed for flood control or other management objectives can be retrofitted to provide hydromodification control as well. When utilized with real-time flow and water level monitoring equipment and data, the flow release logic can be adaptively adjusted without physical retrofit of the BMP's outlet.

The invention discloses a rainwater management system and an implementing method thereof. The system comprises an induction device used for acquiring a rainwater signal, an electric valve used for controlling the on and off of the rainwater, and a controller used for controlling the opening and closing of the electric valve according to the rainwater signal, wherein the induction device and the electric valve are respectively connected with the controller. When the rainwater signal acquired by the induction device is consistent with a preset signal of the controller, the rainwater management system has two functions of preventing heavy rain from flooding, namely controlling the electric valve to close through the controller to ensure that the rainwater outflows from a removal pipe, and collecting rainwater, namely controlling the electric valve to open through the controller to ensure that the rainwater flows in a rainwater collecting tank and giving out a signal through the controller to close the electric valve so as to ensure that the rainwater outflows from the removal pipe when the water level in the rainwater collecting tank reaches the warning water level.

A stormwater management system including: a plurality of adjacent modules with each module comprising alternating domed cell units and interconnector units and wherein each domed cell unit of a module includes a pair of spaced apart vertical sidewalls that curve outwards with respect to a centerline extending lengthwise through the module; and each interconnector unit of a module includes a pair of spaced apart vertical sidewalls 52 that curve inwards with respect to the same centerline, wherein the outwardly curved vertical sidewalls of the domed cell units of any module are thus nested with the inwardly curved vertical sidewalls of the interconnector units of the next adjacent module.

A stormwater inlet near an upper edge of a layered filter media vessel is equipped with a distribution header that ensures effective use of the surface area of the filter media by providing plural spaced streams of stormwater thereat, each at a point of impact having its energy dissipated by a layer of material that covers the upper layered filter media surface. The stormwater inflow is metered to control the stormwater pollutant removal process kinetics, thereby slowing the mean free path of the stormwater therethrough and optimizing pollutant capture. The water level within the vessel is height adjustable manually by a pivot arm in the form of a standing column of water coupled to the water within the container. Weep conduits are provided to slowly drain down the standing water in the system between storm events, simplifying maintenance and promoting best removal of pollutants from first-flush storm events. Stormwater pretreatment, e.g. by use of an oleophilic agent or a pH-buffering agent, is provided. Filter media are easily cleaned, as by scraping and / or adding filter media material when existing material's particulate capture capacity is exhausted.

A catch basin retrofit that allows stormwater to be diverted from an existing storm sewer to an alternative stormwater management practice (SMP), while maintaining functionality of the catch basin as an overflow device for the alternative SMP.

An underground stormwater management system includes a receiving tank connected to a source of non-first flush runoff and a storage chamber that accumulates stormwater runoff for discharge to a storm drain. The storage chamber includes a first inlet connected to a source of first flush runoff, a second inlet connected to receive overflow from the receiving tank, a first discharge and a second discharge above the first discharge. First flush is discharged from the first discharge and is filtered before reaching the storm drain. The receiving tank assists in delaying the receipt of non-first flush runoff into the storage chamber during a major rain event. During major rain events runoff is also discharged from the storage chamber directly to the surrounding media.

A system, methodology, and programming logic for active stormwater controls to optimize sizing and design of Hydromodification Management (HM) structural Best Management Practices (BMPs) to achieve optimal flow duration control. Control logic enables the controlled release of stormwater from a BMP in a manner most akin to pre-development flow duration curves. Inputs to this logic include: flow duration curves based on continuous hydrologic simulation for pre- and post-development conditions; real-time measurement of water level within the BMP; and real-time measurement of discharge entering the BMP. This control logic can interact with control logic for other stormwater management objectives, such as harvest and reuse, infiltration, and combined sewer overflow prevention, and respective inputs, such as real-time weather forecast data, precipitation gage data, downstream flow gauge data, and water quality data, to meet those design objectives as well. New HM BMPs can be optimized to be smaller and, thus, more feasible to implement. Existing stormwater facilities designed for flood control or other management objectives can be retrofitted to provide hydromodification control as well. When utilized with real-time flow and water level monitoring equipment and data, the flow release logic can be adaptively adjusted without physical retrofit of the BMP's outlet.

The invention relates to the field of drainage, in particular to a rainwater management system capable of quickly draining rainwater. The rainwater management system comprises a drainage plate, a drainage network and a permeable layer, wherein the permeable layer covers the drainage network, and the drainage network at least comprises a unit area, a plurality of siphon variable-flow devices which are distributed on the periphery of the unit area and are connected through drainage grooves and are used for discharging water out of the unit area, a plurality of variable-flow drainage devices which are distributed on nodes of the drainage network in the unit area and are connected with one or more siphon variable-flow devices through drainage grooves so as to directionally guide water in different positions in the unit area to the siphon variable-flow devices and drainage plates which are distributed among the drainage grooves and are used for receiving water permeated from the permeable layer in the unit area and guiding the water into the drainage grooves. The relation among the drainage plates, the drainage grooves, the variable-flow drainage devices and the siphon variable-flow devices are reasonably arranged, so that the drainage efficiency is improved step by step, and an efficient drainage system is formed.

