FR2786176A1 - Treating chlorine-treated swimming pool water to reduce release of nitrogen trichloride and chloro-halogenated gases into the atmosphere and the formation of organochlorine compounds in the pool water - Google Patents
Treating chlorine-treated swimming pool water to reduce release of nitrogen trichloride and chloro-halogenated gases into the atmosphere and the formation of organochlorine compounds in the pool water Download PDFInfo
- Publication number
- FR2786176A1 FR2786176A1 FR9814722A FR9814722A FR2786176A1 FR 2786176 A1 FR2786176 A1 FR 2786176A1 FR 9814722 A FR9814722 A FR 9814722A FR 9814722 A FR9814722 A FR 9814722A FR 2786176 A1 FR2786176 A1 FR 2786176A1
- Authority
- FR
- France
- Prior art keywords
- water
- irradiation
- filter
- pool water
- pool
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 22
- 239000000460 chlorine Substances 0.000 title claims abstract description 22
- 230000009182 swimming Effects 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 title claims abstract description 7
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 5
- QEHKBHWEUPXBCW-UHFFFAOYSA-N nitrogen trichloride Chemical compound ClN(Cl)Cl QEHKBHWEUPXBCW-UHFFFAOYSA-N 0.000 title abstract description 6
- 150000004045 organic chlorine compounds Chemical class 0.000 title abstract 3
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 6
- 238000005660 chlorination reaction Methods 0.000 claims abstract description 6
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000011282 treatment Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000003134 recirculating effect Effects 0.000 abstract 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 3
- 230000000249 desinfective effect Effects 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- VAZJLPXFVQHDFB-UHFFFAOYSA-N 1-(diaminomethylidene)-2-hexylguanidine Polymers CCCCCCN=C(N)N=C(N)N VAZJLPXFVQHDFB-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010015946 Eye irritation Diseases 0.000 description 1
- 229920002413 Polyhexanide Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 231100000013 eye irritation Toxicity 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Inorganic materials Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 1
- -1 hypochlorite ions Chemical class 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229940093158 polyhexanide Drugs 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 206010039083 rhinitis Diseases 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
La présente invention concerne un dispositif pour entretenir les qualités de l'eau des piscines et bassins traités par chloration, pour réduire les émissions de tri-chlorure d'azote et de gaz chloro-halogénés dans l'atmosphère de ces piscines et bassins et pour réduire la formation d'organo-chlorés dans l'eau de ces piscines et bassins. The present invention relates to a device for maintaining the qualities of the water in swimming pools and basins treated by chlorination, for reducing the emissions of nitrogen tri-chloride and chloro-halogenated gases in the atmosphere of these swimming pools and basins and for reduce the formation of organochlorines in the water of these swimming pools and basins.
Traditionnellement, la stérilisation des eaux de piscines s'effectue selon l'un des procédés : -introduction continue ou intermittente dans l'eau d'un produit désinfectant comme chlore, brome, polyhéxanide ou peroxyde d'hydrogène ; -électrolyse de chlorure de sodium ou de cuivre et argent ;
Ces procédés sont efficaces mais se partagent les inconvénients suivants : -dosage difficile à réguler en fonction du nombre de baigneurs ; -dégradation des matériaux constituant les parois des bassins ; -augmentation de l'instabilité du P. H. de l'eau entraînant l'usage d'acide fort ; -turbidité contraignant à l'usage d'un produit floculant aux effets secondaires ; -accumulation de résidus chimiques complexes ; -rejet d'effluents contenant des organo-chlorés difficilement bio-dégradables ; -émission dans l'atmosphère de tri-chlorure d'azote et de chloro-halogénés toxiques pour l'Homme et nuisibles à l'environnement ;. Traditionally, the sterilization of swimming pool water is carried out according to one of the processes: - continuous or intermittent introduction into the water of a disinfecting product such as chlorine, bromine, polyhexanide or hydrogen peroxide; -electrolysis of sodium chloride or copper and silver;
These methods are effective but share the following drawbacks: -dose difficult to regulate depending on the number of bathers; -degradation of the materials constituting the walls of the basins; -increased water pH instability resulting in the use of strong acid; -turbidity constraining the use of a flocculating product with side effects; -accumulation of complex chemical residues; -rejection of effluents containing organo-chlorines that are difficult to biodegrade; -emission into the atmosphere of nitrogen tri-chloride and chloro-halogens toxic to humans and harmful to the environment;
