• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for the treatment of wastewater comprising a treatment chamber (2) inside which are disposed staged modules (6, 6 ', 6' ') of filtration, said chamber being provided with two low (10) and high (11) discharge pipes equipped respectively with valves (12, 13). This device comprises a frame (7) arranged in the chamber and connected thereto by means of damping means (17), a vibrating member (18) of said frame (7) and an evacuation duct (19a) with large opening. Application to the cleaning of biofilters.
    公开号:BE1024268B1
    申请号:E2016/5911
    申请日:2016-12-09
    公开日:2018-01-16
    发明作者:Patrick Hoffman
    申请人:Libourne Company Limited；
    IPC主号:
    专利说明:

    (73) Holder (s):
    LIBOURNE COMPANY LIMITED
    VG1110, TORTOLA Virgin Islands (British) (72) Inventor (s):
    HOFFMAN Patrick - HANOI Viet Nam (54) Device for the treatment of waste water.
    (57) The invention relates to a device for the treatment of waste water comprising a treatment chamber (2) inside which are arranged staged modules (6, 6 ′, 6) of filtration, said chamber being provided with two low (10) and high (11) evacuation pipes fitted respectively with valves (12, 13). This device comprises a chassis (7) arranged in the chamber and connected to the latter by means of damping means (17), a vibrating member (18) of said chassis (7) and a discharge duct. (19a) with large opening. Application to the cleaning of biofilters.
    ï

    4î fig. 1
    BELGIAN INVENTION PATENT
    FPS Economy, SMEs, Middle Classes & Energy
    Publication number: 1024268 Deposit number: BE2016 / 5911
    Intellectual Property Office International Classification: C02F 3/04 C02F 3/06 C02F 3/26 Date of issue: 16/01/2018
    The Minister of the Economy,
    Having regard to the Paris Convention of March 20, 1883 for the Protection of Industrial Property;
    Considering the law of March 28, 1984 on patents for invention, article 22, for patent applications introduced before September 22, 2014;
    Given Title 1 “Patents for invention” of Book XI of the Code of Economic Law, article XI.24, for patent applications introduced from September 22, 2014;
    Having regard to the Royal Decree of 2 December 1986 relating to the request, the issue and the maintenance in force of invention patents, article 28;
    Given the patent application received by the Intellectual Property Office on 09/12/2016.
    Whereas for patent applications falling within the scope of Title 1, Book XI of the Code of Economic Law (hereinafter CDE), in accordance with article XI. 19, §4, paragraph 2, of the CDE, if the patent application has been the subject of a search report mentioning a lack of unity of invention within the meaning of §ler of article XI.19 cited above and in the event that the applicant does not limit or file a divisional application in accordance with the results of the search report, the granted patent will be limited to the claims for which the search report has been drawn up.
    Stopped :
    First article. - It is issued to
    LIBOURNE COMPANY LIMITED, Morgan & Morgan Building Pasea Estate Road Town, VG1110 TORTOLA Virgin Islands (British);
    represented by
    VAN VARENBERG Patrick, Arenbergstraat 13, 2000, ANTWERPEN;
    a Belgian invention patent with a duration of 20 years, subject to the payment of the annual fees referred to in article XI.48, §1 of the Code of Economic Law, for: Device for the treatment of wastewater.
    INVENTOR (S):
    HOFFMAN Patrick, 41 ngo 209 Doi Can Street Ba Dinh District, -, HA NOI;
    PRIORITY (S):
    12/10/2015 LU 92897;
    DIVISION:
    divided from the basic application: filing date of the basic application:
    Article 2. - This patent is granted without prior examination of the patentability of the invention, without guarantee of the merit of the invention or of the accuracy of the description thereof and at the risk and peril of the applicant (s) ( s).
    Brussels, 01/16/2018, By special delegation:
    B E2016 / 5911
    Device for the treatment of waste water.
