The present invention provides a method of managing operation of a point-of-use fluid treatment arrangement for providing treated fluid to at least one end user. The point-of-use fluid treatment arrangement comprises a fluid supply source provided by an operator, at least one fluid outlet for providing fluid to an end user, in which the at least one fluid outlet is in fluid communication with and spaced downstream from a point of supply of the fluid supply source, at least one point-of-use or point-of-entry fluid treatment device located at or adjacent a corresponding fluid outlet, and at least one communication unit.

Systems and methods for intensive recirculating aquaculture are provided herein. An example system includes water sourced from a first segment of a saline aquifer, a recirculating aquaculture system receiving the sourced water and producing discharge water, and a water discharge point located within a second segment of the saline aquifer disposed below the first segment of the saline aquifer.

An intelligent monitoring method and apparatus for abnormal working conditions in a heavy metal wastewater treatment process based on transfer learning and a storage medium are provided. During an intelligent monitoring, the abnormal working conditions can be automatically and intelligently recognized by fusing data in the treatment process of the heavy metal wastewater different in source; specifically, a normal sample Y.sup.SD in the treatment process of the heavy metal wastewater with fixed sources and a small number of normal samples Y.sup.TD in the treatment process of the heavy metal wastewater with unknown sources are utilized; and first, a data representation dictionary D.sup.SD of Y.sup.SD is obtained through learning on Y.sup.SD, and then considering different distribution of Y.sup.SD and Y.sup.TD, a transfer learning method is adopted to fuse characters of Y.sup.TD into a dictionary learning process to obtain a dictionary D.sup.TD with higher generalization ability.

A method and system for reducing the concentration of nitrogen-bound nitrate from at least one of groundwater, surface water, or waste water is disclosed. The system includes an algal photobioreactor system. The photobioreactor includes a transparent tubular structure, a medium disposed inside the transparent tubular structure, and alga configured to adhere to the medium. The photobioreactor further includes a pump, and a light source. The method includes providing contaminant-containing water, adding the water to the algal photobioreactor system, adjusting at least one of temperature, ion concentration, CO.sub.2 concentration, pH, light wavelength, ion concentration or light intensity in the algal photobioreactor system to enhance growth of algae, removing water from the algal photobioreactor system, and harvesting the algal biomass. A system and method are also disclosed for reducing the concentration of organophosphates from water via an organophosphate-removing alga.

A solid, non-phosphorus water treatment composition can be used for cooling water treatment applications. The composition can include a polycarboxylic acid, a polymeric dispersant, a soluble corrosion inhibitor, and a fluorescent tracer. The composition can define a solid that is devoid of phosphorus and has a pH effective such that, when the composition is dissolved in water at a concentration of 2 weight percent to form a solution, the solution has a pH within a range from 1 to 5.

The invention relates to a method and apparatus for treating water. Iron is removed biologically from humus-rich water with the solution according to the invention. In the method, the water being treated is conveyed through a filter, which filter comprises filter material. Before the water is conveyed to the filter, the pH value of the water is lowered with an acidification part that is included in the apparatus.

A system separates and in-situ analyzes a discrete sample of multiphase fluid. The system includes a separation vessel having a first inner chamber for separating a discrete sample of multiphase fluid into liquid phases including an aqueous liquid phase and a nonporous liquid phase, and a built-in water analysis unit. The built-in water analysis unit includes an analytical cell disposed inside the first inner chamber of the separation vessel, the analytical cell having a second inner chamber, and at least one probe having a sensing area disposed in the second inner chamber for in-situ analysis of a sample of the aqueous liquid phase that is separated from the discrete sample of multiphase fluid in the first inner chamber and that is channeled to the second inner chamber from the first inner chamber for the in-situ analysis. The second inner chamber is defined inside the first inner chamber.

Provided is a device and method of cleaning a solar panel of a solar boat using, as cleaning water, water externally introduced and compressed during operation of the solar boat. The device includes a water inlet port disposed on the front side of the solar boat, a filtration unit removing impurities from water introduced through the water inlet port during operation of the solar boat, a compression unit compressing impurities-removed water, and a spray nozzle spraying the compressed water to the solar panel.

A chlorinating system includes an electrode assembly comprising a plurality electrode blades, a cap electrically and mechanically coupled to the electrode assembly, and a housing for enveloping the electrode assembly in an interior compartment of the housing. The housing exposes the electrode assembly to an inlet and outlet of the housing. The cap is removable from the housing and allows for the individual replacement of single electrode blades forming the electrode blade assembly.

A method for optimizing filtration in an aquaculture system. The method for optimizing filtration includes, taking at least one sample of matter from an aquaculture system, defining at least one predetermined characteristic to test the sample of matter for, testing the at least one sample of matter, determining if the at least one predetermined characteristic is present within the sample, modifying resource distribution within the aquaculture system, taking at least two samples of matter within the aquaculture system, re-defining at least one predetermined characteristic to test the at least two samples of matter for, testing the at least two samples of matter, determining if the re-defined at least one predetermined characteristic is present within the at least two samples of matter and ensuring the filtration system will retain a state of optimization.