Abstract: A method and system for controlling dissolved oxygen levels in a secondary treatment system of a wastewater treatment facility that can employ a membrane bioreactor in which oxygen introduction into mixed liquor is controlled to prevent bulking and minimize generation of extra cellular polymeric substances. The control is exercised by insuring that dissolved oxygen levels within the mixed liquor do not fall below a minimum system level at which microorganism stress would occur. This is done by setting a minimum dissolved oxygen level control point equal to a sum of the minimum system level and an adjustment factor determined on the basis of oxygen uptake rate and time delays inherent in sensing oxygen levels and changes thereof within the mixed liquor. The minimum system dissolved oxygen level can be continually calculated on the basis of an inferred food to mass ratio that would vary with sensed mixed liquor suspended solids.

Abstract: Disinfection device for installation into a water dispenser having an accumulating reservoir for drinking water filled from an external source of drinking water, including a flow-through ozone-air mixture generator provided with an air pump for external air delivery via an air filter to the ozone-air mixture generator. An output of the ozone-air mixture generator is connected with a delivery pipeline for delivery of ozone-air mixture or air inside the delivery pipeline. An electromechanical ultrasonic frequency irradiator is mounted on the delivery pipeline to generate ultrasonic oscillations in the pipeline walls and in water filling the pipeline, and a program control unit controls operation of the ozone-air mixture generator, air pump and electromechanical irradiator for disinfection and cleaning of inner surfaces of the pipeline and water therein. A method for the disinfection of water dispensers is also disclosed.

Abstract: Disclosed is an apparatus and method for the safe and efficient generation of chlorine dioxide. Chlorine dioxide is produced safely and efficiently by diluting a source of chlorite in water to produce less than or equal to 5000 ppm measured as ClO2 while achieving at least 80 wt%, more preferably 90 wt %, and most preferred at least 95 wt % conversion of chlorite anion to chlorine dioxide.

Abstract: A method of wastewater reutilization by which reusable water can be stably obtained from a wastewater. Ozone is added to a wastewater, such as water resulting from sewage treatment, in such a small amount as to result in a residual ozone concentration as measured before membrane filtration of 0.01-1.0 mg/L. Ozone is thus brought into contact with fine solids contained in the wastewater to alter the surface properties of the fine solids so that the solids are easily to coagulate. Thereafter, a coagulant, e.g., PACl, is added from a coagulant addition device (3). The fine solids are coagulated in a coagulation tank (5) or a line mixer and the resultant water is subjected to membrane filtration with an ozone-resistant separation membrane (6) such as ceramic membrane. Thus, reusable water is obtained which has a residual ozone concentration, as measured after filtration through the membrane, less than 0.5 mg/L.

Abstract: A pumpbox apparatus includes a reservoir volume having a first inlet for receiving a feedstock stream and a second inlet for receiving a water stream, the reservoir volume being in communication with a discharge outlet disposed to discharge accumulated liquid from the reservoir volume. The reservoir volume is operable to accumulate the feedstock stream and the water stream in the reservoir volume while withdrawing a discharge stream through the discharge outlet to cause a flow of liquid through the pumpbox. The first inlet defines a first flow velocity region between the first inlet and the second inlet and a second flow velocity region between the second inlet and the discharge outlet. The first flow velocity is lower than the second flow velocity to facilitate flotation of a low specific gravity portion of the feedstock through the first region toward an upper surface of the liquid accumulated in the reservoir volume.

Abstract: Method for cleaning hydraulic liquid in a industrial truck, wherein said industrial truck is an electrically powered industrial truck having a battery as an energy source with a hydraulic system comprising, a hydraulic pump, a hydraulic reservoir, and a return pipe to the hydraulic reservoir with a return filter, wherein the method comprises the steps of, the hydraulic pump is activated for hydraulic activity, the hydraulic pump pumps the liquid for the hydraulic activity and in relation to this return flow through the return filter to the hydraulic reservoir occurs, the hydraulic pump can be activated by means comprised in the industrial truck, when hydraulic activity is not present, by that achieving a circulation to the hydraulic reservoir through the return filter such that sufficient filtration of the hydraulic liquid is reached, further a time Tb for circulation without hydraulic activity can be accumulated and/or a sensor for determining the quality of the hydraulic oil can be arranged in the industria

