Abstract: A liquefied fluid supply system is a liquefied fluid supply system of supplying a nozzle with a liquefied fluid that vaporizes after spraying and includes: a supercooler that cools the liquefied fluid to a temperature lower than a saturation temperature thereof and makes the liquefied fluid into a supercooled liquid; and a booster that boosts in pressure the liquefied fluid made into the supercooled liquid by the supercooler and supplies the liquefied fluid to the nozzle.

Abstract: This disclosure discloses an apparatus of treating a river, comprising a river bed sludge suction device, a container-type sand-stone refuse separation device, a container-type dehydration device, a container-type pulverization device, a storage container, a container-type drying device, a container-type carbonization device, a container-type flocculation device, a container-type precipitation device, a container-type activated coke filtration and adsorption device, a container-type power generation device, a container-type operation and control chamber, and a cleaning ship for floating debris and river bank refuse. This disclosure discloses a method of treating a river using the apparatus described above where a biochar is produced from the separated, dehydrated and dried sludge.

Abstract: A packed bed catalyst in a pressurized vessel/reactor during contact with a dioxide species precursor enhances catalytic conversion of the precursor to the dioxide species, compared with the same catalytic conversion performed in a non-pressurized vessel/reactor.

Abstract: A method of treating biofilm having a protective extracellular polymeric substance (EPS) membrane attached to a surface applies chlorine dioxide to the biofilm attached a surface to disrupt the EPS membrane of the biofilm and thereby expose microbes in the biofilm to microbicide attack and death without detaching the biofilm from the surface.

Abstract: Systems for generation of liquid water are provided. In embodiments, the systems comprise a thermal desiccant unit comprising a porous hygroscopic material located within a housing including a fluid inlet and a fluid outlet, a working fluid that accumulates heat and water vapor upon flowing from fluid inlet of the housing, through the porous hygroscopic material, and to the fluid outlet of the housing, a condenser comprising a fluid inlet and a fluid outlet for condensing water vapor from the working fluid; an enthalpy exchange unit operatively coupled between the thermal desiccant unit and the condenser, wherein the enthalpy exchange unit transfers enthalpy between the working fluid output from the thermal desiccant unit and the working fluid input to the thermal desiccant unit, and, wherein the enthalpy exchange unit transfers enthalpy between the working fluid output from the condenser and the working fluid input to the condenser.

Abstract: This disclosure is related to systems, methods, apparatuses, and techniques for generating water using waste heat. In certain embodiments, a system includes a water generating unit and a waste-heat-generating-system. The water generating unit can be configured to generate the water and comprises a desiccation device and a condenser coupled to the desiccation device. The waste-heat-generating-system can generate the waste heat when operating or is use. The water generating unit can be configured to use waste heat generated by the waste-heat-generating-system to generate the water.

Abstract: This disclosure relates to techniques for producing liquid water from ambient air. In certain embodiments, a system includes a regeneration fluid pathway configured to receive a regeneration fluid and a thermal unit configured to heat the regeneration fluid. The system can further include a continuous desiccant unit that comprises an adsorption zone and a desorption zone, as well as a batch desiccant unit that includes a regeneration inlet and a batch desiccant housing. The batch desiccant housing can include a batch desiccant inlet configured to input the ambient air, a batch desiccant outlet configured to output a batch output fluid, and a batch desiccant material. A condenser unit can be configured to produce liquid water from the regeneration fluid, and the system can maximize a water production rate of the condenser unit based on an amount of heat carried by the regeneration fluid.

Abstract: A method and apparatus use conductivity to control the dosing of various chemical additives used in the water treatment industry by modulating the chemical additives within threshold setpoints. Conductivity directly correlates to concentration of chemical additives. This correlation is used to modulate the dosing rates of chemical additives into a process water stream to consistently regulate and balance chemical additive concentration within the process water stream. For example, the method and apparatus dose chlorine dioxide precursor solutions into a process water stream to generate a consistent concentration of aqueous chlorine dioxide.

Abstract: A method for forming a ceramic membrane module system includes disposing at least one membrane within a housing, disposing at least one sealing pad adjacent to the membrane, and disposing at least one drive plate assembly adjacent to the at least one sealing pad. The method further includes coupling the at least one drive plate assembly with the housing, applying force to the sealing pad with the drive plate assembly, sealing the capillaries of a membrane end with the at least one sealing pad and forming a seal between the at least one sealing pad and the membrane, and disposing potting material into the housing without plugging more than 15% of the capillaries with the potting material.

