253results about How to "Increase aeration" patented technology

The invention provides a simple method, devices and several machines for simultaneously stirring and aerating thousands of vessels or wells of microplates in a robust manner and with economy. This method uses the simple principle of magnetic stirrers being levitated vertically when passed laterally or vertically through a strong horizontal dipole magnetic field. The dipole magnetic fields may be produced by using permanent magnets, electromagnets or a modulating / reversing electro-magnetic field. Each vessel contains a magnetic ball, disc, bar, dowel or other shape (stirrers) which in their magnetic attraction to the dipole magnetic field will cause the stirrers to levitate up in the vessel as the stirrer's magnetic poles attempt to align with the center of the dipole's magnetic field. The stirrers will fall to the bottom of the vessel by gravity or by changing the relative position of the levitating magnetic field to pull them down, or by passing the vessel laterally over another magnetic field. The up and down movement of the stirrers provides a vigorous mixing of the contents of many vessels at same time. If the level of the vessel's meniscus is situated so the stirrers pass through it on their way up and down, the air / liquid interface is significantly increased thereby significantly increasing aeration of the liquid.

The present invention relates to a preparation method of biological affinity hydrophilic active magnetic seed filling material for treating water. It is characterized by that said method includes the following steps: mixing biological affinity substance, hydrophilic substance, magnetic powder and active carbon or magnetic powder and calcium carbonate in the high-molecular base material, and adding dispersion lubricating agent, uniformly stirring them, placing them into injection moulding machine, utilizing filling mould to make extrusion moulding and magnetizing, so as to obtain the invented filling material. It has biological affinity and hydrophilicity, at the same time can induce microbial activity and enzyme activity, and can raise oxygen utilization rate in water and water treatment efficiency.

A wastewater treatment system includes a tidal, sequential vertical flow marsh cell system having at least three marsh cells in serial forward fluid communication. Incoming wastewater to be treated is channeled to at least the first and a second marsh cell, and a portion of water exiting a final marsh cell, to the first marsh cell surface. Each marsh cell is alternately flooded and drained for enhancing aeration of incoming water and marsh cell contents, which include media and plant roots having biofilms growing thereon, the biofilms including a population of nitrifying and denitrifying bacteria, for achieving substantially simultaneous nitrification and denitrification of the wastewater.

Submerged gas diffuser assemblies configured to aerate liquid suspensions in reservoirs or deep shafts with enhanced aeration contact patterns and adjustable aeration rates. Aeration contact patterns and rates are varied by the adjusting the spatial configuration of gas permeable membranes, altering the fluid flow patterns around the membranes, manipulating trans-membrane pressures across membranes, varying the sequence of aeration of liquid within the fluid flow patterns, expanding the membrane surface area, and / or by selectively occluding certain portions of membrane surface area of the membrane assemblies. The membrane assemblies are designed to prevent, control, or mitigate membrane fouling and hydro lockup.

An improved venturi apparatus for facilitating the mixture of fluid substances. The apparatus preferably comprises a first funnel section operative to receive a fluid and channel the same through a first cylindrical section or passageway. The first cylindrical section is fluidly connected to an intermediate passageway having a diameter larger than the first cylindrical section. At least one sidearm passageway is fluidly connected to the intermediate passageway into which at least one second fluid is introduced. The at least one sidearm passageway is preferably configured to fluidly interconnect with the intermediate passageway at approximately the medial portion of the intermediate passageway. Fluidly connected to the intermediate passageway is a second cylindrical section that is operative to direct the flow of the intermixed fluids to a second exit funnel section. The improved venturi apparatus is exceptionally efficient at drawing in a second fluid and effective in facilitating the mixture of two or more gasses, liquids or combinations thereof.

The invention relates to a machine for preparing a cooled food product, comprising: a receiving seat (1), for accommodating an essentially cup-shaped container, comprising a heat exchange element (1a) having a heat exchange contact surface (21) arranged to be in contact with an outer surface of a side wall (8d) of the container when the container is placed in the machine, and a stirring unit (5) connectable to a stirring member (9) and arranged for driving the stirring member (9) according to a combination of movements, wherein at least one of the combination of movements has a component directed towards the interior of the container when placed in the receiving seat (1). The method further relates to a system comprising the machine and a container and a method of preparation.

