The present disclosure relates generally to oxidation of ammonia using electrochemistry. Methods and systems may include at least one sensor to measure the concentration of ammonia in the effluent and/or the concentration of chlorine gas in the effluent. Methods and systems may also include at least one controller in communication with the sensor and/or the anode to reduce the current density of the anode generating the chlorine, and/or to change the flow rate of the ammonia containing water entering the reactor.

Implementations of this disclosure are directed to systems, devices and methods for monitoring parameters associated with a body of liquid. In one embodiment, a device includes a container configured to be partially submerged in a liquid and includes sensors disposed within a submerged portion of the container to measure parameters associated with the liquid. An electronic component disposed within an unsubmerged portion of the container transmits information related to the parameters based upon which one or more actions related to treatment of the body of liquid are suggested.

The present invention relates to a ballast water treatment system and method. The ballast water treatment system comprises of at least one ballast tank, at least one mixing nozzle, a treatment unit, wherein the treatment unit comprises an electrochlorination module and a dechlorination module, a dosing module, wherein the dosing module is coupled to the treatment unit, and a control system. The method comprises introducing ballast water into at least one ballast tank disposed on the vessel, circulating at least a portion of the ballast water between the at least one ballast tank and a dosing module, generating a disinfectant via a treatment unit, wherein the treatment unit comprises an electrochlorination unit and a dechlorination module, and delivering the disinfectant from the treatment unit to the circulating ballast water at the dosing module.

System (100) and method of automatically controlling an active oxidant concentration (e.g. sodium hypochlorite) for a process of producing monochloramine comprising applying metered amounts of an oxidant solution and an amine solution to a defined area (114). An electrochemical measurement device is provided in association with the oxidant solution and prior to the defined area, N comprising at least first and second electrodes and an output terminal. A predetermined voltage potential is applied across the first and second electrodes, wherein an obtained amperometric measurement corresponds to a real-time concentration of the active oxidant in the oxidant solution. A feedback signal is generated based on the obtained measurement via the output terminal to a controller (108), which automatically regulates, in real-time and based at least in part on the control signal, the metered amount of oxidant solution provided to the defined area.

A method includes producing a first blended low salinity injection water for injection into at least one injection well that penetrates a first region of an oil-bearing reservoir and producing a second blended low salinity injection water for injection into at least one injection well that penetrates a second region of an oil-bearing reservoir. The reservoir rock of the first and second regions has first and second rock compositions, respectively, that present different risks of formation damage. The first and second blended low salinity injection waters comprise variable amounts of nanofiltration permeate and reverse osmosis permeate. The compositions of the first and second blended low salinity injection waters are maintained within first and second predetermined operating envelopes, respectively, that balance improving enhanced oil recovery from the first and second regions while reducing formation damage upon injecting the first and second blended low salinity injection waters into the oil-bearing reservoir.

Ultraviolet irradiation of an aquatic environment for the purposes of sterilization, disinfection, and/or cleaning fluids and surfaces associated with the aquatic environment. The aquatic environment can be irradiated using an ultraviolet illuminator having at least one ultraviolet radiation source and at least one sensor to detect conditions of the aquatic environment including fluid conditions and/or surface conditions associated with the aquatic environment. A control unit, operatively coupled to the at least one ultraviolet radiation source and the at least one sensor, determines a presence of algae growth about the aquatic environment. The control unit is further configured to direct the at least one ultraviolet radiation source to irradiate the aquatic environment at locations where there is a presence of algae growth for removal and suppression of further growth, monitor the irradiation with the at least one sensor, and adjust irradiation parameters as a function of detected conditions.

The present invention relates to a ballast water treatment system and method. The ballast water treatment system comprises of at least one ballast tank, at least one mixing nozzle, a treatment unit, wherein the treatment unit comprises an electrochlorination module and a dechlorination module, a dosing module, wherein the dosing module is coupled to the treatment unit, and a control system. The method comprises introducing ballast water into at least one ballast tank disposed on the vessel, circulating at least a portion of the ballast water between the at least one ballast tank and a dosing module, generating a disinfectant via a treatment unit, wherein the treatment unit comprises an electrochlorination unit and a dechlorination module, and delivering the disinfectant from the treatment unit to the circulating ballast water at the dosing module.

A water purification apparatus includes a water inlet; a medicine mixing device in fluid communication with the water inlet; and a water outlet interconnected to the medicine mixing device and a dental treatment center. The medicine mixing device includes a medicine storage for storing antiseptic solution, a mixing unit interconnected to the water inlet, the water outlet, and the medicine storage, and a controller interconnected to the water inlet and the medicine storage. The controller includes a sensor and a microprocessor. The controller sends the antiseptic solution from the medicine storage to the mixing unit and controls a volume of water flowing from the water inlet to the mixing unit. The microprocessor instructs the controller to control a volume of the antiseptic solution supplied from the medicine storage to the mixing unit based on a signal sensed by the sensor.

A swimming pool Smart Boat for pool maintenance and water safety is described. The Smart Boat includes chlorine and pH sensors for monitoring water quality and is capable of releasing chemicals into the pool water based on monitoring. A screen panel is configured to trap debris in the pool. Additionally, the Smart Boat provides for water safety by monitoring water disturbances which indicate a swimmer has entered the pool and sending an alert based on the detection of a disturbance. A remote control unit provides alerts and controls navigation, the release of chemicals and the screen panel position.

A water quality management system for a water installation containing water. In some embodiments, the system includes a water quality measurement module adapted to monitor the water quality of the water in the water installation and to send water quality information to a controller; a chemical dispensing module adapted to dispense chemicals directly into the water installation in response to signals from the controller; and a communication mechanism configured to provide communication among the controller, the water quality measurement module, the chemical dispensing module and a user.