[go: up one dir, main page]

EP1137601A1 - Procede et dispositif de traitement de l'eau d'un bassin - Google Patents

Procede et dispositif de traitement de l'eau d'un bassin

Info

Publication number
EP1137601A1
EP1137601A1 EP99970983A EP99970983A EP1137601A1 EP 1137601 A1 EP1137601 A1 EP 1137601A1 EP 99970983 A EP99970983 A EP 99970983A EP 99970983 A EP99970983 A EP 99970983A EP 1137601 A1 EP1137601 A1 EP 1137601A1
Authority
EP
European Patent Office
Prior art keywords
vibrations
water
transducer
basin
vibration source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99970983A
Other languages
German (de)
English (en)
Inventor
Hilaire Fernand Achille Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomas Hilaire Fernand Achille
Original Assignee
Thomas Hilaire Fernand Achille
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomas Hilaire Fernand Achille filed Critical Thomas Hilaire Fernand Achille
Publication of EP1137601A1 publication Critical patent/EP1137601A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/025—Ultrasonics
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/42—Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools

Definitions

  • the present invention concerns a method and a device to treat the water in a basin, in particular to at least remove certain organisms from the water of the basin and to fight them.
  • basin any pool in any shape whatsoever according to the invention, containing water, either of natural or artificial origin.
  • swimming pools water collection basins, water tanks and ponds, but in a more general way it is not excluded to apply the invention in harbour docks and such.
  • the invention is in the first place meant to prevent algal growth in the water, but in a more general way it is not excluded to apply the invention also to suppress other organisms, such as fungi and the like.
  • the invention aims a method and a device for treating the water of a basin, which make it possible to efficiently remove and/or fight at least certain organisms and/or contaminations.
  • it aims a method and a device with which algae can be suppressed, without any chlorine having to be used to this end, and without any other chemicals having to be used to this aim.
  • the aim is to at least exclude an excess of chlorine.
  • the invention in the first place concerns a method, characterised in that it consists of producing vibrations in the water, in particular vibrations which suppress the organisms concerned.
  • vibrations By applying vibrations according to the invention, the above-mentioned organisms, in particular the algae, can be destroyed in no time, and the growth of new algae can be easily prevented in a permanent manner. In new installations, the growth of algae is prevented from the beginning.
  • vibrations are easily transmitted in liquid, so that the entire mass of water can be easily covered, and it is possible to obtain a large efficiency with a relatively small capacity.
  • vibrations are used which damage the organisms or parts thereof by means of resonance effects created therein.
  • the algae die as the vacuoles in the alga cells are ripped apart and implode in the algae as a result of the resonance. De dead algae can then be easily removed from the water, for example in the case of a swimming pool by means of a pool vacuum cleaner or in any other way whatsoever.
  • vibrations in the ultrasonic range preferably at least in the frequency range of 20 to 35 kHz.
  • a very efficient suppressing method is obtained when vibrations having different frequencies are generated.
  • the frequency will be periodically altered. By changing the range of the frequency, various frequencies get a chance to act, resonance vibrations are produced in all the aimed organisms, in particular in the algae, as a result of which they are killed.
  • different frequencies are applied in steps, so that at least every frequency concerned gets a chance to act for a specific length of time, as a result of which the organisms are subjected with great certainty for a certain length of time to the vibrations they resist the least.
  • the applied vibrations will be interrupted, preferably periodically. This creates so to say a shock effect. Indeed, the inventor found that the organisms concerned, in particular the algae, can resist this even less.
  • the periodic lengths between the changes and/or interruption periods of the vibrations last at least 2 seconds .
  • Use is preferably made of vibrations which consist of a square wave, or which approach a square wave.
  • the square wave can hereby have a local deformation, preferably in the shape of a protruding lip in the waveform, better still a lip which connects to one or both flanks of the square wave, in particular in the shape of what is called an overshoot. A large quantity of harmonics are created by this lip, so that the range of frequencies with which the organisms are fought is considerably increased.
  • a vibration source to generate the vibrations, consisting of a transducer.
  • a transducer offers the advantage that it is small and can be made water-resistant, so that it can be mounted under water, and thus in direct contact with the water, which promotes an optimal efficiency. It is not excluded, however, to use other vibration sources, preferably however vibration sources that are fit to be placed under water.