Abstract: An apparatus for controlling chemical properties of a body of water, the apparatus comprising: a housing, said housing comprising: a water sample collecting subassembly; chemical reagent dispensing subassembly; a water diagnostic subassembly; and a control module, said control module disposed on the housing, said control module comprising: a means for inputting desired functional parameters and water chemical properties into the apparatus; a means for measuring the actual physical conditions of the water; a means for comparing the actual physical conditions of the water to the desired physical conditions of the water; and a means for instructing the system to dispense chemical reagents to the water at a rate and dosage necessary to cause the water to generally achieve the desired physical conditions within a desired period of time and for a desired time period; and a means for displaying the apparatus parameters and water chemical properties in human readable form.

Abstract: The present invention provides a remote monitoring system for monitoring the operation of a fluid treatment system and/or the qualities, characteristics, properties, etc., of the fluid being processed or treated by the fluid treatment system. The system includes a remote computer that may be associated with a database that accesses data transmitted from the fluid treatment system with the data collected, acquired, etc., from one or more sensors placed in the fluid treatment system for measuring fluid quality and/or equipment operation in a fluid treatment system. The remote computer may then analyze or manipulate the data to generate an analysis result or analysis report that may be sent or communicated along with the data and/or any historical or expected information or data to a remote viewing device for viewing by a user. A method is further provided for the operation of the remote monitoring system of the present invention.

Abstract: A process for treating water that includes ammonium. The water is directed to a biological reactor and the quantity of nitrates formed in the reactor and the quantity of ammonium reduced in the reactor is determined. A ratio of the quantity of nitrates formed to the quantity of ammonium reduced is determined. Further, the percentage of ammonium reduced is also determined. The water in the biological reactor is aerated by injecting oxygen into the reactor where the amount of oxygen injected is a function of the ratio and the percentage of ammonium reduced in the reactor.

Abstract: A method for extending the use of water during the production of products for human consumption in food production facilities for an extended period of time of at least two production days and up to seven production days by delivering an initial chemical charge at the beginning of each production day to return the process water to the desired antimicrobial solution concentration to provide acceptable antimicrobial control of the process water over the extended period of time. The method providing acceptable antimicrobial control in the processing of any protein or non-protein based food products that require batch or continuous chilling as part of the production process. The length of time that the water may be used in a processing tank may be dramatically and safely increased before the processing tank is emptied for cleaning, sanitizing and refilling.

Abstract: A method of operating hydrocyclone comprising a separation chamber which in use is arranged to generate an internal air core for affecting a material separation process, comprises measuring both a vibrational parameter of the separation chamber and a stability parameter of the internal air core during operation of the hydrocyclone. The measurements are compared against predefined corresponding parameters which are indicative of a stable operation of the hydrocyclone and an operational parameter of the hydrocyclone is adjusted dependent on the comparison.

Abstract: The present invention concerns a process for treating water and the use of calcium carbonate in such a process. In particular, the present invention is directed to a process for remineralization of water comprising the steps of (a) providing feed water having a concentration of carbon dioxide of at least 20 mg/l, preferably in a range of 25 to 100 mg/l, and more preferably in a range of 30 to 60 mg/l, (b) providing an aqueous slurry comprising micronized calcium carbonate, and (c) combining the feed water of step (a) and the aqueous slurry of step (b) in order to obtain remineralized water.

Abstract: A fluid (i.e., generally water or wastewater) treatment system and associated methods provide for effectively treating the fluid (i.e., generally water or wastewater containing at least a plurality of salts) to provide a separated pure fluid (i.e., generally water) and a separated impurity (i.e., generally a salt). Also provided are a method for detecting or determining the need for a controlled process intervention to prevent the plugging of system components in a fluid (i.e., generally water) treatment system, and a process for preventing the plugging of the system components in the fluid (i.e., generally water) treatment system.

Abstract: The present invention includes a comprehensive replacement fluid system and method for the delivery of regional citrate anticoagulation (RCA) to extracorporeal blood circuits, wherein the system may include an online clearance monitor (OCM) and a circuit effluent online sensor system (OSS) for the continuous determination of patient plasma content of ultrafilterable solutes.

