Abstract: Multiple-function biological compositions for the biological control of phytopathogens, phytonematodes and agricultural pests are provided for use as an inoculant, for phosphorus solubilization, for soil conditioning, for use as a biostimulant, for hydric stress reduction in cultivated plants and for bioremediation in agricultural or non-agricultural areas. The compositions contain mixtures of additives and excipients having at least two genera and/or species of Actinomycetes or other bacterial species, so as to provide nematicidal effects, fungicidal effects. insecticidal action in the reduction of damage and control of insects, and other properties such as growth-promotion and soil conditioning. The compositions may also be used, for use as a biostimulant, for hydric stress mitigation in cultivated plants, and for bioremediation in agricultural or non-agricultural areas.

Abstract: Increased control and efficiency over the wastewater purification can be achieved by allowing to selectively prioritize catabolic over anabolic processes via prioritization of the digestive function of microorganism in the activated sludge. The gas-dispersion return sludge is created using pure oxygen or oxygen containing trace amounts of ozone, which is blended with return sludge to create a mixture of gas and liquid, which is passed through an atomizer or a pump to instantly render the reactive gas to an ultra-fine bubble state. At least a portion of the ultra-fine bubbles dissolve within the sludge, raising oxygen to a critical level within a short time, activating the dormant microorganisms. The microorganism accumulate enough cATP upon initial encounter with the pollutants to prioritize their digestive function, and when exposed to pollutants present in wastewater, digest the pollutants using biochemical pathways different from the ones used in nature.

Abstract: The present invention is generally directed to the use of an ozone oxidation process to remove azoles and azole-type compounds from wastewater. Specifically, the present invention is directed to a chemical treatment system for wastewater, including: an oxidation module receiving wastewater input and outputting an effluent; wherein the oxidation module removes azole-type compounds from the wastewater; and wherein the effluent has a reduction in azole-type compounds greater than ninety percent (90%).

Abstract: TA method for treating an aqueous solution containing ammonium perchlorate and optionally nitrate ions, the method having a nitrification/denitrification sequence then a step of reducing perchlorates, the liquid effluent obtained at the end of this step of reducing perchlorates being subjected to a first membrane filtration, the liquid effluent obtained following this first membrane filtration being put into contact, in a reactor in aerobic conditions, with microorganisms able to carry out the oxidation of organic materials, then the liquid effluent leaving this reactor being subjected to a second membrane filtration, the first membrane filtration and the second membrane filtration being carried out on the same membrane filtration unit.

Abstract: A system and method for removing organic carboxylates from a mono ethylene glycol (“MEG”) stream includes a reaction vessel; means for cooling and diluting the MEG stream being routed to the reaction vessel; means for acidifying the cooled and diluted MEG stream during its residence time within the reaction vessel; and means for removing an acetic-rich overhead stream from the reaction vessel. The acidification of the cooled and diluted MEG stream occurs under a vacuum. The reaction vessel may be located downstream of a calcium removal vessel and receive a filtered bottom stream from that vessel, or it may be a single reaction vessel that cycles between a calcium removal mode and an acetate removal mode, with the pressure of the single vessel being greater during the calcium removal mode than during the acetate removal mode.

Abstract: A device includes a tube body 110 being filled with water; an induction coil 120 installed at a center inside the tube body 110; and a plurality of heating plates 130, 140 arranged around the induction coil 120. The device further includes a high frequency generator 180 for applying high-frequency power to the induction coil 120 to heat the plurality of heating plates 130, 140, resulting in that the water in the tube body 110 is heated and converted into micro-cluster magnetized water; and a tube 150, positioned between a pair of magnets 160, 170 for causing the micro-cluster magnetized water to pass through an N-pole and an S-pole resulting from the pair of magnets 160, 170, thereby providing it as magnetized water exhibiting a high degree of electric conductivity.