  • the invention also concerns a device to realise the above- described method, characterised in that it mainly consists of a vibration generator and at least one vibration source coupled thereto which is fit to produce vibrations in the water of a basin.
  • the vibration generator is provided with an electronic circuit which makes it possible to generate vibrations of the above-described frequencies and/or waveforms .
  • This device is preferably built-in permanently in the basin, but it is not excluded to provide a mobile device which can for example be put in the basin daily for a couple of hours, for example during the night.
  • the invention also concerns a transducer, in particular a transducer which is specially designed for realising the above-mentioned method and device, characterised in that this transducer contains at least one strip-shaped vibrating element which resonates when an electric signal is given having a frequency between 20 and 35 kHz.
  • the intermediate frequency is preferably situated at about 27.5 kHz, and the vibrating element has a bandwidth of two times 7.5 kHz, on either side of the medium frequency respectively.
  • this transducer according to the invention is made water-tight, and there is preferably no air lock between the actual vibrating element and the water. Also in the case when another vibration source is applied, such an air lock is preferably avoided.
  • figure 1 schematically represents a swimming pool which is equipped with a device according to the invention
  • figure 2 represents the part indicated by F2 in figure 1 as a section and to a larger scale
  • figure 3 represents a waveform of the vibrations which are preferably applied
  • figure 4 represents a schematic variant of the part which is indicated by arrow F4 in figure 1
  • figure 5 shows a variant of an application of the invention.
  • Figure 1 represents a basin in the shape of a swimming pool 1 which is equipped with a device 2 according to the invention to generate vibrations 3 in the water 4 in correspondence with the above-mentioned method of the invention.
  • the device 2 mainly consists of a vibration generator 5 and at least one vibration source 6 which is fit to generate the above-mentioned vibrations 3.
  • the vibration generator 5 consists of a circuit which makes it possible to generate electric vibrations which are transformed in acoustic vibrations at the vibration source 6. It is clear that this vibration generator 5 preferably has an electronic nature and is built such that vibrations are produced having the characteristics mentioned in the introduction. On the basis of the information mentioned in the introduction regarding the nature and form of the vibrations, any professional will know how the electronic circuit is built. That is why the exact construction of such a circuit is not described in detail.
  • the vibration source 6 may be of any nature whatsoever, use is preferably made, as represented in figures 1 and 2, of an underwater transducer. Such a transducer offers the advantage that it is small and is ideally fit to generate the vibrations concerned in the water 4, and it can be mounted under water itself .
  • the transducer preferably contains a vibrating element 7, consisting of a laminated structure, in particular of ceramic material, which starts vibrating when an electric signal produced by the vibration generator 5 is transmitted to it .
  • the transducer has a tubular housing 8 made of plastic, for example PVC.
  • the vibrating element 7 is disconnected from said housing 8, by means of a structure made of foam plastic, preferably urethane, provided between this vibrating element 7 and the housing 8.
  • the water-tight sealing of the whole, as well as the embedment of the connector 10, are obtained by means of an epoxy mass 11 and plastic sealings 12 and 13, preferably made of urethane.
  • the transducer has a diameter in the order of magnitude of 5 cm and a length of about 13 cm.
  • the vibration source 6, in this case the transducer, can be fixed to a support 14, such as an -shaped strut which is fixed to the wall 15 of the swimming pool 1, as represented in figure 1.
  • the support 14 is preferably attached by means of a glued assembly so as not to undermine the watertightness of the wall 15.
  • the vibration source 6, and in particular the transducer is mounted at a short distance under the normal water level 16.
  • This offers the advantage that only a small volume of water will have to be drained from the swimming pool 1 in view of the mounting.
  • Another advantage consists in that the transducer can be accessed as of the edge of the swimming pool 1, such that, if necessary, said transducer can be detached from the support 14 out of the water, for example when it needs to be replaced.
  • the vibration source 6, in particular the transducer is mounted at a distance D of about 30 cm under the water level 16.
  • the vibration source 6, i.e. the transducer, is directed with the main direction Z according to which the vibrations 3 are transmitted in the longitudinal direction of the swimming pool l.
