1480 results about "Aeration system" patented technology

The present invention is an industrial waste water microwave electrodeless ultraviolet photocatalysis-dual membrane separation coupling treatment device, the device mainly consists of a reactor (1), a membrane separation system (2), a microwave electrodeless ultraviolet light source system (4), an aeration system, and an ozone tail gas decomposition device (7) connected to the reactor, and an inlet and outlet water system, wherein: the upper and lower parts of the reactor are respectively the reaction zone and the aeration zone, which are separated by a water distribution plate (5); the membrane separation system The microwave electrodeless ultraviolet light source system is located in the reaction zone and is separated by a corrugated partition (3); the aeration system is composed of a microporous aeration head (6) and a blower (8), and the microporous aeration head is located in the aeration At the bottom of the zone, the blower sends air to the aeration zone through the air duct. The invention has the characteristics of high reaction rate, complete degradation of organic matter, long-term operation and the like, and has strong operability and high safety. It is suitable for the treatment of refractory organic industrial wastewater, and it is also suitable for sterilization and disinfection in the field of water supply.

An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.

The invention is directed to a method an apparatus for treating wastewater. The wastewater treatment system includes an aeration system that cycles between biological multiple biological basins. The system also includes one or more membrane basins. A method of the invention includes controlling the introduction of air into each biological basin in response to one or more operating conditions.

An aerated biological filtration system (10) for treating waste water includes a treatment vessel (11) of elongated configuration which incorporates a circulating filter bed (23) and a static filter bed (24). The circulating filter bed incorporate a particulate material such as granulated activated carbon having a specific gravity in the range of 1.2 to 1.4 and effective size of 0.6 mm to 1.5 mm. The circulating filter bed is disposed above the static filter bed and an aeration system (27) is disposed between the filter beds. The aeration system is arranged to diffuse air through the circulating bed either continuously or intermittently so as to provide oxygen to micro-organisms attaching to the particulate material and to cause slow circulation of that particulate material. The system has particular application for domestic recycling of grey water.

The invention relates to a method for treating eutrophication pollution of landscape water, and combines a physical-chemical technique and an ecological floating island technique, utilizing a constructed enclosure to divide an ecological purification area and a strengthening purification area in the landscape water and plant an ecological floating island in the ecological purification area. Besides the ecological floating island planted in the strengthening purification area, a medicine feeding system and an aeration system are also arranged in the strengthening purification area; by utilizing a diving pump, the landscape water is led to the purification areas; the medicine feeding system and the aeration system are opened; through the effects of physical-chemical adsorption and coagulation settlement, pollutants are rapidly removed; at the same time, the ecological floating island closely distributed on the water surface has good effects of wind and storm resistance and light screening, thus providing a good hydraulic condition for the settlement of the pollutants; due to a loss of light source, the algae settling under water can not float any more, thus dying gradually; in addition, a certain quantity of nutrition salt released in a decomposition of the pollutants and dying of the algae can be fully absorbed by the ecological floating island; the high quality water treated in the ecological purification areas flows back to the landscape water.

A very compact, stopper style pourer that can be inserted in a wide range of container neck sizes. The above mentioned end stopper is multifunctional, combining pouring, aeration, provision for preservation and capping in an integrated innovative design. The pourer is equipped with an internal aeration system, based on the Venturi principle, a non-protruding, non-drip spout, built inside the stopper, an access opening for a preserving gas supply, a telescopic extension in the container that regulates the aeration and improves the preserving gas usage. The stopper is also fitted with a hinged lid that has a co molded seal and lock, to provide a positive capping. The front face of the lid is suitable in size to carry any logo/ marking, similar to any wine container cork-sleeve.

This invention relates to water disposal facility and means of integrated ozone and aerating biological filter. This aerating biological filter(9) is above ozone catalysis chamber(8), connects with ozone catalysis chamber(8) through the filter plate of biological filter(9); ozone catalysis chamber joints with Venturi tube(5), Venturi tube(5) respectively joints with ozone occurring system(6) and influent water pump(1); ozone occurring system(6) is a ozonizer that by silent discharge method translate oxygen of air into ozone. The water after pretreatment by ozone passes the filter plate of the aeration biological filter pool at the top of the ozone reaction chamber to enter the biological filter pool uniformly and stay for about 1 to 4 hours. This invention can advance aerating efficiency without fixing aerating system, and the flow between aerating biological filter and ozonization buffer pool cell is equilibrium, possess merits of high efficiency, low cost and so on.

