Systems and methods for demand-based water distribution and management are disclosed. The system may determine a first price for each water distributor of a plurality of water distributors based on a plurality of demand factors. The system may transmit a plurality of water distributor locations to a first customer device, each location associated with a respective water distributor. The system may receive a selection of a first water distributor location from the first customer device and, in response, transmit directions to the first water distributor location to the first customer device. In response to the first customer device being authenticated by a first water-distribution device associated with the first water distributor, the system may transmit a signal to the first water-distribution device to transition to an unlocked state to allow the first customer to make a first purchase of water at a first price.

An analytical system and method for periodically monitoring an injection water distribution pipeline for the presence and concentration of formaldehyde or other aldehyde-functional biocide includes pumps, one of which provides a predetermined volume of injection water drawn from the pipeline at a sampling point and the other a predetermined volume of a reagent, preferably a buffered solution of dimedone, from a reagent storage vessel which are mixed and then heated in a chamber to a predetermined temperature to promote formation of any reaction products. The heated reaction mixture is passed to a detection cell and exposed to light of predetermined wavelength which, in accordance with the Hantzsch reaction, molecules having an aldehyde functional group that reacted with dimedone produce a fluorescence-emitting reaction product, the intensity of which is measured and compared to data previously obtained from standard aldehyde-containing solutions.

Disclosed are methods of monitoring the presence of naphthenic acids and related compounds. In particular, the invention provides a method of continuously monitoring naphthenic acids and related compounds that break through a filtration step in a wastewater treatment process.

A groundwater consumption imputation engine computes groundwater consumed by a property based on imputation factors such as evapotranspiration data, meteorological and weather data, irrigation type, soil type, soil moisture and salinity, surface water delivered, channel loss, property size and percentage cultivated. Evapotranspiration data can include evapotranspiration data for a specific crop in a specific geographical region associated with the property, planting density of the specific crop, total planted area for the specific crop, area of dormant land in the property, and crop maturity.

A computer implemented system and method for eliminating hidden operating and financial waste in energy and water consumption and costs with maximum efficiency and economy by systematically analyzing energy and water billing data from almost any source and automatically filtering, diagnosing, and valuating the anomalies in the data.

Embodiments of the present disclosure relate to a water area pollution intelligent monitoring and analysis method and system. The method includes: acquiring, by a receiving module of a water area pollution monitoring and analysis device, water quality data of a monitored water area; inputting, by a processing module in the water area pollution monitoring and analysis device, the water quality data into a water quality feature extraction model in the processing module to obtain water quality features of the monitored water area, where the water quality feature extraction model is previously trained; determining, by an encoding module in the water area pollution monitoring and analysis device, a state diagram of the monitored water area according to the water quality features; and sending, by a routing module in the water area pollution monitoring and analysis device, the state diagram to a preset server.

A water agency management platform provides an exchange for administering groundwater extraction rights in one or more trading-zones. The platform matches offers to trade utilization of groundwater extraction rights (GWRs), and intermediates transfers of the matched GWRs based one or more transfer rules.

Probes for the detection of toxinogenic cyanobacteria, and the use of at least one pair of these probes in a method for the detection of the toxinogenic cyanobacteria in a sample likely to contain the toxinogenic cyanobacteria. Also, corresponding kits including at least one pair probes specific to toxinogenic cyanobacteria.

Methods and systems are provided for verifying hygienic hand cleaning including a wash basin, having a contaminant sensor positioned in proximity to a drain of the wash basin, to measure a level of contamination of rinse fluid leaving the wash basin; and a processor and associated memory having instructions that when executed by the processor implement: receiving a signal from the contaminant sensor indicative of the level of contamination; and responsively, determining the level of contamination and comparing the level of contamination with a contamination threshold to determine a hand washing status.

An auto jartest analyzer includes a plurality of water sample reaction equipment, coagulant providing/controlling equipment and a coagulant concentration analysis device. The coagulant providing/controlling equipment provides coagulant of different concentration to the plurality of water sample reaction equipment to allow contaminants in a water sample of the water sample reaction equipment to precipitate. The coagulant concentration analysis device analyzes turbidity measurements for the plurality of water sample reaction equipment and determines if they meet predetermined analysis criteria, so as to figure out an optimal concentration of coagulant currently required to be added to the water sample. This thus achieves automatic analysis of an addition concentration of coagulant to be added to the water sample, which not only improves operational efficiency but also makes the analysis result more accurate.