  • the distance to the opposite wall 17 is kept as long as possible, and the risk of waves being reflected which considerably attenuate the forward wave is minimised.
  • the main direction Z is preferably horizontal or practically horizontal .
  • a vibration source 6 is preferably used with an effective transmission angle A of at least 100 degrees, and better still 180 or almost 180 degrees, as indicated in figure 2.
  • the vibration generator 5 is preferably situated above the water and is connected to the vibration source 6 situated under the water via a cable 18.
  • the vibration source 6 can be mounted in a recess in the wall of the swimming pool 1 instead of on a support 14, such that it does not hinder the users of the swimming pool 1.
  • the vibration generator 5 and the vibration source 6 can be mounted in a housing 19 which has a shape as indicated by the dashed line in figure 1, such that the presence of the part situated above the water 4 automatically has for a result that the users of the swimming pool 1 cannot get into contact with the vibration source 6.
  • the vibration generator 5 can be fed as such via a connection to the mains or such.
  • the working of the device 2 can be easily derived from what precedes and mainly consists in that, when the vibration generator 5 is switched on, vibrations 3 as mentioned above are produced which fight the organisms concerned, in particular the algae. It is clear that the vibration generator 5 can be switched on either permanently, either regularly during a certain period, whereby it can be switched on either or not automatically in the latter case.
  • the ultrasonic soun d h as no influence whatsoever on people, it is not exclu d ed to switch off the device 2 every time a user is in t h e swimming pool 1, for example by means of a sensor.
  • figure 3 represents an embodiment of the waveform 20 which is preferably applied and which, as alrea d y explained in the introduction, consists of a square wave with a lip 21 in the shape of an overshoot.
  • Figure 4 schematically represents another variant whereby the vibration source 6 is situated above the water, and the vibrations 3 are conducted in the water 4 by means of a conducting channel 22, whereby this conducting channel 22 is preferably also filled with water.
  • the invention can be used both in conventional swimming pools and in other types of swimming pools, such as bio swimming pools, by which are meant swimming pools in which grow plants. Especially for such bio swimming pools, the invention is particularly useful, as the use of chlorine is excluded because of the plants. It can also be used in ponds, lakes, harbour docks, storage reservoirs and the like.
  • Figure 5 shows an example of such a bio swimming poo l 1 .
  • it consists of at least two parts, a first part 23 in which are provided plants an d which functions as a water treatment basin, and a second part 2 4 respectively in which can be swum and which is usually deeper than the first part 23.
  • a layer of gravel 25 On the bottom of the first part 23 is provided a layer of gravel 25, upon which can be formed a layer of bacteria.
  • the water 4 is pumped round through the gravel in a manner which is not represented here, so that a purification effect is obtained with the help of the above-mentioned layer of bacteria.
  • a vibration source 6 combined with the conventional elements of such a bio swimming pool, forms an ideal combination to keep said swimming pool 1 clean. Because of the large mass of water which is situated in the swimming pool 1, a good dissipation of the energy is obtained, such that algae which are very sensitive to the vibrations concerned are killed, whereas the less sensitive bacteria which clean the water together with the plants are preserved. Moreover, the invention makes it possible to search for optimal frequencies and bandwidths for the vibrations 3, so that certain organisms, by which are meant the algae in the first place, are efficiently suppressed, whereas other organisms are preserved.
  • the vibration source 6, and in particular the transducer is provided in the first part 23.
  • Another advantage is that the vibration source 6 is more or less hidden behind the plants and is situated in the part where there is no swimming normally, so that the users of the swimming pool 1 are not hindered by i .
  • the vibration source can be fixed to a float, such that the whole can be simply placed in the water without any special supporting structures having to be provided.
  • the vibration source is fixed such under the float that the vibrating element is situated underneath the water surface.
  • Such an embodiment with a float offers the advantage that it can be easily removed and can be used anywhere.
  • a transducer in the case of the embodiment with a float, use will be preferably made of a transducer, but other forms of vibration sources are not excluded.
  • the electronic unit which is required to generate the vibrations can be either or not attached to the float.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physical Water Treatments (AREA)

