Abstract: An embodiment provides a method for measuring peracetic acid concentration in an aqueous solution, including: combining, in a reactive solution, 4-(methylthio)aniline and at least one reactive species to produce a chromophore, wherein the at least one reactive species comprises a chromotropic acid disodium salt; placing the chromophore in an aqueous solution, wherein the aqueous solution comprises peracetic acid, wherein peracetic acid within the aqueous solution reacts with the chromophore; and measuring a concentration of peracetic acid within the aqueous solution, wherein the measuring comprises quantifying a colorimetric change of the aqueous solution caused by the peracetic acid reacting with the chromophore. Other embodiments are described and claimed.

Abstract: A water purification apparatus and method for optimizing efficiency of the water purification apparatus comprising a fluid circuit including a Reverse Osmosis, RO, unit (3), providing a permeate flow, and an electrically controlled deionization unit (4) downstream the RO unit (3) receiving at least part of the permeate flow. The method comprises obtaining (S1) a value indicative of power consumption by the electrically controlled deionization unit and determining (S2) whether the obtained value indicative of the power consumption meets at least one criterion. The method further comprises controlling recirculation of reject water produced by the water purification apparatus, based on a result of the determining (S2), in order to optimize efficiency of the water purification apparatus.

Abstract: A corrosion prediction device that predicts corrosion indicating the degree to which a metal will corrode in an environment, the device including a storage unit which stores a soil sample that simulates the environment and an electrode unit and has a function of repeatedly performing water supply and drainage with respect to the soil sample; the electrode unit including at least one type of metal pieces; a measurement unit that measures, based on change in water content in the environment in one cycle, a corrosion rate of the metal pieces or a value proportional to the corrosion rate of the metal pieces during the change; a calculation unit that integrates the corrosion rate or a value proportional to the corrosion rate over time and calculates an amount of corrosion or a value proportional to the amount of corrosion; and a prediction unit that determines a constant value of K of the power law and a constant value of n of the power law using a difference between the amounts of corrosion or the values proporti

Abstract: A chemical injection system connects a main water flow to a source of chemicals to a bypass chemical dispenser in a water treatment system. The chemical injection system includes a supply pipe, a return pipe having a bypass chemical dispenser located along a length thereof, and a controlled pumping system including a compounding-rate pump controller connected to a pumping loop.

Abstract: Methods and devices for obtaining approximate property data from the aqueous liquid phase of a multiphase fluid produced from a well. The device includes a separation vessel; a demulsifier source; a fresh water source configured to dilute an aqueous liquid phase sample; a water analysis unit configured to receive and analyze the diluted aqueous liquid phase sample, the water analysis unit comprising an analytical cell and at least one probe, the at least one probe having a membrane-coated sensor tip wherein the membrane-coated sensor tip having a membrane coating that comprises a polar material, the at least one probe being configured to measure a property of the diluted aqueous liquid phase sample to obtain diluted aqueous liquid phase sample data; a processing unit configured to calculate approximate aqueous liquid phase data accounting for the measured amount of fresh water used to dilute the measured sample of the aqueous liquid phase.

Abstract: Microalgae cultivation equipment for the cultivation of microalgae is provided in which a raceway is modified so as to contain multiple generally upright photobioreactor columns spaced apart along its length so as to increase the total surface area of liquid growth medium directly exposed to light and to improve the transfer of CO2 from the gas-phase to the liquid-phase by providing adequate height inside the vertical photobioreactor columns. The lowermost ends of the photobioreactor columns are immersed inside the liquid growth medium in the raceway component and are fed with liquid growth medium by a circulation promoting facility circulating the liquid growth medium from the raceway through the photobioreactor columns to become discharged back into the raceway. Gas inlets provide CO2 containing gas bubbles passing upwards in each of the photobioreactor columns. One or more paddle wheels or jet pumps induce a flow of liquid growth medium within the raceway.

