A wastewater treatment system includes two or more wastewater treatment reactors selected from an anoxic wastewater treatment reactor, a flex wastewater treatment reactor, and a hydroponic wastewater treatment reactor in fluid communication with and connecting a wastewater system inlet and a treated wastewater system outlet, each of the anoxic reactor, the flex reactor, or the hydroponic reactor including a reactor inlet for receiving wastewater to be treated and a reactor outlet directing treated wastewater from the anoxic reactor, the flex reactor, or the hydroponic reactor. The system also includes: (i) either but not both of the anoxic reactor or the flex reactor, (ii) a hydroponic reactor if the anoxic reactor is included, and (iii) at least two flex reactors if the hydroponic reactor is absent, and wherein at least one of the flex reactor or the hydroponic reactor includes an intermittent or pulsed aeration device and/or a submerged membrane or submerged root zone that achieves a natural gradient of oxidative states that is similar to oxidative states achieved using the intermittent or pulsed aeration device.

A transitional water treatment wall for kidney dialysis is provided. The transitional wall includes several devices positioned on a mobile frame, the devices establishing fluid communication between a water source, pre-RO treatment equipment, and an RO system. The transitional water treatment wall also provides pressure and temperature control of the water being circulated. The mobile frame of the transitional water treatment wall includes wheels for providing ease of movement of the transitional water treatment wall. The mobile frame also limits space requirements for the various devices. The transitional wall also includes electrical outlets.

An apparatus and method for determining an amount of chemical input, and more particularly to an apparatus and method for determining the amount of a chemical to be added, which is necessary to achieve target water quality, wherein a required chemical concentration can be accurately calculated based on the temperature of the water and the target turbidity of the water includes an information-receiving unit configured to receive at least one of environmental information, chemical information, and water-quality information of the water present in a specific area and a chemical input determination unit configured to derive a multiple regression equation based on the received environmental information, chemical information, and water-quality information and to determine the future input of a chemical that is added to satisfy a target turbidity of the water present in the specific area based on the multiple regression equation.

Disclosed is a method of decomposing ozone in ozone water. According to the present invention, a temperature of ozone water is increased by mixing ozone water with heated water, and the ozone in the ozone water is decomposed into oxygen by the increase in the temperature.

A water delivery control system operates to selectively deliver water from a water source to water use devices. The system includes at least one controller that wirelessly communicates messages with a portable user device. The system includes a water control valve and a motor that is operative to selectively move at least one valve element of the valve. A water meter is operative to measure water flow that corresponds to flow through the valve. The controller is operable to cause the valve to enable or prevent flow through the valve responsive at least in part to water flow data. The controller is operative to determine a water use condition responsive to a water usage pattern, and to cause at least one message to be sent to the portable user device responsive to the determined water use condition.

A flotation cell for water treatment comprising: a hollow cylindrical body comprising an upper opening, a lower opening and a plurality of conduits distributed on an outer surface of the cylindrical body; an upper lid and a lower lid attached to the cylindrical body to cover the upper opening and the lower opening, respectively, of the cylindrical body, wherein each lid comprises a conduit; a band heater located on the outer surface of the cylindrical body, surrounding the cylindrical body; a support structure comprising a plurality of bars for supporting the cylindrical body and the upper and lower lids; and a control unit attached to the support structure.

A water quality monitoring system is provided, including several sensors, several actuators, and an embedded system. The sensors sense environmental parameters and separately output a plurality of sensing signals including the environmental parameters. The actuators change the environmental parameters. The embedded system includes a storage module, a data collection module, a data analysis module, and a control module. The storage module stores a plurality of normal parameter ranges that correspond to the respective environmental parameters. The data collection module is connected to the sensors for receiving the sensing signals. The data analysis module is connected to the storage module and the data collection module to determine whether the sensing signals are abnormal according to the normal parameter ranges and output a determination result. The control module is connected to the data analysis module to control the actuators or output a warning signal according to the determination result.

The invention is about a stabilized electromagnetic base liquid, as well as its preparation method and its application in the high-salt wastewater treatment. The raw material components of the electromagnetic base fluid include: 20-30 parts of alkali metal hydroxides(e.g., as sodium hydroxide); 20-30 parts of non-alkali metal (e.g., as silicon or phosphorus); 2-6 parts of ammonia; 31-140 parts of water; after treatment with a direct electrical current the parameters of the stabilized electromagnetic base liquid are: pH value: 12 to 14; oxidation reduction potential value: −1.0 to −1.8 v; with no corrosivity, confirming the presence of stabilized hydrated electrons (e.sub.aq−−). With the stabilized electromagnetic base liquid, the storage problem of the electromagnetic base liquid is solved, and the large-scale application in the industrial field can be realized, thereby achieving a large-scale high-salt wastewater treatment process with low cost, high recovery rate.

A frac sand separator system includes a sand separator having an inlet fluidly connected to a well for receiving a fracking return mixture from the well. The sand separator is configured to separate water of the fracking return mixture from particulate matter of the fracking return mixture. The sand separator includes an outlet. The frac sand separator system includes a collection container fluidly connected to the outlet of the sand separator for receiving the particulate matter from the sand separator. At least one outlet valve is fluidly connected between the outlet of the sand separator and the collection container. The frac sand separator system includes a computing device operatively connected to the at least one outlet valve. The computing device includes a processor configured to automatically open the at least one outlet valve such that the particulate matter is released from the sand separator into the collection container.

An apparatus for treating water is disclosed. The apparatus comprises a feed tank for receiving water. The feed tank is coupled to a plurality of RF chambers. Each of the RF chambers comprises an inlet and an outlet. The outlet is coupled to a treated water effluent manifold. Further, each RF chamber is coupled to a vacuum manifold. Each RF chamber comprises a recirculation pipe to pump water back into the feed tank. The RF chamber comprises a RF system used for bombarding RF energy at predefined frequencies on the water passing in the chamber tubes in order to liberate chlorine isotope. Subsequently, the water is sent through the outlet to the treated water effluent manifold.