Abstract: The present embodiments generally relate to the use of one or more polymers, e.g., one or more dry acid polymers and/or one or more dry acid polymers with salt, as flocculants, generally for treating tailings, e.g., oil sands tailings, in need of solid-liquid separation, e.g., in order to efficiently recycle water and/or to reduce the volume of tailings which may be transferred to a tailings pond and/or a dedicated disposal area.

Abstract: A water treatment control system includes an aerobic tank in which aerobic treatment is carried out, an aerobic tank aeration device that aerates to-be-treated water in the aerobic tank, a membrane filtration tank including a separation membrane that filters the to-be-treated water treated in the aerobic tank, a membrane filtration tank measurement instrument that measures the ammonia concentration of the to-be-treated water in the membrane filtration tank, as a membrane filtration tank ammonia concentration measurement value, and an aerobic tank aeration air volume calculation device that sets the aerobic tank aeration air volume of the aerobic tank aeration device on the basis of the membrane filtration tank ammonia concentration measurement value.

Abstract: A wastewater treatment system including an aeration unit, a contact tank, a dissolved air flotation unit, and a biological treatment unit is disclosed. A method of retrofitting a wastewater treatment system by providing an aeration unit and fluidly connecting the aeration unit to the wastewater treatment system is also disclosed. A method of treating wastewater including aerating wastewater with oxygen, combining the aerated wastewater with activated sludge, floating biosolids from the activated wastewater, and biologically treating the effluent is also disclosed. The method optionally includes combining the floated biosolids with the aerated wastewater and/or activated wastewater. A method of facilitating treatment of high solids content wastewater is also disclosed.

Abstract: A separation apparatus includes: a partitioning member inside a separation tank, includes erect and transverse portions, and partitions the tank into inflow and outflow regions of a liquid; an inlet of which a lower level is set to be lower than an upper end of the erect portion and an upper level is set to be higher; a screen in the erect portion along a flow direction of the liquid; a swirling inducing member in the erect portion intersecting with the flow direction of the liquid; a screen in the transverse portion; a dividing member dividing the liquid flowing in from the inlet into flows along side walls of the separation tank; a retaining member at a downstream side in the flow direction and retains the substance having the specific gravity less than that of the liquid; and an outlet through which the liquid flows out from the outflow region.

Abstract: A skid mounted device for upper-spreading internal diffusion vertical plug flow photocatalytic wastewater treatment includes internal diffusion vertical plug flow photocatalytic reaction tank groups and a skid base. The internal diffusion vertical plug flow photocatalytic reaction tank groups are arranged on the skid base. The internal diffusion vertical plug flow photocatalytic reaction tank groups are connected to each other in series, in parallel, or in series-parallel. Each internal diffusion vertical plug flow photocatalytic reaction tank group consists of two or more photocatalytic reaction tanks connected in series, in parallel, or in series-parallel. The wastewater pipes connected to the photocatalytic reaction tanks in each internal diffusion vertical plug flow photocatalytic reaction tank group are mounted above the photocatalytic reaction tanks.

Abstract: A roller mop capable of self-cleaning, comprising a pull rod (41), a mop head component (1), and a cleaning basin capable of holding the mop head component (1). The pull rod (41) is grasped by a person to operate; a motor (15) in the mop head component (1) drives a roller (10) to clean the ground; after the mopping is ended, the mop head component (1) can be put in the cleaning basin for charging and washing with water. The roller mop provided with a trash bin (17) can receive a number of small trashes; labor intensity is reduced due to the driving of the motor (15); the mop can perform continuous operation, and thus high cleaning efficiency is achieved; moreover, the mop has a self-cleaning effect, and is easy to use.

Abstract: Apparatus for use in, or forming part of, a separation process to be implemented in separation processor technology, the apparatus comprising synthetic bubbles or beads configured with a polymer or polymer-based material functionalized to attach to a valuable material in a mixture so as to form an enriched synthetic bubbles or beads having the valuable material attached thereto, and also configured to be separated from the mixture based at least partly on a difference in a physical property between the enriched synthetic bubbles or beads having the valuable material attached thereto and the mixture.