Abstract: The present invention concerns a biological reactor used in the field of sanitation for the treatment of sewage and industrial wastewater. The solution proposed in this invention is the coupling of two different treatment processes (anaerobic and aerobic) in the same fixed bed reactor. The invention aims to allow for the construction of plants for the treatment of sewage or very compact industrial effluents, where it is possible to achieve high treatment efficiencies with a small implantation area. In addition, due to the combination of the anaerobic and aerobic processes in fixed beds in the same reactor, the system consumes less energy for aeration and generates a smaller amount of sludge, considerably reducing the operating costs of the treatment plant.

Abstract: Embodiments relate to systems, devices, and methods for sanitizing stored contents. System includes main and secondary assemblies. Main assembly includes main opening and main storage section. Secondary assembly includes securing portion, radiation assembly, and control assembly. Securing portion transitions between secured and unsecured states. Secured state is when main and secondary assemblies are secured together. Radiation assembly is configured to emit radiation, and is formed symmetrically relative to a central axis. Control assembly includes first and second safety assemblies and control processor. First safety assembly is configured to determine whether the storage system is in the secured or unsecured state. Second safety assembly is configured to determine whether the secondary assembly is in a safe or unsafe orientation state.

Abstract: A liquid cleaning and watering system for living plants rests on a surface covered by a non-porous material. A plate layer covering the non-porous layer has two or more layers, each layer having runners arranged in a grid. The grid of each successive layer is offset at an angle with respect to the grid of a previous layer. An upper layer covers the plate layer and has a plurality of holes for the passage of liquids into the liquid cleaning system. As the living plants are watered or cleaned, excess liquids containing water and oils that were excreted by the living plants enter the liquid cleaning system through the holes, the liquid traverses the grid layers, flowing towards a drain. Contaminants within the liquid collect within the grid of the layers of the plate layer for later disposal.

Abstract: The disclosure includes embodiments of systems and methods for removing moisture from an electric power transformer. According to an embodiment, a moisture removal system includes a pump to move oil from the transformer into the system; one or more incoming oil moisture and temperature sensors to detect a first moisture level and temperature of oil; a processor to receive the moisture and temperature and determine an estimated paper moisture value of the insulation of the transformer, and compare the estimate to a target paper moisture value; and an overdry prevention bypass valve positioned in a first position to divert oil without drying when the estimated paper moisture value is equal to or less than the target value, and in a second position to channel oil through one or more drying cylinders when the estimated paper moisture value exceeds the target value.

Abstract: A flood-resistant building is equipped with a flood barrier which enables safe and long-term refuge during floods. In a site surrounding a building, a flood barrier is constructed which encloses nearly the entire periphery of the building. An opening sealing means is connected to an entrance hall and another section serving as an entrance and exit at normal times. The opening sealing means seals the openings of these sections in a watertight manner where the openings are sealed via the opening sealing means. The flood barrier is watertight and at least as tall as the inundation depth estimated to occur in a target area when flooding or storm surges arise. In order to enable long-term refuge, an emergency-use water receiving tank 4 and an emergency-use generator are installed on the roof of the building, and an emergency-use septic tank is installed underground on the site.

Abstract: A thermal management system includes an open circuit refrigeration circuit that has a refrigerant fluid flow path, with the refrigerant fluid flow path including a receiver configured to store a refrigerant fluid, a first control device configured to receive refrigerant from the receiver, a liquid separator, and an evaporator configured to extract heat from a heat load that contacts the evaporator, with the evaporator coupled to the first control device and the liquid separator. The system includes a pump having an inlet and an outlet, with the outlet of the pump coupled to the liquid side outlet of the liquid separator and a second control device that is coupled to an exhaust line, that is coupled to the vapor side outlet of the liquid separator through the second control device. In operation, the evaporator in the open circuit refrigeration circuit would be coupled to a heat load.

Abstract: A water softening device includes a filter configured to remove hardness from a first stream of raw water to produce a second stream of softened water. The filter includes an ion exchange material which is loaded with a first cationic ion species deriving from a tracer salt and with a second cationic ion species deriving from a regenerant salt. The IEX material shows a lower affinity to the first cationic ion species than to the hardness. At the same time the IEX material shows a higher affinity to the first cationic ion species than to the second cationic species. An electrical property of the second stream is monitored by a sensor. A change in the monitored electrical property can be used as an indicator for the exhaustion state of the filter.