Le dispositif selon l'invention permet de remédier à certains de ces inconvénients et de réduire les autres. Il comporte : -un dispositif d'injection dans l'eau de gaz carbonique CO2 sous-pression, en amont du groupe de filtration de l'eau, la quantité de gaz carbonique injectée étant régulée en fonction d'une lecture continue ou intermittente du potentiel hydrogène de l'eau et de la teneur de l'eau en chlore actif ; -un dispositif d'irradiation de l'eau, en aval du ou des filtres, par rayonnement ultraviolet bactéricide de longueur d'onde 253,7 nanomètre, dans une ou plusieurs chambres de traitement selon les caractéristiques dimensionnelles du groupe de filtration de l'eau de la piscine ou du bassin ; -un dispositif d'injection de chlore dans l'eau, en aval du dispositif d'irradiation, donc en milieu stérilisé, avant le retour de l'eau ainsi traitée vers la piscine ou le bassin, la quantité de chlore injectée étant régulée en fonction d'une lecture continue ou intermittente de la teneur de l'eau en chlore actif. The device according to the invention overcomes some of these drawbacks and reduces the others. It includes: -a device for injecting pressurized carbon dioxide CO2 into the water, upstream of the water filtration unit, the quantity of carbon dioxide injected being regulated as a function of a continuous or intermittent reading of the hydrogen potential of the water and the active chlorine content of the water; a device for irradiating water, downstream of the filter or filters, by bactericidal ultraviolet radiation of wavelength 253.7 nanometers, in one or more treatment chambers according to the dimensional characteristics of the filtration group of the pool or basin water; a device for injecting chlorine into the water, downstream from the irradiation device, therefore in a sterilized medium, before the water thus treated is returned to the swimming pool or the basin, the quantity of chlorine injected being regulated by function of a continuous or intermittent reading of the water content of active chlorine.
Le gaz carbonique injecté dans l'eau, en amont du ou des filtres, se dissout pendant la filtration de l'eau. Cette carbonatation est régulée pour le maintien d'un rapport entre ions H+ et OH-favorisant la prépondérance de la proportion"active"de la teneur de l'eau en chlore. The carbon dioxide injected into the water, upstream of the filter or filters, dissolves during the filtration of the water. This carbonation is regulated to maintain a relationship between H + and OH-ions, favoring the preponderance of the "active" proportion of the chlorine content of the water.
Après carbonatation et après filtration, l'exposition de l'eau au rayonnement ultraviolet bactéricide 253,7 détruit les capacités de reproduction des bactéries en quantités considérables dans l'eau qui vient d'tre filtrée. After carbonation and after filtration, the exposure of water to bactericidal ultraviolet radiation 253.7 destroys the reproductive capacity of bacteria in considerable quantities in the water which has just been filtered.
L'injection régulée de chlore dans l'eau, après irradiation, donc en milieu stérilisé, confère à l'eau, avant son retour dans le bassin ou la piscine, des propriétés désinfectantes suffisant à la protection des baigneurs pendant la durée du cycle de filtration de la totalité du volume de la piscine ou du bassin. The regulated injection of chlorine into water, after irradiation, therefore in a sterilized environment, gives the water, before its return to the pool or swimming pool, disinfecting properties sufficient to protect bathers during the duration of the filtration of the entire volume of the pool or basin.
La destruction des quantités considérables de germes, présents dans l'eau en sortie du ou des filtres, étant assurée par l'irradiation de l'eau en aval du ou des filtres, la consommation de produit chloré ne correspond plus qu'à la consommation de chlore actif répondant à l'apport de pollution dans la piscine ou le bassin par les baigneurs et l'atmosphère. The destruction of the considerable quantities of germs, present in the water leaving the filter or filters, being ensured by the irradiation of the water downstream of the filter (s), the consumption of chlorine product no longer corresponds only to the consumption of active chlorine responding to the contribution of pollution in the swimming pool or the basin by the bathers and the atmosphere.
