1、 November 2012 DIN 19643-3 ICS 13.060.30 Supersedes DIN 196433:199704 and DIN 196434:199902 Treatment of water of swimming pools and baths Part 3: Combinations of process with ozonization, English translation of DIN 19643-3:2012-11 Aufbereitung von Schwimm und Badebeckenwasser Teil 3: Verfahrenskomb
2、inationen mit Ozonung, Englische bersetzung von DIN 196433:201211 Traitement de leau des bassins des piscines et des bains Partie 3: Combinaisons du procs avec ozonisation, Traduction anglaise de DIN 196433.201211 Document comprises 22 pages Translation by DINSprachendienst. In case of doubt, the Ge
3、rmanlanguage original shall be considered authoritative. No part of this standard may be reproduced without prior permission of DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DINNormen). English price g
4、roup 12 www.din.de www.beuth.de !$?v“ 1972883 11.15DIN 19643-3:2012-11 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Scope 4 2 Normative references 4 3 Principle of the process combinations 5 3.1 Flocculation filtration ozonation chlorination 5 3.2 Flocculation ozonation mult
5、i-layer filtration with sorption chlorination 5 4 Process stages . 6 4.1 Acid neutralizing capacity adjustment 6 4.1.1 General 6 4.1.2 Compounds used to adjust acid neutralizing capacity . 6 4.1.3 Acid neutralizing capacity values 6 4.1.4 Checking the acid neutralizing capacity 6 4.2 pH value adjust
6、ment . 6 4.3 Flocculation . 6 4.3.1 General 6 4.3.2 Flocculants . 7 4.3.3 Minimum quantity of flocculant to be added 7 4.3.4 Checking the flocculant dosage 7 4.4 Ozonation . 8 4.4.1 General 8 4.4.2 Ozone concentration by mass . 8 4.4.3 Ozone dosage . 9 4.4.4 Testing the ozone plant . 9 4.5 Flocculat
7、ion filtration in the process combination flocculation filtration ozonation sorption filtration chlorination 9 4.5.1 General 9 4.5.2 Filtration by rapid filters as specified in DIN 19605 . 10 4.5.3 Testing the filtration . 12 4.6 Sorption filtration in the process combination flocculation filtration
8、 ozonation sorption filtration chlorination 12 4.6.1 General . 12 4.6.2 Particle size ranges, filter bed heights and filtration rates . 13 4.6.3 Backwashing sorption filters . 13 4.6.4 Testing the filtration . 14 4.7 Multi-layer filtration in the process combination flocculation ozonation multi-laye
9、r filtration with sorption effect chlorination 14 4.7.1 General . 14 4.7.2 Particle size ranges, filter bed heights and filtration rates . 14 4.7.3 Backwashing multi-layer filters with sorption effect 15 4.7.4 Testing the filtration . 17 4.8 Testing the flocculation filtration and sorption filtratio
10、n . 17 4.9 Chlorination 18 4.9.1 General . 18 4.9.2 Chlorine concentration . 18 5 Load capacity factor, k . 18 Annex A (informative) Simplified representation of some process combinations (examples) 19 Bibliography 22 DIN 19643-3:2012-11 3 Foreword This standard has been prepared by Working Committe
11、e NA 119-04-13 AA Schwimmbeckenwasser of the Normenausschuss Wasserwesen (Water Practice Standards Committee). The revision was prompted by the wish to merge Parts 3 and 4 of the former version of this series of standards. DIN 19643 consists of the following parts, under the general title Treatment
12、of water of swimming pools and baths: Part 1: General requirements Part 2: Combinations of process with fixed bed filters and precoat filters Part 3: Combinations of process with ozonization Part 4: Combinations of process with ultrafiltration Further parts may be added to this standard in future. I
13、n order to ensure that the requirements set down in this standard are met, and bearing in mind economic aspects, it is recommended that only experienced specialist companies with appropriate references be commissioned to plan, build and install the treatment facilities. Furthermore, effectiveness of
14、 the treatment should be checked at regular intervals by experienced staff. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN (and/or DKE) shall not be held responsible for identifying any or all such patent rights. Amendments T
15、his standard differs from DIN 19643-3:1997-04 and DIN 19643-4:1999-02 as follows: a) the contents of the two standards have been merged; b) the option of omitting flocculation under certain conditions has been extended; c) the option of including requirement-adapted ozone dosing in plant design and
16、operation has been added; d) specifications concerning particle size ranges, filter bed heights, freeboard and backwashing programs for filtration have been re-arranged; e) requirements for disinfection of filter backwashing water with chlorine or chlorine dioxide have been added; f) the contents of
17、 the standard have been brought in line with state-of-the-art technology; g) normative references have been updated. Previous editions DIN 19643: 1984-04 DIN 19643-3: 1997-04 DIN 19643-4: 1999-02 DIN 19643-3:2012-11 4 1 Scope This standard, in conjunction with DIN 19643-1, applies to the treatment o
