This standard specifies the test conditions and test methods for hollow fiber reverse osmosis modules. This standard is applicable to the test of hollow fiber reverse osmosis modules with tap water, brackish water and seawater as feed water. It can also be used for the separation test of other aqueous solutions that do not damage the hollow fiber reverse osmosis membrane. This standard can be used as a reference for the test of spiral reverse osmosis modules. HY/T 054.2-2001 Hollow fiber reverse osmosis technology Hollow fiber reverse osmosis module test method HY/T054.2-2001 Standard download decompression password: www.bzxz.net
This standard specifies the test conditions and test methods for hollow fiber reverse osmosis modules. This standard is applicable to the test of hollow fiber reverse osmosis modules with tap water, brackish water and seawater as feed water. It can also be used for the separation test of other aqueous solutions that do not damage the hollow fiber reverse osmosis membrane. This standard can be used as a reference for the test of spiral reverse osmosis modules.
This standard is equivalent to the standard ASTMD4194:1995 "Reverse Osmosis Module Performance Test Method" of the American Society for Testing and Materials.
This standard and HY/T049-1999 "Hollow Fiber Reverse Osmosis Membrane Test Method" and HY/T054.1-2001 "Hollow Fiber Reverse Osmosis Technology Hollow Fiber Reverse Osmosis Components" are all sub-standards of "Hollow Fiber Reverse Osmosis Technology".
Appendix A of this standard is the appendix of the standard.
This standard is proposed and drafted by the Hangzhou Water Treatment Technology Research and Development Center of the State Oceanic Administration.
This standard is under the jurisdiction of the State Oceanic Standard and Metrology Center.
The main drafters of this standard are Lin Siqing, Mo Jianxiong, Sun Zhiying, and Zhao Yulan.
This standard is entrusted to the Hangzhou Water Treatment Technology Research and Development Center of the State Oceanic Administration for interpretation. -
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards.
UB/T11896-1989 Determination of chloride in water by silver nitrate titration
HY/T049-1999 Test method for hollow fiber reverse osmosis membrane

ICS07.060
Marine industry standard of the People's Republic of China
HY/T054.2--2001
20030080
Hollow fiber reverse osmosis technology
Testing methods for hollow fiber RO module
Hollow fiber reverse osmosis technology-Testing methods for hollow fiber RO modulePublished on 2001-07-27
Published by the State Oceanic Administration
Implemented on 2002-01-01
HY/T054.2—2001
This standard equivalently adopts the American Society for Testing and Materials standard ASTMD4194:1995 "Reverse Osmosis Module Performance Test Method". This standard, HY/T049-1999 "Test Methods for Hollow Fiber Reverse Osmosis Membranes" and HY/T054.1-2001 "Hollow Fiber Reverse Osmosis Technology Hollow Fiber Reverse Osmosis Components" are all substandards of "Hollow Fiber Reverse Osmosis Technology". Appendix A of this standard is the appendix of the standard.
This standard was proposed and drafted by the Hangzhou Water Treatment Technology Research and Development Center of the State Oceanic Administration. This standard is under the jurisdiction of the National Marine Standards and Metrology Center. The main drafters of this standard are: Lin Siqing, Mo Jianxiong, Sun Zhiying, Zhao Yulan. This standard is entrusted to the Hangzhou Water Treatment Technology Research and Development Center of the State Oceanic Administration for interpretation. 1 Scope
Marine Industry Standard of the People's Republic of China
Hollow fiber reverse osmosis technology
Testing methods for hollow fiber RO module
Hollow fiber reverse osmosis technologyTesting methods for hollow fiber RO module This standard specifies the test conditions and test methods for hollow fiber reverse osmosis modules HY/T054.2--2001
This standard is applicable to the testing of hollow fiber reverse osmosis modules with tap water, brackish water and seawater as feed water. It can also be used for the separation test of other aqueous solutions that are not harmful to hollow fiber reverse osmosis membranes. This standard can be used as a reference for the testing of roll-type reverse osmosis modules. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard by being referenced in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T11896—1989 Determination of chloride in water Silver nitrate titration method HY/T049—1999 Test method for hollow fiber reverse osmosis membrane 3 Definitions
This standard adopts the terms specified in HY/T049 and the following definitions. Recovery rate recovery
The ratio of the produced water flow rate to the inlet water flow rate, expressed as a percentage. 4. Test method and apparatus
4.1 Test method
4.1.1 Determine the desalination rate of the membrane assembly by testing the conductivity or chloride mass concentration of the produced water and the inlet water under specified conditions. 4.1.2 Determine the water production volume by using a produced water flow meter. 4.2 Reagents
Sodium chloride: chemically pure;
Distilled water or deionized water: its conductivity is less than 10uS/cm. 4.3 Test device
4.3.1 The hollow fiber reverse osmosis module test device is assembled from the following equipment according to Figure A1 in Appendix A, mainly including: a circulating water tank;
a pressure regulating valve;
a booster pump;
a pressure gauge with an accuracy of ±1.5%;
a precision filter;
Approved by the State Oceanic Administration on July 27, 2001
Implementation on January 1, 2002
a high-pressure pump;
a buffer;
a sampling valve;
a hollow fiber reverse osmosis module;
a flow meter with an accuracy of ±2.5%;
a connecting pipe.
