ELECTROMECHANICAL AERATOR FOR AERATION OF LIQUIDS

Abstract: An electromechanical aerator composed of an immersion pump equipped with her discharge pipe device, fixation and regulation plate for the distribution, with aeration of the liquid. When the liquid level is sufficiently high (depends of pump manufacturer instruction) the immerged pump II starts to pump. At that moment the treated liquid is pumped through the pump discharge pipe III against the regulation plate V. Due to the liquid velocity of the liquid stream against this plate V liquid jets are formed which are dispersed over the surface of the tank I. Due to this dispersion ambient air is introduced in the liquid. The aeration capacity can be regulated by changing the distance between the fixation plate IV and the regulation plate V. By using optional T-piece VII, a certain amount of the pumped liquid is due to the pressure losses evacuated through the T-piece VII. The amount of liquid evacuated (recycled) through the T-piece VII can be regulated by the regulation device VI (bolt or similar) and/or changing the distance between the fixation plate IV and the regulation plate V by the fixation bolts and nuts. If the aeration capacity by dispersion is not sufficient, a venturi VIII in option can be installed in the discharge pipe II in order to suck ambient air above the liquid level into this venturi VIII.

Description: ELECTROMECHANICAL AERATOR FOR AERATION OF LIQUIDS The invention is related to an aerator with immerged electrical motor pump and with uniform liquid distribution/aeration system above the liquid level, which can be used in all kind of aeration applications in any kind of liquid like as in wastewater and groundwater and in very low liquid levels. There are known aerators with electrical motor above the liquid level whose are floating on the liquid surface or fixed above the liquid level. There are also known mechanical aerators with immerged electrical motor with aeration distribution beneath liquid level. There is also the so-called " Dresdner aerator " which is applied in groundwater winning plants where the water splash from above against a plate and there are the spray aerators, which discharge trough special nozzles. The document with EPO application N° 95202690.4-2014 represents an apparatus for sewage treatment with trickling filter which utilise this system especially for distribution system and recycling of the treated water over the trickling filter. The object of the present invention is to apply this distribution system as an aeration system 'Albatros'. This aerator 'Albatros' is composed of an immersion pump equipped with her discharge pipe device and the regulation plate for the distribution with aeration of the liquid. The liquid is distributed above the liquid level by an immersion pump which is placed in the liquid. The liquid is pumped against a regulation plate so that the liquid is distributed above the surface of the liquid level. Due to the liquid velocity of the liquid stream against this regulation plate liquid jets are formed which are dispersed over all ( or a part of) the surface of the tank. Due to this dispersion ambient air is introduced in the liquid. Changing the distance between the fixation plate and the regulation plate we can easily regulate the aeration capacity. In option one we install in the discharge pipe a T-piece so that an amount of pumped liquid can be recycled ( for example in activated sludge system for recycling the activated sludge ). Changing the distance between the fixation plate and the regulation plate in combination eventually with the optional regulating device we can regulate the recycling capacity of the liquid. In option two we can increase the aeration capacity by installing in the discharge pipe a venturi system. This venturi system sucks ambient air (or oxygen) from above the liquid level. The advantages offered by this invention are the simplicity and the flexibility. The deeper the liquid level the greater the aeration capacity, due to the capacity/height characteristic of the centrifugal impeller of the immerged pump. In the same way the lower the liquid level, the smaller the aeration capacity. The 'Albatros'- aerator works also with very low liquid level ( a few centimetres - this depends only of the pump manufacturer working conditions ) They are also other advantages. This 'Albatros'- aerator can be put in any kind basin, floating in the liquid by means of floating device or stand with the pump base on the bottom of the tank. The 'Albatros'- aerator can also be used as a liquid mixer. This simplicity and flexibility result in low investment price so that it is a very interesting aerator especially for applying in small domestic wastewater plants. The invention shall be explained below with the help of following drawing. Following sheet with figures illustrates the 'Albatros'-aerator installed in a liquid at a certain liquid level of the tank. Figure 1 shows a vertical section and figure 2 an upper view. In the figure 2 a square form for the plate is drawn, but another form ( round ) or shape is also possible ( see figure 3 ). Also 2 fixation bolts are drawn but this quantity can be more. With reference to these figures, reference numeral I denominates the tank with the liquid which has to been aerated ( or mixed ). The immersion pump II, the discharge pipe III, the fixation plate IN, the regulation plate N with optional regulation device NI, the optional T-piece Nπ, the optional venturi VIII. The operation principle of the 'Albatros'- aerator is the following. When the liquid level is sufficiently high ( depends of pump manufacturer instructions ) the immerged pump II starts to pump. At that moment the treated liquid is pumped through the pump discharge pipe III against the regulation plate N. Due to the liquid velocity of the liquid stream against this plate N liquid jets are formed which are dispersed over all ( or a part of) the surface of the tank I. Due to this dispersion ambient air is introduced in the liquid. Changing the distance between the fixation plate IN and the regulation plate N regulate the aeration capacity. By using the optional T-piece Nil in the discharge pipe III, a certain amount of the pumped liquid is due to the hydraulic pressure losses evacuated through the T-piece Nil eventually in combination with optional regulating device NI. The amount of the liquid evacuated ( recycled ) through the T-piece Nil can be regulated by the regulation device NI ( bolt or similar ) and/or by changing the distance between the fixation plate IN and the regulation plate N by means of the fixation bolts and nuts. If the aeration capacity by dispersion is not sufficient, a venturi NIII can be installed in option in the discharge pipe III in order to suck ambient air (or oxygen) above the liquid level into the venturi NIII. The form and shape of the regulation plate V can be chosen shaped instead of flat ( as in figure 1 ) and rectangular instead of square ( as in figure 2 ) in order to obtain better dispersion and also greater oxygen efficiency and capacity ( as for example in figure 3 ).