Abstract: The gas control system removes gas from a borehole by generating and collecting an air stream from the borehole using a blower, collecting the gas contained in the air stream using a fuel collector, removing moisture from the gas using a heated dryer, and transporting the gas from the heated dryer to an engine that is at least partially fueled by the gas. The gas control system can include one or more sensors that provide data associated with operating conditions of the gas control system. The sensor data is provided to a manager component, and can be used to evaluate system performance, determine consumption of greenhouse gases and optimize system operations.

Abstract: A method, for cleaning a pool with N vertical walls using a robot, comprising adjusting the robot against the vertical wall of rank n=1. The robot advances along the vertical wall of rank n until the vertical wall of rank n+1 is detected. The robot retracts over a release distance in order to be released from the vertical wall of rank n+1. The robot makes a rotation on itself in order to be adjusted against the vertical wall of rank n+1. Checking whether n is equal to N, in the negative case, the cleaning method continues with an incrementation step where “n” is incremented by “1”, and then looping onto the advancement step. In the positive case, the cleaning method continues with a finishing step where the robot advances along the vertical wall of rank “1” until the vertical wall of rank “2” is detected.

Abstract: A novel composition for a photocatalyst Fe doped ZnO nano-particle photocatalyst that enables the decontamination process by degrading toxic organic material such as brilliant cresyl blue, indigo carmine and gentian blue by using solar light is described. In the current disclosure method of making a specific size of the nano photocatalyst is described. Characterization of the photocatalyst, optimal working conditions and efficient use of solar light has been described to show that this photocatalyst is unique. The process described to use the photocatalyst to degrade toxic organic material using the solar light to activate the photocatalyst is cost efficient and cheap to clean our water resources.

Abstract: Disclosed are methods of custom stabilization of the hydrogen peroxide used in the safe in-situ treatment of soil and groundwater. In one embodiment, disclosed is a method of in-situ chemical oxidation treatment of soil and/or groundwater wherein the hydrogen peroxide has been stabilized with carboxylate salt (e.g., sodium citrate, sodium malonate, or sodium phytate).

Abstract: This disclosure relates to a method of recovering and concentrating an aqueous N-methylmorpholine-N-oxide (NMMO) solution.

Abstract: A mobile liquid treatment station and operation methods are disclosed, the station having a mobile treatment unit and separate mobile treatment management unit. A plurality of serial containment compartments at the treatment unit for performance of chemical dosing and solids separation are provided and are monitored with sensors. The management unit includes a plurality of chemical dosing platforms, and a power and processing assembly. A bus links the units for data and control signal transfer and chemical feed lines are connected between the units for transfer of dosing chemicals.

Abstract: A liquid processing system has: processing units of n stages in which each processing unit includes one or a plurality of processing lines, each processing line includes an ultraviolet ray irradiating unit, and the number of processing lines of an m-th stage processing unit is larger than the number of processing lines of an m+1-th stage processing unit; and adjusting section which adjusts an output of an ultraviolet ray irradiating unit provided to a processing unit of a predetermined stage. An output of an ultraviolet ray irradiating unit provided to a processing unit of a stage other than the predetermined stage is each fixed, and the adjusting section adjusts the output of the let ray irradiating unit provided to the processing unit of the predetermined stage such that a liquid processed in an n-th stage processing unit of a final stage is in a desired processing state.

Abstract: The present invention relates to a system (100) for monitoring an environmental condition in a storm drain (102, 104), the system comprising: A storm drain (102, 104), containing a filter device (134) comprising a filter unit (130) and a floating carrier (132) for carrying the filter unit (130). At least one sensor (106, 108, 110, 112, 114) arranged in the storm drain (102, 104), for determining an environmental condition in the storm drain (102, 104). Wherein the at least one sensor (106, 108, 110, 112, 114) being arranged in communication with a sub node (116, 118) for transmitting data regarding the determined environmental condition in the storm drain (102, 104) to the sub node (116, 118). Wherein the sub node (116, 118) being arranged in communication with a main node (120) for transmitting data regarding the determined environmental condition in the storm drain (102, 104) to the main node (120).

