Toray HFUG Series Instruction Manual
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Toray HFUG Series Instruction Manual

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Toray UF
Instruction
Instruction
Manual
Manual
"HFUG Series"
[HFUG-B2315AN (type AN)]
Last updated September 2022
06-G-MB2-HFUG-B2315AN-220930

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Summary of Contents for Toray HFUG Series

  • Page 1 Toray UF Instruction Instruction Manual Manual “HFUG Series” [HFUG-B2315AN (type AN)] Last updated September 2022 06-G-MB2-HFUG-B2315AN-220930...
  • Page 2 Toray shall not be responsible or liable for any losses or damage incurred due to the use of the information in this document. The information in this document is subject to change without prior notice, and Toray reserves the right to suspend or discontinue the publication of this document.
  • Page 3 Toray UF Contact Information Toray Industries, Inc. — UF & MBR Membrane Products Department (Global Headquarters) Nihonbashi Mitsui Tower, 1-1, Nihonbashi-Muromachi 2 chome, Chuo-ku, Tokyo, 103-8666 Japan Tel: +81-3-3245-4542 Fax: +81-3-3245-4913 Toray Membrane USA, Inc. (TMUS) 13435 Danielson Street, Poway, California 92064 USA...

  • Page 4: Table Of Contents

    TORAY UF TABLE OF CONTENTS Introduction ........................1 Characteristics of Toray "HFUG series" Membrane Module ......... 1 Applications of Toray "HFUG series" Membrane Module ..........2 For Your Safety ......................3 Safety Instruction for Unpacking and Installation ............4 Safety Instruction for Filtration Operation ..............6 Safety Instruction for Chemical Cleaning ..............

  • Page 5: Introduction

    RO pretreatment in desalination. (3) High Mechanical Strength The membrane of HFUG series has very high mechanical strength because it is made of PVDF with the special spinning method developed by Toray. HFUG series provides high integrity and durability under recommended operating conditions.

  • Page 6: Applications Of Toray "Hfug Series" Membrane Module

    TORAY UF 2. Applications of Toray "HFUG series" Membrane Module Drinking Water Production  Tertiary Treatment  RO Pretreatment  Industrial Water Production  Reuse of Industrial Wastewater  Instruction Manual 06-G-MB2-HFUG-B2315AN-220930 2 of 35...

  • Page 7: For Your Safety

    TORAY UF II. For Your Safety Please be sure to read and follow the instructions below before using HFUG series. This  manual should be retained for future reference. Follow the safety precautions as they are intended to protect operators and equipment ...

  • Page 8: Safety Instruction For Unpacking And Installation

    TORAY UF 1. Safety Instruction for Unpacking and Installation Be sure to wear safety gears such as rubber gloves and safety glasses for unpacking. The membrane is packaged in sodium hypochlorite solution (Max. 200 mg/L as Cl ). If the solution happens to splash onto the skin, wash the affected part Instruction with running water.
  • Page 9 TORAY UF Housing type joints and screw are applied to connect the modules to the piping. Follow the instruction of the connection provided by the supplier at the connection Instruction point. Wrong connections may damage the modules. When connecting and unconnecting the modules to the piping, be sure to secure a sufficient working space, and take care not to catch and hurt fingers.

  • Page 10: Safety Instruction For Filtration Operation

    TORAY UF 2. Safety Instruction for Filtration Operation Flush all the piping out with clean water and make sure no debris is remaining in the piping prior to connecting the modules. Instruction Confirm that the preservative chemical in the modules is completely drained out before starting the filtration operation.
  • Page 11 TORAY UF Do not exceed the maximum applicable pressure of 300 kPa (43.5 psi). Higher pressures can damage the modules. Do not exceed the maximum temperature of 40 deg C (104 deg F). The higher temperature damages the modules. Prohibited Do not freeze the membrane modules.

  • Page 12: Safety Instruction For Chemical Cleaning

    TORAY UF 3. Safety Instruction for Chemical Cleaning Take special precautions when handling chemicals during chemical cleaning. Wear the safety gears such as safety glasses and protective gloves. If chemicals come in direct contact with your skin or clothes, treat the contacted part appropriately based Instruction on the SDS.