New plant strengthening agents based on phytohormones for application in plant husbandry or arable cropping, preferably in fruit or wine growing. The invention relates to the use of a compound selected from the group gibberellin A4 (GA4), gibberellin A7 (GA7), gibberellin A3 (GA3), 1-naphthaleneacetic acid (NAA), N6-benzyladenine (BA) and S-abscisic acid (ABA), or of a mixture of at least two compounds selected from said group, as a plant strengthening agent, to formulations containing said active substances, as well as to a process for strengthening higher plants which is characterized in that a phytoactive amount of at least one of said compounds is applied to said higher plants, preferably to the epigeal parts thereof. Application in plant husbandry or arable cropping, preferably in fruit or wine growing, is preferred.

The invention discloses an integrated nitrogen and phosphorus recovery device in a struvite method, which relates to the field of environmental engineering water treatment and is a reactor for treating nitrogen and phosphorus-containing wastewater in a physicochemical method. Substances nitrogen and phosphorus in the wastewater are removed in a magnesium ammonium phosphate (struvite) form, and the substances are recovered and reused. The reaction device is in an integrated form, which comprises a precipitation zone, a mixing reaction zone, a crystal growth zone and a crystal trapping and water discharging zone from bottom to top sequentially, the mixing reaction zone is provided with a first-grade aerator, which is mainly a wastewater and reagent fully mixing and reacting zone; the crystal growth zone is provided with a second-grade aerator, which is mainly a struvite growth zone; in the precipitation zone, large-grain struvite crystals are mainly precipitated; and the crystal trapping and water discharging zone recovers the struvite crystals by a filter screen. In addition, the device uses external reflux to reinforce and to control the supersaturated rate of the struvite reaction, thus promoting the crystal growth. The device has simple technological process and has the advantages of short hydraulic retention time, high nitrogen and phosphorus recovery efficiency, high recovery pureness, little occupied area, low operation and maintenance cost and the like.

A machine for preparing a cooled food product includes a receiving seat, for accommodating an essentially cup-shaped container, including a heat exchange element having a heat exchange contact surface arranged to be in contact with an outer surface of a side wall of the container when the container is placed in the machine, and a stirring unit connectable to a stirring member and arranged for driving the stirring member according to a combination of movements, wherein at least one of the combination of movements has a component directed towards the interior of the container when placed in the receiving seat. Also disclosed is a system including the machine, a container, and a method of preparation.

A wine glass having a bowl with a protrusion on the inner surface of the bottom end. The wine glass may aerate and enhance the bouquet of wine contained therein while providing an aesthetically pleasing appearance. The protrusion may also include a hole to allow wine to flow therethrough for further aeration.

A starting and running method of a completely autotrophic ammonium removal over nitrite technology belongs to the water environment recovery and regeneration fields. The starting and efficient and stable running method of the completely autotrophic ammonium removal over nitrite (CANON) technology in a biofilter reactor at normal temperature comprises the following steps: inoculating sludge, carrying out filter material film forming under an anaerobic and anoxic condition, starting CANON under an oxygen limited condition, and controlling the hydraulic retention time and the aeration rate in a combined mode to realize the high-load stable running. The CANON technology is started within 61d, the total nitrogen removal load in the 42d running after starting reaches 3.52kg.m<-3>.d<-1>, and the load is an extremely high level in the research field of the CANON technology, so the method has a simple operation, is easy to implement, and can realize the effective and rapid starting and the high-load running of the CANON technology.

The present invention provides an improved aeration impeller for use in a mixing assembly having an axis of rotation. The aeration impeller includes a hub and a first and second blades that are connected to the hub. Each blade has a first portion positioned at an angle to the axis of rotation and a second portion positioned at an angle to the first portion. The first portion of each blade has an opening that at least partially extends the width of the first portion.

A method of biologically treating wastewater with an integrated fixed film activated sludge process. The integrated fixed film activated sludge process includes biomass suspended in mixed liquor and biomass disposed on carriers. Under certain conditions the dissolved oxygen concentration in a reactor that includes the mixed liquor, biomass suspended in the mixed liquor, and the biomass on the carriers, biological treatment is performed primarily by the biomass in the mixed liquor. This is achieved by controlling or maintaining the dissolved oxygen concentration in the reactor at a relatively low concentration. When the biomass suspended in the mixed liquor is unable to adequately biologically treat the mixed liquor, the dissolved oxygen concentration in the reactor is controlled or maintained at a relatively high concentration. This enables biomass on the carriers to contribute more to the biological treatment of the mixed liquor than when the dissolved oxygen concentration was maintained relatively low.