Abstract: A method of application to provide a workable solution for tracking the hardness of water utilizing an ion selective electrode by tracking the relative hardness of water at the outflow or egress of an ion exchange column. A monovalent cation exchange membrane (ion selective electrode) distinguishes hard water and softened water in a water flow stream. A voltage is applied across the membrane, facilitating the movement of sodium though the membrane (such that anions and divalent ions are excluded), and the current is measured. The change in current (delta current) is used to determine the hard water concentration or level of hardness in an influent stream. A second application estimates or detects the exhaustion of an ion exchanger, and/or determines the regeneration time/cycle of the ion exchanger through the use of an ion selective membrane. Blending of the influent hard water and effluent soft water allows a user to control hardness levels of the effluent.

Abstract: An advanced nitrogen removal method using partial nitrification-denitrification coupled two-stage autotrophic denitrification. Sewage is introduced into a first pool for partial nitrification-denitrification treatment, and then introduced into a first regulating reservoir. Dissolved oxygen content in the first pool is kept at 0.4-0.6 mg/L. Water is discharged when a molar ratio of nitrite nitrogen to ammonia nitrogen in the first regulating reservoir is 1.0-1.3:1. Effluent in the regulating reservoir is introduced into a second pool for anaerobic ammonia oxidation treatment, and then introduced into a second regulating reservoir. In the second pool, pH is 7.0-7.4, a temperature is 22-28° C. Effluent in the second regulating reservoir and sulfides are introduced into a third pool for denitrification treatment. Water is discharged. In the third pool, pH is 7.5-8.0, a temperature is 28-32° C., a mass ratio of sulfur to nitrogen is 1.9-2.0:1.

Abstract: The present invention relates to a method for liquid media purification, such as potable water, where biological and chemical composition of fluid to be purified is enhanced. The invention also relates to a device for carrying out said method. According to the invention, the liquid is purified by removing coarse particles from said liquid on first filtering means (2), dispersing the liquid with at least one nozzle (3) into a working chamber (4), where it is exposed to a working pressure and gas or gas mixture is introduced in the chamber from at least one inlet aperture (5).

Abstract: An artificial lift system has a surface pump operated by a prime mover powered by a variable speed drive. A jet pump disposed downhole in tubing receives pressurized power fluid from the surface pump, mixes the power and production fluid and delivers the product uphole. A controller disposed at surface adjusts the artificial lift system relative to a set value based on a measured discharged pressure or a measured flowrate and trends a change in the other of the measured flowrate or the measured discharged pressure over time. The controller can also trend an operating condition (intake pressure vs. production rate) to determine changes relative to cavitation conditions. Based on the trended changes, the controller initiates an operation in the artificial lift system, such as adjusting the discharge pressure, initiating an alarm condition, etc.

Abstract: A method for the separation and removal of organic and inorganic contamination in fluids where water is the continuous phase and oil contamination is present in the continuous phase, is described. Xanthan and/or Guar in the unsolved state dispersed in nonpolar solvent of de-aromatized aliphatic or a synthetic isoparaffine, immiscible with water and miscible with oil, is dosed into the fluid.

Abstract: An assembly (1) which is intended for use at an area (31, 32) for allowing a fluid to pass therethrough comprises a filter (10) for blocking items from passing through the area (31, 32) along with the fluid, and at least one anti-biofouling source (20) for emitting ultraviolet light during operation thereof for realizing anti-biofouling of at least a portion of the filter (10). The filter (10) comprises a filter body provided with apertures, wherein the actual filter body is at least partially transparent to the ultraviolet light, so that anti-biofouling of the entire filter (10) may be guaranteed, even in case the anti-biofouling source (20) is positioned at only one side (15, 16) of the filter (10) and/or is integrated in the filter (10).

