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Summary of Contents for Toray TMR140 Series
- Page 1 Submerged Membrane Module for MBR TORAY “MEMBRAY” “TMR140 Series” Instruction Manual Toray Industries, Inc. Water Treatment Division 8-1, Mihama 1-chome, Urayasu, Chiba 279-8555 Japan Tel: +81-47-350-6223 Fax: +81-47-350-6066 URL: http:// www.toray.com Published: February 2008 AIRE-064-1-4...
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Page 2: Table Of Contents
MEMBRANEFILTRATION PROCESS DESIGN FOR “TMR140 SERIES”........12 Standard Time Chart........................12 Flow Diagram of Membrane Filtration..................12 Layout of “TMR140 Series” Modules in Membrane Submerged Tank ........17 Piping ............................20 V. Installation of “TMR140 Series” ......................22 Preparatory Procedure....................... 22 Unloading Products........................ - Page 3 Symbols used in this manual This symbol is used to indicate an imminent hazardous situation DANGER which, if not avoided, will result in serious injury or death. This symbol is used to indicate a potentially hazardous situation WARNING which, if not avoided, can result in serious injury or death. This symbol is used to indicate a potentially hazardous situation CAUTION which, if not avoided, may result in injury or property damage.
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Page 4: Introduction
(MBR) that has been developed based on the polymer science and the membrane fabrication technologies accumulated for a long time in Toray Industries, Inc. "TMR140 Series" is a standard model of "MEMBRAY". This manual explains MBR's features and describes the specifications of "TMR140 Series" and its safe operations including installation, operation, maintenance procedures and peripheral equipments. -
Page 5: Outline Of "Tmr140 Series
Outline of “TMR140 Series” TMR140 Series” is the membrane module composed of the element block and the aeration block. The element block contains a number of membrane elements stacked at equal clearance, each of which has flat sheet membranes attached on both sides of ABS panel. - Page 6 (1) Shape of Element The membrane element is a flat sheet type as shown in Fig.I-4. At the normal filtration operation, the sludge accumulated on the membrane surface is cleaned up effectively with upward water stream generated with the scouring air supplied from the air diffusers installed at the bottom side (Fig.I-5).
- Page 7 (see Fig.I-6 and Fig.I-7) compared to other membranes. The average pore size is 0.08 micron meter. 3.0 micron 3.0 micron Toray PVDF Membrane Other Membrane Fig. I-6 Membrane Surface (photo) PVDF...
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Page 8: For Safe Operation Of "Tmr140 Series
FOR SAFE OPERATION OF “TMR140 Series” Before using “TMR140 Series”, please thoroughly read this Instruction Manual and follow the instructions described in this manual, especially the safety precautions shown below. The details of each precaution are described in the relevant chapter Unpacking and Installation When lifting “TMR140 Series”... -
Page 9: Operation And Maintenance
Operation and Maintenance WARNING Don't use permeated water for drinking. Before discharging the treated water to the environment or reusing it, make sure to analyze its quality and confirm that the water WARNING quality meets the intended purpose. Don't burn the membranes without appropriate facilities since harmful Hydrogen fluoride (HF) gas is generated at burning. -
Page 10: Chemical Cleaning Of Element
Prevent “TMR140 Series” from freezing at any time. CAUTION Please take care not to dry the membranes when taking "TMR140 CAUTION Series" out of the liquid for the inspection or the maintenance. If the wet membrane is dried up again, the permeability of the membrane might be decreased seriously. - Page 11 When injecting the chemical agents at the chemical cleaning, WARNING please confirm beforehand that the modules are completely submerged in the liquid and the liquid level of the membrane submerged tank is higher by more than 500 mm than the top of the module.
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Page 12: Specifications And Performance Of "Tmr140 Series
III. SPECIFICATIONS AND PERFORMANCE OF “TMR140 SERIES” Specifications of Element TableIII-1 and Fig.III-1 shows the specifications and the appearance of the element for TMR140 Series, respectively. Table III-1 Specifications of Element (TSP-50150) Model name TSP-50150 Membrane configuration Flat sheet Application... -
Page 13: Specifications And Performance Of "Tmr140 Series" Module
Specifications and Performance of “TMR140 Series” Module Table III-3 shows the specifications of “TMR140 Series” modules. Table III-3 Specifications of Module Model name TMR140-050S TMR140-100S TMR140-200W TMR140-200D Number of membrane elements Element block structure Double Deck 1 EBL 1 EBL... - Page 14 Table III-4 shows the performance of ”TMR140 Series” modules. Table III-4 “TMR140 Series” Module Performance Model name TMR140-050S TMR140-100S TMR140-200W TMR140-200D Permeate TSS (mg/L) Not higher than 3.0 water Turbidity (NTU) Not higher than 1.0 quality ＜Reference＞ Filtration capacity Quantity of water treated This value can be attained when operated under the standard operating conditions as specified in this Instruction Manual during a period specified separately by Toray.