Abstract: This patent application relates generally to processing devices in the medical device area.

Abstract: A coupler includes a conductive polymer material that is so constructed and arranged to join tubing, wherein the conductive polymer material includes a conductive polymer component selected from the group consisting of polyaniline, polypyrrole, polythiophenes, polyethylenedioxythiophene, poly(p-phenylene vinylene) and mixtures thereof.

Abstract: A grey water dividing and treatment system is provided. A drain system of the grey water dividing and treatment system receives grey water from a grey water producing source. A grey water dividing apparatus of the grey water dividing and treatment system divides the grey water received from the drain system into a number of cells, and determines a contamination level of each of the cells. Grey water treatment tanks of the grey water dividing and treatment system receive the grey water from the grey water dividing apparatus based on the determined contamination level of each of the cells and treat the grey water.

Abstract: This disclosure relates to early detection of low bicarbonate level. In certain aspects, a method includes receiving a first signal from a conductivity detector connected to a line through which a solution of salt concentrate and fluid flows and determining a first conductivity of the solution based on the first signal. The method also includes receiving a second signal from the conductivity detector at a time after receiving the first signal, determining a second conductivity of the solution based on the second signal, and determining whether the second conductivity is less than the first conductivity by at least a threshold amount.

Abstract: Disclosed is an operating logic of an organic material thermal hydrolysis system. One or at least two reactors are used and controlled according to a control program based on an operating logic stored in a PLC or a micro-computer to improve digestion efficiency and to minimize an amount of a sludge dehydrated cake in a dehydration process after the digestion process has been performed. Waste heat generated from a reactor is used to preheat the conditioning tank to save operating energy, and continuously generated waste heat is continuously used.

Abstract: A transmission assembly has a clutch or brake, an oil filter, an electrically driven hydraulic pump and a controller controlling the pump. In the method for operating an oil filter system for transmission oil, the actual contamination level Va (%) of the transmission oil is determined indirectly by a contamination model Va (%)=Vstart(IW %)?A (%)+B (%)+C (%), wherein Vstart (IW %) is a starting contamination value, A (%) depends on the hydraulic pump flow rate, B (%) depends on a clutch energy input, and C (%) depends on a transmission performance. When a contamination threshold value Vs (%) is exceeded, the hydraulic pump is switched on, until the actual contamination level Va (%), after decrementing by A (%) in the contamination model, is equal to or less than the contamination level threshold value Va (%) minus a fixed hysteresis value VH (%).

Abstract: A method and apparatus for producing biogas from organic matter including a container (1) which is charged with fermentation substrate by a delivery system (13), and at least two stirring mechanisms (2) arranged in the container, the stirring mechanisms having propellers (3) which are rotated and generate mostly horizontal currents of the fermentation substrate in the container. The propeller diameters, the propeller geometries, and the positions of the propellers in the container are selected such that a shared mixing zone of the medium is generated in the container. Data for determining the mean speed and/or the viscosity of the medium in the mixing zone are detected and transmitted to a control unit (4) which varies actuating variables which modify the power input of the stirring mechanism into the mixing zone and/or the composition and/or the flow behavior of the container contents.

Abstract: The invention relates to a water treatment using an UV AOP. The invention combines an UV AOP (11) applied to a water containing a free chlorine species (8) with a chemical post treatment (14), a quenching. The quenching (14) is applied to said water (9) after the UV AOP (11) able to reduce a remaining content of said free chlorine species in said water (9).

Abstract: The present invention relates to a process for the treatment of liquid effluents laden with hydrocarbons, which comprises: feeding the effluents into a treatment tank; supplying the treatment tank with a reversible sorbent having a defined particle size; mixing the effluents with the reversible sorbent in the treatment tank in order to load said reversible sorbent with the hydrocarbons in the effluents; removing the hydrocarbon-laden reversible sorbent from the top of the treatment tank; extracting the treated effluents from the bottom of the treatment tank; and separating the hydrocarbons from the laden reversible sorbent from the treatment tank.

