3 results about "Chlorate ion" patented technology

This invention relates to the field of automatic control technology, specifically to a method for stabilizing and controlling the effective chlorine content of sodium hypochlorite solution. During the cooling stage of the sodium hypochlorite solution, an online electrochemical sensor acquires the concentration signal of free trace metal ions in the solution. When the signal reaches a preset threshold of the controller, the controller instructs a peristaltic pump to add a compound stabilizer to the solution. The compound stabilizer is prepared by mixing a specific short peptide containing cysteine ​​and histidine with a silicate buffer solution. After adding the compound stabilizer, the solution undergoes short-term ultrasonic cavitation treatment. This method uses a specific short peptide instead of traditional aminopolycarboxylate salts, avoiding the breaking and failure of carbon-nitrogen bonds under strong oxidizing conditions, preventing secondary release of metal ions that could trigger catalytic decomposition, extending the effective chlorine half-life, and reducing the amount of chlorate byproducts generated.

The application discloses a treatment method for improving ion membrane method chlorate decomposition capacity. Chlorine-containing dilute brine, which is exchanged by a chlorate heat exchanger, is mixed with hydrochloric acid in a static mixer, and then is introduced into a chlorate decomposition tank for decomposition. The dilute brine after decomposition in the chlorate decomposition tank is pumped into a dechlorination tower by a chlorate pump. Chlorine gas generated after the decomposition of the chlorine-containing dilute brine in the chlorate decomposition tank is removed through a gas phase pipeline to a chlorine gas main pipe. In abnormal conditions, a chlorine gas removal system is used. Through process control parameter optimization adjustment of the chlorate decomposition device, adjustment of the acid adding process and operation, the chlorate content at the outlet of the chlorate decomposition tank can be reduced to below 2g / L, the decomposition rate is increased to above 90%, and the dilute brine treatment capacity is increased to 8-10m 3 / h.