Abstract: This disclosure relates to improved devices, systems and methods for detecting and measuring oxidizing compounds in test fluids. Certain embodiments include a measurement device configured to apply a constant current to the test fluid and measure a reference voltage indicating an electrochemical potential at which electrolysis occurs in the test fluid. The measurement device is further configured to measure a second voltage indicating an oxidizing potential of the test fluid, and to calculate an oxidizer concentration measurement indicating the concentration of the oxidizing compound in the test fluid based on a voltage difference between the reference voltage and the second voltage.

Abstract: This disclosure relates to systems and methods for controlling treatment of water with ozone. The systems and methods can utilize one or more processing modules and one or more non-transitory storage modules that are configured to store computing instructions. Execution of the instructions can cause the one or more processing modules to perform acts of: generating ozone; and applying the ozone to water. The act of generating the ozone can include: controlling a quantity of the ozone generated; and controlling when the ozone is generated.

Abstract: Electronic systems for controlling submersible pumps are provided herein. In certain configurations, a pump system includes three or more submersible pumps used for pumping fluid from a reservoir, sensors used for generating sense signals indicating a fluid level of the reservoir, and a control circuit for selectively activating the pumps based on the sense signals so as to control pumping of fluids from the reservoir. In certain implementations, the control circuit is operable in a plurality of user-selectable operating modes associated with different pump activation sequences in response to the fluid level of the reservoir rising.

Abstract: A controller can be configured to control a system for extracting liquid water from air comprising a thermal unit, a primary desiccant wheel, and a regeneration fluid path. The controller can comprise a sensor, a motor, and a microcontroller coupled to the sensor and the motor. The microcontroller can be configured to determine a water extraction efficiency based on at least one signal received from the sensor, and also can be configured to maximize the water extraction efficiency by adjusting a speed of the motor in response to the determined water extraction efficiency.

Abstract: Systems and methods for producing water from process gas are provided herein. The systems include a water generating system that adjusts the pressure and temperature conditions surrounding a hygroscopic material in order to release water vapor generated by exposure of the hygroscopic material to the process gas.

Abstract: This disclosure relates to improved techniques for detecting and measuring oxidizing compounds in test fluids. Certain embodiments can include a measurement device that can be configured to apply a constant current to the test fluid and measure a reference voltage indicating an electrochemical potential at which electrolysis occurs in the test fluid. The measurement device also can be configured to measure a second voltage indicating an oxidizing potential of the test fluid, and to calculate an oxidizer concentration measurement indicating the concentration of the oxidizing compound in the test fluid based on a voltage difference between the reference voltage and the second voltage.

Abstract: A method for manufacturing a substrate with less warpage includes a step of forming SiC film 121 on a surface of Si substrate 11, a step of removing bottom surface RG2 which is at least a part of the Si substrate 11 contacting with the SiC film 121, and a step of forming another SiC film on a surface of SiC film 121 after the step of removing the bottom surface RG2.

Abstract: Applicant's faradic porosity cell combines adsorption (physical and capacitive) and faradic immobilization of a target species by optimizing electrode porosity, applied E, and Pourbaix operating regions. The optimization parameters are (i) physical adsorption; (ii) capacitive adsorption; (iii) electrochemical pH modulation; (iv) electrochemical peroxide (H2O2) generation; (v) electrodeposition (e.g., electroplating, electrophoretic deposition); (vi) electrochemical oxidation or reduction; (vii) precipitation; (viii) pore mouth diameter profile, and (ix) electrode spacing, and (xi) flow-by vs. flow-through vs. carbon block cell design.

Abstract: As an example embodiment, a system may detect water flow in a well water system and may responsively trigger a pump to inject a chlorinating substance into untreated water from the well. Further, the system may include a contact reservoir that allows the water and the chlorinating substance to combine. In this way, the chlorinating substance is drawn only when needed, but is given the opportunity to achieve time in solution with the untreated water. As a result, bacteria in untreated water may be dispatched, while other organic substances in the untreated water are given the opportunity to settle to the bottom of the contact reservoir. A static mixer may be used to mix the chlorinating substance and the untreated water prior to entering the contact reservoir and/or while in the contact reservoir.

Abstract: Systems and methods for generating water for an end user are provided herein. The systems include a water generating unit that utilizes and/or controls internal heat sources, as well as external heat, electricity, and/or fluid sources, in response to ambient conditions. The systems may be monitored, optimized, and controlled remotely.