Abstract: Provided is a process comprising receiving overflow of wastewater influent from a clarifier basin in a clarifier effluent collection trough; receiving inflow of wastewater influent from the clarifier effluent collection trough in a filter influent flow inlet distribution channel; maintaining substantially constant liquid level in the filter influent inlet distribution channel; applying hydrostatic pressure to push wastewater influent from the filter influent flow inlet distribution channel into an upflow backwash filter contusing denitrifying biomass or deammonification biomass; backwashing the backwash filter with a gas lift backwash flow; returning filter reject backwash wastewater from rejection compartment of the filter through denitrifying bacteria or deammonification biomass recycle return line to a location upstream of the filter; and recycling denitrifying bacteria or deammonification biomass from denitrifying bacteria or deammonification biomass recycle return line to at least one of the clarifier ef

Abstract: The invention relates to a sewage pit (1, 60) for receiving and discharging waste material, particularly domestic, medical and/or industrial waste comprising liquid and solid constituents, to the sewer (52), the sewage pit comprising: —a housing (2, 3, 4) with a closable receiving space (9), wherein one or more of the walls of the housing is provided with at least one inlet (19) configured to carry the waste material into the receiving space, a flushing liquid feed (10) which is embodied to feed flushing liquid to the receiving space for bringing the waste material into suspension, and at least one outlet (29) which can be connected to the sewer and is configured to discharge the mixture of waste material and flushing liquid from the receiving space and to the sewer, —at least one pump (25, 26) connectable or connected to the one or more outlets which is configured to pump the mixture which has been brought into suspension from the receiving space and to discharge the mixture via the one or more outlets.

Abstract: An extraction, reaction, and purification apparatus that comprises an entire unit designed to react, extract, purify, and isolate compounds and individual analyte from one or more source material(s), which are contacted with a process fluid to form an absolute, the unwanted components are then further removed in a sequence of steps, using separation chambers, until a sufficient purified extract is obtained. The apparatus further comprises a high-speed solvent separation unit to evaporate the solvent from the extract. There are two methods for using different solvent/sequences to obtain between 90-99% pure extracted and purified material. The process also includes bioconversion of “waste” products, making it a “waste free,” environmentally friendly system.

Abstract: There are provided systems and processes which enable the efficient biological treatment of high salt concentration fluid streams, e.g., spent caustics, to reduce COD concentrations in the fluid streams.

Abstract: A scrubber wastewater treatment method, according to one possible embodiment, includes obtaining a measurement of a turbidity or of a suspended substance concentration of scrubber wastewater and, upon determining that measurement of turbidity or suspended substance concentration is within a certain range, performing treatment. A scrubber wastewater treatment device, according to one possible embodiment, includes a magnetic powder adding device controllable to add a magnetic powder to be added to scrubber wastewater having been generated by treating combustion exhaust gas in a scrubber, and a controller configured to control an amount of the magnetic powder added by the magnetic powder adding device in accordance with a measurement value obtained by a sensor.

Abstract: A blood purification device for purifying blood drawn from a body and then returning the blood into the body, including: a pump provided midway along a fluid path through which blood or a dialysis fluid flows; a valve that is provided midway along the fluid path and closes or opens a part of the fluid path; and a control unit that causes a blood purification process of passing the blood or the dialysis fluid through the fluid path for blood purification, a priming process of driving the pump and the valve to supply a priming fluid to the fluid path before the blood purification processing, and a pressure reduction process of reducing pressure in a gap in the fluid path to a negative pressure state before supply of the priming fluid.

Abstract: There are provided herein methods and systems for increasing efficiency in a multi-stage activated carbon system. The methods and systems provide a cleaned carbon solids fraction and a waste liquor from wet air regeneration, and direct the same to a second stage and a first stage, respectively, of the multi-stage activated carbon system to enhance removal efficiency therein.