Abstract: Some embodiments provide a recirculating aquaculture system for aquatic life. The system includes a culture tank, a first sensor configured to measure a current ammonia concentration in the culture tank, a biofilter in fluid communication with the culture tank, a variable speed pump configured to circulate water through the culture tank and the biofilter, and a controller in communication with the first sensor and the variable speed pump. The controller is configured to retrieve a maximum ammonia concentration, retrieve the current ammonia concentration from the first sensor, and compare the current ammonia concentration to the maximum ammonia concentration. The controller is also configured to control the variable speed pump to increase a current water flow rate through the system when the current ammonia concentration is greater than the maximum ammonia concentration.

Abstract: A method for fluid treatment that provides variable or alternative regeneration cycles within the same fluid treatment device. The duration of all stages of the regeneration cycle can be adjusted depending upon the amount of fluid treated so that regenerant resources such as water are not underutilized and waste is not discharged unnecessarily into the environment.

Abstract: Several methods and devices are provided herein to generate shock waves that are used in the oil industry for well drilling, hydrocarbon or gas exploitation, fracking process or improved oil recovery (IOR), enhanced oil recovery (EOR), cleaning of process waters, oil spills byproducts and oil pipes, which can be used as independent systems or as auxiliary systems concomitantly with other existing technologies. The different devices consist of generating shock waves utilizing either one or more laser sources, or a self-generated combustible gas supply, or a micro-explosive pellet, or piezocrystals, or a piezofiber composite structure.

Abstract: A sono-molecular-conversion device and method for effecting nitrification of ammonia in water, the method including feeding the water containing ammonia through a sono-molecular conversion device including a plurality of ultrasound transducers; and applying ultrasonic energy to the water containing ammonia by the sono-molecular conversion device to ultrasonically collapse microsized bubbles with transient cavitation in the water containing ammonia to effect nitrification of ammonia therein by sono-molecular-conversion.

Abstract: A process for disinfecting a treatment fluid is disclosed, including the step of admixing an aqueous solution comprising two or more oxidants generated via electrolysis of a salt solution with a treatment fluid. The mixed oxidants may be generated on site, using a containerized system.

Abstract: A method of producing sterile water from raw water during a production cycle in a production plant P, including adding a disinfectant to the produced sterile water during the production cycle to permanently monitor the condition of the sterile water and/or the production plant, and determining and evaluating a reduction of concentration of the disinfectant directly in the production stream. In a production plant suited for carrying out the method, a sterile sensor is provided directly in the production stream through which the reduction of concentration of the disinfectant added to the produced sterile water can be permanently measured and evaluated to provide a sterility evidence.

Abstract: Systems and methods are provided for automatically adjusting the operational parameters of a blood separation procedure. A blood separation device has an inlet for passing fluid thereinto and an outlet for removing fluid therefrom. A pump system is provided for moving fluid into and out of the device. In use, blood is conveyed into the device, where platelets are separated from at least a portion of the blood. A controller determines the amount of platelets in the device. Based at least in part on the amount of platelets in the device, corrective action is taken to avoid platelet aggregation in the device. The corrective action may be conveying an elevated amount of anticoagulant into the blood and/or the device and may be initiated when the determined amount of platelets approaches, meets, or exceeds a threshold predicted likelihood of platelet aggregation.

Abstract: A flocculation-magnetic separation is provided which reduces the usage amount of flocculation agents as well as the usage amount of magnetic powders and realizes an improvement in the quality of treated water.

Abstract: A process and system for determining injection rate of treatment chemicals to eliminate or reduce downstream noxious gas emissions in a wastewater collection system. The process and system provides for treatment chemical injection at a pumping station or directly on a force main wherein dosage is calculated based on current and historical data relative to the pumping station.

Abstract: A decontamination system for decontaminating at least one contaminant in a process stream. Decontaminant liquid is dispersed into the process stream using atomization. A controller detects contaminant levels in the process stream and adjusts the flow of decontaminant fluid into the process stream in response.

Abstract: Provided are methods of inhibiting microbial fouling and improving efficiency in biocide dosing in an industrial process containing an aqueous liquid having a biocide demand. In exemplary embodiments, the methods comprise treating an aqueous liquid having a biocide demand with a biocide, monitoring the biocide demand of the aqueous liquid, and filtering a stream of the aqueous liquid. The filtering may be performed in a full-flow or side stream manner.