    The technical sector of the present invention is that of devices for treating wastewater by a trickle bed or by biofilter.
    A device of this type is known which aims to purify waste water.
    Thus, patent FR-2895394 describes a device 1 comprising a treatment chamber 2 inside which opens in the upper part a supply channel 3 and 4 for waste water. The treatment chamber 2 is organized to provide hybrid treatment either with a trickle bed or with a biofilter. A conical perforated plate 5 makes it possible to distribute, in the upper part, the wastewater in a homogeneous manner. The filtration means consist of stepped modules 6, 6 'and 6 at a distance D separating two consecutive modules. These modules include a retaining member 7 forming a perforated plate of filter material 8. This plate allows water to flow from one module to another. The retaining member 7 and the material 8 are integrated into a framework 9 fixed inside the chamber 2.
    The chamber 2 is provided with two discharge channels 10 and 11 for the treated water after flow through the modules 6. The channel 10 is provided at the base of the chamber 2 and the channel 11 in the upper part of the chamber. These channels are fitted with respective valves 12 and 14 so that, in the open position, the treated water flows out.
    Note that when the valve 12 is open and the valve 14 closed the device operates in a trickle bed, while when the valve 12 is closed and the valve 14 open the device operates in biofilter.
    B E2016 / 5911
    A discharge pump 13 is provided to direct the treated water to another place in the purification station when necessary, the valve 12 being in the closed position.
    An oxygenation device 16 is provided at the base of the chamber 2 to regulate the operation of the device in the biofilter position.
    Control means 15 are provided for controlling the various valves 12 and 14, the oxygenation device 16 and the pump 13.
    This device has drawbacks both in operation in a trickle bed or by biofilter.
    As a reminder, the trickle bed consists in causing the water to be treated, settled before settling, to trickle through a system of sprinklers onto a mass of porous or cavernous material which supports the purifying microorganisms. Aeration is generally carried out by natural draft. The filter bed must not be flooded (stopping the aerobic function).
    During operation, the risk of clogging and production of unstabilized sludge is real.
    In fact, the water to be treated conveys suspended matter which in the long term risks blocking the porosity of the bed. The mud produced accelerates this clogging process. This therefore requires the construction of an effective pretreatment and a primary settling upstream of the bed. In addition, with the exception of low load beds where the acceptable hydraulic flow is too low, a high hydraulic load must be applied exceeding the minimum self-cleaning flow (0.5 to 0.6 m 3 / m 2 / h). Sludge produced in a low-load bed does not require stabilization. On the other hand, the sludge produced by the high-load beds, in a quantity comparable to the activated sludge processes, must be stabilized.
    B E2016 / 5911
    Controlling the natural draft of the air is difficult and generates strong odors. This difference in temperature between the draw depends on the bed and the outside environment. At certain times of the year, there is therefore a risk of oxygenation failure leading to fermentation in areas of low trade and production of unpleasant odors. Fermentation is accelerated by the progressive clogging of the bed, which then has to be mechanically covered and ventilated. This results in high investment costs.
    Bacterial bed processes require major civil engineering works. For a station of 1,000 equivalent inhabitants, the investment cost is around 220 C / equivalent inhabitants, or 80% of the investment cost for an activated sludge process.
    Biofilters are recent intensive biological processes (the rates of chemical reactions are high). They have a double function:
    - The biological transformation of organic and nitrogenous matter by fixed bacteria;
    - Physical retention of suspended matter, especially sludge produced in excess.
    In biofilter operation, the drawbacks are linked to poor control of clogging and production of unstabilized sludge.
    The filtration phenomenon associated with the production of excess biomass due to pollution control implies a progressive fouling of the biofilter. The washing sequences (1 to 2 times a day) are therefore decisive for the proper functioning of the fixed bed biofilter. On the other hand, the risk of clogging is significantly lower in moving bed biofilters.
