A method for preparing a Luo Han Guo sweetening composition from Siraitia grosvenorii and a use thereof. The method for extracting the sweetening composition from Siraitia grosvenorii preferably includes the followings: accelerating ripening of immature Siraitia grosvenorii, and performing juicing, extraction with pure water, removal of impurities, concentration and purification to obtain the sweetening composition. Further, the present application relates to a compound sweetener containing the sweetening composition, which can be widely used in foodstuffs, beverages, healthcare products, and daily chemicals. The contents of mogroside III, mogroside IIe, and the like in the Luo Han Guo sweetening composition are controlled so as to improve the flavor thereof, and a production process for the sweetening composition uses only pure water, without use of organic solvents such as ethanol, to ensure a greener and healthier production process.

A method for reusing wastewater by using reverse osmosis, according to the present invention, provides a method for preparing pure water through a primary reverse osmosis step, a secondary reverse osmosis step, a foam generation step, and a reverse osmosis membrane washing step. The present invention prepares pure water through several reverse osmosis steps, thereby enabling prepared pure water to be immediately used as industrial water, and washes a reverse osmosis membrane with foam, thereby improving washing efficiency and saving on maintenance costs of a wastewater reuse apparatus.

Various beverage preparation methods are disclosed. The beverage preparation method can include purifying a first portion of an extract with reverse osmosis. The method can further include concentrating a second portion of an extract with freeze concentration, the first portion of the extract being separate from the second portion of the extract. The method can further include spray drying the first portion of the extract and the second portion of the extract to produce dried particles. The ratio of the first portion of the extract and the second portion of the extract can be at least 3:1.

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.

Disclosed is a method for the manufacture of a spray-dried powder consisting essentially of 3-fucosyllactose, the spray-dried powder, its use for the manufacture of nutritional compositions, and nutritional compositions containing the spray-dried powder.

Proposed are an aqueous two-phase system nanofilter capable of effectively separating particles having different sizes within a short time, and a separation method using same. The aqueous two-phase system nanofilter can separate mixed nanoparticles having a size difference of approximately 10 nm, through the designing of a composition constituting each composition. The separated nanoparticles can be applied across industries such as electronics, photoelectronics and magnetic fields, biomedical, medical and cosmetic fields, energy, catalysts, and structures.

An evaporative emission control system for an automotive vehicle having an internal combustion engine and a fuel tank includes a membrane module disposed and connected between the internal combustion engine and the fuel tank, and configured to reduce discharge of fuel vapor generated from the fuel tank to the atmosphere. The membrane module includes a first passage and a second passage separated by a membrane, and the fuel vapor permeates the membrane in the membrane module. The evaporative emission control system further includes a buffer-volume housing connected to the membrane module by an additional passage and configured for storing fuel-rich vapor that has permeated the membrane. Furthermore, the evaporative emission control system includes an activated carbon filter disposed between the fuel tank and the membrane module, and a purge valve disposed between the membrane module and the engine.

An evaporative emission control system for an automotive vehicle having an internal combustion engine and a fuel tank includes a membrane module disposed and connected between the internal combustion engine and the fuel tank, and configured to reduce discharge of fuel vapor generated from the fuel tank to the atmosphere. The membrane module includes a first passage and a second passage separated by a membrane, and the fuel vapor permeates the membrane in the membrane module. The evaporative emission control system further includes a buffer-volume housing connected to the membrane module by an additional passage and configured for storing fuel-rich vapor that has permeated the membrane. Furthermore, the evaporative emission control system includes an activated carbon filter disposed between the fuel tank and the membrane module, and a purge valve disposed between the membrane module and the engine.

Disclosed is a method for the manufacture of a spray-dried powder consisting essentially of LNT and/or LNnT, the spray-dried powder, its use for the manufacture of nutritional compositions, and nutritional compositions containing the spray-dried powder.

A system includes an ion exchange softener fluidly coupled to a wastewater treatment system. The first ion exchange softener may receive a first brine stream from the wastewater treatment system and to remove a plurality of minerals from the first brine stream to generate a second brine stream including the plurality of minerals and a third brine stream. The system also includes a mineral removal system disposed downstream from the ion exchange softener and that may receive the second brine stream and to generate a sodium chloride (NaCl) brine stream and an acid and caustic production system disposed downstream from and fluidly coupled to the mineral removal system. The acid and caustic production system includes a first electrodialysis (ED) system that may receive the NaCl brine stream from the mineral removal system and to generate hydrochloric acid (HCl) and sodium hydroxide (NaOH) from the NaCl brine stream. The system also includes a second ED system disposed downstream from the ion exchange softener and upstream of the acid and caustic production system. The second ED system is fluidly coupled to the ion exchange softener and to the acid and caustic production system, and the second ED may generate desalinated water from the third brine stream and an ED concentrate stream. The second ED system may direct the ED concentrate stream to the acid and caustic production system.