ASTM D4472-2008 Standard Guide for Recordkeeping for Reverse Osmosis and Nanofiltration Systems《反渗透系统的记录保持的标准指南》.pdf

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1、Designation: D 4472 08Standard Guide forRecordkeeping for Reverse Osmosis and NanofiltrationSystems1This standard is issued under the fixed designation D 4472; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi

2、on. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide covers procedures for well-defined record-keeping of reverse osmosis (RO) and nanofiltration (NF)systems.1.2 This gui

3、de includes a start-up report, recordkeeping ofRO and NF operating data, recordkeeping of pretreatmentoperating data, and a maintenance log.1.3 This guide is applicable to waters including brackishwaters and seawaters but is not necessarily applicable towastewaters.1.4 The values stated in SI units

4、are to be regarded asstandard. No other units of measurement are included in thisstandard.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practic

5、es and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 1125 Test Methods for Electrical Conductivity and Re-sistivity of WaterD 1129 Terminology Relating to WaterD 1253 Test Method for Residual Chlorine in WaterD 1889 Test Method for T

6、urbidity of Water3D 3739 Practice for Calculation and Adjustment of theLangelier Saturation Index for Reverse OsmosisD 4189 Test Method for Silt Density Index (SDI) of WaterD 4194 Test Methods for Operating Characteristics of Re-verse Osmosis and Nanofiltration DevicesD 4195 Guide for Water Analysis

7、 for Reverse OsmosisApplicationD 4582 Practice for Calculation and Adjustment of the Stiffand Davis Stability Index for Reverse OsmosisD 6161 Terminology Used for Microfiltration, Ultrafiltra-tion, Nanofiltration and Reverse Osmosis Membrane Pro-cesses3. Terminology3.1 DefinitionsFor definitions of

8、terms used in this guide,refer to Terminology D 1129 and D 6161.4. Significance and Use4.1 Proper operation and maintenance of RO and NFsystems are key factors in obtaining successful performance.This guide provides the necessary input for the evaluation ofthe performance of the RO and NF systems, t

9、he pretreatmentsystem, and the mechanical equipment in the plant.4.2 This guide is for general guidance only and must not beused in place of the operating manual for a particular plant.4.3 Site-dependent factors prevent specific recommenda-tions for all recordkeeping. Thus, only the more generalreco

10、rdkeeping is covered by this guide.4.4 This guide can be used for both brackish and seawatersystems which contain either spiral-wound or hollow-fiberdevices.5. Procedure5.1 Start-Up Report:5.1.1 Provide a complete description of the RO or NF plant.This can be done by using a flow diagram and equipme

11、nt,instrumentation, and material lists to show water source,pretreatment system, RO or NF configuration, and posttreat-ment system.5.1.2 Record initial performance of RO or NF and pretreat-ment systems as provided in 5.2 and 5.3, respectively.5.1.3 Calibrate all gauges and meters based on manufactur

12、-ers recommendations.1This guide is under the jurisdiction of ASTM Committee D19 on Water and isthe direct responsibility of Subcommittee D19.08 on Membranes and Ion ExchangeMaterials.Current edition approved May 1, 2008. Published May 2008. Originallyapproved in 1985. Last previous edition approved

13、 in 2003 as D 4472 89 (2003).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.1Copyright ASTM Inter

14、national, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2 RO or NF Operating Data (see D 4194):5.2.1 Record the permeate and brine flows of each stage inthe RO or NF system.5.2.2 Record the feed, permeate, and brine pressures of eachstage. For hollow-fiber dev

15、ices also record the brine pressurefor each permeator.5.2.3 Record the water temperature of the feed stream afterthe RO or NF pump or of the permeate stream.5.2.4 Record the pH of the feed, permeate, and brinestreams.5.2.5 Record the conductivity of the feed, permeate, andbrine streams for each stag

16、e. For hollow-fiber devices, alsorecord the brine conductivity of each permeator. For conduc-tivity measurements use Test Methods D 1125.5.2.6 Record the Silt Density Index (SDI) or turbidity of theRO or NF feed stream, or both. For SDI measurements use TestMethod D 4189. For turbidity measurement u

17、se Test MethodD 1889 (nephelometric turbidity).5.2.7 Record the Langelier Saturation Index (LSI) of thebrine stream from the last stage. For LSI determination usePractice D 3739.NOTE 1For brackish water applications with RO brine streams10 000 mg/L total dissolved solids and for seawater, the Stiff

18、and DavisStability Index (S operating data; recordkeeping; reverseosmosisTABLE 1 Recommended Frequency of Data CollectionEvery 8 h Daily Weekly MonthlyFlowsPressures:XAXsystem (by stages)permeator (brine port)XAXXAXTemperature XAXpHConductivity:XAXsystem (by stages)permeator (brine port)XAXAXAXSDI o

19、r turbidity, or both XAXLSI XUnusual incidences on occurrenceAThe size of the RO system and its operator coverage will determine a practicalfrequency.D4472082ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standa

20、rd. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewe

21、d every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible

22、technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D4472083