    B E2016 / 5911
    Note that washing is the only sludge production station: for an average yield of chemical oxygen demand (COD} of 67%, 0.40 kg of DM / kg of COD removed is produced against 0.7 kg of MS / kg of COD eliminated produced by an activated sludge process This sludge after storage in a tank must undergo a stabilization treatment.
    In addition, maintenance must be frequent for good efficiency.
    For a treatment chain comprising a physico-chemical pretreatment followed by a biofilter, routine maintenance is 500 to 2,000 hours / year. It is comparable to that of a medium load activated sludge process.
    This treatment requires the presence of qualified people. This intensive process requires careful monitoring to avoid any advance in operation and to control clogging. Apart from reliable automation and a remote alarm, operating personnel must be qualified in the maintenance and control of electromechanical equipment.
    Finally, the energy cost is very high. The electrical consumption is of the order of 1 to 1.4 kWh / kg of COD eliminated.
    The average annual operating cost is high and in the range of 15 to 20% of the investment price, ie from € 27 to € 36 / equivalent inhabitants / year.
    The investment cost is also high, on the order of 20 to 30% higher than that of an activated sludge process. It takes from € 190 to € 220 / equivalent inhabitants for a treatment plant of 50,000 equivalent inhabitants
    However, investment and operating costs are difficult to assess because they depend
    B E2016 / 5911 strongly from the case under consideration. The preceding figures are therefore given for information only.
    The role of a biofilter washing phase consists in restoring its initial assimilation capacity: it must be effective enough to entrain the suspended matter and get a certain thickness of biofilm. Depending on the technologies used, there are several types of washing: so-called "normal" washes, mini washes, exceptional washes.
    Normal washing generally takes place in several phases:
    - backwashing by blowing air at a high flow rate, washing proper, by detaching and entraining, biofilm and suspended matter by a mixture of "clean" air and water,
    - rinsing with "clean" water.
    The "clean" water used for the washing phases is purified water stored in a tank called "clean water tank" located downstream of the biofilter, or directly located on the biofilter. The amount of water required for washing is of the order of 2.5 m 3 of water / m 3 of material to be washed.
    The washing step is a key step in the overall functioning of a biofilter. It must be perfectly controlled because it can cause a possible loss of material if the flow rates are too high, or cause washing frequencies that are too close together if the washing is not efficient enough.
    It should be noted that all the technological evolutions proposed by the manufacturers of biofilters have been and are still oriented towards better management of clogging and washing; in view of the operating costs associated with washing, it will be understood
    B E2016 / 5911 have to easily ensure that the main objective is to wash better at a lower cost.
    During the washing of a biofilter, the used water continues to arrive in the installation: several biofilters are required in parallel for continuity of treatment.
    The minimum number of reactors is 4; this is explained by the fact that when one of these biofilters is being washed, the flow rate jerk to be distributed over the 3 others represents a little more than 33% of the filtration flow rate; whereas it would represent 50% on a station which would only have 3 biofilters, and 100% if there were only 2.
    The distribution of used water, washing water, the recovery of dirty and clean water, the distribution of process air and washing air in the different units using complex circuits controlled by organs at
    Biofiltration is done with pumps, compressors, remote valves, as well as a large number of valves. The management of these circuits, as well as the programming of washing cycles, are automated steps.
    The object of the present invention is to provide a device which overcomes the drawbacks described very widely and in detail above.
    The invention therefore relates to a device for the treatment of waste water comprising a treatment chamber 1 inside which are arranged staged filtration modules, said chamber being provided with two low and high evacuation pipes respectively equipped with valves, characterized in that it comprises a chassis arranged in the chamber and connected to the latter by means of a damping means, a vibrating member of said chassis and a discharge pipe with large opening.
    According to a characteristic of the invention, the means
    B E2016 / 5911 of damping consists of a flexible element.
    According to another characteristic of the invention, the chamber is provided with a support for receiving the damping means and the chassis.
    Advantageously, the chassis is in the form of a stainless steel tank.