HY/T054.2—2001
4.3.2 Parts in contact with the test liquid, such as water tanks, water pumps, pipes, valves, etc., should be made of stainless steel or non-toxic plastics resistant to corrosion by the flowing medium. Ordinary carbon steel, cast iron or galvanized materials shall not be used. 4.3.3 The allowable working pressure of the pressure-bearing parts shall be greater than the test pressure of the hollow fiber reverse osmosis assembly. 4.3.4 After assembly, the test equipment shall be cleaned with cleaning fluid and tap water. The test system shall not contain oil and other impurities that may damage or contaminate the membrane.
4.4 Test instruments
Conductivity meter, with temperature compensation function, accuracy of ±1.0% (FS); thermometer, 0℃～50℃, accuracy of ±0.2℃; beaker.
5 Test conditions
5.1 Influent
The influent of the tap water membrane module is 500mg/L NaCl solution; the influent of the brackish water membrane module is 5000mg/L NaCl solution; the influent of the seawater membrane module is 30000mg/L NaCl solution. 5.2 Test pressure
The test pressure of the tap water membrane module is 1.5MPa; the test pressure of the brackish water membrane module is 3.0MPa; the test pressure of the seawater membrane module is 5.5MPa. 5.3 Influent temperature
The influent temperature is 5℃～35℃.
5.4 Recovery rate
The recovery rate of the tap water membrane module is (60±2)%; the recovery rate of the brackish water membrane module is (60±2)%; the recovery rate of the seawater membrane module is (30±2)%. 5.5 Pre-pressurization time
Run for 1 hour under the test conditions specified in 5.2 and 5.4. 6. Test steps
6.1 Preparation before test
6.1.1 Prepare the inlet water into the NaCl solution specified in 5.1 according to the reagents specified in 4.2. 6.1.2 Connect the hollow fiber reverse osmosis module to be tested with the test device. 6.1.3 Set the concentrated water regulating valve to the fully open state. 6.1.4 Start the booster pump and the high-pressure pump in turn, and make the system run at low pressure (0.1MPa~0.3MPa) for 5 minutes to exhaust the gas in the module.
6.1.5. Make the test system reach the requirements of 5.2 and 5.4 through the pressure regulating valve. 6.1.6 Pre-pressurize for 1 hour according to the requirements of 5.5.
6.2 Measurement of inlet water temperature
HY/T 054.2--2001
After draining some of the accumulated water at the inlet sampling port, collect water samples with a beaker and measure the inlet water temperature. 6.3 Determination of desalination rate
6.3.1 Conductivity method
6.3.1.1 After draining some of the accumulated water at the inlet and production water sampling ports, wash the beaker three times with the solution to be tested and collect water samples. 6.3.1.2 According to the instructions for use of the conductivity meter, select the electrode and measurement conditions, and adjust the conductivity meter. After washing the electrode three times with the solution to be tested, insert it into the beaker containing the solution to be tested, select the corresponding range, and read the reading on the meter. 6.3.1.3 When testing brackish water membrane modules and seawater membrane modules, the inlet water sample should be diluted to less than 1000 mg/L for measurement, and the reading on the meter should be multiplied by the dilution factor.
