Abstract: A PH value detection device for detecting a PH value of a solution includes first and a second electrodes to be inserted into the solution; and a power source configured to apply a bipolar rectangular potential pulse signal to the first and second electrodes. A current detector is connected between the first and second electrodes and is configured to detect a current flowing through the first and second electrodes. A calculator is configured to calculate the PH value of the solution, based on the detected current.

Abstract: The prior arts generate bubbles with fixed characteristics of the gas in the bubbles. The invention proposes an apparatus of generating bubbles and a method thereof. The apparatus comprising: a first unit (10) configured to determine at least one characteristic of a gas in the bubbles; a second unit (12) configured to generate the bubbles, comprising: an electrolyzer (120) configured to electrolyze an electrolyte to generate the gas in the electrolyte, thereby generating bubbles; and a controller (14), configured to control the second unit to generate the bubbles according to the at least one characteristic of the gas. In embodiments of the invention, the generation is controllable with respect to the gas in the bubble based on the practical requirement of the gas, and is more flexible and with wide applicability.

Abstract: The present invention provides an ion absorption/desorption device and a corresponding method. The ion absorption device may comprise: an electrode pair (12, 14), at least one electrode of the electrode pair (12, 14) being covered by ions-permeable gel (16a) with functional groups, the gel (16a) absorbing ions in a liquid (26a) when a voltage is applied on the electrode pair (12, 14). Covering the electrode with ions-permeable gel with functional groups may facilitate chelation of the cations and/or anions in the liquid with the functional groups in the gel, thereby, immobilizing these ions in the gel so as to improve absorption efficiency.

Abstract: The prior arts generate bubbles with fixed characteristics of the gas in the bubbles. The invention proposes an apparatus of generating bubbles and a method thereof. The apparatus comprising: a first unit (10) configured to determine at least one characteristic of a gas in the bubbles; a second unit (12) configured to generate the bubbles, comprising: an electrolyzer (120) configured to electrolyze an electrolyte to generate the gas in the electrolyte, thereby generating bubbles; and a controller (14), configured to control the second unit to generate the bubbles according to the at least one characteristic of the gas. In embodiments of the invention, the generation is controllable with respect to the gas in the bubble based on the practical requirement of the gas, and is more flexible and with wide applicability.

Abstract: Ions are important for human life. The current method to choose the ions type and the concentration is the traditional chemical dissolving ways. The invention proposes an apparatus and a method of preparing a solution (5) containing cations and anions. The apparatus comprises: at least one cation releasing module (10), each of which is configured to release at least one type of cations; at least one anion releasing module (12), each of which is configured to release at least one type of anions; and a controller (14) configured to control at least one said cation releasing module (10) and at least one said anion releasing module (12) to release corresponding types of ions. The embodiment of the invention automatically prepares a solution by respectively controlling the cations and the anions.

Abstract: The present invention provides a PH value detection device and a method of detecting a PH value of a solution. The PH value detection device may comprise: a first electrode and a second electrode, wherein the first electrode and the second electrode are to be inserted into the solution; a power source for applying a bipolar rectangular potential pulse signal to the first electrode and the second electrode; a current detection means connected between the first electrode and the second electrode for detecting a current I flowing through the first electrode and the second electrode; and a calculating unit for calculating the PH value of the solution, based on the detected current I. By means of the above design of the present invention, the use of the fragile glass electrode and the reference electrode, e.g.