    According to another characteristic of the invention, the discharge pipe is equipped with a quick-opening valve, said pipe having a diameter of approximately 350 to 500 mm.
    Advantageously, the valve is a guillotine, solenoid or pneumatic valve.
    According to yet another characteristic of the invention, the vibrating member is of the eccentric, rotary or impact type, with compressed air or electro-mechanical.
    According to yet another characteristic of the invention, the discharge duct provides a flushing effect on the wastewater.
    According to yet another characteristic of the invention, the device comprises a control means making it possible to control the opening and closing of the various valves, the activation of the vibration means and of an oxygenation means and the activation of '' a discharge pump.
    A very first advantage of the present invention lies in the automatic control of the operation of the device without the intervention of qualified personnel.
    Another advantage lies in the use of simple means to ensure the separation of the clogging sludge from the filters.
    Other characteristics, advantages and details of the invention will be better understood on reading the additional description which follows of an embodiment given by way of example in relation to a drawing in which FIG. 1 represents a section longitudinal of the device.
    B E2016 / 5911
    In the following description, the elements previously described in the prior art are repeated. In fact, the device according to the invention constitutes an improvement on this prior device and the common references have been kept.
    To this end, the device 1 further comprises a frame 7 in which the filtration elements 8 are arranged. This chassis is inserted into the treatment chamber 2 while being spaced therefrom. This treatment chamber is in the form of a concrete tank. This chassis 7 rests on a support 20 fixed in the internal wall of the chamber 2 at a certain distance from the bottom of the latter. The chassis 7 rests on this support 20 by means of a damping means 17 constituted by a flexible element. The advantage of this means 17 is to isolate the chassis 7 relative to the chamber 2.
    Advantageously, the chassis 7 is in the form of a stainless steel tank.
    In the figure, it can be seen that the perforated plate 5 is provided at its base with a deflector 21 making it possible to direct the waste water only towards the chassis 7.
    The chassis 7 has at its base a vibrating member 18 intended to communicate vibrations to it as will be explained below. The vibrating member 18 can be of the eccentric, rotary or impact type, with compressed air or electromechanical.
    The chamber is furthermore provided with a discharge 19a with a large opening equipped with a valve 19b with rapid opening. This conduit 19a can have a diameter of approximately 350 to 500 mm to ensure complete emptying of the chassis almost instantaneously. Thus, the discharge pipe 19a provides a flushing effect on the wastewater. The valve 19b can be a guillotine, solenoid or pneumatic valve.
    B E2016 / 5911
    All of these elements additional are connected in a way of ordered 15 allowing of order the opening and the closing of different valves 12, 14, 19b, activation means of vibration 18 and means
    oxygenation 16 and activation of the discharge pump 13. Thus, the control means 15 can close the valve and open the valve 12 to ensure operation of the device 1 in a trickle bed. Conversely, this means can close the valve 12 and open the valve 14 to ensure biofilter operation in interaction with the oxygenation means to supply oxygen permanently, the medium must imperatively remain aerobic.
    The cleaning sequence is as follows. The vibration means 18 are controlled, which vibrates the chassis 7. This vibration causes the filter elements 8 to unclog the sludge accumulated on the surface and between themselves. After a certain period of vibration, the opening of the valve 19b is controlled using the control means 15 and the large opening of the conduit 19a ensures a flushing effect of all the sludge to completely empty the chassis 7. This operation allows physical removal of the biofilm remaining on the filtration elements and slag previously shaken and unhooked mechanically by the vibrating member.
    Of course, during this operation the valves 12 and 14 are closed.
    It goes without saying that if the device 1 is in the biofilter position, it is previously put into a trickling bed by the closing of the valves 12 and 14.
    The cleaning carried out is essential, because it is a key step for the proper functioning of the device 1 (cost-effectiveness-functionality ratio) of a biofilter or
    B E2016 / 5911 trickle bed. Thanks to this innovation, the cleaning operation is made ultra simple and infinitely less expensive compared to an existing system.
