An open-cell foam structure that is used to detect and remove substances from water or air.

A self-cleaning fountain includes: a structure having two ends, defining a first flow way for a first fluid to flow along, wherein the structure defines holes for allowing a second fluid to flow through the holes; a pump system configured to pump the first fluid to a first end of the structure; a distributer located at the first end of the structure and configured to spray the first fluid received from the pump system onto the structure; a catch basin located at a second end of the structure for collecting the first fluid that has moved along the flow way to the catch basin; a photocatalytic coating on the structure; and a light source configured to direct light on the photocatalytic coating.

Waste heat generated by devices as a byproduct of their operation is utilized to increase and maintain the temperature of non-potable water to neutralize biological contaminants, thereby rendering such water potable. The potable water can then be utilized for evaporative cooling of the devices. A temperature sensor monitors the temperature of the non-potable water and a controller controls the pump to provide sufficient time for the water to remain in the heat exchanger above a predetermined temperature to neutralize biological contaminants and render such water potable. To the extent that different devices generate different quantities and intensities of waste heat, multiple heat exchangers are utilized, with lower intensity waste heat serving to preheat the water and, thereby, reduce the amount of time needed to reach the target temperature in a primary heat exchanger. Waste heat not utilized to generate potable water can be utilized for other heat-driven processes.

A system for injecting an aqueous solution into an injection engine, includes: a tank for an aqueous solution, a circuit for supplying aqueous solution to the tank and a filter for filtering the aqueous solution, and a circuit for recirculating the aqueous solution. The injection system also includes recirculation of the aqueous solution, and is provided with an electrovalve including a first inlet connected to a filler neck of the tank, a second inlet connected to the recirculation circuit, and an outlet connected to the supply circuit. The filtration filter is arranged in the supply circuit and/or in the recirculation circuit.

Embodiments relate a method of treating a water system that includes providing to the water system a fluorescent-tagged treatment polymer that is the reaction product of a mixture that includes at least one unsaturated monomer, at least one initiator with at least one reactive terminal group for reacting with the unsaturated monomer, and at least one fluorescent chain transfer agent, the at least one fluorescent chain transfer agent having a phosphorus-hydrogen or sulfur-hydrogen group connected to a polyaromatic hydrocarbon group having from two to ten rings, and the at least one fluorescent chain transfer agent being a chain transfer agent that controls final polymer molecular weight of the fluorescent-tagged treatment polymer and a fluorescent tag for the fluorescent-tagged treatment polymer.

The present embodiments generally relate to compositions and methods for the treatment of fluids in need of treatment, such as, for example, industrial wastewaters. The compositions and methods for treating the fluids in need of treatment generally comprises the use of one or more stable ferrous products in amounts effective to treat said fluids.

Devices and methods are provided for in-line water treatment using strong magnetic fields to influence corrosion, separate toxins, suppress bacteria and bio-fouling, as well as inhibit or greatly reduce mineral scaling due to fluid flow in or around equipment components. For example, a device is provided for applying a magnetic field to a portion of tubing through which a fluid flow, such as water, is conveyed. The device includes a number of links joined together via detachable pivoting connections, such that links may be removed and/or links may be added, thereby allowing a diameter of the device to be adjusted so as to accommodate larger or smaller piping, as necessary, for retrofitting applications. The use of magnetic treatment of fluids such as water may allow extended cycles of operation with higher concentration of mineral salts without the use of chemical scaling suppressants.

A method for extending the use of water during the production of products for human consumption in food production facilities for an extended period of time of at least two production days and up to seven production days by delivering an initial chemical charge at the beginning of each production day to return the process water to the desired antimicrobial solution concentration to provide acceptable antimicrobial control of the process water over the extended period of time. The method providing acceptable antimicrobial control in the processing of any protein or non-protein based food products that require batch or continuous chilling as part of the production process. The length of time that the water may be used in a processing tank may be dramatically and safely increased before the processing tank is emptied for cleaning, sanitizing and refilling.

A water treatment device and methods of treating water such as cooling tower water, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.

The present disclosure provides a liquid treatment device and a liquid treatment method each capable of efficiently generating plasma and treating a liquid in a short time period. A liquid treatment device according to the present disclosure includes a first electrode, a second electrode disposed in a liquid, an insulator disposed surrounding the first electrode through a space, the insulator having an opening portion at a position in contact with the liquid, and a power supply that applies an AC voltage or a pulse voltage between the first electrode and the second electrode.