This disclosure relates generally to stormwater management and, more particularly, to a stormwater chamber with a continuous curvature. The stormwater chamber may comprise a chamber body with a chamber wall, an apex, a base, and a first and second opening. The chamber wall may include a continuous curvature from the apex of the chamber body to the first and second openings and a continuous curvature from the apex of the chamber body to the base.

The invention provides a sponge city construction evaluation method combining full life cycle cost and hydrological effect, and the method comprises the steps: firstly, designing a rainwater management measure and a rainfall scheme of a research area according to a historical rainwater measure and rainstorm flood occurring over the years; secondly, generalizing and dividing an actual rainwater pipe network of the research area to construct an SWMM model, and calibrating and verifying the SWMM model by using actually measured rainfall to obtain a final SWMM model; then, inputting the designed rainfall scheme into the final SWMM model for simulation, and comparing runoff control effects without the rainwater management measures and runoff control effects with the rainwater management measures; and finally, calculating the full life cycle cost under each rainwater management measure, and evaluating and analyzing each rainwater management measure by adopting a cost-benefit quantitative analysis method. The economic effectiveness of the rainwater management measures is evaluated by combining the full life cycle cost and the hydrological effect, and an important decision basis is provided for sponge city construction in future urban areas.

The invention provides a wind tunnel test method for vehicle side window rainwater visual field management performance. The wind tunnel test method comprises the following steps of: S1, drawing a square grid in a main driving side window of a test vehicle; S2, fixing the test vehicle on a wind tunnel plenum rotating hub dynamometer; S3, calibrating rainfall equipment in the wind tunnel according to the rainfall required by the test; S4, opening the rainfall equipment in the wind tunnel, and setting the flow of the rainfall equipment; and S5, starting a fan in the wind tunnel to a designated wind speed, after the wind speed is stable, starting a windshield wiper to the maximum hanging frequency, stopping the windshield wiper after t seconds, and meanwhile stopping the fan. According to thewind tunnel test and evaluation method for the vehicle side window rainwater visual field management performance, the environment wind tunnel is used for testing the vehicle side window rainwater management performance, the repeatability is high, the rainfall can be independently adjusted, the test result can be used for evaluating the vehicle rainwater management performance and optimizing the vehicle shape, and the method has important significance on the rainwater development of the automobile side window.

The invention relates to the technical field of permeable concrete pavements, in particular to a semi-permeable pavement system and a pavement rainwater collection system, so as to solve the technicalproblems in the background technology. The semi-permeable pavement system comprises a cushion layer, a base layer, geotechnical cloth, a drainage pipe layer, a permeable concrete lower surface layerand a permeable concrete upper surface layer which are sequentially arranged from bottom to top, and a plurality of water permeable holes are formed in the pipe wall of the drainage pipe. The semi-permeable pavement system prepared from the solid waste material can achieve the effects of collecting and discharging rainwater, effectively supplement underground water and relieve sharp drop of urbanunderground water, is beneficial to urban rainwater management and water pollution treatment, and has relatively high economic and social benefits.

The invention discloses a community rainwater recovery system in the technical field of rainwater management. The community rainwater recovery system comprises a rainwater recovery management module,a rainwater discharge management module, a valve control module and a tap water supply module. The rainwater recovery management module is used for detecting the weight of collected community rainwater, when the specified weight is reached; pollution index is detected, the rainwater discharge management module is controlled to discharge and recycle rainwater; rainwater is recycled; the weight of the rainwater is preferentially detected; whether the rainwater content reaches the recyclable standard or not is determined; according to the invention, rainwater is collected and then pollution indexes of the rainwater are detected, so that whether the collected rainwater can be completely purified or not and the purification cost can be conveniently determined, an optimal processing mode can beconveniently selected to manage variable rainwater pollution information, and safe recycling of the rainwater in a community is ensured.

The present invention presents both a method and system for controlling a stormwater management facility to operate in any one of a plurality of operational modes, each of which has differing environmental benefits resulting from its treatment of the stormwater that passes through the facility. A preferred embodiment of this system includes: an actuated control valve, a depth sensor, a valve controller that has internet connectivity and sensor interfaces and a user input means, controller software configured to control the operation of the control valve to operate in one of its plurality of operating modes, and private-cloud-based, internet-accessible, engine software that is configured to utilize weather forecasts to calculate a temporally-varying, targeted depth for the stormwater in the facility that maximizes the volume of stormwater treated in the SWM facility.