A biomass generator useful for continuously growing and withdrawing bacteria to be used in a desired beneficial application, the generator having a bacteria growth chamber; water and nutrient inlet ports; upper and lower outlet ports; a recirculating pump withdrawing and reintroducing fluid to establish a vortex in the growth chamber while controlling foaming and pump cavitation; a low pressure air inlet line discharging air inside the growth chamber above the vortex; a fluid discharge line receiving bacteria-containing fluid from the upper outlet port of the growth chamber; a flush line discharging wash water into the fluid discharge line; and an electrical controller cooperating with solenoid-operated valves and a feeder mechanism to periodically introduce water and nutrients into the chamber, thereby simultaneously causing bacteria-containing fluid to be discharged from the growth chamber through the upper outlet port. A method for growing bacteria using the subject apparatus is also disclosed.

The invention provides an apparatus and method for improved mixing of yeast-raised and yeast-raised type dough. The device and method keep the dough cool by an improved structure and method for circulating coolant around a jacketed bowl, and by circulating cooled air through the spinning agitator roller bars. Better aeration of the dough and faster mixing time are achieved along with full water and flour absorption, and reduced operating temperatures by controlling placing of the agitator driveshaft in a carefully defined region. Finally, the invention provides a wiper for wiping the lip of the bowl to keep it clean of dough and to insure a proper seal along the bowl lip when a resilient, expandable bowl seal is used, and it provides a pneumatic seal for securely sealing the mix ingredients in the bowl during mixing.

The invention discloses a preparation method and a preparation device for an enhanced hollow fiber composite film. The preparation device comprises a spinning kettle, wherein moulding liquid in the spinning kettle enters a spinneret through a spinning pump and a filter; long fiber enters into the spinneret through a tension control device after being led out from a wire coil; core liquid in a core liquid tank is sprayed out after entering the spinneret; and the formed enhanced hollow fiber composite film is coiled onto a wire collecting wheel after gelling in a gelling tank. As the fiber compounded enhanced hollow fiber composite film is added with fiber, on one hand, the strength of the hollow fiber composite film is improved, and the aeration rate can be enlarged in an operation process, so as to reduce the pollution of the film; and on the other hand, the film can be backwashed with a cleaning agent.

The invention relates to a deammonia-nitrogen tower for processing industrial ammonia nitrogen waste water. It consists of tower, waste water entrance pipe fixed on the tower, processed water exit pipe, air charging pipe and spreading pipe. In the tower, there is liquid distribution pipe, anti-foaming unit, tower plate and air distribution unit arranged from above to below, the liquid distribution pipe and waste water entrance pipe are connected, the air distrbution unit is connected with air charging pipe, the processed water exit pipe is fixed on bottom sealing block of the tower, the spreading pipe is fixed on top sealing block. By the invention deammonia-nitrogen tower, high-density ammonia nitrogen waste water that density is more than 5000mg / L can be disposable deammonia and denitrogen to reach national discharging standard.

A disposable undergarment is described which has an improved arrangement of leg- and crotch-region elastic members, such as to improve absorption capacity and fit.

A wine aerator for pouring wine from a wine container such as a wine bottle into a receiver such as a wine glass. The wine aerator has a large mouthed vessel into which the wine is poured from any wine container and the wine passes through the vessel to an outlet having a plurality of radial holes to break up the flow of wine into small discrete flows to carry out the aeration process. The wine aerator has a base that is affixed to the vessel and has a plurality of outwardly extending projections that are dimensioned so as to contact the rim of a wine glass to position the wine aerator atop of the wine glass while the wine aerator is being used. The wine aerator is inexpensively constructed and has no moving parts where leakage could occur.

A method and system of tillage and tillage management that includes the steps of establishing a plurality of soil profiles over an area of soil to be cultivated, creating soil map database by combining these soil profiles to establish a treatment and cultivation regime, cultivating the ground in accordance regime and recording the cultivation in the soil map database. A subsoil tool for carrying out the method and system, with a shank (18) connected to a vehicle and to a ripper foot (20) terminating in a ripper tooth (22); a hydraulic ram (26) attached at a lower end to a first pivot connection (28) and at an upper end to an actuator means; the first pivot connection is attached to a rear end of a laterally extending wing member (30), a front end of the wing member being pivotally attached to the shank through a second pivot point (32) and the wing member is selected in accordance with soil profile at any position on a soil map database and is oscillated in response to actuation of the ram.

An immersed membrane system or process may use measured or calculated process information to optimize one or more process operating parameters to improve performance or reduce operating costs. An on-line process control system or method may use the resistance in series method in operating an immersed membrane water treatment system. A process control system or process may consider resistance values and adjust operational parameters such as membrane aeration frequency factor, membrane aeration flow, permeate flux, permeation duration, backwash flow and duration, relaxation duration or maintenance or recovery chemical cleaning frequencies in order to reduce the operational costs related to membrane fouling removal.

