摘要:
The invention relates to a device for treating water condensed from water vapor contained in the atmospheric air. Means for adding minerals via contact of said condensed water with a remineralization reactor containing at least one alkaline earth rock produce remineralized water that is in accordance with potable water standards and can thus be sent into a piping system. The invention also relates to a system for generating potable water, including means that are intended for condensing the water vapor contained in the atmospheric air and are combined with such a condensed water treatment device.
摘要:
Disclosed are methods to predict the occurrence of polarization and the design and operation of electrochemical systems to maintain a current density below the limiting current density and avoid instability.
摘要:
Systems and methods for removing hydrogen peroxide from water purification systems are provided. In a general embodiment, the present disclosure provides a water purification system including a water treatment unit, an electrodeionization unit and a hydrogen peroxide decomposition catalyst in fluid connection with the electrodeionization unit. The water purification system can be fluidly connected to a renal treatment system.
摘要:
The invention provides methods and compositions for the protection of a membrane from both biofouling and from damage caused by a biocide. The invention utilizes PAA as both a biocide and as a reducing agent for other oxidizing biocides. This is especially beneficial because without the invention one would be forced to choose between preventing membrane biofouling or preventing membrane damage from oxidizing biocides.
摘要:
A functional polymer membrane having a pore volume fraction of 0.6% or more and 3.0% or less by allowing a reaction of curing a composition containing a polymerizable compound (A) and a copolymerizable monomer (B).
摘要:
Phase control apparatus and methods for antenna arrays are disclosed. Phase shifts at respective antenna element subunits along a first axis of an antenna array are controlled by applying a variable control voltage across a voltage divider to divide the variable control voltage into multiple voltages that are used to generate phase shift control voltages for phase shift elements corresponding to the respective antenna element subunits. The antenna array may be steered along the first axis by controlling the variable control voltage applied across the voltage divider. A second voltage divider could be used to extend phase control and steering to two dimensions.
摘要:
An electrodeionization apparatus for producing deionized water comprises a deionization treatment unit including deionization chamber D and a pair of concentration chambers C1 and C2 placed adjacent to deionization chamber D on opposite sides thereof and those concentration chambers are filled with anion exchangers. The deionization chamber D is partitioned by an ion exchange membrane into first small deionization chamber D-1 adjacent to concentration chamber C1 and second small deionization chamber D-2 adjacent to concentration chamber C2. First small deionization chamber D-1 is filled with an anion exchanger. Second small deionization chamber D-2 is filled with an anion exchanger and a cation exchanger in a sequence such that the ion exchanger, through which water that is to be treated finally passes, is the anion exchanger.