The present invention concerns a device for filtration and distribution of a gaseous phase and a liquid phase, which can be disposed upstream of a fixed catalytic bed of a reactor operating with a descending co-current of gas and liquid, comprising: a solid plate on which substantially vertical risers are fixed, said risers are open at their upper and lower ends and have openings over at least a fraction of their height; a plurality of removable baskets capable of retaining at least one filtration medium, each removable basket being defined by an ellipsoidal vertical wall or by at least three vertical lateral walls and a bottom, the vertical walls and/or the bottom being permeable to a gas and to liquid. Each basket is provided support means cooperating with a riser of the plate in order to support the basket.

A water filtration device comprising a drum housing a removable canister containing a replaceable water filter media. A pair of lifting handle/media stops, connected to the removable canister, pivotally secure the replaceable water filter media, enabling a user to lift the removable canister from the drum and remove the replaceable water filter media. The drum is located along and connected to a water circulating line comprising a water supply line and a water discharge line. Unfiltered water is circulated into the water filtration device, creating the filtered water circulating into the water discharge line to the decorative water feature thereby re-circulating the unfiltered water from the water filtration device as filtered water back through a decorative water feature to a water feature terminus. As unfiltered water is pumped from the water feature terminus, it again passes through the replaceable water filter media.

Methods, apparatuses and systems for treating liquid utilizing primary and secondary treatment mechanisms positioned on a portable sled, the primary treatment mechanism of the system being a filter bag used in conjunction with a secondary treatment mechanism including a straw bale layer positioned on a base of the sled. Liquid entering the filter bag exits the bag as filtrate which passes through the secondary treatment mechanism and flows by gravity to the environment. The system is transportable to different locations where filtering may continue utilizing the same filter bag. The filter bag is flexible and removable via a porous lift frame positioned below the filter bag.

Methods, apparatuses and systems for treating liquid utilizing primary and secondary treatment mechanisms positioned on a portable sled, the primary treatment mechanism of the system being a filter bag used in conjunction with a secondary treatment mechanism including a straw bale layer positioned on a base of the sled. Liquid entering the filter bag exits the bag as filtrate which passes through the secondary treatment mechanism and flows by gravity to the environment. The system is transportable to different locations where filtering may continue utilizing the same filter bag. The filter bag is flexible and removable via a porous lift frame positioned below the filter bag.

The present invention concerns a device for filtration and distribution of a gaseous phase and a liquid phase, which can be disposed upstream of a fixed catalytic bed of a reactor operating with a descending co-current of gas and liquid, comprising: a solid plate on which substantially vertical risers are fixed, said risers are open at their upper and lower ends and have openings over at least a fraction of their height; a plurality of removable baskets capable of retaining at least one filtration medium, each removable basket being defined by an ellipsoidal vertical wall or by at least three vertical lateral walls and a bottom, the vertical walls and/or the bottom being permeable to a gas and to liquid.

Each basket is provided support means cooperating with a riser of the plate in order to support the basket.

The present invention concerns a device for filtration and distribution of a gaseous phase and a liquid phase, which can be disposed upstream of a fixed catalytic bed of a reactor operating with a descending co-current of gas and liquid, comprising: a solid plate on which substantially vertical risers are fixed, said risers are open at their upper and lower ends and have openings over at least a fraction of their height; a plurality of removable baskets capable of retaining at least one filtration medium, each removable basket being defined by an ellipsoidal vertical wall or by at least three vertical lateral walls and a bottom, the vertical walls and/or the bottom being permeable to a gas and to liquid.

Each basket is provided support means cooperating with a riser of the plate in order to support the basket.

A local backwashing apparatus 110 for a filtering system comprises an enclosure 119 having an open lower end, positionable above a surface of filter media 92 supported by a drainage layer 96. The enclosure is connected to a mechanical member (300, FIG. 6A) configured to force the enclosure into the filter media and release the force prior to the lower end of the enclosure contacting the drainage layer. The lower end of the enclosure being brought into contact with the drainage layer through a pressure differential between the interior and exterior of the enclosure. A pneumatic system such as an air pump, is in fluid communication with the upper part 127 of the enclosure and is configured to determine an air pressure therein. A pipe system connects the upper part of the enclosure with the pneumatic system and with a discharge structure 132. A control unit is connected to the pneumatic system. Also disclosed is a method of backwashing a filtering system. The backwashing apparatus may be used to pre-treat water.

A local backwashing apparatus 110 for a filtering system comprises an enclosure 119 having an open lower end, positionable above a surface of filter media 92 supported by a drainage layer 96. The enclosure is connected to a mechanical member (300, FIG. 6A) configured to force the enclosure into the filter media and release the force prior to the lower end of the enclosure contacting the drainage layer. The lower end of the enclosure being brought into contact with the drainage layer through a pressure differential between the interior and exterior of the enclosure. A pneumatic system such as an air pump, is in fluid communication with the upper part 127 of the enclosure and is configured to determine an air pressure therein. A pipe system connects the upper part of the enclosure with the pneumatic system and with a discharge structure 132. A control unit is connected to the pneumatic system. Also disclosed is a method of backwashing a filtering system. The backwashing apparatus may be used to pre-treat water.

Devices and methods associated therewith for facilitating movement, removal and/or installation of components from treatment units (e.g., water treatment units and wastewater treatment units). The treatment unit can take the form of a granular media filter (e.g., upflow filter, downflow filter or bi-flow filter) or a sludge collection basin. One preferred device is one or more floats facilitating safe removal of components of a treatment unit. The float(s) can be operably associated with an air scour system of a water filter to remove the air scour system from a granular media filter bed. The float(s) can be operably associated with a collection grid of a sludge collection container facilitating safe removal of the collection grid from the sludge collection container. Another preferred device is a flexible piping/conduit operably connected to a pressurized air source and an air scour system to assist in removal/installation of the air scour system.

The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.