Abstract: A system and method in a process for making a fermented beverage (FB), such as a bright beer, and producing a clarified FB, using a caustic dosing system to neutralize naturally-present organic acids typically present in a the fermented beverage (such as a bright beer) to the salt forms of the organic acids, and removing or separated the salts to form the clarified fermented beverage or clarified bright beer.

Abstract: A system having improved trapping force for acoustophoresis is described where the trapping force is improved by manipulation of the frequency of the ultrasonic transducer. The transducer includes a ceramic crystal. The crystal may be directly exposed to fluid flow. The crystal may be air backed, resulting in a higher Q factor.

Abstract: A system and method in a process for making a fermented beverage (FB), such as a bright beer, and producing a clarified FB, using a caustic dosing system to neutralize naturally-present organic acids typically present in a the fermented beverage (such as a bright beer) to the salt forms of the organic acids, and removing or separated the salts to form the clarified fermented beverage or clarified bright beer.

Abstract: A system may include a monitoring device that may receive data associated with one or more properties of a well. The well may produce a flow of hydrocarbons. The monitoring device may receive data associated with the well and determine multiphase properties regarding a flow of hydrocarbons based on the data and a hydrocarbon model configured to estimate the multiphase properties of the flow of hydrocarbons.

Abstract: The present invention aims at reducing the time required for a series of analyses in the sequential performance of gradient analyses under a variety of conditions. To this end, in a control apparatus for controlling the operation of a liquid chromatograph having a gradient analysis function in which a mobile phase composed of a plurality of mixed solvents is used and a chromatograph analysis is performed while the mixture ratio of the solvents is temporally changed, the liquid chromatograph is controlled so as to continuously change the mixture ratio of the solvents from an initial mixture ratio to a final mixture ratio when performing a sample analysis; and as to perform, before the sample analysis, a preparatory liquid supply in which the mixture ratio of the solvents is continuously changed from the initial mixture ratio to the final mixture ratio at a rate higher than that in the sample analysis.

Abstract: An electronic system providing unique identification of a genuine filter system assembly to the engine control unit (“ECU”). A resistor is made to be an integrated part of the filtration system hardware such that when connected through a wired convection, the ECU detects a particular voltage signal and identifies the system as a genuine filter. The resistor could be integrated in any part of the filter system such that it could be used to recognize the filter or the cartridge. The resistor connection could be made via male/female pins, conducting wires, plates, conductive plastic material or other mechanisms.

Abstract: A structure and method of facilitating testing of an electronic device (device under test or DUT) using a non-permanent and reusable structure to terminate contact pads and contact pin holes on a surface of the DUT.

Abstract: A skin care composition having from about 0.01% to about 5%, by weight, of an superabsorbent polymer which is a sodium polyacrylate, sodium polacrylate starch, sodium acrylates crosspolymer-2 or mixtures of these and a portion of the polymer comprises a grafted starch material. The superabsorbent polymer is particulate where the particles have an average particle size in the range of from about 5?-30?, and the individual particles in their dry or un-swollen condition are substantially non-spherical, flat, platelet, or elongated in shape. The particles have an absorption capacity of at least about 1000 times their initial dry or un-swollen volume. Additionally, the skin care composition contains from about 0.01-10% of a dry powder that is either starch or silicone based and wherein the dry powder is coated with a silicone based material. Further there is provided a UV active.

Abstract: A skin care composition having from about 0.01% to about 5%, by weight, of an superabsorbent polymer which is a sodium polyacrylate, sodium polacrylate starch, sodium acrylates crosspolymer-2 or mixtures of these and a portion of the polymer comprises a grafted starch material. The superabsorbent polymer is particulate where the particles have an average particle size in the range of from about 5?-30?, and the individual particles in their dry or un-swollen condition are substantially non-spherical, flat, platelet, or elongated in shape. The particles have an absorption capacity of at least about 1000 times their initial dry or un-swollen volume. Additionally, the skin care composition contains from about 0.01-10% of a dry powder that is either starch or silicone based and wherein the dry powder is coated with a silicone based material. Further there is provided a UV active.