Le dispositif décrit ci-dessus procure les avantages : -le maintien dans l'eau d'une proportion plus importante de chlore actif (acide hypochloreux HOCI) que de chlore potentiel (ions hypochlorite CI0-) ; -la réduction de la consommation de produit chloré ; -la protection de tous les éléments de l'installation contre l'entartrage ; -la suppression de la nécessité d'utiliser un acide fort ; -la réduction des dégradations des parois causées par de l'acide fort ; -la réduction de la teneur de l'eau de la piscine en chlore combiné, chlorures et organochlorés qui polluent les eaux de rejet ; -une réduction de la teneur de l'eau en micro-organismes et donc en matières azotées, assurant une limpidité suffisante sans recourir à la floculation ; -une réduction des émissions de tri-chlorure d'azote NCI3 et des dérivés chloro-halogénés dans l'atmosphère ; -la réduction des causes d'irritations oculaires, gnes respiratoires, toux anormales, asthmes, rhinites, éprouvés par les usagers et personnels des piscines chlorées ; -la réduction des volumes d'eau et d'air à renouveller ; -la réduction des quantités d'énergie nécessaires au chauffage de l'eau, à la ventilation et à la climatisation des locaux des piscines et bassins couverts ;
La conjugaison des trois traitements"carbonatation régulée avant filtration","irradiation bactéricide après filtration"et"chloration régulée après irradiation"donc en milieu stérilisé, en s'appuyant sur les interactions entre potentiel hydrogène de l'eau, proportion"active"de la teneur de l'eau en chlore et teneur de l'eau en matières azotées, pennet d'optimiser l'action désinfectante du chlore, de faciliter la maintenance, de protéger les personnes et de limiter les effets pervers du chlore sur l'environnement. The device described above provides the advantages: -the maintenance in water of a higher proportion of active chlorine (hypochlorous acid HOCI) than of potential chlorine (hypochlorite ions CI0-); -reducing the consumption of chlorinated product; -the protection of all elements of the installation against scaling; -the removal of the need to use a strong acid; -reduction of wall degradation caused by strong acid; -reducing the pool water content of combined chlorine, chlorides and organochlorines which pollute the waste water; a reduction in the content of water in microorganisms and therefore in nitrogenous materials, ensuring sufficient clarity without resorting to flocculation; -a reduction in nitrogen tri-chloride NCI3 and chloro-halogenated derivatives in the atmosphere; -reduction of the causes of eye irritations, respiratory discomfort, abnormal coughs, asthma, rhinitis, experienced by users and staff of chlorinated swimming pools; -reducing the volumes of water and air to be renewed; -reducing the amounts of energy required for water heating, ventilation and air conditioning in swimming pool and indoor pools;
The combination of the three treatments "regulated carbonation before filtration", "bactericidal irradiation after filtration" and "regulated chlorination after irradiation", therefore in sterilized medium, relying on the interactions between hydrogen potential of water, "active" proportion of the chlorine content of the water and the nitrogen content of the water, to optimize the disinfecting action of chlorine, to facilitate maintenance, to protect people and to limit the perverse effects of chlorine on the environment .
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9814722A FR2786176B3 (en) | 1998-11-23 | 1998-11-23 | DEVICE FOR MAINTAINING THE WATER OF CHLORINE POOLS, FOR REDUCING THE EMISSIONS OF NITROGEN TRICHLORIDE AND CHLOROHALOGENS IN THE AIR OF THESE POOLS AND REDUCING THE FORMATION OF ORGANO-CHLORINES IN THE WATER OF THESE POOLS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9814722A FR2786176B3 (en) | 1998-11-23 | 1998-11-23 | DEVICE FOR MAINTAINING THE WATER OF CHLORINE POOLS, FOR REDUCING THE EMISSIONS OF NITROGEN TRICHLORIDE AND CHLOROHALOGENS IN THE AIR OF THESE POOLS AND REDUCING THE FORMATION OF ORGANO-CHLORINES IN THE WATER OF THESE POOLS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2786176A1 true FR2786176A1 (en) | 2000-05-26 |
| FR2786176B3 FR2786176B3 (en) | 2001-01-26 |
Family
ID=9533068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9814722A Expired - Fee Related FR2786176B3 (en) | 1998-11-23 | 1998-11-23 | DEVICE FOR MAINTAINING THE WATER OF CHLORINE POOLS, FOR REDUCING THE EMISSIONS OF NITROGEN TRICHLORIDE AND CHLOROHALOGENS IN THE AIR OF THESE POOLS AND REDUCING THE FORMATION OF ORGANO-CHLORINES IN THE WATER OF THESE POOLS |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2786176B3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010024742A1 (en) * | 2008-08-26 | 2010-03-04 | Lennart Olausson | A method for treatment of circulating water and a swimming pool circulation system having an arrangement for treating water |
-
1998
- 1998-11-23 FR FR9814722A patent/FR2786176B3/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010024742A1 (en) * | 2008-08-26 | 2010-03-04 | Lennart Olausson | A method for treatment of circulating water and a swimming pool circulation system having an arrangement for treating water |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2786176B3 (en) | 2001-01-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse | ||
| ST | Notification of lapse | ||
| RN | Application for restoration | ||
| IC | Decision of the director general to declare irreceivable or to reject an appeal |