    B E2016 / 5911
    权利要求:
    Claims (10)
    [1]
    1 / invention relates to a device for the treatment of waste water comprising a treatment chamber (2) inside which are arranged staged modules (6, 6 ', 6) of filtration, said chamber being provided with two conduits low (10) and high (11) discharge valves equipped with valves (12, 13) respectively.
    1. Device for the treatment of waste water comprising a treatment chamber (2) inside
    [2]
    2. Device for the treatment of waste water according to claim 1, characterized in that the means
    15 damping (17) is constituted by a flexible element.
    [3]
    3. Device for the treatment of wastewater according to claim 1 or 2, characterized in that the chamber (2) is provided with a receiving support (20) of the damping means (17) and the chassis (7) .
    20
    [4]
    4. Device for the treatment of waste water according to claim 3, characterized in that the frame (7) is in the form of a stainless steel tank.
    [5]
    5 characterized in that the discharge conduit (19a) provides a flushing effect on the wastewater.
    5. Device for treating wastewater according to any one of the preceding claims,
    25 characterized in that the discharge conduit (19a) is equipped with a quick opening valve (19b), said conduit having a diameter of approximately 350 to 500 mm.
    5 which are arranged step modules (6, 6 ', 6) of filtration, said chamber being provided with two low discharge pipes (10} and high (11) respectively equipped with valves (12, 13), characterized in that that it comprises a frame (7) arranged in the chamber and connected to
    10 thereof using a damping means (17), a vibrating member (18) of said frame (7) and a discharge opening (19a) with large opening.
    [6]
    6. Device for treating wastewater according to claim 5, characterized in that the valve (19b)
    30 is a guillotine, solenoid or pneumatic valve.
    [7]
    7. Device for the treatment of waste water according to any one of the preceding claims, characterized in that the vibrating member (18) is of the type
    B E2016 / 5911 eccentric, rotary or impact, compressed air or electromechanical.
    [8]
    8. Device for treating wastewater according to any one of the preceding claims,
    [9]
    9. Device for treating wastewater according to any one of the preceding claims, characterized in that it comprises a control means (15)
    10 enabling the opening and closing of the various valves (12, 14, 19b) to be controlled, the activation of the vibration means (18) and of an oxygenation means (16) and the activation of a pump discharge (13).
    B E2016 / 5911
    B E2016 / 5911
    Device for the treatment of waste water.
    [10]
    10 This device comprises a chassis (7) arranged in the chamber and connected to the latter by means of damping means (17), a vibrating member (18) of said chassis (7) and a conduit for discharge (19a) with large opening.
    Application to the cleaning of biofilters.
    类似技术:
    公开号 | 公开日 | 专利标题
    CA1337878C|1996-01-02|Process and device for purifying wastewater over a biological filter having particles lighter than water
    RU2606435C2|2017-01-10|Reactor for biological treatment of waste water and method
    BE1024268B1|2018-01-16|Device for the treatment of wastewater.
    EP3242859B1|2019-05-08|Sewage treatment device, such as a vertical-percolation planted filter, comprising a system for active aeration of a saturated lower layer
    FR2673932A1|1992-09-18|METHOD AND APPARATUS FOR THE TREATMENT OF BIOLOGICAL WASTEWATER.
