A method for treating wastewater in a wastewater treatment plant includes passing the wastewater passes through a rake system and, thereafter, a sand trap to separate from the wastewater, solids having different particle sizes. A screening device screens the wastewater emerging from the sand trap to yield a primary sludge that fails to pass through the screening device and a suspension passing through the screening device. The suspension is fed to at least one further treatment stage, and the primary sludge is thickened with the aid of at least one thickener. The thickened primary sludge is fed to one or several further treatment stages. Moreover, a wastewater treatment plant for treating wastewater is described.

A method for treating wastewater in a wastewater treatment plant includes passing the wastewater passes through a rake system and, thereafter, a sand trap to separate from the wastewater, solids having different particle sizes. A screening device screens the wastewater emerging from the sand trap to yield a primary sludge that fails to pass through the screening device and a suspension passing through the screening device. The suspension is fed to at least one further treatment stage, and the primary sludge is thickened with the aid of at least one thickener. The thickened primary sludge is fed to one or several further treatment stages. Moreover, a wastewater treatment plant for treating wastewater is described.

This infiltration intake system for a revetment wall includes a structural body, set on an outer wall surface of a revetment wall, including a filter storage portion, a filter stored in the filter storage portion of the structural body, and a water guide portion guiding treated water passing through the filter toward the side of an inner wall surface of the revetment wall.

This infiltration intake system for a revetment wall includes a structural body, set on an outer wall surface of a revetment wall, including a filter storage portion, a filter stored in the filter storage portion of the structural body, and a water guide portion guiding treated water passing through the filter toward the side of an inner wall surface of the revetment wall.

The disclosure extends to systems, methods, and devices for mixing a fluid. The system comprises a tank conduit suspended in a tank for receiving a mixture comprising a liquid, wherein the tank holds the mixture. The system comprises a rigid casing configured to surround the tank and a pump attached to the rigid casing. The system includes a suction inlet and a discharge outlet attached to the pump, wherein the pump creates a negative pressure that draws the mixture into the pump through the suction inlet and the pump creates a positive pressure that dispels the mixture out of the pump through the discharge outlet.

The disclosure extends to systems, methods, and devices for mixing a fluid. The system comprises a tank conduit suspended in a tank for receiving a mixture comprising a liquid, wherein the tank holds the mixture. The system comprises a rigid casing configured to surround the tank and a pump attached to the rigid casing. The system includes a suction inlet and a discharge outlet attached to the pump, wherein the pump creates a negative pressure that draws the mixture into the pump through the suction inlet and the pump creates a positive pressure that dispels the mixture out of the pump through the discharge outlet.

Vaults, boxes, systems, 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, which is designed to be a part of a local permanent storm water drainage infrastructure. A single treatment box, vault and system combines both drainage conveyance, multi-level treatment techniques, variable hydraulic capabilities, and easy and inexpensive methods for servicing the system. A flow spreader can split incoming water to pass into dual screen filtration systems. The system can include components selected from a shelf beneath the spreader, at least one baffle, skimmer, deflectors, media filtration and water pressure lines with spray heads for cleaning debris on a sloped floor.

Vaults, boxes, systems, 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, which is designed to be a part of a local permanent storm water drainage infrastructure. A single treatment box, vault and system combines both drainage conveyance, multi-level treatment techniques, variable hydraulic capabilities, and easy and inexpensive methods for servicing the system. A flow spreader can split incoming water to pass into dual screen filtration systems. The system can include components selected from a shelf beneath the spreader, at least one baffle, skimmer, deflectors, media filtration and water pressure lines with spray heads for cleaning debris on a sloped floor.

There is disclosed a water treatment apparatus for treating stormwater, the water treatment apparatus comprising a volume of filter media, a baffle and an inlet conduit. The baffle extends upwards from the volume of filter media and defines a pre-treatment zone on one side of the baffle and a treatment zone on an opposing side of the baffle. The inlet conduit opens into the pre-treatment zone and is separated from the treatment zone by the baffle. The baffle is configured to regulate a flow of stormwater received via the inlet conduit by controlling the passage of stormwater from the pre-treatment zone to the treatment zone.

There is disclosed a water treatment apparatus for treating stormwater, the water treatment apparatus comprising a volume of filter media, a baffle and an inlet conduit. The baffle extends upwards from the volume of filter media and defines a pre-treatment zone on one side of the baffle and a treatment zone on an opposing side of the baffle. The inlet conduit opens into the pre-treatment zone and is separated from the treatment zone by the baffle. The baffle is configured to regulate a flow of stormwater received via the inlet conduit by controlling the passage of stormwater from the pre-treatment zone to the treatment zone.