The invention relates to a dispersion-type sewage treatment system. The system comprises a conditioning tank, a primary settling tank, an anaerobic tank, an anoxic tank, an aerobic tank, a secondary settling tank, a sludge collection tank, a sludge concentration tank and a sewage collection tank. The system is a mobile small integrated sewage treatment device based on an A2 / O technology and combination with two-point water inlet, sludge double reflux, a bubble-free aeration membrane and an aerobic cell special sub-grid form, can be used for treatment on urban domestic sewage in the urban fringe and the novel district difficult to cover with an urban drainage pipe network and economic development relatively backward vast rural areas and small towns, treatment on a part of industrial wastewater with similar characteristics to those of urban domestic sewage and treatment on urban special wastewater in hospitals and foreign guesthouses.

The invention relates to a method for the biological treatment of effluents contaminated with impurities of urban or industrial origin, characterised in employing a single aeration tank (1) with a high mass charge in which the raw effluent or mechanically pre-treated effluent is mixed without previous decantation with a free microbial culture of the activated sludge type, growing in a lightly aerated medium, of the order of 0.1 to 0.2 kg O2 / kg BOD5 removed, the organic charge applied having a value equal to or greater than at least 2 kg COD / kgSM / day, preferably equal to or greater than 4 kg COD / kgSM / day, the hydraulic residence time for the raw effluent in the single aeration tank being between 30 and 90 minutes, preferably between 40 and 60 minutes.

The invention discloses an ammonia nitrogen removing device assisting an organic compound denitrifier in treating high concentration ammonia nitrogen wastewater in industrial wastewater treatment equipment. The device comprises a reaction tank and a denitrifying tower which are communicated with each other, wherein a first drug tank and a second drug tank which are respectively communicated with the reaction tank are arranged on the upper part of the reaction tank; a mixing and agitating device is arranged in the cavity of the reaction tank; multiple layers of ring-shaped water collecting tower plates are arranged in the cavity of the cylindrical denitrifying tower at intervals; the outer edges of the water collecting tower plates are fixed with the inner wall of the denitrifying tower; the inner rings of the water collecting tower plates form a cylindrical hollow gas channel in the middle cavity of the denitrifying tower; an aeration system and a compressed air supply line which are communicated with each other are fixedly arranged on each water collecting tower plate; an overflow plate and a baffle are arranged on each water collecting tower plate; a circular water-carrying channel communicating the water collecting tower plates from bottom to top is arranged between each overflow plate and each baffle; and each overflow plate is connected with a motor via a vertical shaft lever. The device has simple equipment, is simple and convenient to operate and has higher efficiency (over 99.99%) in denitrifying the high concentration ammonia nitrogen wastewater with the ammonia nitrogen concentration of 1000-50000mg / L.

The invention discloses a device and method for treating sewage with a low ratio of carbon to nitrogen. The device is formed by sequentially connecting a biochemical treatment unit, a magnetic anion exchange resin treatment unit, a contact filtering unit and a disinfecting unit by pipelines in series. According to the method for treating the sewage with the low ratio of the carbon to the nitrogen, the sewage with the low ratio of the carbon to the nitrogen is highly treated through steps of biochemical treatment, ion exchange, contact filtering, disinfection, discharge and the like. The device and the method for treating the sewage with the low ratio of the carbon to the nitrogen, disclosed by the invention, not only is low in technical cost and good in total nitrogen removing effect, but also remarkably strengthen an effect for removing organic matters and suspended matters so as to fully meet the requirement on water quality.

Provided herein is a continuous cell perfusion model system that provides useful pharmacokinetic and pharmacodynamic information on the application of new drugs or combinations of various agents in vitro to human cancer cell lines. Also provided are methods of using this system to individualize cancer treatment.

The invention discloses a horizontal casting mold and a casting method for a high-voltage coil of a dry transformer. The horizontal casting mold comprises a coil casting inner mold, a coil casting outer mold, an end positioning and fixing support plate, an outer mold lining plate and a connection terminal fixing plate, wherein the coil casting inner mold and the coil casting outer mold are transversely arranged. The horizontal casting mold is good in air dispersity, so that casting is faster, air bubbles are not easily generated, the local discharge amount of the dry transformer is reduced and the operation reliability of the dry transformer is improved. A coil does not need to be erected, so that the possibility of collapse of the coil is reduced and a product is more reliable in quality and safer; the height of the cast coil can reach the height required by the drawings, and the end part is smooth and does not need to be cut, so that the horizontal casting mold is free of dust pollution and environment-friendly. Due to the small height, capital input of a casting tank can be reduced and the cost is lowered.