A scalable, portable and modular chlorine dioxide fumigant decontamination system having an activating area and a neutralizing area which may be housed separately or as a single operationally connected unit, and which may be configured as a closed loop system connected to a decontamination chamber for decontamination of articles, or as an open loop system for decontamination of interiors and large confined spaces, and employing a specialized activating cup that is permeable to air yet substantially impermeable to water and chlorine dioxide reaction by-products such that directing air through the activation cup releases nearly pure chlorine dioxide fumigant. Methods and articles relating to the system are also described.

The invention relates to a method for the autonomous generation of safe self-limiting concentrations of chlorine dioxide for the treatment of process water. The method comprises a system that is self-limiting such that variations in water flow-rate and/or feed-rate of chlorite donor does not allow for increased concentrations of chlorine dioxide. The effluent concentration from the system does not exceed 3000 ppm thereby providing a means of generating chlorine dioxide for use where remote applications and/or where unskilled personnel are involved.

The disclosure relates to a supply system for generating chlorine dioxide and for mixing it into water in a filling system or a similar system for food production, and to a method for monitoring and controlling the supply system. This comprises sensors for monitoring at least one consumable material parameter and at least one machine parameter relating to the feed and/or concentration of the chlorine dioxide into/in the water, a data output for transmitting measurement data from the supply system obtained by means of such sensor-based monitoring, and a data input for receiving external control data for controlling the supply system. By means of the measurement data and the received control data, the supply system can be controlled in a programmed manner, and enables remote-controlled optimization of processes for producing, distributing, and using chlorine dioxide in a filling system.

Methodologies, systems, and devices are disclosed for generating a chemical compound. A reaction chamber holds an amount of a precursor chemical, an activator chamber holds an amount of an activator chemical, and a quenching and neutralizer chamber holds an amount of quenching and neutralizing chemicals. A pump transfers the activator chemical from the activator chamber to the reaction chamber, where the activator chemical reacts with the precursor chemical to form the desired chemical compound. The desired chemical compound is allowed to exit the reaction chamber. Subsequently, the pump transfers the quenching and neutralizing chemicals from the quenching and neutralizer chamber to the reaction chamber, resulting in a quenched and neutralized solution.

A method for treating water with chlorine dioxide wherein the reactor is contained inside of the water supply line being treated and an eductor is used to draw in the chemical precursors. The method offers facilitated chlorine dioxide (ClO .sub.2) generation and safer operation over wider ClO.sub.2 mass flow capacity, thus offering a more adaptable system for CLO.sub.2 treatments. Noise reduction and ease-of-use versus traditional eductor-based ClO.sub.2 generators are additional benefits from using this method.

A system and method is provided for producing and delivering a product. The system includes a chamber having an inlet end, an outlet end and quenching points positioned therebetween. The inlet end is configured to receive a plurality of precursors and the quenching points are configured to receive water to obtain quenching of the reaction in the chamber thereby providing varying concentration of the resultant product.

A system and method for controlling multiple methods of remediation cycles for the treatment of water of an aquatic facility for immersion by humans using a process controller programmed to obtain a targeted chlorine dioxide CT Value in the water. The system controls remediation cycles having different completion time intervals and chlorine dioxide setpoints using integrated chemical feed systems.

A method of manufacturing a dry solid comprising a hypochlorite and a chlorite may include preparing a solution comprising a hypochlorite ion, a chlorate ion, and a chloride ion; a first reaction step for adding sulfuric acid to the solution to generate chlorine gas; reacting the generated chlorine gas with sodium hydroxide or calcium hydroxide and recovering a reaction product as a hypochlorite ion in recovery liquid A; a second reaction step for adding sulfuric acid to a reaction mother liquor after the first reaction step at a concentration that is higher than that in the first reaction step to generate chlorine dioxide gas; reacting the generated chlorine dioxide gas with sodium hydroxide and hydrogen peroxide and recovering a reaction product as a chlorite ion in recovery liquid B; mixing recovery liquid A with recovery liquid B; and drying and solidifying the resulting mixture.

This disclosure relates to a composition, a system and a method of reducing and preventing the growth of microbes, or for killing microbes. More particularly, the disclosure relates to a composition, a system and a method of reducing and preventing growth of microbes, or for killing microbes, e.g., in food and medical equipment containers, using polymers entrained with antimicrobial agents.

Methods, kits, cartridges and compounds related to generating chlorine dioxide by exposing ClO.sub.2.sup. to at least one of a manganese porphyrin catalyst or a manganese porphyrazine catalyst are described. Methods, kits, cartridges and compounds related to decomposed cyanide ions and hydrogen cyanide for water decontamination.