An water providing apparatus includes a input portion for receiving untreated water, a treatment portion for treating and outputting treated water having a UV treatment module for reducing pathogens, a filtering mechanism for reducing physical and chemical impurities, a UV analysis module for determining levels of the impurities in the untreated water and for determining levels of impurities in the treated water, a processing unit for determining whether the levels of impurities in the treated water exceed a threshold, a reporting module for outputting the levels of the impurities in the untreated and treated water to a remote monitoring service, and a water output portion for providing the treated water if safe, and for inhibiting output of the treated water if unsafe.

A central controller is used in a treatment method and system for removing at least one of nitrogen or phosphorus from wastewater. Based on data received from a plurality of sensors, each of which is coupled to a component of a wastewater treatment system, a control signal is sent from the central controller to at least one chemical delivery system, which dispenses at least one chemical compound into the wastewater in an amount effective to reduce the level of nitrogen or phosphorus in the wastewater.

A method for determining an optimal dose of coagulant for raw water includes a step of determining a value, for the raw water, of a first organic parameter; a step of determining a value, for the raw water, of a second mineral parameter; a step of determining a class of water for the raw water, characterized by the value of the first organic parameter and the value of the second mineral parameter; a step of determining a value, for the raw water, of a third organic parameter; a step of defining a target value, for the clarified water, of the third organic parameter; a step of selecting a function between the third organic parameter and an added dose of coagulant, said function being selected for the class of water and for the value, for the raw water, of the third organic parameter; a step of using the function to determine a first dose of coagulant in order to reach the target value.

A system includes memory banks that store data and a data path coupled to the memory banks that transfers the data. The system also includes a latch that gates the data path based on a clock signal in the system. The system further includes interface circuitry coupled to the data path that sends an instruction to the memory banks to transmit the data on the data path in response to receiving a first rising edge of the clock signal. The interface circuitry also outputs gated data in response to receiving a second rising edge of the clock signal. The latch gates the data path to store the gated data in response to receiving a falling edge of the clock signal.

A wastewater treatment system including, storing in a storage unit, a wastewater storage tank for storing wastewater containing organic matter, an ozone treatment device for treating wastewater with ozone, thereby reducing the molecular weight of organic matter contained in wastewater, a wastewater circulating structure for conveying wastewater stored in the wastewater storage tank to the ozone treatment device and circulating the ozone-treated wastewater back into the wastewater storage tank, and a biological treatment tank for bringing aerobic microorganisms into contact with wastewater, conveyed from the wastewater storage tank, which contains the ozone-treated wastewater, thereby reducing organic matter contained in wastewater.

A method for cyanobacteria removal in an aqueous solution, includes a first main step of determining a percentage of coagulable dissolved aromatic organic matter to remove corresponding to a cyanobacteria percentage concentration to remove, a second main step of determining an optimal coagulant dose corresponding to the determined percentage of coagulable dissolved aromatic organic matter to remove and a third main step of applying the optimal coagulant dose as the adjusted coagulant dose for cyanobacteria removal. The invention may comprise an evaluation of cyanobacteria concentration in the aqueous solution. The invention may comprise a metabolite removal step adapted for removing dissolved cyanobacteria metabolites, comprising applying a powdered activated carbon dose/contact time couple as by determining at least one Freundlich coefficient for each metabolite type in the aqueous solution.

A computer-implemented method includes controlling an instrument to measure a fluorescence emission spectrum of a sample including a first peak emission wavelength and at least a second peak emission wavelength, emitted in response to an excitation wavelength and controlling the instrument to measure an absorbance obtained at the excitation wavelength of the sample. The method may include determining, using the computer, a ratio of the measurements at either the second peak emission wavelength, or a sum of measurements at a plurality of peak emission wavelengths including at least the first peak emission wavelength and the second peak emission wavelength, to the first peak emission wavelength, and calculating, using the computer, a value for a quality parameter based on a combination of at least the ratio and the absorbance measurement. The method may include controlling an associated process based on the quality parameter.

A treatment device includes a base having a battery, a UV-LED for providing UV-C light during a UV sterilization process, LEDs for providing visible light during the UV sterilization process, and a controller for initiating the UV sterilization process, a translucent ring on the base for receiving the visible light from the LEDs and outputting it to the user, a first coupling structure on the base, a UV transmissive material above the UV-LED module, and a water storage removably coupled to the base having a sidewall structure for confining water, a second coupling structure below the sidewall structure for coupling with the first coupling structure to thereby create a water-tight seal between the water storage and the base, and a translucent material disposed upon the top opening of the water storage for receiving the visible light from the LEDs and outputting it to the user.

A computer-implemented method for determining a water treatment parameter includes receiving, by a computer, measurements of a fluorescence emission spectrum of a water sample including a first peak emission wavelength and at least a second peak emission wavelength, emitted in response to an excitation wavelength, receiving, by the computer, an absorbance measurement obtained at the excitation wavelength of the water sample, determining, using the computer, a ratio of the measurements at either the second peak emission wavelength, or a sum of measurements at a plurality of peak emission wavelengths including at least the first peak emission wavelength and the second peak emission wavelength, to the first peak emission wavelength, and calculating, using the computer, a value for the water treatment parameter based on a combination of at least the ratio and the absorbance measurement.

This application relates to an oxygen infusion module for a system and method of treating wastewater wherein an oxygen infusion system is used to supersaturate wastewater before aerobic biological processes, wherein oxygen is transferred to the wastewater free of oxygen bubbles and achieves a reduction in power demand for the aeration process of wastewater.