An apparatus for controlling output in a water treatment plant treating water includes: a chemical dosing management part configured to analyze real-time data to determine a control mode of chemical dosing optimization, and provide the determined control mode as a management command; a chemical dosing optimization part configured to analyze the real-time data to derive a control value such that the control value is to set a minimum of a chemical dosage to be dose in the water while a state of treated water of the water treatment plant is maintained in a normal range; and a chemical dosing output control part configured to provide the control value to a water treatment control device for controlling the water treatment plant, according to the control mode of the management command.

A device for selecting an optimal model includes: a model storage part including a seed model storage place in which a seed model is stored, and an optimal model storage place in which an existing optimal model is stored; a model generation part configured to use training data to generate a variable model; and a model evaluation part configured to prepare evaluation data, and use the evaluation data to select a champion model from among a plurality of evaluation target models including the seed model, the existing optimal model, and the variable model by evaluating the plurality of evaluation target models.

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.

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.

A system for dewatering a material comprising a slitter, wherein the slitter receives the material, separates the material into a plurality of clumps, and deposits the plurality of clumps of material substantially evenly on a conveyor belt. The conveyor belt is partially porous to allow water to pass through but preventing material from passing through. The conveyor belt is operable to convey the material from the slitter to a compression zone; the compression zone comprises at least one high pressure press. The compression plates engages the material positioned on the conveyor belt. At least one knife positioned proximate the at least one compression plate operable to remove material from the bottom surface of the at least one compression plate after a compression cycle; and at least one drain positioned under the conveyor belt to carry water removed from the material away from the conveyor belt.

A system for treating water for use in aquatics or recreational facilities is disclosed. The system includes a media filter vessel, a pressure sensor, and a monochromatic light source. A method of treating water for use in aquatics or recreational facilities is also disclosed. The method includes fluidly connecting a media filter vessel to a source of water for use in aquatics or recreational facilities, illuminating a media inside the media filter vessel, observing a monochromatic light source display a first indicator and observing a monochromatic light source display a second indicator. A method of retrofitting a media filter vessel is also disclosed. The method includes installing a pressure sensor on the media filter vessel, installing a monochromatic light source and operably connecting the monochromatic light source to a manual control and to the pressure sensor.

A system and method for regulating and absorbing TFT-LCD organic solvent waste liquid in countercurrent are provided. In the system, each of longitudinal offset pipes of absorbing pipes is disposed between a lower filter plate and an upper filter plate, bottom positions of the longitudinal offset pipes are connected with a sinking-recovery pipe, each longitudinal offset pipe is provided with a photoelectric detector, an activated carbon supply pipe is provided with an activated carbon supply device, the sinking-recovery pipe is connected with a solid-liquid separator, and a wet activated carbon conduction mechanism is provided with a heating-separating device. Activated carbon particles in the absorbing pipe with a certain saturation amount are led out in a non-disassembly-replacement method, the saturated activated carbon is subjected to solid-liquid separating and heating degassing, thus the saturated organic solvent is separated and recovered and the activated carbon particles are recycled.

A water delivery control system operates to selectively deliver water from a water source to water use devices. The system includes a master controller that wirelessly communicates messages with a plurality of slave controllers. The system includes a valve slave controller associated with 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 master controller is operable to cause the valve slave controller 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 a portable user device responsive to the determined water use condition. The user interface slave controller is associated with a user interface.

A pellet manufacturing apparatus according to the present invention includes: a reactor part for producing and discharging either gas hydrate slurry or ice slurry; a pellet forming part which is provided at one side of the outer portion of the reactor part, and which compresses the slurry discharged from the reactor part, so as to form the same into a pellet shape; and a control part for controlling the operation of the reactor part and the pellet forming part, wherein the control part controls the operation of a heating module so that the internal temperature of a first pipe is adjusted to be within a predetermined temperature range when the pellets are formed.