Abstract: According to various aspects and embodiments, a system and method for treated contaminated groundwater is provided. The groundwater is contaminated with an initial concentration of recalcitrant organic contaminant. According to some embodiments, the contaminated groundwater is treated by introducing a persulfate to produce a first treated aqueous solution and then exposing the first treated aqueous solution to ultraviolet light to produce a second treated aqueous solution. The second treated aqueous solution may have a concentration of the recalcitrant organic contaminant that is at least 50% less than the initial concentration of recalcitrant organic contaminant.

Abstract: A process involves heating waste grease in a first separation chamber to separate it into a primary oil, aqueous, and solid phase and decanted the primary oil phase by flowing it upwardly and over a liquid impermeable barrier and into a second separation chamber. Components of the primary oil phase are separated into a secondary oil, aqueous, and solid phase. The secondary oil phase is decanted by flowing it upwardly and over a different liquid impermeable barrier and into a heating chamber. In the heating chamber, the secondary oil phase is heated to a temperature sufficient to separate components of the secondary oil phase into a tertiary oil phase, aqueous phase, and solid phase. The tertiary oil phase comprising brown grease is extracted. The remaining tertiary aqueous and solid phases in the heating chamber may be heated again to produce a tertiary oil phase comprising additional brown grease.

Abstract: The present invention relates to a sewage treatment system using granules, and more particularly, the sewage treatment system includes: an anoxic tank which has a sewage inlet port into which sewage is introduced; an anaerobic tank which is connected to the anoxic tank; intermittent aeration tanks which are connected to the anaerobic tank, have two or more separately divided spaces, and have, in the spaces, granules and aeration devices that alternately operate; and a settling tank which is connected to the intermittent aeration tanks, and the sewage treatment system is operated by a method including: a first step of introducing sewage; a second step of allowing the introduced sewage to pass through the anoxic tank and to be supplied with carbon; a third step of allowing the sewage passing through the anoxic tank to be introduced into the anaerobic tank; a fourth step of allowing the sewage passing through the anaerobic tank to be introduced into a first intermittent aeration tank and a second intermittent ae

Abstract: Delivery of more than one therapeutic fluid as a means to control symptoms of a health conditions is disclosed. More than one therapeutic fluid may be dispensed from more than one reservoir and delivered to a user's body via one or more cannula that penetrate the skin. The therapeutic fluids may be delivered by action of one or more pumping mechanisms that may be controlled by a processor in a portable, ambulatory device. The therapeutic fluids may optionally be insulin and one or more of an amylin analog, pramlintide acetate and an exenatide, and the health condition may optionally be diabetes. This device can be used in combination with a glucometer.

Abstract: The invention comprises an activated sludge treatment system and process that aerates wastewater undergoing treatment using venturis.

Abstract: A wind-turbine gearbox system includes an input gear stage having mating gear surfaces finished to a surface roughness of less than 0.25 micron and at least one bearing supporting the input gear stage. A lubrication circuit is arranged to deliver lubricant to the input gear stage and the bearing during operation of the wind-turbine and includes an inline filter for removal of particles of less than 2 micron from the lubricant prior to delivery. A lubricant for use in the system may have a relatively low viscosity compared to conventional wind turbine gearbox lubricants.

Abstract: A biosludge treatment system includes: a fracture unit including a fracture tank formed with a fracture chamber, a first circulation pipeline in fluidic communication with the fracture chamber, and an inner circulation sub-unit disposed in the fracture chamber and in fluidic communication with the first circulation pipeline; a pre-mixing unit mounted downstream of the fracture unit and including a pre-mixing tank formed with a pre-mixing chamber, a fracture chamber-connecting conduit in fluidic communication with the fracture chamber and the pre-mixing chamber; and a lysis unit mounted downstream of the pre-mixing unit and including a lysis tank formed with a lysis chamber, a second circulation pipeline in fluidic communication with the pre-mixing chamber-connecting conduit and the lysis chamber.

Abstract: A mobile water re-use system can include a chemical treatment apparatus, at least one weir tank in fluid communication with the chemical treatment apparatus, and two or more settling tanks in fluid communication with each other and at least one of the settling tanks in fluid communication with the weir tank. The weir tank can have a first end, a second end, an internal chamber, and a plurality of baffles that induce turbulent flow of fluid through the internal chamber. The settling tanks can provide, promote, facilitate, result in, and/or induce laminar flow of fluid through at least a portion of the internal chamber. Weir tanks, settling tanks, and method of treating flowback and produced water are also described.