    CN103043786A|2013-04-17|Slow carbon source releasing media filter device and process with deep denitrification function
    KR101578977B1|2015-12-21|Advanced wastewater treatment MBR| process for reducing membrane fouling
    EP2018231B1|2014-07-16|Use of an reagent injector for equipping a water treatment reactor, comprising a nozzle associated with a dispersing member
    EP1542931A1|2005-06-22|Method and device for reducing production of wastewater treatment station sludge with fixed biological cultures
    EP2743209A1|2014-06-18|Water treatment vessel intended for being buried, including an outer wall having projecting elements
    FR2913419A1|2008-09-12|Biological process for the treatment of wastewater in which organic matters are degraded by bacterial activity, comprises performing an extensive or intensive biological treatment of wastewater slightly or strongly filled with pollution
    CN103449665A|2013-12-18|Land biological precipitation and filtering system for muddy water separation of sewage
    EA027583B1|2017-08-31|Device for biological treatment and post-treatment of wastewater and method of biological treatment and post-treatment of wastewater
    WO2011161329A1|2011-12-29|Bioreactor with separate oxygenation and trickling filter areas, and treatment method
    CN203382619U|2014-01-08|Sewage-land biological filtration and precipitation system for removing suspended solids and organic matters from sewage
    CN211946459U|2020-11-17|System for realizing enhanced denitrification of deep bed denitrification filter
    RU92658U1|2010-03-27|SEWAGE TREATMENT UNIT
    JP3439576B2|2003-08-25|River purification method and purification device
    EP1982962A1|2008-10-22|Method of converting a septic tank into a biological waste water treatment plant.
    JP2014166601A|2014-09-11|Sewage treatment apparatus and method
    RU2581U1|1996-08-16|ORLOV FILTER-DENITRIFICATOR
    JPH11169879A|1999-06-29|Organic waste water treating device and method therefor
    FR2999562A1|2014-06-20|Plant, useful for treating i.e. domestic waste water, has tank including ventilation enclosure and clarification enclosure, where water to-be purified passes through enclosures, and clarification enclosure is connected with output pipe
    FR2998292A1|2014-05-23|Device, useful for treating e.g. domestic wastewater, comprises upper portion for receiving microorganisms for biological treatment of wastewater, and lower portion provided with floor trough for receiving sludge produced during treatment
    JP2001212585A|2001-08-07|Combined treatment method for single treatment cleaning tank
    同族专利:
    公开号 | 公开日
    RO131971A2|2017-06-30|
    FR3045032A1|2017-06-16|
    FR3045032B1|2021-10-29|
    RO131971B1|2021-02-26|
    LU92897B1|2017-06-19|
    BE1024268A1|2018-01-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20030111431A1|1996-12-10|2003-06-19|Schreiber Corporation|High rate filtration system|
    RU2154616C1|1998-12-18|2000-08-20|Тумченок Виктор Игнатьевич|Microfilter for water treatment|
    US20100252066A1|2001-05-23|2010-10-07|Robert Kaiser|Method and apparatus for decontamination of sensitive equipment|
    US20040226897A1|2003-01-29|2004-11-18|Boner Mark C.|Apparatus and method for filtering fluids|
    FR2895394A1|2005-12-27|2007-06-29|Stronglead Ltd|Water treatment device for purification station comprises a feeding canal through which the worn water is introduced into a treating chamber having a distribution body, and a floating pump|
    US20100282654A1|2007-10-15|2010-11-11|Martin Hauschild|Integrated water processing technology|
    WO2011058566A1|2009-11-16|2011-05-19|Treatec 21 Industries Ltd.|Multistage biological reactor|
    US20130001161A1|2011-06-28|2013-01-03|Mark Boner|Biological Treatment and Compressed Media Filter Apparatus and Method|
    WO2014138535A1|2013-03-08|2014-09-12|Xyleco, Inc.|Filtration|CN108824521A|2018-06-28|2018-11-16|蒋建|A kind of river course clear up preventing clogging up device that draws water based on water flow variation|
    法律状态:
    2018-02-22| FG| Patent granted|Effective date: 20180116 |
    2018-03-21| PD| Change of ownership|Owner name: MELLION LIMITED; HK Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CESSION; FORMER OWNER NAME: LIBOURNE COMPANY LIMITED Effective date: 20180309 |
    优先权:
    申请号 | 申请日 | 专利标题
    LU92897A|LU92897B1|2015-12-10|2015-12-10|Device for the treatment of wastewater|
    LU92897|2015-12-10|
    [返回顶部]