A device for realizing and maintaining shortcut nitrification in a continuous flow process is successively provided with a water inlet tank, an aeration system and a precipitation system, wherein the water inlet tank is communicated with a completely hybrid reaction tank through an intake pump and the completely hybrid reaction tank is communicated with a precipitation tank through a pipeline. The reaction tank is provided with a DO probe and a pH probe. Data is transmitted to a PLC control system through a DO\pH online detecting instrument and the PLC control system is connected with an air compressor. In an intermittent starting stage, the PLC control system can timely close a switch of the air compressor according to variation characteristics of DO and pH values. In a stable maintenance stage, the PLC control system can adjust an opening or a rotational speed of the air compressor in real time and control a DO concentration in the reaction tank within an optimized scope. This invention realizes rapid starting and stable maintenance of the shortcut nitrification and resolves a problem that starting of the shortcut nitrification in the continuous flow process is difficult in treating municipal sewage and the shortcut nitrification is difficult to be re-implemented. The invention is mainly used to realize the shortcut nitrification of the municipal sewage or wastewater containing high ammonia nitrogen in the continuous flow process, and saves the aeration energy consumption.

The invention discloses a control method for a partial nitrification-anaerobic ammonia oxidation integrated SBR (Sequencing Batch Reactor) denitrification process. The method consists of a dissolved oxygen-ammonia nitrogen control method and a pH-ammonia nitrogen control method respectively, wherein the dissolved oxygen-ammonia nitrogen control method comprises the steps that a dissolved oxygen on-line electrode and an ammonia nitrogen on-line electrode are utilized, the aeration rate is controlled through the dissolved oxygen on-line electrode, furthermore the concentration level of NO2-N in an SBR is controlled so as to synchronously carry out the partial nitrification and the anaerobic ammonia oxidation reaction in one same SBR, and the ammonia nitrogen residual concentration in the SBR is controlled through the ammonia nitrogen on-line electrode; and the pH-ammonia nitrogen control method comprises the steps that a pH on-line electrode and the ammonia nitrogen on-line electrode are utilized, an aeration system is controlled to stop through the decreasing amplitude delta pH1 of the pH at the nitration period, the aeration system is controlled to start through the increasing amplitude delta pH2 of the pH in the anaerobic ammonia oxidation period, the partial nitrification and the anaerobic ammonia oxidation reaction are carried out in one same SBR alternatively, and the ammonia nitrogen residual concentration in the SBR is controlled through the ammonia nitrogen on-line electrode.

Methods and apparatus employing membrane filtration in biodegradation processes for treatment of wastewater are described. A bioreactor system is described having an equalization system, a membrane bioreactor system, and a controller. Aeration systems for a membrane bioreactor, such as a mixer, and an ultrafilter subsystem are also described, as is a rotary membrane ultrafilter.

The invention discloses a combined ultra-filtration device with membrane pollution control and ultrasonic cleaning functions. The device mainly comprises an ultra-filtration system, a blowing aeration system, an ultrasonic cleaning system, a pressurized dissolved air backwashing system and a programmable logic controller (PLC) system, wherein the ultra-filtration system consists of an ultra-filtration tank body and an ultra-filtration membrane assembly; the blowing aeration system consists of a blower and an aeration diffusion device; the ultrasonic cleaning system consists of an ultrasonic generator and a transducer; the pressurized dissolved air backwashing system consists of an air compressor, a pressurizing water pump and a dissolved air tank; and the PLC system consists of a PLC cabinet and a control microcomputer. By adopting a combined cleaning strategy, membrane pollution in the ultra-filtration process is well controlled, particularly pollutants can be effectively removed by using pressurized dissolved air backwashing, and the frequency of chemical cleaning is reduced; and by adopting the automatic PLC system, the device has the advantages of low running cost, long membrane service life and convenience in operation.