Abstract: Disclosed and claimed is a method of removing contaminants from a process stream or stabilizing a system parameter in the process stream. The method includes providing a filtration system in communication with a controller, wherein the controller is operable to automatically initiate a flow from the process stream into the filtration system when the system parameter of the process stream is within above an upper threshold value and/or below a lower threshold value; and activating the filtration system, wherein the flow comprises a flow rate through the filtration system and the controller is operable to adjust the flow rate.

Abstract: Disclosed herein is a water softening apparatus including an electrosorption unit to adsorb foreign matter contained in water with electrical attraction, a preprocessing unit having a preprocessing chamber which is connected with an external water supply source and is provided with a filter to filter out foreign matter contained in water transferred from the external water supply source, and a cleaning solution supply unit having a cleaning solution storage chamber which stores a cleaning solution to be supplied to the electrosorption unit. Since any one of the water transferred from the preprocessing unit and the cleaning solution transferred from the cleaning solution supply unit is selectively transferred to the electrosorption unit by a valve, a pump to inject the cleaning solution and the like are unnecessary.

Abstract: In or in combination with an evaporative air conditioner system having no external water source delivering water to the air handler unit, the invention is a drain pan treatment apparatus utilizing recycled condensate water to create a chemical solution that is delivered into the drain pan to prevent growth of algae and other microorganisms that may clog the drain port or drain conduit. The drain pan treatment apparatus comprises a diverter connector that directs a small amount of condensate water from the drain conduit or drain pump into a chemical canister containing a soluble solid chemical to create a chemical solution. The chemical solution is then delivered into the drain pan. If the air conditioner system does not include a drain pump, then a drain pump is added to deliver the condensate water to the chemical canister.

Abstract: Provided is a method for decomposing at least one of organic compound contained in an aqueous solution by using a titanium dioxide photocatalyst that is excellent in both photocatalytic activity and solid-liquid separation performance for water treatment. The method includes: a step of adding catalyst particles into the aqueous solution; a step of decomposing the organic compound by irradiating the aqueous solution with light having a wavelength of 200 nanometers or more and 400 nanometers or less while stirring the catalyst particles in the aqueous solution; and a step of stopping the stirring, and separating the catalyst particles from the aqueous solution by sedimentation.

Abstract: A centrifuge separator for different specific gravity fluid separation. Gas enriched influent is then fed into a rotary impeller, where rotational energy of the impeller is transferred to the incoming fluid creating a forced vortex. Centripetal force exerted on the fluid particles help to separate the fluid/solids to rotate at different radius. Solids are moved towards a periphery of the tube where a cone collector facilitates to collect the solids. The conical shape allows the solids to slide into an annulus. The lighter specific gravity fluids are forced to segregate into two different rotating vortexes by virtue of the rotary motion of the impeller. The gas bubbles mixed with the influent help to accelerate the separation of two different specific gravity fluids.

Abstract: A device for measuring oxidation-reduction potential at operating temperature and pressure in hot water systems is disclosed and claimed. The device includes a flow-through cell, a sensor, and a reference electrode. The components of the device work in conjunction with the other components and have electrical connections that transmit signals to a controller. The controller calculates and determines adjustments to feedwater chemistry for the hot water system.

Abstract: A method for treatment of dye wastewater by using ultraviolet-acetylacetone oxidation process is provided. This method belongs to the field of dye wastewater treatment, comprising the following steps: A) adding acetylacetone into dye-containing water, stirring and mixing them completely; B) putting the liquid obtained in step A) under ultraviolet irradiation till it is effectively decolorized. Provided is a new method for decolorizing high-concentrated dye wastewater on the basis of ultraviolet-induced oxidation process of phydroxyl radicals. This method can realize complete decolorization of the dye wastewater. During the oxidation process, the dye in the wastewater acts as the photosensitizer and can accelerate the decolorization process as the reaction progresses. The method can also improve BOD5/COD ratio from lower than 0.1 to higher than 0.3, which means that this method can be used not only for high-efficient decolorization of dye wastewater, but also as a preliminary step of microorganism treatment.