  • Page 13: Safety Instruction For Disposal

    TORAY UF 4. Safety Instruction for Disposal Apply a service of a qualified waste disposing company when disposing of the modules. Use the appropriate facilities in which hydrogen fluoride (HF) gas can be neutralized when the module is to be incinerated. HF gas is generated with the Instruction incineration of membrane.

  • Page 14: Warranty Claims

    UF modules that are damaged due to improper loading, shipping, handling, or storing shall not be covered by Toray Industries, Inc.’s warranty. Therefore, it is very important that the customer firmly follows instructions of loading, shipping, handling, and storing of the UF modules mentioned in this Instruction Manual.

  • Page 15: Warranty Policy

    Toray Industries, Inc. with the information about operation mode, recording performance data of UF systems. Kindly please contact Toray Industries, Inc. if the customer wishes to deviate from any of the procedures or specifications mentioned in this Instruction Manual and request written approval in advance.

  • Page 16: Specifications Of Toray "Hfug Series" Membrane Module

    TORAY UF III. Specifications of Toray “HFUG Series” Membrane Module Table 1. Specifications of membrane * Membrane Material PVDF (Polyvinylidene fluoride) Nominal Pore Size * 0.01 micrometers Maximum * 300 kPa (43.5 psi) Trans-Membrane Pressure Normal Operation Lower than 200 kPa (29.0 psi) Storage and Operating 1 –...
  • Page 17 TORAY UF Table 3. Cleaning limits * Cleaning pH Range 0 – 12 1– 40 deg C Cleaning Temperature Range (34 – 104 deg F) Maximum Concentration of NaClO as Cl 3,000 mg/L (10 < pH < 12) Maximum NaClO Exposure...
  • Page 18 TORAY UF Handle and operate the modules within the ranges and  the limits indicated in Table 1 to 4. Operation out of these ranges or limits may damage the modules and affect filtration performance. Instruction Manual 06-G-MB2-HFUG-B2315AN-220930 14 of 35...

  • Page 19: Configuration Of Toray "Hfug Series" Membrane Module

    TORAY UF IV. Configuration of Toray “HFUG Series” Membrane Module (1): Filtrate Outlet / Inlet of Backwash Water (2): Air Outlet / Backwash Water Outlet (3): Feed Water Inlet / Air Inlet / Drain Outlet Connections Pipe fitting outer diameter...
  • Page 20 TORAY UF Depending on customer demands, HFUG Series provides several connection options. TYPE B or C can be used depending on how the top or bottom is connected. Please contact Toray for more information. Table 5. Referential drawings for HFUG-B2315AN (TYPE A, B and C)

  • Page 21: Installation

    TORAY UF V. Installation The standard procedure to install membrane modules is described below. Unpack membrane module(s) from a wooden box or corrugated box. Be sure to wear protective gloves to avoid injury of  hands by packing box of the modules.
  • Page 22 TORAY UF Fig. 2. Typical example of the membrane module installation Do not drop the module.  Use equipment such as chain blocks, a crane, or a  forklift truck when handling the module. The module is too heavy to handle by hand.
  • Page 23 TORAY UF Keep the connection surface free of any dirt or oils.  Follow the instruction below when storing the modules.  A wrong use may cause the damage to the module. Air inject should be located just beneath the bottom nozzle of the module to inlet air completely to the module.

  • Page 24: Operation

    TORAY UF VI. Operation 1. Filtration (1) Check that all pipes are connected appropriately and flushed out prior to the operation. Fig. 4 shows a typical example of membrane pipe connection. Fig. 4. Typical example of membrane pipe connection (2) Make sure the feed water valve (V-1), the drainage valve (V-3), and the valve for the air- scrubbing air (V-2) are “closed”.
  • Page 25 TORAY UF (5) Confirm that the air is out of the module, and then close the air exhaust valve (V-4). (6) Set appropriate volume of filtrate flow. Do not exceed 300 kPa (43.5 psi) to avoid damage to  the module.

