Class / Patent application number | Description | Number of patent applications / Date published |
210747200 | Stormwater treatment | 26 |
20120031851 | STORM DRAIN BAFFLE TO DECREASE SEDIMENT WASHOUT - Some examples includes a flow-through stormwater sump having a bottom and defining an inlet opening, an outlet opening and a top access opening, an inlet conduit coupled to the flow-through stormwater sump at the inlet opening, an outlet conduit coupled to the flow-through stormwater sump at the outlet opening and a flow-path baffle disposed in the stormwater sump, the flow-path baffle being substantially planar and defining a plurality of openings, the flow-path baffle oriented such that a centerline of the inlet conduit intersects a major plane of the baffle at a point and a centerline of the outlet conduit intersects the major plane at a further point, the flow-path baffle disposed in the stormwater sump in a direct impingement inlet flow-path of the inlet conduit and a direct impingement outlet back-flow-path of the outlet conduit. | 02-09-2012 |
20120080388 | Waste water storage and treatment system and method - A multi-chamber basin is sized to collect excess waste water exceeding the processing capacity of a sewage system. In order to disinfect the waste water exceeding the basin capacity, disinfectant is added at a point in the system after the first basin. After the rain event is over and there is excess sewage treatment capacity, the sewage treatment in the multi-chamber basin is returned to the sewage system. By not disinfecting the waste water in the first basin chamber, the overall disinfectant usage can be minimized. | 04-05-2012 |
20120181235 | RAINWATER TREATMENT UNIT - The present invention is directed to an assembly and a method of treating rainwater to produce potable water. A compact and easy-to-install apparatus is achievable as a result of a simple, yet highly effective sanitisation method. Rainwater is entrained with a gas, and the entrained rainwater is irradiated with an ultraviolet (UV) light to fully sanitise the rainwater. The UV light is used during the irradiation of the entrained water and is also used to form a gaseous bactericide which is used to entrain the rainwater. None of the disadvantages of the prior art systems apply to any rainwater treatment systems which use this method. All of the connections between the component parts may be already provided for in this rainwater treatment unit, and consequently both installation and maintenance costs will be significantly reduced in comparison to the rainwater treatment systems which are known from the prior art. | 07-19-2012 |
20120267319 | STORMWATER TREATMENT SYSTEM - A stormwater treatment system includes water treatment media that defines a helical flow path within a conduit. The water treatment media may include a plurality of helical water treatment media components that are constructed and arranged to seal against an inside surface of the conduit. The individual helical water treatment media components may be installed in situ within the conduit when the conduit is positioned within a chamber having an access opening, and periodically removed and replaced by passing the components to the access opening. The components further may have a flexible frame, which allows the water treatment media to dynamically adjust to swelling of the filtration media and other forces that may occur during use. The performance of the system may be adjusted by adjusting the helical pitch of the helical water treatment media components. | 10-25-2012 |
20130056424 | Horizontal Flow Biofilter System and Method of Use Thereof - A horizontal flow water treatment method and wetland biofilter apparatus provides a chamber with impermeable outer walls spaced away from permeable interior walls of a media filtration bed such that a catch basin is formed between the outer walls and the interior walls. The catch basin creates an open area around the perimeter of the interior walls for influent water to fill within the open area on all sides before penetrating the filtration media, providing a large surface area for influent water to interact with the media filtration bed. The influent water enters the catch basin in a horizontal flow path to provide for pre-settling of particulates before making contact with the filtration media. The biofilter design increases the available surface area of the media filtration bed by up to four times for a given volume of water, and thereby minimizes the loading or infiltration rate on the media filtration bed. | 03-07-2013 |
20130068699 | CONSTRUCTION SITE WATER TREATMENT SYSTEM AND METHODS - A portable fluid treatment apparatus includes a container with an interior wall between the inlet pipe and the outlet pipe which defines a bottom space between the bottom of the wall and the bottom interior surface of the container. A series of collectors in the container direct the flow of the inlet fluid and promote sedimentation from the fluid. The inlet fluid flows under the wall and up to a discharge pipe equipped with a vent. Multiple sedimentation units are connected together in series and mounted on a trailer for transport to a construction site. | 03-21-2013 |
20130075343 | SELF-CONTAINED IRRIGATION POLISHING SYSTEM - A self-contained water polishing system includes at least a first containment basin that has an inlet for inflow of water from a collection source and contains calcium carbonate for treatment of water flowing through the system; at least a first polishing basin in communication with the containment basin and that contains at least a first pollutant collection substrate for treatment of water flowing through the system; and a vacuum pumping system in fluid communication with the containment and polishing basins that draws water through the polishing system. | 03-28-2013 |
