A mobile water purification system having a trailer, a pretreatment subsystem having a cyclonic separator, a filtering subsystem fluidly connected with the pretreatment subsystem, the filtering subsystem having at least one bedded filter; a reverse osmosis subsystem fluidly connected with the filtering subsystem, the reverse osmosis subsystem having a waste output and a product output; a collection tank fluidly connected with and downstream of the reverse osmosis subsystem; a distribution subsystem fluidly connected with and downstream of the collection tank; a source water inlet mounted to the exterior and fluidly connected to the pretreatment inlet, the source water inlet outside of the at-least partially enclosed space; and a discharge water outlet mounted to the plurality of sidewalls and fluidly connected to the pressure tank, the discharge water outlet having an outlet opening outside of the at least partially-enclosed space.

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.

A method of automatically ensuring against chloramine contamination in purified product water includes supplying input water to the system and purifying the water to generate the purified product water. The purifying includes removing chlorine and chloramine contamination from the water using a carbon filter and supplying chlorine-depleted water to a deionization filter, and deionizing the chlorine-depleted water using said deionization filter. The product water is supplied to a sensor for continuous monitoring of the resistivity of the purified product water by the first sensor, and an alarm is generated indicating possible chloramine breakthrough when the resistivity of the product water falls below a predetermined resistivity level, which is selected to provide a reserve filter capacity before breakthrough would occur. The carbon filter is replaced at least responsively to the alarm to ensure excess capacity of said carbon filter sufficient to prevent chloramine breakthrough in said product water.

A system for disinfecting and removing biological material from water to be injected into an injection well in a water body is described; the system includes: at least one apparatus for the gravitational precipitation of particles from water, which is connected, in terms of fluid, to a source of untreated water and to the injection well; and an apparatus for the addition of an oxidant for the disinfection of water, which is connected in terms of fluid to the apparatus for the gravitational precipitation of particles, a source of untreated water and to the injection well such that the apparatus for the gravitational precipitation of particles is positioned downstream relative to the apparatus for the addition of an oxidant for disinfection. The disclosure also relates to a method for disinfecting and removal of biological material from injection water.

Methods and apparatus for monitoring process water within a food processing system are provided. One example water control system for a food processing system generally includes a temperature adjustment element having an inlet and an outlet and a sensor coupled to the outlet of the temperature adjust element. The temperature adjustment element is configured to: receive, at the inlet, a portion of process water from a process water supply in a stage of the food processing system, the process water in the process water supply and the received portion of the process water having a first temperature; and cause the portion of the process water at the outlet to have a second temperature, different from the first temperature. The sensor is configured to measure at least one property of the portion of the process water received from the outlet of the temperature adjustment element.

An electrochlorination system comprises a source of feed fluid, a product fluid outlet, and a plurality of electrochemical cells connected fluidically between the source of feed fluid and the product fluid outlet. The system is configured to operate at least one of the plurality of electrochemical cells at one of a first current density or a first flow rate, and to operate another of the plurality of electrochemical cells at a second current density or second flow rate different from the respective first current density or first flow rate.

A portable liquid measuring and filtering device includes a measuring channel, at least one sensor, at least one actuating device and a filtering element. The measuring channel is used for allowing a target liquid to flow therethrough. The at least one sensor is disposed within the measuring channel for measuring the target liquid. The at least one actuating device is in communication with the measuring channel for transferring the target liquid. The filtering element is disposed within the measuring channel and arranged adjacent to the at least one actuating device for filtering the target liquid. If a measuring result of the sensor indicates that a monitored value of the target liquid is abnormal, the actuating device is enabled to transfer the target liquid. Consequently, the target liquid is filtered by the filtering element.

A ballast water treatment system for producing treated seawater is described herein that includes: a reaction chamber, wherein the reaction chamber is located within a vessel; an inlet for introducing chlorine dioxide into the reaction chamber, wherein the reaction chamber is equipped with one or more turbulence inducing devices configured for inducing turbulence, wherein the turbulence inducing device is a stationary device; a second inlet for the introduction of seawater, into the reaction chamber; and an outlet from the reaction chamber, wherein the treated seawater is returned to a storage facility within the vessel or is returned to the sea. A method of treating ballast seawater for producing treated seawater is also described that includes: providing a reaction chamber, wherein the reaction chamber is located within a vessel; providing an inlet for introducing chlorine dioxide into the reaction chamber, wherein the reaction chamber is equipped with one or more turbulence inducing devices configured for inducing turbulence, wherein the turbulence inducing device is a stationary device; providing a second inlet for the introduction of seawater, into the reaction chamber; providing an outlet from the reaction chamber; and treating the seawater with chlorine dioxide, wherein the treated seawater is returned to a storage facility within the vessel or is returned to the sea.

The present disclosure is directed to a method of removing pesticides from water. An electrolysis cell oxidizes pesticides and/or other organic components, optionally in conjunction with one or more filtration steps. Hydrogen peroxide may be added to the electrolysis process to aid oxidation.

A managed water system can include a first body of water contained in a vessel. The managed water system can also include at least one sensor device that measures at least one parameter associated with the first body of water. The managed water system can further include a circulation system that circulates the body of water relative to the vessel. The managed water system can also include a controller communicably coupled to the at least one sensor device and the circulation system. The controller can control the circulation system, and receive measurements of the at least one parameter made by the at least one sensor device. The controller can also evaluate the measurements using multiple algorithms, and communicate a result of evaluating the measurements.