A system is provided for tracking, in a distributed water infrastructure, water usage by category. The system may comprise at least one processor configured to receive from at least one sensor associated with the distributed water infrastructure signals indicative of water usage in the distributed water infrastructure. The system may, based on the signals indicative of water usage, construct a plurality of profiles. The system may assign each profile to one of a plurality of water usage categories. The system may collect, from the at least one sensor, signals indicative of water usage for substantially all water delivered through the distributed water infrastructure in a time period. The system may construct a plurality of water usage profiles in the aggregate, encompassing substantially all water delivered through the distributed water infrastructure in the time period. The system may assign each constructed water usage profile to one of the plurality of water usage categories. The system may output, for display, water usage for the time period for each of the plurality of water usage categories.

A system is provided for tracking usage of a plurality of water appliances in a distributed water infrastructure. The system may comprise at least one processor configured to receive, from a location in the distributed water infrastructure upstream of the plurality of water appliances, historical water usage measurements; determine from the historical water usage measurements at least one unique water usage signature associated with each of the plurality of water appliances; receive, from the location in the distributed water infrastructure upstream of the plurality of water appliances, current water usage measurements; determine from the current water usage measurements at least one current water usage signature; compare the current water usage signature with at least one of the unique water usage signatures stored in memory to determine a match; and, based on the signature match, ascertain an identifier of a water appliance in current use.

An automated total organic carbon analyzer is described. Embodiments of the system include two features, namely the development of a selective oxidation reactor to oxidize organic contaminants to their corresponding organic acids, and the measurement of the organic acids individually by chain length using an electroanalytical detector. Combining this electroanalytical approach with sequential detection capabilities (such as spectrophotometry) can expand the instrument capabilities by providing organic contaminant speciation. The described reactor performs selective oxidation of organic carbon to organic acids followed by complexation with a proprietary ligand, then selective detection using electroanalytical accumulation and desorption of organic acids performed at an electrode surface.

A sewer pipe inflow and infiltration diagnosis method based on a distributed fiber-optic temperature measurement system is provided. The inflow and infiltration diagnosis method includes the following steps: S1: transmitting, by an optical time-domain reflectometer, an original optical signal to a temperature sensing fiber-optic cable provided in a sewer pipe; S2: feeding back, by the temperature sensing fiber-optic cable, a modulated optical signal to the optical time-domain reflectometer due to a temperature effect; S3: subjecting the modulated optical signal to photoelectric conversion, so as to acquire binary information; S4: converting the binary information into decimal information; S5: drawing a spatiotemporal map of a water temperature; and S6: eliminating a background noise value, identifying an abnormal water temperature point, determining an inflow and infiltration point of the sewer pipe, and determining an abnormal inflow and infiltration point of the sewer pipe.

A system and method for controlling microbiological growth in a water system and premise plumbing system which uses stabilized hydrogen peroxide as a disinfectant and maintains water energy matrix control. Maintenance of stable hydrogen peroxide residual in the system in combination with active temperature monitoring enables better control of the water energy matrix and reduction of hot water temperature while maintaining microbiological control.

A system is provided for determining whether a specific water appliance is malfunctioning. The system may comprise at least one processor configured to detect, from at least one sensor in a distributed water infrastructure upstream of the plurality of water appliances, a plurality of normal water usage profiles; associate at least one of the plurality of profiles with each of the plurality of appliances; detect at least one current water usage profile; and compare the at least one current profile with at least one of the stored profiles to determine a corresponding identity of an associated appliance and to determine if a deviation exists between the stored profile for the identified appliance and the at least one current profile. The deviation may be reflective of a potential malfunction in the associated appliance. The system may initiate remedial action if the deviation, reflective of a potential malfunction, is determined.

A monitoring system and method for any type of fluid system. Exemplary fluid systems include: sanitary and/or storm sewer systems; hydrological power generation, heating and cooling systems; energy exploration, excavation and transmission, specifically hydraulic fracturing known as fracking. The system and method utilize chemical sensors and other detection devices, a power source and circuitry to communicate with hand-held devices and/or other local or remote data terminals. Since sewers and other water infrastructure are often used to dispose, transport, store and transform liquids or other materials in addition to human waste and/or waste fluids from other human activity, monitoring effluent and chemical composition of liquids can provide data useful for a wide range of purposes.

A water hygiene improving system and method are provided which may include and utilize one or more water hygiene improving devices which may be coupled to a building water supply network at any number of locations so that water passing through each water hygiene improving device is returned to the building water supply network. The water hygiene improving device may include one or more membrane filtration systems and optionally one or more bioreactors. The system and method include a new and innovative approach for surviving or improving water hygiene within the whole water supply network of new or existing buildings, for prevention of their contamination with Legionella or other pathogens, general limitation of biofilm growth and their negative effects on water hygiene, also at point of use (POU), and water distribution within new or existing buildings by limitation of incoming nutrients, bacteria and other microorganisms at point of entry (POE) of buildings or at other locations of the water supply network within the building.

A system separation device with at least one pressure-proof tank for containing a liquid that forms a predetermined liquid level in the tank, above which level there is a gas cushion. The device contains an inlet in the upper region of the tank for fluidly feeding the tank from a first fluid system, and an outlet in the lower region of the tank for forwarding the liquid to a second fluid system. To prevent the germ-infestation of the inlet, at least one germicide material is arranged in the region of a gas cushion above the liquid level.

The present invention discloses a metal strip winding continuous reinforced thermoplastic composite pipe. The present invention adopts a method designed for grouping the winding metal strips to rationally distribute the winding mode of the metal strips, and at the same time, increases the hoop strength and axial strength of the pipe by using the feature of high strength of the metal strips, thereby improving the compressive capacity of the pipe; there is no bonding between the metal strip reinforcement layers, which improves the flexibility of the composite pipe and reduces the relative slippage between the metal strip layers; the production process is simple, and requirements for the equipment investment are small, thereby greatly reducing the manufacturing cost and ensuring the flexibility and seismic resistance of the pipeline.