Claims: Claims: 1. An electromechanical aerator 'Albatros' composed of an immersion pump equipped with her discharge pipe device, fixation and the regulation plate for the distribution with aeration of the liquid. 2. An electromechanical aerator 'Albatros' composed of an immersion pump equipped with her discharge pipe device, fixation and the regulation plate for the distribution with aeration of the liquid with optional T-piece and with eventually optional regulation device for recycling the liquid. 3. An electromechanical aerator 'Albatros' composed of an immersion pump equipped with her discharge pipe device, fixation and the regulation plate for the distribution with aeration of the liquid with optional venturi system for increasing of the aeration capacity 4. An electromechanical aerator 'Albatros' composed of an immersion pump equipped with her discharge pipe device, fixation and the regulation plate for the distribution with aeration of the liquid with optional T-piece and with eventually optional regulation device for recycling the liquid and with optional venturi system for increasing of the aeration capacity 5. Application of the electromechanical aerator 'Albatros' with or without options for the aerobic treatment of biological degradable waste water of individual houses, small industrial plants or other sources of biological degradable wastewater. 6. Application of the electromechanical aerator 'Albatros' with or without options for the aerobic treatment of liquor from manure of farms. 7. Application of the electromechanical aerator 'Albatros' as mixing system with or without options in any kind of liquids. 8. Application of the electromechanical aerator 'Albatros' as aeration system with or without options in any kind of liquids. AMENDED CLAIMS [received by the International Bureau on 2 February 2001 (02.02.01); new claim 9 added; remaining claims unchanged (1 page)] 1. An electromechanical aerator 'Albatros' composed of an immersion pump equipped with her discharge pipe device, fixation and the regulation plate for the distribution with aeration of the liquid. 2. An electromechanical aerator 'Albatros' composed of an immersion pump equipped with her discharge pipe device, fixation and the regulation plate for the distribution with aeration of the liquid with optional T-piece and with eventually optional regulation device for recycling the liquid. 3. An electromechanical aerator 'Albatros' composed of an immersion pump equipped with her discharge pipe device, fixation and the regulation plate for the distribution with aeration of the liquid with optional venturi system for increasing of the aeration capacity 4. An electromechanical aerator 'Albatros' composed of an immersion pump equipped with her discharge pipe device, fixation and the regulation plate for the distribution with aeration of the liquid with optional T-piece and with eventually optional regulation device for recycling the liquid and with optional venturi system for increasing of the aeration capacity 5. Application of the electromechanical aerator 'Albatros' with or without options for the aerobic treatment of biological degradable waste water of individual houses, small industrial plants or other sources of biological degradable wastewater. 6. Application of the electromechanical aerator 'Albatros' with or without options for the aerobic treatment of liquor from manure of farms. 7. Application of the electromechanical aerator 'Albatros' as mixing system with or without options in any kind of liquids. 8. Application of the electromechanical aerator 'Albatros' as aeration system with or without options in any kind of liquids. 9. An electromechanical aerator 'Albatros' according to claim 1 , 2, 3 and 4 made standing alone, fixable, suspendable or floatable and applied in any kind of liquids, included any modification or alternative within the scope of previous claims.

Inventors: VAN GUCHT ROLAND, VAN GUCHT, ROLAND
Applicants: GUCHT ROLAND VAN, VAN GUCHT, ROLAND
Application year: 2000
Main classification: C02F3
IPC codes: B01F3, B01F5, B01F13, C02F3