18、f water of swimming pools and baths by process combinations using ozonation. It also applies to therapeutic pools. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only th
19、e edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 19605, Fixed bed filters for water treatment Structure and components DIN 19624, Precoat filters for water treatment DIN 19627, Ozone plants for water treatment DIN
20、19643-1:2012-11, Treatment of water of swimming pools and baths Part 1: General requirements DIN 19645, Treatment of spent filter backwash water from systems for treatment of water of swimming-pools and baths DIN 38409-7, German standard methods for the examination of water, waste water and sludge P
21、arameters characterizing effects and substances (group H) Part 7: Determination of acid and base-neutralizing capacities (H 7) DIN EN 12904, Products used for treatment of water intended for human consumption Silica sand and silica gravel DIN EN 15031, Chemicals used for treatment of swimming pool w
22、ater Aluminium-based coagulants DIN EN 15075, Chemicals used for treatment of swimming pool water Sodium hydrogen carbonate DIN EN 15362, Chemicals used for treatment of swimming pool water Sodium carbonate DIN EN 15797, Chemicals used for treatment of swimming pool water Iron-based coagulants DIN E
23、N 15798, Chemicals used for treatment of swimming pool water Filter media DIN EN ISO 6878, Water quality Determination of phosphorus Ammonium molybdate spectrometric method DIN EN ISO 7027, Water quality Determination of turbidity DIN EN ISO 10304-1, Water quality Determination of dissolved anions b
24、y liquid chromatography of ions Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate DIN EN ISO 15681-1, Water quality Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) Part 1: Method by flow injection analysis (FIA)
25、 DIN EN ISO 15681-2, Water quality Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) Part 2: Method by continuous flow analysis (CFA) DIN ISO 9277, Determination of the specific surface area of solids by gas adsorption BET method DIN 19643-3:2012-11 5 Deuts
26、che Gesellschaft fr das Badewesen e. V.: Zustzliche Desinfektionsmanahmen durch Hochchlorung im Bereich der Badewasseraufbereitung Muster einer Dienstanweisung (Additional disinfection measures by means of high chlorination levels in pool water treatment Example of work instructions)1)Palin, A.T.: A
27、nalytical control of water disinfection with special reference to differential DPD methods for chlorine, chlorine dioxide, bromine, iodine, and ozone, J. Inst. Water Eng. 28 (1974), pp. 139-154 3 Principle of the process combinations 3.1 Flocculation filtration ozonation chlorination In the primary
28、stage, dissolved particulate and colloidal impurities are destabilized by flocculation using iron(III) and/or aluminium salts, flocculated and the orthophosphates are partially precipitated. For this process, the pH value of the raw water is kept within a range consistent with the type of flocculant
29、 used. In the second treatment stage, most of the particulate and colloidal substances are removed by flocculation filtration. In a third stage, the filtrate is treated by exposure to ozone in order to oxidize chemical constituents of the water, kill microorganisms and inactivate viruses. In the fou
30、rth treatment stage, pollutants precipitated by ozone treatment are removed using a sorption filter that also separates the oxidized pollutants and eliminates chlorination by-products as well as any residual ozone from the water. The filtrate is chlorinated and fed to the pool or bath. The load capa
31、city factor k is 0,6 m-3, equivalent to a supply water volume of 1,67 m3per person. 3.2 Flocculation ozonation multi-layer filtration with sorption chlorination In the flocculation ozonation multi-layer filtration chlorination combination of process, flocculation filtration and sorption filtration a
32、re combined in the multi-layer filtration component as a single, joint process stage. Due to the flocculating effect of ozone, the addition of other flocculants can be dispensed with if the water quality parameters specified in Table 2 of DIN 19643-1:2012-11 and the phosphate concentrations specifie
33、d in Table 7 are met. The plant design shall provide an option for subsequent installation of a dosing feeder for flocculants. The filtrate is chlorinated and fed to the pool or bath. The pollution load factor k is 0,6 m-3, equivalent to a supply water volume of 1,67 m3per person. 1) Obtainable from
34、: Deutsche Gesellschaft fr das Badewesen e.V., Postfach 340201, 45074 Essen. DIN 19643-3:2012-11 6 4 Process stages 4.1 Acid neutralizing capacity adjustment 4.1.1 General To achieve satisfactory flocculation, the acid neutralizing capacity, (KS4,3as in DIN 38409-7) of the raw water shall be maintai
