The invention relates to a device for dispensing an aqueous liquid through an interface membrane made partially hydrophilic and partially hydrophobic, made so that when in operation, during each operation of dispensing a metered amount of liquid, the streams of air and liquid flow alternately in a capillary channel (18) downstream from the membrane. Said interface membrane (7) is made of a filtering material which includes biocidal metal cations in the body thereof. Said device comprises a porous insert (8), which is permeable both to liquid and to air, which is arranged upstream from the membrane in the path of the fluids and which is made of a material including sites with negative charges capable of attracting biocidal metal cations from said membrane.

Disclosed is a natural compound sweetener, comprising mogroside V, rebaudioside A, natural tea theanine and dietary fibre. The method for preparing the sweetener comprises the steps of: (1) dissolution, filtration, concentration and sterilization: dissolving the mogroside V, rebaudioside A, natural tea theanine and dietary fibre in water, filtering, concentrating in a vacuum, and sterilizing to obtain a sterilized solution; and (2) paste-collection, drying and granulation: carrying out paste-collection on the sterilized solution obtained in the step (1), vacuum drying the collected liquid paste, and drying and then granulating the dry powder to obtain the sweetener.

A process for concentrating a maple sap or sweet vegetal water solution is provided. The process comprises collecting the solution in a tank at temperature T1, wherein T1 is between 4° C. and 10° C.; concentrating the solution by means of a reverse osmosis concentrator to produce a high Brix solution of about 15 to about 40 Brix; heating the high Brix solution of about 15 to about 40 Brix to temperature T2, wherein T2 is between 40° C. and 85° C.; and evaporating the high Brix solution by means of a vacuum evaporator at temperature T3 to produce the concentrated product of about 60 to about 70 Brix, wherein T3 is between 55° C. and 80° C. A system for concentrating a maple sap or sweet vegetal water solution is provided, as well as a concentrated product produced by the process of the present invention.

A method for preparing a filtered beverage includes filtering a raw beverage using a cross-flow ultrafiltration device to produce a solids fraction and a liquid fraction; heating the solids fraction to a temperature of 60° C. or greater to produce a pasteurized solids fraction; microfiltering the liquid fraction through a microfilter having a size cut-off of 1 μm or smaller to produce a microfiltered liquid fraction; and combining the pasteurized solids fraction and the microfiltered liquid fraction to result in the filtered beverage.

The embodiments disclose a method including harvesting fresh bamboo leaves from an organic certified bamboo forest, using hot air to sterilize and dry bamboo leaves, shredding and packing the dry bamboo leaves, mixing sterilized water steam and the shredded dry bamboo leaves for extracting the dry bamboo leaves essence into a bamboo leaf condensate, filtering the bamboo leaf condensate through sterile filters and devices, mixing in purified water and additives to the filtered bamboo leaf condensate for creating bamboo leaf extract based products for human consumption and use, and packaging the bamboo leaf extract based products including bottled beverages, cosmetics, pharmaceuticals, and foods, food additives and dietary supplements.

In order to improve the lifespan of the semi-permeable membrane or the yield of the reverse osmosis system in the treatment of drinking water by means of reverse osmosis, the invention provides a device for treating drinking water with at least one reverse osmosis vessel which is divided into at least two chambers by at least one semi-permeable membrane, wherein a first chamber has an inlet for the water to be treated and an outlet for the concentrate, and the second chamber has an outlet for the treated water, wherein the device comprises at least one pressure vessel which is connected to the outlet for the treated water via a line, wherein the device is designed in such a way that, in an idle state, treated water flows out of the pressure vessel, through the semi-permeable membrane and into the first chamber.

Dumping a reverse osmosis (RO) reject stream from a wastewater treatment and reclamation plant (WWTRP) into the sea directly destroys aquatic life and indirectly affects public health. This triggers solving the problem by methods and systems provided herein. One embodiment begins with utilizing two types of waste; one is the RO reject stream in its entirety, and the other is letdown steam from once-through-steam-generators (OTSGs) or steam from a standalone OTSG fueled by co-produced sour gas. It ends with thermally sterilizing toxicity and isolating it by the alkalinity content of the RO reject stream itself, combating sulfate scale and recovering it as a useful product, and producing distillate for heavy oil recovery by steam injection and de-scaled brine for improved oil recovery by water flooding. The vehicle to attain this set of solutions is a recycle-brine multi-stage flash (RB-MSF) desalination train with two modified flashing stages.

The present invention relates in general to the field of water kiosks, and more specifically, to an emergency water filtration kiosk and method of delivering clean and safe water using the emergency water filtration kiosk. One aspect of the emergency water filtration kiosk and method of use may include a four-stage water filtration system to better purify, clean, and improve the taste of water. The emergency water filtration kiosk and method of use may further include a turn-key variable pump system that is configured to supply water to the emergency water filtration kiosk via three alternative power sources. The purpose of the invention is to provide a self-contained and rapidly deployable emergency response water filtration kiosk and method of use that delivers clean and safe drinking water to people in need after a natural disaster. An additional purpose of the invention is to provide an emergency water filtration kiosk and method of use that offers a wide variety of on-board integrated pumping solutions to supply water to the filtration kiosk under any power condition.

A water purifier and a filter for the water purifier are provided. The water purifier includes a raw water flow path formed to bring in raw water from the outside, a purified water flow path connected to the raw water flow path for the raw water to flow in a first direction, a filter located in the purified water flow path to filter the raw water, a bypass flow path branched from the purified water flow path for the raw water to bypass the filter and connected to the purified water flow path on a downstream side of the filter in the first direction, a washing flow path branched from the bypass flow path and connected to the purified water flow path on a downstream side of the filter in the first direction, and a drain flow path connected to the filter to guide the raw water flowing into the filter to a second direction. The filter includes a raw water inlet through which raw water flowing in the first direction is introduced, a purified water outlet through which purified water filtered is released, and a drain outlet through which wash water having washed the filter is discharged.

A water treatment apparatus is provided. The water treatment apparatus includes a filtering unit including a water filter filtering raw water, a sterilizing water generator producing sterilizing water from purified water filtered by at least a portion of the filtering unit, and a discharge member through which the purified water, filtered by the filtering unit, is discharged externally. The sterilizing water produced in the sterilizing water generator sterilizes the discharge member and at least a portion of a flow path connected to the discharge member.