Abstract

L'invention concerne un procédé de traitement de l'eau d'un bassin, notamment pour éliminer au moins certains organismes de l'eau (4) du bassin (1) et pour les combattre, caractérisé en ce qu'il consiste à produire des vibrations (3) dans l'eau (4), notamment des vibrations (3) supprimant les organismes concernés par le biais d'une résonance.
EP99970983A 1998-10-28 1999-10-27 Procede et dispositif de traitement de l'eau d'un bassin Withdrawn EP1137601A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9800777 1998-10-28
BE9800777A BE1012254A6 (nl) 1998-10-28 1998-10-28 Werkwijze en inrichting voor het behandelen van water in een zwembad, zwembad dat is uitgerust met dergelijke inrichting, alsmede transducer hiervoor.
PCT/BE1999/000135 WO2000024678A1 (fr) 1998-10-28 1999-10-27 Procede et dispositif de traitement de l'eau d'un bassin

Publications (1)

Publication Number Publication Date
EP1137601A1 true EP1137601A1 (fr) 2001-10-04

Family

ID=3891490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99970983A Withdrawn EP1137601A1 (fr) 1998-10-28 1999-10-27 Procede et dispositif de traitement de l'eau d'un bassin

Country Status (4)

Country Link
EP (1) EP1137601A1 (fr)
AU (1) AU1366800A (fr)
BE (1) BE1012254A6 (fr)
WO (1) WO2000024678A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2596688B (en) * 2019-04-04 2022-11-09 Mitsubishi Electric Corp Floating matter guidance control device, floating matter guidance system, and floating matter guidance control method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58128113A (ja) * 1982-01-25 1983-07-30 Hitachi Kiden Kogyo Ltd 下水処理における藻の発生及び付着防止方法
FR2663648B1 (fr) * 1990-06-25 1992-11-20 Havas Francois Dispositif electroacoustique de traitement de l'eau.
JPH06218360A (ja) * 1992-06-22 1994-08-09 Honda Electron Co Ltd 超音波炭酸ガス脱気方法及び装置
JPH07203801A (ja) * 1994-01-24 1995-08-08 Marsima Aqua Syst Corp 湖沼・池等の植物性プランクトン沈降装置
DE19614240C1 (de) * 1996-04-10 1997-06-05 Ppv Verwaltungs Ag Ultraschallvorrichtung zum Entkeimen von Flüssigkeiten
JP3267904B2 (ja) * 1997-08-20 2002-03-25 株式会社マリン技研 水域浄化装置
JPH11156353A (ja) * 1997-11-21 1999-06-15 Haruyoshi Yamazaki アオコの簡易沈澱法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0024678A1 *

Also Published As

Publication number Publication date
BE1012254A6 (nl) 2000-08-01
WO2000024678A1 (fr) 2000-05-04
AU1366800A (en) 2000-05-15

Similar Documents

Publication Publication Date Title
US5735226A (en) Marine anti-fouling system and method
US20030228195A1 (en) Pool using deep-sea water and its surrounding facilities
DK1242703T3 (da) Bölgebassinkonstruktion
US20100126942A1 (en) Multi-frequency ultrasonic apparatus and process with exposed transmitting head
EP1137601A1 (fr) Procede et dispositif de traitement de l'eau d'un bassin
AU719646B2 (en) Wave pool curbing system
Bjørnø Underwater rain noise: sources, spectra and interpretations
EP0976322A3 (fr) Aquarium ou récipient d'eau
CA2393109A1 (fr) Appareil a rayonnement pour sons emis sous l'eau
NL1002693C1 (en) Liq.-surface covering system in vessel
US7819084B2 (en) Water agitation system for water retention structure
JPS60126023A (ja) 海洋生物増殖槽
JPH1170396A (ja) 「水域のうつろ」を利用したサンライトホールシステム
KR102365026B1 (ko) 초음파 반응벽체
EP4382492A1 (fr) Antennes à ondes ultrasoniques pour l'élimination d'algues et de microorganismes
JP3566501B2 (ja) 凝灰岩を骨材とするポーラスブロック
Sharaki Tensioned flexible membrane breakwater for obliquely incident waves.
JPH01250566A (ja) プール
RU2149795C1 (ru) Способ разрушения ледяного покрова
KR200275004Y1 (ko) 패류의 양식 장치
RU96123622A (ru) Плавучий водоприемник
JP2563501B2 (ja) 浮体構造物
JP3285397B2 (ja) 水琴窟
KR970052451U (ko) 초음파가습기의 물탱크청소구조
JPH01256615A (ja) 海洋生物の付着防止方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010504

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20020227

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RTI1 Title (correction)

Free format text: METHOD AND DEVICE FOR TREATING WATER IN A BASIN

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THOMAS, HILAIRE FERNAND ACHILLE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: THOMAS, HILAIRE FERNAND ACHILLE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20030423