20130228527 | FILTER FOR POLLUTED WATER - An apparatus for filtering polluted water in drainage systems. The apparatus comprising a collection chamber for collecting the water, having a first end, a second end opposite the first end, and two sides between the ends. An inlet is disposed at or near the first end for the water to enter the collection chamber and a filter screen is disposed in the sides through which the water exits the collection chamber. A deflector is disposed at or near the second end of the collection chamber to deflect downwardly the water flowing towards it. | 09-05-2013 |
20140001127 | PORTABLE STORMWATER TREATMENT SYSTEM AND METHOD | 01-02-2014 |
20140144850 | SYSTEM AND METHOD FOR PURIFYING RAINFALL RUNOFF - A system for purifying rainfall runoff including a bar screen; a collection and diversion device; a filter channel; a grass ditch; and a water storage tank. The bar screen is disposed around the collection and diversion device for preliminarily filtering the road rainfall runoff. The collection and diversion device collects the road rainfall runoff and diverts early rainfall runoff to the filter channel, after the filter channel is full, later rainfall runoff is directly diverted to the grass ditch through open channels. The grass ditch includes a percolation bed capable of filtering the early and later rainfall runoff. The water storage tank is connected to the grass ditch via a guiding pipe, to receive the rainfall runoff effusing out of the grass ditch. Part of the rainfall runoff received by the water storage is transported to the percolation bed by a return conduit. | 05-29-2014 |
210747300 | Filtering | 16 |
20110155672 | Surface Water Filtration Device - A plate is positioned across an inlet to a catch basin and a filter strainer is inserted through an opening through the plate and into the basin. A tertiary filter completely surrounds the strainer and is suspended below the plate. Surface water flows through a primary grate that covers the catch basin, through the strainer and through the tertiary filter. The tertiary filter comprising fibrous filter media retained in a non-woven mesh fabric enclosure and the filter media is selected according to the type of contaminants that are to be removed. | 06-30-2011 |
20110253641 | Filter Sleeve for Enabling Waste Water Discharge Directly into the Environment - A filter sleeve is fabricated from a variety of media selected to preferentially remove particulates and specific contaminants from water or other liquids. The layers of the filter sleeve may be configured to remove 1-micron particulates, while another layer or layers may be configured to remove a range of petroleum hydrocarbons, fats, oils, and greases, while yet another layer may be configured to remove metals, and yet another layer could be configured to remove bacteria, algae, mold, and fungus. Filter sleeves that are configured to remove different particulate sizes and contaminants can be used simultaneously by placing the filter sleeves inside one another to accrue the capabilities of several individual filter sleeves as one unit. The filter sleeve can be used to remove particulates and hydrocarbons from waste water accumulated in underground vaults, enabling such waste water to be discharged directly into the ambient environment. | 10-20-2011 |
20120097617 | STORM WATER FILTER SYSTEMS - A filter system for a storm drain having an inlet is disclosed. The filter system may be configured to receive storm water having debris and to separate at least a portion of the debris from the storm water to produce filtered storm water. The filter system may include a pervious paver having a feed side and a permeate side, the pervious paver being configured to receive storm water on the feed side and to retain at least a portion of the debris on the feed side. The filtered storm water may be formed from the storm water that passes from the feed side to the permeate side. The filter system may additionally include a frame assembly configured to support the pervious paver adjacent to the inlet. | 04-26-2012 |
20120217205 | Storm Water Pretreatment Chamber - A storm water pretreatment chamber is provided. The storm water pretreatment chamber includes; one or more filter sidewalls; one or more optional water-impermeable sidewalls; one or more optional chamber grates; and one or more catch rails. Methods of treating storm water are also provided. | 08-30-2012 |
20120228234 | Filter Adapted for use in a Road Gully or Water Course | 09-13-2012 |
20120298590 | FLUID FILTER SYSTEM AND RELATED METHOD - A system includes a tank with a lower chamber spaced from an outlet or upper chamber by a confinement deck. The deck includes one or more sockets for receiving one or more filter units. The lower chamber of the tank acts as a pretreatment sump to remove floating and nonfloating particulates, reducing the load on the filter units. The filter units are configured for radial and/or upward flow of the fluid from the lower chamber. The filter units may be removed for ease of tank maintenance and replacement of filters. | 11-29-2012 |
20130087509 | FILTRATION SYSTEM AND METHOD FOR REMOVING SUSPENDED SOLIDS AND AFFILIATED POLLUTANTS FROM STORMWATER RUNOFF USING A GEOSYNTHETIC FILTER - A filtration system and method are provided for removing suspended solids and other affiliated pollutants from stormwater runoff and any other contaminated water. The filtration system and method utilize a filter having a geosynthetic material. By improving or replacing a conventional filtration system, such as a sand filtration system, with a geosynthetic material, the removal efficiency of suspended solids and affiliated pollutants is maintained or improved and the lifespan of the filtration system is lengthened due to simpler cleaning processes and a reduced need for material replacements. The filter can be a retrofit filter for fitting to existing storm drains for removing suspended solids and affiliated pollutants. | 04-11-2013 |