Abstract: A wastewater treatment system and method are provided for preventing or reducing ammonia rebound during periods of warming weather. The system may be operated in first and second modes of operation. During the first mode of operation, wastewater may pass directly from a reactor to a partial mix cell and then to a polishing cell. During the second mode of operation, which typically occurs during a springtime warmup period, wastewater is retained within the partial mix cell until sludge and biosolids therein are substantially digested, while wastewater exiting the reactor is temporarily directed to the polishing cell, thereby bypassing the partial mix cell. Upon digestion and stabilization of the sludge and biosolids in the partial mix cell, the system may return to the first mode of operation. Sludge and biosolids may optionally be removed from the reactor during the first and second modes of operation.

Abstract: A parallel flow channel type filter cartridge includes a filter portion which includes a plurality of filter bodies and a plurality of filter housings corresponding to the plurality of filter bodies and independently accommodating the respective filter bodies and a cartridge header in which a top is formed in a structure in which a tap water pipe surrounds a perimeter of a purified water pipe, a plurality of filter accommodating pipes coupled with top ends of the plurality of filter housings which form the filter portion to seal an inside of the filter portion are formed at a bottom, and a parallel structure type flow channel which allows tap water to flow into the plurality of filter accommodating pipes at the same time and then allows the water purified while passing through the plurality of filter bodies to be discharged through the purified water pipe is formed therein.

Abstract: A device for sea water desalination and power generation, including: a tidal current turbine, a coupling, a revolving shaft, a booster pump, and a body. The body includes a chamber, a divider, and an end cover. The divider and the end cover are in fixed connection to the body, and the divider divides the chamber into a closed pumping chamber and a closed desalination and power generation chamber. The booster pump is disposed in the pumping chamber and is driven by the revolving shaft. The tidal current turbine is connected to the revolving shaft via the coupling. The desalination and power generation chamber includes a seawater pretreatment device, a seawater desalinating unit including an unsteady reverse osmosis membrane, a flow battery, and a controller. The booster pump is connected to the seawater pretreatment device via an inlet tube, and is connected to the seawater desalinating unit via an outlet tube.

Abstract: Systems and methods to improve the removal and capture of oil from wastewater streams. The water and oil mixture (wastewater) is diluted and treated to provide better solubilization of hydrophilic and hydrophobic fractions using captive water and a diluent. Two additives are added to demulsify and disperse polymeric and non-hydrocarbon insolubles and layer separation is performed on the treated wastewater to segregate oil and water.

Abstract: The improved process for conditioning sludges by flocculation, according to which: the sludge to be treated is transported in a pipeline, at least one flocculating agent is inserted in the pipeline that transports the sludge to be treated, the sludge is then mixed with the said flocculating agent. finally, the mixture is transported and then discharged in a natural or an artificial excavation at a distance from the bottom of the said excavation that is less than its depth.

Abstract: An inlet arrangement for a tray-based grit removal system utilizes a set of separate inlet hoses to connect the vertical stack of trays to a horizontally-disposed inlet chute, thus eliminating the inlet duct utilized in prior art configurations. Each hose is configured to have about the same length and diameter, providing an essentially uniform influent pressure at the input to each tray. The hoses are directly connected between the trays and the inlet chute, where each tray may be formed to include a hose coupler of the same diameter as the hose. The inlet chute may take the form of a trough or tube (or other suitable geometry), with the plurality of hoses all terminating along a common, horizontal output face of the chute.

Abstract: Methods and systems are provided for operating a vehicle including an engine and a fuel system. In one embodiment, a water drainage system for a fuel system comprises a fuel tank, a fuel-water separator in fluid communication with the fuel tank, and a purge tank in fluid communication with the fuel-water separator and the fuel tank, the purge tank separate from the fuel tank. The water drainage system further includes a fuel property sensor for detecting a presence of water and a purge line in fluid communication with the purge tank for removing fluid from the purge tank, a flow of the fluid from the purge tank controlled by a check valve.

