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.

Locally backwashing portions of filter media allows a simple and effective design of intake and pretreatment units, as well as their integration. An enclosure is used to limit portions of filter media and backwash them locally by suction, utilizing filtered water from adjacent filter media as the back wash water. Wastewater is produced at small amounts that allows efficient sludge treatment. This design enables water pretreatment at the intake unit, simplifying overall plant design and preventing damage to organisms living outside the intake unit.

Locally backwashing portions of filter media allows a simple and effective design of intake and pretreatment units, as well as their integration. An enclosure is used to limit portions of filter media and backwash them locally by suction, utilizing filtered water from adjacent filter media as the back wash water. Wastewater is produced at small amounts that allows efficient sludge treatment. This design enables water pretreatment at the intake unit, simplifying overall plant design and preventing damage to organisms living outside the intake unit.

A device for treating water for household use designed so as to be temporarily coupled to the mouth of a faucet to allow the continuous supply of treated water and the water to be treated being guided radially through the inside thereof. The device is formed by means of coupling a cylindrical receptacle to an upper closing element, where the receptacle supports, on the inside thereof, a paddle blind on which a hollow, cylindrical-shaped membrane is supported, where the membrane accumulates a filter bed therein. The inner wall of the receptacle is provided with ribs that extend longitudinally so as to define channels through which the treated water flows. The upper closing element is provided with grooves for the inflow of water to be treated, on which sealing means are supported for the coupling to the faucet.

A device for treating water for household use designed so as to be temporarily coupled to the mouth of a faucet to allow the continuous supply of treated water and the water to be treated being guided radially through the inside thereof. The device is formed by means of coupling a cylindrical receptacle to an upper closing element, where the receptacle supports, on the inside thereof, a paddle blind on which a hollow, cylindrical-shaped membrane is supported, where the membrane accumulates a filter bed therein. The inner wall of the receptacle is provided with ribs that extend longitudinally so as to define channels through which the treated water flows. The upper closing element is provided with grooves for the inflow of water to be treated, on which sealing means are supported for the coupling to the faucet.

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.

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.

A hybrid filtration sock comprises a mesh tube filled with a blended filler comprising 60%-90% fibrous volumizing filler and 10%-40% woody organic filler. The fibrous volumizing filler 12 includes straw, grasses, pine straw, corn stalks, natural fibers and weeds and combinations thereof. The woody organic filler is ground or chipped wood based material from land clearing, yard waste, pallets and clean wood debris or clean wood scraps, comprising a PH of between 5.0 and 8.0, with a particle size wherein 99% passes a 2 in (50 mm) sieve and a maximum of 43% passes a in (9.5 mm) sieve, and <3.5% by dry weight of inert or foreign man made materials.

A hybrid filtration sock comprises a mesh tube filled with a blended filler comprising 60%-90% fibrous volumizing filler and 10%-40% woody organic filler. The fibrous volumizing filler 12 includes straw, grasses, pine straw, corn stalks, natural fibers and weeds and combinations thereof. The woody organic filler is ground or chipped wood based material from land clearing, yard waste, pallets and clean wood debris or clean wood scraps, comprising a PH of between 5.0 and 8.0, with a particle size wherein 99% passes a 2 in (50 mm) sieve and a maximum of 43% passes a in (9.5 mm) sieve, and <3.5% by dry weight of inert or foreign man made materials.

An underdrain assembly in a wastewater filtration unit for providing even distribution of liquid and gas during filter backwashing operations and the uniform collection of filtered water during the normal operation of the filtration unit is provided. The underdrain assembly is provided with a flat, concrete plate with a perimeter matching the shape of the filtration unit. The concrete plate has a plurality of holes with individual PEX tubes in each hole extending from the concrete plate top surface through and protruding below the plate.