Disclosed is an improve aeration system. The aeration system of the present invention more efficiently removes contaminates, such as hydrogen sulfide, from water. The increased efficiency is achieved by adjusting the pH level of the water in between sequential mass transfer media stages within the aerator. The present invention also relates to an aeration system wherein the forced or induced air is used to strip contaminates from the processed water is reutilized by one or more aeration towers connected in series.

The invention discloses an integrating technology of a water supplying and saving and sewage reusing system in the petroleum and petrochemical industry, comprising a scientific water supplying and course water saving system, a sewage treating and reusing system and a circularly regulating system. Impurities in sewage are removed after the sewage passes by a grid and particulate matters and oil slick are separated by adding deoiling agent; floating slag, emulsible oil and suspended substances are removed by adding special coagulant during dissolved air floatation; water passes through an anaerobic biochemical system, a fluidized bed biochemical system and a blast aeration system and is added with bio-energizer, and after vortex-vortex air flotation, organic matters and heavy metal in the water are removed and the water is dephosphorized and denitrogenated; the water passes by a secondary sedimentation tank, a filter tank, an intermediate transit pool, a biological filter, a middle-high pressure dissolved air floatation and a biological carbon tower and is filtered, and feculence and colloid are removed; disinfectant is added into the water before the water is filtered so as to control the propagation and the pollution and block of microorganisms; scruff and mud are condensed by dehydrating agent and are dried and recycled; the water is desalted by a reverse osmosis apparatus and is added with special agents for antisludging, sterilizing and cleaning; antisludging agent, inhibitor and sterilizing agent are added by an intelligent monitoring system, the weight concentration of water reach 5.0 to 6.0, and all the water can be recycled. The invention has skilled process and strong operability, treats 800,000 tons of sewage, saves 600,000 tons of fresh water and increases the benefits by RMB760,000 yuan.

A method and apparatus for micro-aeration of large scale fermentation systems is provided. The micro-aeration system includes a fermentation reactor, a sparging apparatus, and a micro-aeration gas mixture delivered to the fermentation reactor via the sparging apparatus. The micro-aeration gas mixture is a very low oxygen concentration mixture comprising an oxygen containing gas and an inert carrier gas that is preferably recycled through the fermentation reactor. The inert carrier gas is preferably nitrogen whereas the oxygen containing gas is oxygen or and is introduced to the fermentation reactor at a minimum superficial velocity of about 0.02 m/sec to produce a uniform dispersion of the oxygen/air throughout the fermentation broth while concurrently mixing the entire fermentation broth. The micro-aeration method and apparatus further comprises a controller operatively coupled to one or more control valves for regulating the micro-aeration conditions in the fermentation reactor.

The invention discloses a eutrophic substance removing method for lake water body and a device. A groove shaped water channel is arranged in the middle of a floating bed, and an aeration system, a flocculant automatic distribution and a feeding system, a stirrer set, a magnetic separation system and a settlement tank or a filtering net are arranged on the channel in front-to-back sequence, and the front end and the back end of the channel are respectively provided with a water quality automatic detecting device. When the floating bed walks in the water body, water flow passes through the channel and is added with the flocculant, stirred, and flocs is formed, absorbed by the magnetic separation system and removed. The eutrophic substance removing method for lake water body can be industrialized and continuously operated with a large water treatment quantity conveniently and simply. The method is quite suitable for the treatment of the eutrophic substances in lakes.

The invention discloses high-efficiency kitchen waste aerobic fermentation equipment. The equipment comprises a fermentation bin, a grinding and dehydrating system, a stirring and pushing system, a heating system, a biological deodorizing system, an aeration system, a water supply system and an automatic control system. According to the fermentation equipment, kitchen waste compost is divided intofour stages including grinding, heating, high temperature and curing, and parameters of the heating system, stirring system, aeration system and water supply system can be independently set in each stage, so that parameters in three bins can be finely controlled, and effective performance of fermentation can be favored; and the dynamic respiratory index DRI is applied in the kitchen waste fermentation equipment to serve as an index for measuring product maturity, and the quality of mature fertilizer can be finally guaranteed by the advanced monitoring method.