2 results about "Ph changes" patented technology

A system and method for an electrochemical capture and release of CO2 via a pH- independent, pH swing redox chemistry is described. More specifically, the system and method rely on the advantageously pH-independent redox chemistry of a carefully selected redox matter, wherein the redox matter is a molecule or material that undergoes reversible electrochemical redox reactions with the subsequent chemical interactions with H2O resulting in large pH changes without direct involvement of protons or hydroxide ions during the electrochemical step. The redox matter is stable in both its reduced and oxidized states, and is water soluble. The pH difference afforded by the redox matter is utilized to modulate the CO2 solubility in solution and capture and release CO2. This redox chemistry is pH-independent, wherein the equilibrium potential of the reaction is not directly dependent on the pH, which, in turn, enables highly efficient CO2 capture and release.

This utility model relates to a rapid pH adjustment device for liquid fertilizer, belonging to the technical field of liquid fertilizer pH adjustment. The rapid pH adjustment device includes: a housing, a discharge port located on the back of the housing, and discharge ports located on both sides of the bottom of the housing. The stirring mechanism includes a stirring chamber located inside the housing, with an acidic solution chamber and an alkaline solution chamber located on both sides of the stirring chamber. A stirring assembly is installed inside the stirring chamber. By setting multiple outlet pipes at different heights on the surface of the stirring rod, when the liquid fertilizer requires acid / alkali adjustment, the acid or alkaline solution is directly injected into the liquid fertilizer through the outlet pipes. Combined with the stirring pipes, this allows for simultaneous pH adjustment of liquid fertilizer at different heights, effectively avoiding the problem of localized concentration gradients caused by the concentration of acid or alkaline solution on the upper layer of the liquid fertilizer, and greatly reducing the probability of sudden pH changes on the surface of the liquid fertilizer.