A filtration apparatus includes a tubular casing having a longitudinal axis and first and second casing ends, a plurality of partition plates positioned in the casing and sealed thereto to thereby define an intake collection chamber between a first of said partition plates and the first casing end, a discharge collection chamber between a second of said partition plates and the second casing end, and a reject collection chamber opposite the second partition plate from the second casing end, a plurality of elongated filtration membrane stacks positioned side-by-side in the casing generally parallel to the longitudinal axis, each filtration membrane stack comprising an intake end fluidly connected to the intake collection chamber, a discharge end fluidly connected to the reject collection chamber, and a permeate channel extending between the first and second ends and fluidly connected to the discharge collection chamber. The filtration apparatus also includes an intake pipe connected to the intake collection chamber, a discharge pipe connected to the discharge collection chamber, and a reject pipe connected to the reject collection chamber. Each filtration membrane stack is made of a plurality of filtration membranes which are each sealed to a corresponding hole in a corresponding partition plate, each filtration membrane having an inlet end and an outlet end and being sealed to the corresponding hole between the inlet and outlet ends, and the outlet end being spaced apart from an adjacent partition plate located closer to the second casing end.

A filtration apparatus includes a tubular casing having a longitudinal axis and first and second casing ends, a plurality of partition plates positioned in the casing and sealed thereto to thereby define an intake collection chamber between a first of said partition plates and the first casing end, a discharge collection chamber between a second of said partition plates and the second casing end, and a reject collection chamber opposite the second partition plate from the second casing end, a plurality of elongated filtration membrane stacks positioned side-by-side in the casing generally parallel to the longitudinal axis, each filtration membrane stack comprising an intake end fluidly connected to the intake collection chamber, a discharge end fluidly connected to the reject collection chamber, and a permeate channel extending between the first and second ends and fluidly connected to the discharge collection chamber. The filtration apparatus also includes an intake pipe connected to the intake collection chamber, a discharge pipe connected to the discharge collection chamber, and a reject pipe connected to the reject collection chamber. Each filtration membrane stack is made of a plurality of filtration membranes which are each sealed to a corresponding hole in a corresponding partition plate, each filtration membrane having an inlet end and an outlet end and being sealed to the corresponding hole between the inlet and outlet ends, and the outlet end being spaced apart from an adjacent partition plate located closer to the second casing end.

A method, system and device for recovering a desired nutrient from wastewater or digester effluents while separating the remaining components into various side streams which may have additional value or be suitable for inexpensive disposal due to the processing.

The inventions discloses a method for reducing fouling on the surface of a ceramic membrane or filter with a recalcitrant filtration cake thereon that is non-responsive to regular back-flushing or other physical means of removal, where the ceramic membrane or filter is subjected to steam fast-flushing by injecting steam directly in feed channel of the ceramic membrane or filter while back-flushing the ceramic membrane or filter at the same time to heat and remove fouled layer on the ceramic membrane or filter while cooling a selective layer of the ceramic membrane or filter to avoid thermal shocking of the ceramic membrane or filter, the surface is cleaned with the ceramic membrane or filter being stationary.

A membrane system including an anti-fouling layer and a method of applying an anti-fouling layer to a membrane surface are provided. In an embodiment, the surface is a microfiltration (MF) or an ultrafiltration (UF) membrane surface. The anti-fouling layer can include a stimuli responsive layer and a dynamic protective layer applied over the stimuli responsive layer that can be a coating on a surface of the membrane. The stimuli responsive polymer layer can act as an adhesive prior to coating with the dynamic protective layer to aid in adhering the dynamic protective layer to the membrane surface. The dynamic protective layer can be formed by suitable nanoparticles that can prevent adhesion of foulants directly to the membrane surface. The stimuli responsive layer can be responsive to physio-chemical stimuli to cause a release of the stimuli responsive layer and the dynamic protective layer including foulants from the membrane.

A conditioning system for a filter module is disclosed. The conditioning system may generally include an inlet, a heat exchanger, a magnetically levitated pump, a channel provided to bypass the heat exchanger, a controller, an outlet, and a base. The system may have components lined with corrosion-resistant materials. A method of conditioning a filter module is also disclosed. The method may generally include measuring TOC in a source of ultrapure water, heating the ultrapure water, rinsing a filter module with the heated water, flushing the filter module with ambient temperature water, and repeating the rinsing with heated water and flushing with ambient temperature water. A method of facilitating conditioning of the filter module is also disclosed. The method may generally include providing a portable filter module conditioning system and providing instructions for installation or use.

A method for controlling scale and/or fouling on a separation membrane. The method comprises forming a thermally, physically, electrically or chemically degradable coating layer on the membrane; using the membrane under conditions that result in the formation of scale and/or fouling species on the membrane; and removing at least some of the scale and/or fouling species from the membrane by thermally, physically, electrically or chemically degrading the coating layer.

Disclosed herein is a water purification apparatus capable of being cleaned at a point of care, and methods for cleaning the water purification apparatus at the point of care. The water purification apparatus and the methods provide an efficient use of a heater for heat disinfection the water purification apparatus, e.g. by recirculating heated fluid to further heat the fluid. Several different cleaning programs are provided that may be utilized for cleaning different parts of the water purification apparatus.

The invention concerns an underwater water treatment unit which has specific cleaning means which are suitable for cleaning filtration membranes in the unconventional conditions associated with use at great or very great depths, as well as a method for cleaning the membrane of the underwater water treatment unit.

The present disclosure relates to a microporous hollow fiber filter membrane having a large inner diameter and a thin wall. The fiber can be used for sterile filtration of liquids or removal of particles from liquids. The disclosure further relates to a method for producing the membrane and a filter device comprising the membrane.