A liquid treatment system is provided having a vault that contains a treatment chamber and an outflow chamber. The treatment chamber may have a filtration media layer containing media that treats liquid as it descends through the filtration media layer, where it will accumulate in a porous layer or open space. The liquid will then be directed through the plurality of pipes to the outflow chamber, where the treated liquid is further directed to outside the system. Accumulated debris settled at the bottom of the treatment chamber may be flushed out by a spray bar.

A fluidic coupler for fluidically communicating a hose with a trench drain in a support surface comprises a series of walls arranged to form a cavity and arranged for insertion into the trench drain, and a hose coupler supported on one of the walls for fluidically connecting a hose so that liquid discharged therefrom is released into the cavity. The cavity is open at the bottom of the fluidic coupler so as to release the liquid to the trench drain. The fluidic coupler includes stabilizing feet supported on opposite walls which are parallel to sidewalls of the trench drain. The feet include a pair of distinct feet located at spaced positions on a carrying one of the opposite walls, and on either side of the hose coupler.

A fluidic coupler for fluidically communicating a hose with a trench drain in a support surface comprises a series of walls arranged to form a cavity and arranged for insertion into the trench drain, and a hose coupler supported on one of the walls for fluidically connecting a hose so that liquid discharged therefrom is released into the cavity. The cavity is open at the bottom of the fluidic coupler so as to release the liquid to the trench drain. The fluidic coupler includes stabilizing feet supported on opposite walls which are parallel to sidewalls of the trench drain. The feet include a pair of distinct feet located at spaced positions on a carrying one of the opposite walls, and on either side of the hose coupler.

A liquid treatment system is provided having a vault that contains a treatment chamber and an outflow chamber. The treatment chamber may have a filtration media layer containing media that treats liquid as it descends through the filtration media layer, where it will accumulate in a porous layer or open space. The liquid will then be directed through the plurality of pipes to the outflow chamber, where the treated liquid is further directed to outside the system. Accumulated debris settled at the bottom of the treatment chamber may be flushed out by a spray bar.

A road gutter having a dust collection function, consisting of a gutter groove (11) and a cover stopper (10) that covers the gutter groove (11). The side surface of the cover stopper (10) is “T”-shaped. Plugs (10b) of the cover stopper (10) are embedded in the gutter groove (11), and a shoulder (10c) of the cover stopper (10) is supported on platforms (11c) formed by the left and right walls of the gutter groove (11) to bear the weight of the whole cover stopper (10). The front surface of the cover stopper (10) is inverted “U”-shaped, and forms a dust absorption channel (10a) with a solid part of the gutter groove (11). The dust absorption channel (10a) communicates the gutter groove (11) with an external space. Road dust and mess enter the gutter groove (11) from the external space by means of the dust absorption channel (10a) under the drive of an external force, and fall to the bottom of the gutter groove (11).

A liquid treatment system is provided having a vault that contains a treatment chamber and an outflow chamber. The treatment chamber may have a filtration media layer containing media that treats liquid as it descends through the filtration media layer, where it will accumulate in a porous layer or open space. The liquid will then be directed through the plurality of pipes to the outflow chamber, where the treated liquid is further directed to outside the system. Accumulated debris settled at the bottom of the treatment chamber may be flushed out by a spray bar.

Stormwater pollution prevention systems, vaults, boxes, and methods of treatment systems to capture pollutants from storm water runoff and prevent the conveyance of these pollutants from entering a receiving water body or landscape area. The systems can be part of a local permanent storm water drainage infrastructure, where the system combines both drainage conveyance, multi-level treatment techniques, variable hydraulic capabilities, and easy and inexpensive methods for servicing the systems. The systems can use cartridges, each having either a treatment media or treatment polymer inside, wherein the cartridges can be serviced without requiring anyone to enter into a treatment vault/box.

A liquid treatment system is provided having a vault that contains a treatment chamber and an outflow chamber. The treatment chamber may have a filtration media layer containing media that treats liquid as it descends through the filtration media layer, where it will accumulate in a porous layer or open space. The liquid will then be directed through the plurality of pipes to the outflow chamber, where the treated liquid is further directed to outside the system. Accumulated debris settled at the bottom of the treatment chamber may be flushed out by a spray bar.

Vaults, boxes, systems, and treatment methods to capture pollutants from stormwater runoff and prevent conveyance of the pollutants from entering a receiving water body or landscape area, which can be part of a permanent stormwater drainage infrastructure. A polymer system with at least one polymer log can be used to treat stormwater runoff and any stormwater conveyance, such as a pipe, box culvert, ditchline, and the like. Once stormwater has been dosed with polymers, the treatment easily retains the pollutants, and the one or more polymer logs continue to enhance water quality, while providing an easy method for servicing polymer logs without requiring service technicians to enter the vault. A hydroslide servicing system can include pivotal spray heads to pivot to parallel positions over a sloped floor to flush debris toward easy to reach locations to be vacuumed, and vertical spray heads which can break up debris bridges.

A hydraulic separation and collection system applicable to linear street curb-inlet type drainage-chambers, independent or connected to a storm drainage network. The FIRST FLUSH COLLECTOR is a pollutant separation and collection apparatus that can be integrated into an existing storm drain network, or be retrofitted as a component into a new or existing curb-inlet type drainage-chamber. The outfall from the FIRST FLUSH COLLECTOR can be redirected to a conventional stormwater pollutant BMP, or be diverted to a sanitary sewer, storm drain, or combined collection system for treatment downstream. The apparatus is envisaged as a simple, easy to install prefabricated-kit utilizing a basic build-in-place separation and collection apparatus. The apparatus can be readily adapted to the needs of a given curb-inlet type drainage-chamber with minor alterations to the chambers, or to the connected existing storm drainage network. The uniquely adaptative capability of the apparatus enables selective structuring based on the retrofitting requirements of a curb-inlet type drainage-chamber. The system is designed to handle a variety of ecosystem-contaminants, ranging from basic street-refuse and floatable objects, to coarse sediment, finer silt, and comparatively minute environmentally-hazardous petrochemicals, heavy-metals, phosphates, and nitrates. The system is design to refuse floatables and debris which will continue to the existing curb-inlet type drainage-chamber. Other pollutants contained in the first flush are readily collected from the apparatus and transferred to a selected outfall facility. The system has no moving or mechanical components and is designed to function on fluid hydraulic principles.