A stormwater management inlet prefilter for system use in green infrastructure which typically includes either biofiltration (e.g. bioretention, tree planters, gravel wetlands) or infiltration (e.g. leech fields, dry wells, infiltration trenches and basins) that both provide recharge of stormwater runoff to groundwater aquifers and treated discharge to surface waters. The system can be used as an edge of curb system, a drop inlet, or inline. The system can be used both in retrofit or new installations and extends the operating life and reduces the maintenance burden of stormwater management systems by filtering out trash and debris at the inlet. The system enables the simplified maintenance of stormwater management systems at the inlet in an accessible location with no special equipment required. Installation is simple and comparable to common catch basins and grates. Preferably, the system is made of pre-cast concrete, HDPE, and stainless steel and is resistant to rust and rot from corrosive winter runoff. No special equipment necessary and maintenance is simple and utilizes standard vacuum trucks for catch basin cleaning by use of a pressure washer and vacuum equipment.

Structures, methods, and assemblies for stormwater management systems with one or more internal bypass features incorporated into a vault-shaped enclosure are described, along with methods and additional structures that are useful for managing stormwater flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems. A first compartment disposed within the vault and comprising a removable bypass pipe, a baffle wall adjacent to the bypass pipe, a screened floatables baffle attached to the baffle wall, and a fluid-conveyance opening disposed along the baffle wall are described. A fluid-conveyance opening is located below the top of a bypass pipe, and a second compartment is in fluid communication with the first compartment through the fluid-conveyance opening. A second compartment is adapted to incorporate a filtration cartridge. An underdrain defined at least in part by the upper and lower floor slabs of the vault is disposed below and in fluid communication with the first compartment through the bypass pipe.

The invention provides an improved airport rainwater management system. The system comprises a water falling pipeline, a rainfall monitor, a rainwater collection pool, a rainwater purification pool, arainwater treatment pool, a processor, a controller, a communication module and a background monitoring panel, wherein the rainfall monitor is arranged on the bottom of the water falling pipeline, the water falling pipeline is connected with the rainwater collection pool, the rainwater collection pool is connected with the rainwater purification pool, and the rainwater purification pool is connected with the rainwater treatment pool; and the rainfall monitor, the rainwater collection pool, the rainwater purification pool and the rainwater treatment pool are all connected with the processor, the processor is connected with the controller, and the controller is connected with the background monitoring panel through the communication module. According to the invention, the controller controls the collection of the rainwater and purifies the collected rainwater, and the purified rainwater is used for green plant irrigation in various places of an airport after being treated by the rainwater treatment pool, so that the rainwater is effectively utilized, and the flood disaster in the airport is relieved.

A storm water management system includes a flow control device that includes a float in a storage chamber responsive to changes in water level and a valve disposed between the storage chamber and a discharge. The valve includes a relatively movable valving member connected to the float and a fixed valving member. Each valving member has a through opening that receives storm water flowing between the storage chamber and the discharge. The through-openings overlap one another whereby relative displacement of the valving members caused by float movement defines a variable-sized orifice between the storage chamber and the discharge that regulates the discharge rate of storm water from the system. The shapes of the overlapping openings enable the valve to closely follow the ideal output hydrograph and maximize the discharge rate as a function of storm intensity, thereby minimizing the required volume of the storage chamber.

The invention provides an intelligent management system and method for ecological filtration of rainwater, and the system is configured with the positions, connection relationships and constitution of a filtering device, a pretreatment device, a wetland device and a discharge device, comprising a filtering hole adjusting driving unit, a filtering control unit for controlling the filtering hole adjusting driving unit and a filtering communication unit for realizing data transmission, an intelligent management terminal is arranged and realizes data interaction with the filtering device, the preprocessing device, the wetland device and the discharging device; acquiring initial data of rainwater management processing, and training to obtain a rainwater ecological filtering model; and inputting a required filtering demand or related parameters of rainwater into the rainwater ecological filtering model to obtain adjustment control parameters of the filtering device, the pretreatment device, the wetland device or the discharging device, and sending the adjustment control parameters. The size of the filtering holes of the filtering device at the rainwater inlet can be automatically adjusted according to the rainwater amount, and the rainwater inlet speed can be adjusted in a self-adaptive mode.

The invention relates to the technical field of pervious concrete pavements, in particular to a pervious concrete pavement slab system and a pavement slab rainwater collection system, , thereby solving technical problems in the background art. The pervious concrete pavement slab system comprises a cushion layer, a base layer, a leveling layer and a pervious concrete pavement slab which are sequentially arranged from bottom to top. The pervious concrete pavement slab is arranged on the upper surface of the leveling layer. The pervious concrete pavement slab comprises a pervious concrete pavement slab lower surface layer and a pervious concrete pavement slab upper surface layer; a drainage pipe is arranged at the bottom of the base layer; and a plurality of water permeable holes are formed in the pipe wall of the drainage pipe. The pervious concrete pavement slab system prepared from the solid waste material can achieve the effects of collecting and discharging rainwater, effectively supplementing underground water and relieving sharp drop of urban underground water, thereby realizing urban rainwater management and water pollution treatment effectively. The pervious concrete pavementslab system has higher economic benefits and social benefits.

The invention provides structures, methods, and assemblies for bioretention systems, including tree box filters with one or more internal bypass features incorporated into 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.