Abstract: A reverse osmosis system according to the present disclosure includes a first membrane array, a second membrane array, a hydraulic pressure booster, and a motor-generator. The first membrane array is configured to generate a first permeate stream and a first brine stream from a feed stream. The second membrane array is configured to generate a second permeate stream and a second brine stream from the first brine stream. The booster is configured to use energy from the second brine stream to increase pressure of at least one of the feed stream and the first brine stream. The motor-generator is coupled to the hydraulic pressure booster and is operable to use energy from a power supply to drive the hydraulic pressure booster. The motor-generator is also operable to use energy from the second brine stream to provide power to the power supply.

Abstract: A gun barrel tank for treating raw crude oil mixtures. The fluid mixture enters through a degassing boot where gas is separated from the liquid. The liquid travels through a central column to a horizontal hydraulic distributor located in the lower area of the tank, first entering a central distributor trough, then passing into open bottom horizontal inverted lateral troughs and finally out through a plurality of metering orifices provided near the top edges of the lateral troughs to provide uniform distribution of the liquid in the tank. A circular oil collection trough provided at the top of the tank has a plurality of V-shaped notches on its top edge over which oil flows into an oil collection trough to provided uniform collection of the separated crude. A circular water collector in the bottom of the tank removes separated water, and solids are removed from the bottom of the tank.

Abstract: A separator (10) comprises a housing (12) and a separator chamber (24) contained within the housing, an inlet (26) and outlet (28) to the separator chamber and a dividing member (34) for substantially dividing the separator chamber into a first chamber (30) and a second chamber (32). A flow path (38) is provided between the first and second chambers for allowing flow to circulate between the first and second chambers, and guide means (56) for creating opposing flow paths in the second chamber (32) for slowing flow through the second chamber (32).

Abstract: A hemodialysis system includes: a peristaltic blood pump; a first peristaltic dialysate pump; a second peristaltic dialysate pump; and a fluid cassette including an upper portion and a lower portion, a blood pumping tube extending linearly from the upper portion to the lower portion, the blood pumping tube actuated by the peristaltic blood pump, a first dialysate pumping tube extending linearly from the upper portion to the lower portion, the first dialysate pumping tube actuated by the first dialysate pump, and a second dialysate pumping tube extending linearly from the upper portion to the lower portion, the second dialysate pumping tube actuated by the second dialysate pump.

Abstract: A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of or coated with a synthetic material such as a polymer that is naturally hydrophobic or a polymer that is hydrophobically modified. The synthetic bead can be made of glass having a coating or polysiloxane. The synthetic beads can be placed in flotation cell containing a mixture of water, collector molecules, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The collector chemical can be xanthates. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.

Abstract: Delivery of more than one therapeutic fluid as a means to control symptoms of a health conditions is disclosed. More than one therapeutic fluid may be dispensed from more than one reservoir and delivered to a user's body via one or more cannula that penetrate the skin. The therapeutic fluids may be delivered by action of one or more pumping mechanisms that may be controlled by a processor in a portable, ambulatory device. The therapeutic fluids may optionally be insulin and one or more of an amylin analog, pramlintide acetate and an exenatide, and the health condition may optionally be diabetes.

Abstract: A method and apparatus for restoring the extractive potential of organic hydroxyoxime-based extraction solution used in the recovery of metals by liquid-liquid extraction are provided. The method is two-stage, in which an aqueous solution of hydroxylamine or some hydroxylamine compound is used in the reaction stage, and the removal of the undesirable compounds generated in the reaction occurs in the second stage by adsorption purification. The reaction stage and the adsorptive stage are carried out in a mixing tank.