  • Page 26: Backwash And Air-Scrubbing

    TORAY UF 2. Backwash and Air-scrubbing The physical cleaning with backwash followed by air-scrubbing should be carried out periodically and automatically for the continuous filtration. The frequency of the physical cleaning mainly depends on the raw water quality (Typical frequency is once every 30 minutes for the surface water filtration.
  • Page 27 In that case, check the integrity of the element with PDT (Pressure Decay Test) or DAF (Diffusive Air Flow) Test. The test procedure is provided as the technical information by Toray. Instruction Manual 06-G-MB2-HFUG-B2315AN-220930 23 of 35...

  • Page 28: Toray Maintenance Cleaning

    This process is called Toray Maintenance Cleaning (TMC). The TMC is usually held following the backwash and air-scrubbing which does not contain the chemical dosing. The frequency and soaking time of the TMC mainly depends on the raw water quality (Normally once a day for 20 minutes.
  • Page 29 TORAY UF TMC. The flow rate of backwash water is set up in advance for 1.0 to 1.5 times the filtrate flow rate. Do not exceed Max. Backwash Flow described in Table 4. (3) As soon as the NaClO is detected in the drainage water, close the drainage valve (V-3).
  • Page 30 In that case, check the integrity of the element with PDT (Pressure Decay Test) or DAF (Diffusive Air Flow) Test. The test procedure is provided as the technical information by Toray. Instruction Manual 06-G-MB2-HFUG-B2315AN-220930 26 of 35...

  • Page 31: Basic Trans-Membrane Pressure Calculation

    TORAY UF 4. Basic Trans-Membrane Pressure Calculation To calculate accurate Trans-Membrane Pressure (TMP), it is necessary to involve the height difference of inlet and outlet pressure gauges (see Fig. 7). Example calculation of TMP TMP = (P ) - (P...

  • Page 32: Temperature Correction Factor

    TORAY UF 5. Temperature Correction Factor The permeability of the membrane is influenced by temperature mainly because the water viscosity changes with temperature. It is necessary to eliminate the temperature effect with the temperature correction factor (TCF) shown in Fig. 8 to evaluate the permeability correctly.

  • Page 33: Performance Recording

    TORAY UF 6. Performance Recording To effectively evaluate the current UF system performance, including quick recognition of undesirable trends in operation and appropriate countermeasures, it is necessary to compare current operating performance data with a performance data which were recorded at the first placed in service.

  • Page 34: Chemical Cleaning

    TORAY UF VII. Chemical Cleaning The chemical cleaning should be carried out to remove foulants accumulated in the membrane pores or sticking to the membrane surface. Carry out the chemical cleaning before the trans-  membrane pressure rises to 200 kPa (29.0 psi), or the module filtration performance could be reduced significantly.
  • Page 35 TORAY UF Fig. 9. Flow diagram for chemical cleaning (1) The flow diagram for cleaning simultaneously both outer surface and inside of hollow fiber membranes is shown in Fig. 9. The flow diagram can be changed case by case. Please contact us for further information if necessary.
  • Page 36 TORAY UF Take appropriate measures to prevent the mis-operation  or accidents that could cause the chemicals to get into the product water. Check the piping and correctly position of each valve before starting the chemical cleaning. (7) The standard conditions for chemical cleaning are shown in Table 6.
  • Page 37 TORAY UF In the case of cleaning with acid and with sodium  hypochlorite alternately, rinse the cleaning line and the module with clean water thoroughly after each cleaning. Use product water for rinsing and make sure that pH of the water in the module is in the range between pH 6.5...

  • Page 38: Storage Of Membrane Module

    TORAY UF VIII. Storage of Membrane Module Follow the instruction below when you store the modules. Be careful not to freeze the modules.  1. Storage of New Membrane Module Keep the modules in the original packing in a dark and cool place (1 to 40 deg C). Avoid direct sunlight and moisture.

  • Page 39: Replace Preservative Chemical

    TORAY UF (2) Long-term storage First, carry out a chemical cleaning with sodium hypochlorite. Fill the module with the chemical described in Table 8. Use filtrate quality water. Follow the instructions shown in Table 8. Keep the modules sealed with the aqueous chemical solution shown in Table 7 or Table 8.
  • Page 40 RO, NF, UF, MBR, and antiscalant products to solve water and process treatment challenges. Contact us today to find out how Toray can help maximize water recovery, achieve high water quality for water reuse, lower energy requirements, and minimize life cycle costs.

This manual is also suitable for:

Hfug-b2315an

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