A system and method for controlling the remediation of aquatic facilities using at least one sanitizer sensor, a pH sensor, a temperature sensor and a chlorine dioxide sensor all interfaced with a programmable controller that is programmed to implement a remediation cycle and configured to calculate a Ct value, the sensors being in fluid contact with water of the aquatic facility, and the programmable controller is interfaced with a chemical feed system for supplying chlorine dioxide to the water.

Disclosed herein are fluid chemistry systems comprising fluid chemistry manifolds. The fluid chemistry manifolds can comprise an inlet, two flow paths in fluid communication with the inlet, one or more probe apertures, and an outlet in fluid communication with the two flow paths. The one or more probe apertures can be configured to receive at least a portion of a corresponding fluid chemistry probe. The probe can be configured to detachably attach to the one or more probe apertures and fluidly communicate with the flow path. The probe can include one or more of a pH sensor, an oxidation reduction potential (ORP) sensor, and a total dissolved solids (TDS) sensor. The systems can also comprise an adjustable valve configured to selectively permit a predetermined amount of fluid flow through the at least one of the two flow paths.

A coffee machine is disclosed having a water system intended to be connected to a water supply system, a filter unit disposed at the inlet of the water system, a pump, a tank disposed in the water system between the filter unit and the pump, a sensor unit disposed in the tank and suitable for measuring at least one quality parameter of the water contained in the tank, a monitoring unit electrically connected to the sensor unit to receive electrical signals that are indicative of the measured water quality parameters, transduce the electrical signals in numerical values and compare the numerical values of the measured parameters with preset threshold ranges, and a user interface operatively connected to the monitoring unit and having an alarm to indicate when a water parameter is out of the preset threshold range.

A method of purifying nutrient contaminated water for safe reuse or discharge, while recovering the fertilizer value of the contaminants. The system includes digestion tanks for the conversion by appropriate fauna and aerobic bacteria of dissolved or suspended organic contaminants into dissolved inorganic contaminants, which are flow connection with biofiltration tanks for the removal by plant root uptake of the dissolved inorganic contaminants. Generally, the digestion and biofiltration tanks are configured wherein contaminated water is conducted between one or more digestion tanks containing detritivorous or omnivorous fauna which feed on suspended contaminants and pathogens and aerobic bacteria which feed on the excreta of the fauna which will solubilize and decompose organic contaminants, oxidize nitrogen compounds into nitrates and competes with pathogens, and one or more biofiltration tanks containing pants potted in the water which uptakes dissolved inorganic contaminants.

A mobile device reads a test strip to determine a chemical condition of a liquid or a user inputs a treatment plan into the mobile device. The mobile device transmits the determined chemical condition or the input treatment plan to a liquid treatment system which treats the fluid in response to the determined chemical condition or the input treatment plan.

Methods and systems are described for treating water in a water system that includes a biofilm with acid-producing bacteria. The biofilm can be treated, reduced, or eliminated by adding chlorite to the water and reacting the chlorite with acid generated by the acid-producing bacteria to form chlorine dioxide. The chlorine dioxide is thus formed in situ localized to the biofilm, and can be effective to kill bacteria in the biofilm.

A method of automatically controlling chloramine concentration in a body of water contained in a reservoir includes: (a) determining residual chloramine concentration in a first water sample obtained from the body of water; (b) automatically engaging a supply of chlorine to add chlorine to the body of water when the residual chloramine concentration in the first water sample is determined to be below a residual chloramine concentration set-point or a first chloramine concentration percentage; (c) determining residual chloramine concentration in a second water sample obtained from the body of water after step (b); and (d) automatically engaging a supply of ammonia and the supply of chlorine to add both ammonia and chlorine to the body of water if the residual chloramine concentration in the second water sample is determined to be below the residual chloramine concentration in the first water sample or a second chloramine concentration percentage.

The invention relates to a simplified modular reactor, where the method of purifying swimming pool waters can be carried out in an integral manner, where said method may comprise simultaneously applying the techniques of: oxidation-disinfection, ultraviolet radiation, and pH adjustment on the water to be treated.

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.

A device for cell culture comprising: a main body (11); said main body (11) comprises a plurality of circular portions (21-23); said device comprises a plurality of caps (51-53); each of said plurality of caps (51-53) comprises a base structure (58) having a circular hole (57), housing an upper slide (54) and an elastomeric layer (56) secured to said slide (54); said elastomeric layer (56) has a rectangular hole (59); said plurality of caps (51-53) being adapted to cooperate with said plurality of circular portions (21-23); each of said plurality of circular portions (21-23) each comprise an inlet hole (64-66) and an outlet hole (67-69) aligned with the long side of said rectangular hole (59), to perfuse the culture chamber (12-14) located in said rectangular hole (59) of said elastomeric layer (56).