Abstract: Wastewater treatment tank for achieving hydraulic flow equalization and high efficiency soluble biological oxygen demand (BOD) removal. The wastewater treatment tank provides a compact arrangement of at least one dissolved air flotation (DAF) cell and an equalization reactor cell. The tank achieves regulatory wastewater pretreatment requirements for reducing total BOD concentrations below 250 to 300 mg/L.

Abstract: The invention relates to a method for treating water laden with nitrogen in the form of ammonium by means of nitritation-denitritation, wherein said method includes at least: a first step (i) of supplying at least one sequential biological reactor (10) with said water; an aerated nitration step (ii); an anoxia denitritation step (iii); and a step (iv) of extracting treated water from said reactor. According to the invention, the method also includes the in-line measurement of the nitrite concentration of said water in said reactor, and at least one monitoring step of at least one step of the method, said monitoring step taking into account the results from said in-line measurement of the nitrite concentration.

Abstract: A dialysis machine has at least one filter for the filtration of dialysis liquid and a device for determining calcification of the dialysis machine. The device has one or more sensors configured and arranged to detect either downstream, or upstream and downstream, of the at least one filter an ion concentration or a parameter representative of the ion concentration or of its change of the dialysis liquid, of a solution serving the decalcification or of another measuring solution. The device doe determining the calcification of the dialysis machine has an evaluation or calcification unit configured to determine the calcification of the dialysis machine based on the ion concentration or parameter value detected by the sensor or sensors. For the Examiner's convenience, a clean text version of the replacement abstract (117 words) is presented below: A dialysis machine has at least one filter for the filtration of dialysis liquid and a device for determining calcification of the dialysis machine.

Abstract: A fluid filter apparatus comprising an upper housing shell; a lower housing shell; a pleat pack element comprising a peripheral frame and a folded pleated media. The frame is at least partially molded over the media to secure the media in the frame, and the media comprises two or more types of media of different densities from each other. A flow control element is disposed for changing the proportion of flow between the first media and the second media responsive to changes in at least one of temperature, pressure, flow rate and/or viscosity of the fluid.

Abstract: A system for treating wastewater is disclosed that includes an array of interconnected reactor tubes. Each reactor tube comprises an outer cathode and an inner anode. The inner anode is positioned within the outer cathode. A voltage differential is applied across the inner anodes and the outer cathodes as wastewater flows between the inner anodes and outer cathodes. As the wastewater flows through the reactor tubes, the water is treated. The voltage differential can cause contaminants in the wastewater to flocculate. The flocculated contaminants can then be removed from the wastewater. The voltage differential can also generate chlorine based elements that treat the water removing ammonia and controlling microorganisms. The inner anode and the outer cathode can comprise mixed metal oxide materials or non-donating conductive materials.

Abstract: Overburden from surface coal mining in many regions can produce a rain runoff laden with selenium, in the selenate form. This occurs from exposed selenium-containing rocks in the overburden, from which selenate is leached out by the nearly-pure rainwater. The selenium-containing runoff water is caught in ponds. Remediation of the pond water to remove selenate down to permissible levels for discharge to lakes and streams is performed by treatment with sulfur-modified iron (SMI) in a contact bed of an upflow reactor vessel. After a prefiltering step, the pond water is pH-adjusted as needed and pumped through the SMI reactor. The treated water can then be run through an oxidation tank and filtered to remove iron. For extending effectiveness and life of the SMI the contact bed is periodically “fluffed” with a high-velocity upflow of water through the bed, expanding and loosening the contact bed to prevent or break up compacting of the SMI medium.

Abstract: A scale suppression apparatus capable of suppressing in a low-priced manner the generation of silica-based scale and calcium-based scale in the influent water containing at least a silica component and a calcium component, a geothermal power generation system using the same, and a scale suppression method are provided. The scale suppression apparatus includes a chelating agent and alkaline agent addition unit injecting liquid containing a chelating agent and an alkaline agent into a pipe arrangement through which influent water such as geothermal water or the like flows, and a controller controlling a pump and a valve of the chelating agent and alkaline agent addition unit. The controller controls the injection of the chelating agent and the alkaline agent and stops of the injection based on the signal output from a scale detection unit for detecting a precipitation state of the scale.