6.3.2 Chemical analysis method
The mass concentration of NaCl solution in influent and produced water shall be determined in accordance with the provisions of GB/T11896. 6.4 Determination of produced water
According to the reading of produced water flow meter.
6.5 Determination of concentrated water
According to the reading of concentrated water flow meter.
6.6 Test interval
6.6.1 Repeat the tests of 6.2, 6.3, 6.4 and 6.5 every 15 minutes until the relative error of the three test values ​​of produced water and conductivity is less than 5% (the produced water is corrected to 25℃).
6.6.2 If the actual parameters of 5.2 or 5.4 need to be adjusted during the test, the test shall be repeated in accordance with the provisions of 6.6.1. 1 hour after the adjustment.
6.6.36.2 and 6.4 shall be measured simultaneously, and the interval time shall be less than 5s. 6.7 Protection of the tested components
6.7.1 After the test is completed, fully open the concentrated water regulating valve to reduce the pressure of the high-pressure pump to 0.1MPa~0.3MPa, and flush the components for no less than 10 minutes. The seawater membrane components are flushed with the produced water of the components. 6.7.2 Protect the hollow fiber reverse osmosis components according to the requirements provided in the product manual. 7 Calculation
7.1 Calculation of desalination rate
Where: R—desalination rate,%;
_ Cr=C × 100%
Conductivity of inlet water (25℃), uS/cm; or mass concentration of chloride, mg/L;
Conductivity of produced water (25℃), μS/cm; or mass concentration of chloride, mg/L. bzxZ.net
Note: When there is a dispute between the two test methods, the method of measuring the mass concentration of chloride shall be used as the arbitration method. 7.2 Calculation of water production
7.2.1 The water production is based on the test value at 25℃ as a reference value. 7.2.2 The water production is calculated according to formula (2):
Wherein: q
The water production of the hollow fiber reverse osmosis module at a water temperature of 25℃ is m/d; The water production flow rate of the hollow fiber reverse osmosis module at the test water temperature is m\/h; (1)
(2)
-Water production temperature correction factor.
HY/T054.2--2001
Note: The correction factor for the produced water temperature shall be in accordance with the product manual, or refer to Table B17.3 in Appendix B of HY/T049--1999. Calculation of recovery rate
Where: Y-recovery rate, %;
Y= (qvp/qut)× 100% =[qp/(qp+ qur)］×100%-produced water flow, m/h;
water flow, m2/h;
concentrated water flow, m/h.
Test results
The arithmetic mean of the three test data that meet the requirements of 6.6 is the test result. 'Test Report
The test report shall include the following contents:
a) Model, specification, serial number, production date and manufacturer of hollow fiber reverse osmosis module;
b) Room temperature and weather conditions during the test:
c) Data of each test, including:
1) Pre-pressurization time;
2) Test time;
3) Inlet water pressure;
4) Brine pressure;
5) Brine flow rate;
6) Product water flow rate;
7) Inlet water temperature;
8) Inlet water conductivity, or inlet water chloride mass concentration;
9) Product water conductivity, or product water chloride mass concentration;
10) Brine conductivity, or concentrate chloride mass concentration;
11) Recovery rate;
12) Product water volume corrected to 25℃;
13) Desalination rate.
d) test result;
e) test date;
f) tester.
(3)
HY/T 054.22001
Appendix A
(Standard Appendix)
Flow chart of hollow fiber reverse osmosis module test device 1 Circulating water tank; 2-precision filter; 3-flow meter; 4-flow meter; 5-pressure regulating valve; 6-pressure gauge; 7 hollow fiber reverse osmosis module; 8-pressure gauge; 9---buffer; 10-pressure regulating valve; 11-water inlet sampling valve; 12-high pressure pump; 13-pressure gauge; 14-pressure gauge 15-boosting pump; 16-shutoff valve; 17-concentrated water sampling valve; 18-product water sampling valve Note: Pressure gauges 6 and 8 should be installed as close to the membrane module as possible. Figure A1 Flowchart of Hollow Fiber Reverse Osmosis Module Test Device HY/T_054.2-2001
Marine
Industry Standard of the People's Republic of China
Hollow Fiber Reverse Osmosis Technology
Test Method of Hollow Fiber Reverse Osmosis Module
HY/T054.2—2001
Published by China Standards Press
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