Abstract:
A portable water conditioning system is provided that includes an incoming water inlet; a reverse osmosis stage in fluid communication with the incoming water inlet, the reverse osmosis stage having a permeate outlet and a concentrate outlet; a diversion device having a diversion valve, the diversion valve placing the concentrate outlet in fluid communication with a waste water outlet; a deionizing stage in fluid communication with a pure water outlet; a bypass valve configured to selectively place the permeate outlet in fluid communication with one or more of the waste water outlet, the deionizing stage, and the pure water outlet; and a controller configured to control the diversion device and the bypass valve to provide water at the pure water outlet of a desired condition.
Abstract:
This disclosure relates to an apparatus (100) and method for analyzing an influence variable on membrane fouling of a seawater desalination system, wherein influence variables other than variables having a low degree of influence, among variables affecting the membrane, are selected, and the influence thereof on membrane fouling is used to derive an equation. The apparatus includes a variable reception unit for variables affecting membrane fouling of a seawater desalination system (105), a variable storage unit (110), a dominant variable selection unit (120) configured to select at least one dominant variable through at least one algorithm, an equation derivation unit (130) configured to derive a specific equation based on a correlation between the selected dominant variable and the membrane fouling and a variable control unit (140) configured to control the seawater desalination system to control the dominant variable.
Abstract:
The invention relates firstly to a process for purifying hydrogen peroxide, comprising: the provision of an initial stream containing hydrogen peroxide at a content of greater than 50% by weight, and also at least one stabilizer; a single step of purification of the initial stream, said single step consisting of a purification by reverse osmosis; the collection of a purified stream at the end of said single purification step. The invention also relates to a solution capable of being obtained by this process.
Abstract:
A reverse osmosis unit for processing a feed solution is provided. The unit includes a pressure vessel includes an inlet end, an outlet end, and a vessel body extending between the inlet end and the outlet end. The reverse osmosis unit further includes a plurality of first membrane modules positioned within the pressure vessel. Each first membrane module of the plurality of first membrane modules has a first salt permeance value. At least one second membrane module is positioned within the pressure vessel and coupled in flow communication to the plurality of first membrane modules. The at least one second membrane module has a second salt permeance value that is different from the first salt permeance value.
Abstract:
A scale detection device of a concentrating device comprises: a reverse osmosis membrane device 13 that is a concentrating device including a reverse osmosis membrane 13a, which is a filtering membrane for concentrating salt in a water to be treated 11, containing at least calcium sulfate to obtain reclaimed water 12; and a scale detection unit 15 disposed in a branched line L 14 branched from a concentrated water line L 13 discharging concentrated water 14 having a high concentration of salt, the scale detection unit further concentrating the salt in the concentrated water 14 to obtain reclaimed water for detection 16, and including a detection membrane 15a detecting the absence or presence of scale component deposition in the concentrated water 14.
Abstract:
The invention relates to a system (1) for producing purified water, characterised in that it comprises: a main stage comprising at least one main osmosis unit (2); and a secondary stage comprising at least one secondary osmosis unit (10); the inlet of the secondary osmosis unit (10) being connected to an outlet (12) for the concentrate produced from a reverse osmosis process in the main osmosis unit (2). The invention also relates to a method for implementing such a system and to a method for increasing the production of a prior art system.