Vaults, boxes, chambers, 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. The system enhances the removal efficiency of almost any type of filtration media by increasing contact time between storm water runoff and the media, and also offers an easy and inexpensive method for serving the media, without having to remove or replace the media. A media filter can include a bottom screen, a media layer, and at least one top lid that can be opened to allow for backwashing of the media layer without removing the media layer from the filter. A 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 water purification housing capable of purifying water and a rainwater purification system using the water purification housing are provided. The water purification housing filters treated water by filling filter media in a housing body and then passing the treated water through the filter media and removes residue caught in the filter media as a result of the use of the filter media by collecting the residue in a sediment discharge container positioned at a bottom portion of the housing body. The rainwater purification system includes an element that connects and installs several water purification housings and an additional filtration element including fiber filter and UV lamp which can filter materials that cannot be filtered only by the filter media at the end of the rainwater purification system.

Systems, devices, and methods for providing nutrient removals in an up flow filtration storm water system for treating water to very high clean levels using filtration media. A filtration media supported by a screen above an angled floor in a vault allows for incoming storm water to pass into a void space above the angled floor into the screen and filtration media and then out an outlet to the vault. The filtration media can include recyclable and/or natural particles. Layers of river rocks can be placed on top of and below the filtration media. Water sprayers can further liquefy sediment and debris that fills the void space between the angled floor and the bottom of the screen. The captured debris can slide down the angled floor, where a vacuum hose from an above ground vacuum truck can remove the debris and sediment. The long lasting filtration media can be cleaned by being backwashed.

Provided is a cartridge filter using nanofiber composite fiber yarn, the cartridge filter including: a core having a plurality of holes through which a liquid passes; and a filter medium wound around the core to collect an object to be filtered contained in the liquid, wherein the filter medium comprises composite fiber yarn in which a nanofiber web which is produced by accumulating nanofibers produced by an electrospinning method is laminated to a porous nonwoven fabric, to thus provide excellent durability and improved filtration performance.

Fluid filter arrangement for a motor vehicle drive train. The filter arrangement comprises a filter housing, which has a fluid inlet and a fluid outlet, allowing fluid to flow in one flow direction from the fluid inlet to the fluid outlet. A filter insert is arranged in the filter housing and divides an interior of the filter housing into an inlet region connected to the fluid inlet and an outlet region connected to the fluid outlet. The filter insert has a filter medium for filtering fluid. The filter insert has a perforated plate having a plurality of holes. The holes are arranged ahead of the filter medium in the flow direction. The size of at least some of the holes is adapted so that fluid impinges upon the filter medium at an increased flow velocity.

A fluid treatment apparatus and a fluid treatment apparatus component include: a treatment chamber (1) having a permeable wall (13), with a fluid outlet section being formed on the permeable wall; the treatment chamber (1) being constructed as: under a working state, the fluid entering the treatment chamber moves at least part of treatment mediums (100) in a direction opposite to the direction in which the treatment mediums tend to move under a non-working state, and the moved treatment mediums are maintained to be a medium bed layer (101) adjoined to the permeable wall.

A device and method for increasing the area available for passing contaminated stormwater through a granular media. The device comprises of one or more elements of predetermined size and shape. The increased area available for flow is obtained by introducing a first media into predetermined areas of the device, introducing a second media into predetermined areas of the device, and bringing into contact the first and second media.

A purification device is provided that includes a porous container, purification media retained in the porous container, and a flow controller integral to the porous container. A purification device is also provided that includes a porous elastic container, purification media, and a flow controller. The porous elastic container has a pocket formed therein. The purification media is compressibly retained in the porous elastic container. The flow controller is elastically retained in the pocket of the porous elastic container.

An ion-exchanger includes a case member provided with a cooling liquid flow-in pipe through which cooling liquid is introduced and a cooling liquid discharge pipe through which the cooling liquid is discharged, a cartridge member to be detachably accommodated in the case member, and a number of ion-exchange resin particles sealed within the cartridge member. The cartridge member is provided with an engaging portion detachably engaging with an end portion of the case member, and the case member is provided with an engagement portion to be engaged with the engaging portion provided for the cartridge member.

Water filters which comprise a multitude of discrete filter media elements in a chamber require periodic cleaning. However, the elements tend to become adhered to one another and to the interior surface of the chamber. The invention provides a water filter for use with ponds, comprising a filter chamber for containing filter media, and a first movable cutting member provided substantially immediately adjacent the interior wall of the chamber for movement across the surface of the interior surface of the wall to break the adherence of filter media to the interior wall.