Abstract: The invention is directed towards methods and apparatus for improving the accuracy of monitors measuring the property of spray water used to cool a molten metal strand in a continuous casting operation. The method utilizes a highly effective slid-sieve to remove particles from sample water that would otherwise jam the monitor or would break the monitor. This particle removal results in the monitor providing more accurate measurements which in turn results in lower operating expenses, reduced maintenance costs, and production costs.

Abstract: The system and process of the present invention will consist of specific monitors in tandem with interface probes reading in multiple locations, divert valves which are operated by the readings of the interface probes and online ppm monitors. Such monitors would function in conjunction with these leading indicators through a software program and computerized logic controller used to manipulate the controls of this system.

Abstract: The present invention relates to a method for assessing a patient's sensitivity to fluid removal from the patient's vascular system or to fluid replacement or addition with regard to the patient's hydration state, the method comprising the step of determining a value reflecting the distribution of fluid between at least two distribution spaces of the body of the patient or changes thereof from measured or calculated values, and assessing whether the value fulfils at least one criterion. It also relates to a controller, an apparatus, a device, a digital storage device, a computer program product, and a computer program.

Abstract: A system for treating wastewater includes an aeration tank having a plurality of air diffusers located within the tank. Air delivery equipment provides air to the tank via air diffusers. An ammonia sensor located near or upstream of the wastewater inlet is used by a controller to measure the ammonia content of the wastewater at the inlet. The controller then modifies the actual airflow provided to the tank based on a prediction of the level of air flow required to fully treat the wastewater before it reaches the outlet and controls the air source to provide the predicted level of air flow.

Abstract: A method for optimizing drilling fluids by creating a proper particle size analysis and distribution curve of particle sizing within drilling fluid. The particle size distribution curve is maintained with a maximum particle sizing of 6 microns so as to not allow for coarser drilled solids to degrade beyond the point of mechanical separation to prevent a build-up of low gravity solids that can no longer be removed from the drilling fluid during the drilling operation due to their size. An optimal drilling system requires that drilling fluids be modified through the following process to attain the appropriate particle sizing distribution to: make the most efficient use of the drilling operation, reduce the amount to drilling fluids utilized, and reduce formation damage. The method generates corrective actions to modify the drilling fluids or adjust solids control equipment parameters, to obtain a unique particle size distribution throughout the drilling process.

Abstract: A seawater oxidation basin system (42) for treating effluent seawater is described. The effluent seawater is generated in the removal of sulfur dioxide from a process gas by contacting the process gas containing sulfur dioxide with seawater. The oxidation basin system (42) includes: —a first supply pipe (64) for distributing oxidation enhancing sub stance in the effluent seawater (75), —a second supply pipe (66) for distributing oxidation enhancing sub stance in the effluent seawater (75), and —a control device (76, 78) for controlling a first amount of oxidation enhancing substance supplied by one of the first and second supply pipes (64, 66) independently from a second amount of oxidation enhancing substance supplied by the other one of the first and second supply pipes (64, 66).

Abstract: The present invention relates to methods and systems for optimization of dilution of a viscous starting material to isolate and/or concentrate the product of interest from the starting source material such that the process minimizes the volume of diluent and the total volume of the waste stream generated during the process as well as maximizing the yield of desired product. The system employs cross-flow filtration modules with sub-channels that are equidistant to the inlet and outlet of said modules and such modules are characterized by optimal channel height, optimal transmembrane pressure, etc., which are selected in order to achieve the best combination of product quality and production yield.

Abstract: A method of removing unwanted molecules from blood includes (i) directing a flow of blood from a patient through a first hemofilter, (ii) removing a volume of fluid from the blood using the first hemofilter, (iii) combining a volume of first substitution fluid with an outflow from the first hemofilter, the volume of first substitution fluid being substantially equal to the volume of fluid removed from the blood using the first hemofilter, (iv) directing the combined first hemofilter outflow and the first substitution fluid volume from the first hemofilter through a second hemofilter, (v) combining a second substitution fluid with outflow from the second hemofilter, and (vi) returning the combined second hemofilter outflow and the second substitution fluid volume from the second hemofilter to the patient.