Abstract: In a wastewater treatment system, feed water is processed by anaerobic digestion, preferably in an anaerobic moving bed bioreactor (AnMBBR). Effluent from the AnMBBR passes through one or more solid-liquid separation units. A solids portions is treated by hydrolysis or suspended growth anaerobic digestion. A liquid portion of the hydrolysis or suspended growth anaerobic digestion effluent is returned to the AnMBBR or blended with effluent from the AnMBBR. The AnMBBR effluent may be treated with an aerobic moving bed bioreactor (MBBR) before the one or more solid-liquid separation steps. Membrane filtration may provide a first solid-liquid separation step. A thickened waste stream may be withdrawn from a recirculation loop flowing from the first solid-liquid separation unit to the MBBR. Optionally, a solids portion separated from the feed water upstream of the AnMBBR may also be treated by hydrolysis or suspended growth anaerobic digestion.

Abstract: Disclosed are a sewage and wastewater treatment system and method using a constant level continuous flow sequencing batch reactor (CSBR). Also, disclosed is a method capable of converting the system into a membrane bio-reactor (MBR) process by means of submerged membranes with a simple configuration. Further, disclosed is an automated foam and scum management and removal system.

Abstract: The present disclosure relates, according to some embodiments, to systems and methods of fluid treatment systems. Fluid treatment systems and methods thereof may be operable to remove contaminants and optionally reduce hardness. A fluid treatment system may comprise a feed stream configured to provide a contaminated fluid, a concentrate tank configured to receive the contaminated fluid from the feed stream, a filtration unit configured to receive the contaminated fluid from the concentrate tank, and a permeate stream operable to receive a treated fluid from the filtration unit. A concentrate tank may be operable to reduce hardness of the contaminated fluid. A filtration unit may be operable to filter contaminants from the contaminated fluid.

Abstract: A method and system for precipitation and separation of carboxylic acid salts from a hydrate inhibitor solution is disclosed. The method comprises lowering the solubility of the carboxylic acid salts to force precipitation of carboxylic acid salts and separation of the precipitated carboxylic acid salts from the hydrate inhibitor solution.

Abstract: The present invention comprises a closed loop system for the removal of contaminants from wastewater while evaporating the water by utilizing a continuously running evaporator in communication with a separation tank wherein water is returned to the evaporator and solids are left in the separation tank for disposal.

Abstract: An upflow continuous backwash deep bed sand filter (UCBF) having a recycle line for returning carbonaceous denitrifying bacteria attached to biomass to the influent of the UCBF. The recycle line returns the biomass to the treatment process at a location upstream of the upflow continuous backwash filter. Further, a liquid level control unit is provided that reduces fluctuations and significant drop in the liquid level upstream of the upflow continuous backwash filter, thereby avoiding or minimizing flow turbulences, air induction, and undesirable wastewater aeration resulting in the need to dose excessive carbon source to remove dissolved oxygen in the aerated wastewater.

Abstract: A method system for processing interface emulsion, water, and solids contained within a separator vessel that comprises the steps of continually extracting those components from the vessel and then passing them through a gas flotation cell. The cell, which is preferably a vertical induced gas flotation cell, separates the oil and water contained in the interface emulsion and discharges recovered oil from an upper portion of the cell and treated water from a bottom portion of the cell. The recovered oil and treated water may be further processed and recycled to the vessel or sent elsewhere. The treated water may also be recycled to the cell or sent to a process sewer. Fuel gas residing in an upper portion of the cell may be cooled and passed through a splitter. All the steps of the system comprise a closed system with no air emissions.

Abstract: A circulation apparatus for agricultural and fishery production and irrigation is provided with a water supply device; a production device; a filter device; an irrigation device; a water storage device; and pipes for connecting the water supply device, the production device, the filter device, the irrigation device, and the water storage device together. The water filter device is filtered and sterilized, and outputs to the irrigation device to supply an irrigation water source for agricultural uses. Excess of the irrigation water source outputs to the water storage device for storage, and flows into the water supply device again or the irrigation device so as to make the irrigation water source to be continuously re-circulated and reused among the water supply device, the production device, the filter device, the irrigation device, and the water storage device.