35、ned at a given minimum value, depending on the type of flocculant used. This can be achieved by adding suitable filling water and/or chemicals to increase the acid neutralizing capacity. 4.1.2 Compounds used to adjust acid neutralizing capacity a) Sodium carbonate (soda), as in DIN EN 15362; b) sodi
36、um hydrogen carbonate, as in DIN EN 15075; c) calcium carbonate, in solid form, as in DIN EN 15798 (to be used as filter medium). 4.1.3 Acid neutralizing capacity values a) When applying the respective process combination for bathing facilities other than spa pools (bubbling pools) with their own tr
37、eatment facility: KS4,3 0,7 mol/m3; b) when applying the respective process combination for spa pools (bubbling pools) with their own treatment facility: KS4,3 0,3 mol/m3; c) when using flocculants with a basicity2) 65 %, the acid neutralizing capacity can be adjusted to KS4,3 0,3 mol/m3, as opposed
38、 to the value stated in a). 4.1.4 Checking the acid neutralizing capacity After the reagents added have been thoroughly dispersed, the acid neutralizing capacity of the raw water shall be determined to check for compliance with the specified minimum values. The value shall be determined weekly and t
39、he results documented in the logbook. 4.2 pH value adjustment The pH value shall be adjusted as described in DIN 19643-1. 4.3 Flocculation 4.3.1 General After the acid neutralizing capacity and pH value of the water have been adjusted, the flocculant shall be added continuously, uniformly and propor
40、tionally to the water using a feeder. The flocculant shall be quickly and thoroughly mixed with the water directly at the feed point. This can be achieved, for example, by means of an abrupt change in pipe diameter immediately downstream of the feed point, by the use of another technical device such
41、 as a static mixer, or locating the flocculant feed point upstream of the circulation pumps. 2) Basicity is a measure of the pre-neutralization of a product and is defined as: % basicity = (m/3n) x 100 %, where m is the molar quantity of OH- ions and n is the molar quantity of Al3+ions. DIN 19643-3:
42、2012-11 7 The reaction time up to when the water enters the filter body should be at least 10 s, with the flow velocity of the water not exceeding 1,5 m/s. Provided the values for the auxiliary hygiene parameters as specified in Table 2 of DIN 19643-1:2012-11 are complied with, addition of flocculan
43、t can be stopped at the earliest one hour after the end of the bathing session until the bathing session re-starts. 4.3.2 Flocculants Aluminium sulfate as in DIN EN 15031; aluminium chloride hexahydrate as in DIN EN 15031; sodium aluminate as in DIN EN 15031; aluminium hydroxide chloride or aluminiu
44、m hydroxide chloride sulfate as in DIN EN 15031; polyaluminium chloride with a basicity 50 % as in DIN EN 15031; iron(III) chloride hexahydrate as in DIN EN 15797; iron(III) chloride sulfate solution as in DIN EN 15797; iron(III) sulfate as in DIN EN 15797. 4.3.3 Minimum quanity of flocculant to be
45、added Correct dosage can only be maintained if the active substance content of the flocculant is known. The minimum quantity added shall be as follows: a) when aluminium salts are used: 0,05 g/m3(equivalent to 1,85 mmol/m3), as Al; b) when iron salts are used: 0,1 g/m3(equivalent to 1,78 mmol/m3), a
46、s Fe; c) when mixed products are used: 1,85 mmol/m3, in relation to the sum of iron and aluminium components. The manufacturer shall indicate the iron and aluminium concentrations. The correct operating of the dosing feeders shall be ensured. Furthermore, the dosing pump shall be checked regularly,
47、at the latest during maintenance or servicing work, by measuring the feed volume. The results of the inspection shall be documented in the logbook. Daily flocculant consumption shall be recorded in the logbook so that correctness of the settings and dosage can be verified. The values thus obtained s
48、hall be used to adjust the dosage quantity to the flow rate. 4.3.4 Checking the flocculant dosage The correct performance of the flocculation process shall be checked by verifying conformity to the filtrate requirements (see Table 7). Whenever the system is put into operation or the flocculant is ch
49、anged, the effectiveness of the flocculation stage shall be verified by measuring iron and/or aluminium concentrations upstream and downstream of the filtration stage. DIN 19643-3:2012-11 8 4.4 Ozonation 4.4.1 General Ozone plants shall comply with DIN 19627. The ozone shall be introduced into the water, either under vacuum or under pressure, using a system designed to match the entire water treatment facility, and shall be allowed to undergo the desired c