20130233806 | DEVICE AND A METHOD FOR FILTERING STORMWATER - A device for filtering stormwater inside a storm drain includes a filter unit and a floating carrier for carrying the filter unit. The filter unit includes a bottom portion and a top portion. The carrier includes an axially extending recess for receiving the bottom portion of the filter unit, so that at least a part of the bottom portion of the filter unit is arranged below a surface of the stormwater inside the storm drain when the device is arranged therein. Through apertures extend radially from an outer surface of the carrier to the recess, so that stormwater at the surface can pass through the apertures and reach the bottom portion of the filter unit. Also a method for filtering stormwater inside a storm drain is disclosed. | 09-12-2013 |
20130299435 | REFUSE REMOVAL SYSTEMS AND METHODS OF USE - Described herein are refuse collection systems for removing, collecting and extracting refuse from water run-off. | 11-14-2013 |
20130313205 | Storm Water Pretreatment Chamber - A storm water pretreatment chamber is provided. The storm water pretreatment chamber includes; one or more filter sidewalls; one or more optional water-impermeable sidewalls; one or more optional chamber grates; and one or more catch rails. Methods of treating storm water are also provided. | 11-28-2013 |
20140042103 | Storm Water Filtration System Using Box Culverts - An apparatus and method for use in conjunction with box culverts to collect and filter or otherwise treat dirty or polluted storm water runoff or other fluid is disclosed. One or more filter devices with filter media is used in connection with a box culvert. One or more internal bypass assemblies is disposed along a vertical surface in the box culvert. One or more concrete slabs is installed within the box culvert and forms a false floor below the filter devices. The false floor provides an annular space through which fluid can bypass the filter devices and be released to a drainage system. | 02-13-2014 |
20140054236 | Gate strainer that fits into a gate valve curb box - A gate valve curb box strainer collects debris introduced through a street level cover, minimizing debris build up in the gate valve access pipe of the curb box. Water passes through the curb box strainer, while the strainer catches debris that naturally builds up over time via the street level cover. When a worker removes the cover to exercise the valve, he need only lift the gate strainer out of the access pipe and shake the debris out of it. There is no need to take extra time digging out or vacuuming out the debris. In an emergency situation such as accessing the valve for a fire hydrant or during a water/sewer main break, this could save valuable time. After the valve has been exercised, the empty gate valve curb box strainer is dropped back in place prior to covering the gate valve curb box with the street level cover. | 02-27-2014 |
20140116958 | STORMWATER TREATMENT SYSTEM - A stormwater treatment system includes water treatment media that defines a helical flow path within a conduit. The water treatment media may include a plurality of helical water treatment media components that are constructed and arranged to seal against an inside surface of the conduit. The individual helical water treatment media components may be installed in situ within the conduit when the conduit is positioned within a chamber having an access opening, and periodically removed and replaced by passing the components to the access opening. The components further may have a flexible frame, which allows the water treatment media to dynamically adjust to swelling of the filtration media and other forces that may occur during use. The performance of the system may be adjusted by adjusting the helical pitch of the helical water treatment media components. | 05-01-2014 |
20140246379 | Apparatus for Suspending Filter in Manhole and Method for On-Route Decanting of Storm Drain Water - An expansion ring has multiple adjustable expansion joints and plural bolts around the periphery of the ring that have pointed tips that bear into the sides of an existing manhole. The combination of the expansion joints and bolts allows the expansion ring to be securely affixed in the manhole. A filter basket assembly is suspended from the expansion ring into the manhole. Plural expansion rings with filter basket assemblies are strategically located along a clean-out route so that a full Vactor truck or sweeper may be emptied—decanted—into the filter basket assemblies on-route rather than at a traditional treatment plants. | 09-04-2014 |
20140299553 | FILTER FOR REMOVING SEDIMENT FROM WATER - A system for removing sediment from water is disclosed. The exemplary embodiments described herein disclose a system comprising a filter chamber, having a deck positioned inside to divide it into an upper chamber and a lower chamber. The deck may have a plurality of holes to hold filtration elements and also may have a ridge or a skirt or both. The filtration elements may be filter cartridges with multiple elongated filter elements that extend down into the lower chamber. | 10-09-2014 |
20160047114 | CATCH BASIN GRATE - Disclosed herein are catch basin grate covers comprising a frame; a grate; a heating element in thermal communication with the grate cover; and a power source in electric communication with the heating element. Also disclosed are catch basin grate covers comprising a frame; a grate; means for heating the grate cover; and means for supplying power to the means for heating. Also disclosed are methods of preventing the clogging of a catch basin grate cover due to ice, the method comprising applying electricity to the heating element of the above grate cover, whereby the resulting heat from the heat element causes the ice to thaw, thereby unclogging the catch basin grate cover. | 02-18-2016 |