Abstract: An apparatus, method, and system for treatment of industrial waste water and/or marine vessel bilge water before discharge into waterways, said waste water having hydrocarbon, and synthetic oils, chemical or surfactant based hydrocarbon emulsions, and water soluble hydrocarbons, containing hydrocarbon coated organics and fine suspended particulate matter, said treatment utilizing a hydrocarbon sorbing pre-filter media together with filter structural elements to first remove hydrocarbon contaminated organics and particulate, coalesce then bifurcate and adsorb heavier hydrocarbon elements; the remaining liquid entering the second stage of filtration wherein a cryogenically pulverized recycled tire powder material removes the remaining hydrocarbons, synthetic oils, hydrocarbon emulsions, and water soluble hydrocarbons, providing a highly clarified and oil free effluent at high flow rates and with substantially reduced filter system maintenance.

Abstract: The present invention provides a blood purification apparatus and a blood purification circuit, by which a circuit can be shared by different modes for performing respective continuous blood purification methods, a structure of the apparatus performing the continuous blood purification methods can be simplified, and CHF, CHD, CHDF, and ECUM can be performed.

Abstract: A system may include a reactor, in which an anaerobic environment exists, that includes a slurry of at least contaminated water and a mixed bacterial culture of facultative bacteria and anaerobic bacteria. The mixed bacterial culture may be suspended within the slurry. The contaminated water may include contaminants associated with a non-metal, a metal, or a metalloid. The mixed bacterial culture may react with the contaminated water to reduce or remove the contaminants from the contaminated water to create a treated slurry. The reactor may output the treated slurry. The system may also include a filtration device to receive the treated slurry; remove, from the treated slurry, the mixed bacterial culture and the contaminants, reduced or removed from the contaminated water, to create treated water; and output the treated water.

Abstract: A water treatment system including: a flow regulation control system configured to combine oxo-anion-contaminated water with a reduction-promoting agent, a hole scavenger, or both; a reactor fluidically coupled to the flow regulation control system; a first set of system control probes configured to monitor the concentration of oxygen and oxo-anion in the contaminated water; a second set of system control probes configured to monitor concentration of the oxo-anion and reduction products of the oxo-anion in treated effluent from the reactor; and a controller configured to control the flow regulation control system, thereby controlling the flow rate of the contaminated water and the at least one of the reduction-promoting agent and the hole scavenger to the reactor based at least in part on the concentration of oxo-anion and the reduction products of the oxo-anion in the treated effluent.

Abstract: An anion adsorbent of an embodiment includes a support and a triazine hydrochloride structure that is bound to the support.

Abstract: Provided are a purification method and apparatus for radioactive wastewater. The purification method and apparatus for radioactive wastewater according to the present invention, which is a biological purification apparatus for radioactive wastewater containing radioactive iodine, includes: an anoxic tank into which wastewater containing radioactive iodine is introduced; and a microbial purification tank connected to the anoxic tank so as to allow wastewater in an anaerobic state to be introduced and supplied with a metal reducing bacteria source, an electron donor, and a copper ion source, wherein radioactive iodine and copper ions are bound to each other to form copper iodide by metal reducing bacteria, and the formed copper iodide is precipitated in the microbial purification tank, such that the radioactive iodide in the wastewater is removed as sludge.

Abstract: Methods and apparatus are disclosed for capturing and removing oil from a body of water with equipment using rod and film technology, which includes a streamlined oil tank that moves in the water and collects surface oil from an attached skimmer, arrays of inverted funnels lowered into the water to concentrate oil for removal, and containment tents to capture leaking fuel or cargo oil from a sunken ship or any underwater oil leak and channel it into a partially submerged rod and film storage tank at the surface.

Abstract: The present application provides a method of detecting an amount of a treatment agent, such as a flocculating agent, in a process stream comprising the step of measuring at least one absorption property of a sample obtained from the process stream at a wavelength of less than about 250 nm. Processes and systems for monitoring and regulating addition of treatment agents to process streams are also provided.