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Page 15: Membranefiltration Process Design For "Tmr140 Series
These would help you design the membrane filtration process with “TMR140 Series”. Standard Time Chart Two kinds of the filtration patterns are available with "TMR140 Series". One is the simple continuous filtration. And the other is the filtration with relaxation, that is the intermittent filtration. - Page 16 of this section. (1) Filtration with natural water head The filtration can be performed with using a natural water head differential pressure generated from a vertical distance between the liquid level of the membrane submerged tank and the level of the permeate water outlet (see Fig. IV-2). In order to obtain enough suction pressure for the filtration, the permeate water outlet should be located enough below the liquid level of the membrane submerged tank (normally located at the same level as the bottom of the element block).
- Page 17 line to stop raw water coming. It is recommended to install enough capacity of the buffer tank (the equalization tank) before the membrane submerged tank to equalize the raw water flow and enable stable operation. In this natural water head filtration, the air accumulated in the permeate water line should be discharged once a day at least, otherwise the effective water head is reduced seriously.
- Page 18 Air supply unit (such as a blower) This unit supplies air to the air diffusers of "TMR140 Series" module. The air flow rate supplied to the module should be within the range of "Scouring Air Flow Rate"...
- Page 19 flow meter for one train of the modules. Suction pump A suction pump is required in the case of the filtration with suction pump. It is advised to use a self-priming suction pump having the necessary pumping head. g. Level switch Level switch is required to be installed in the membrane submerged tank to control the liquid level.
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Page 20: Layout Of "Tmr140 Series" Modules In Membrane Submerged Tank
3. Layout of “TMR140 Series” Modules in Membrane Submerged Tank (1) Layout of Modules in Membrane Submerged Tank Fig.IV-4 shows how the liquid circulates in the membrane submerged tank. An upward flow is generated as the air is supplied from the lower side of the membrane modules. The flow then goes downward along both sides of the element block. - Page 21 W1 : 380 to 680 mm (ii) W2 : 430 to 730 mm (iii) W3 : W3 should be as short as possible (normally about 400 mm) within the range allowing piping and maintenance work. (iv) L1 : L1, the distance between the top of the element and the liquid level of the tank, should be 500 mm or over at any time of the operation.
- Page 22 Tank wall Module Module Module 2 X W2 Oxygen Supplying Aeration Equipment Fig.IV-7 Membrane Module Layout in Membrane Submerged Tank with other aeration equipment (top view) Please keep twice of W1 of the distance between the modules and other aeration equipment in the case shown in Fig.IV-8, Tank wall 2 ×...
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Page 23: Piping
Piping The procedures of the pipe arrangement for the air diffusers and the permeate water manifold are described in this section. The connections of the air diffuser and the permeate water manifold are shown in the module drawings attached to this manual. (1) Pipe Arrangement for the air diffusers The pipe from the air supply device (the blower) is connected to the air diffusers with the flange (A). - Page 24 (2) Piping to the manifold Fig.IV-10 and Fig.IV-11 give two examples of leading permeated water from the Membrane Submerged Tank. Fig.IV-10 shows downward piping and Fig.IV-11 shows upward piping. The downward piping is for the operation with natural water head. The upward piping is for the operation with suction pump in the case that the pump is located above the Membrane Submerged Tank.
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Page 25: Installation Of "Tmr140 Series
The element block contains a fixed number of membrane elements installed in it. (2) When lifting "TMR140 Series" (or lifting the element block or the aeration block separately), please set a hook on all hang holes and lift it keeping it horizontal. -
Page 26: Storage Products
Storage Products Please store "TMR140 Series" indoors under lower than 40 degree C of the temperature, keep it horizontal and avoid direct sunlight to prevent the membrane from deterioration. Throughout the entire process of installation work from transportation to operation startup, please take adequate measures to protect the elements and other components from damage. - Page 27 Please check the tie-in with the assembly drawings attached at the end of this manual. And please contact us beforehand if you want to install the module in the tank without using anchors (e.g., using guide rails instead). (1) Installation Modules (on the bottom of the membrane submerged tank using anchors) Please first install the aeration blocks in the membrane submerged tank using anchors.
- Page 28 Please connect one end of each upper and lower manifold to each upper and lower permeated water line. Please leave the other end closed with a blank flange. When lifting “TMR140 Series”, please attach chains or slings to it DANGER and lift it straight upward calmly to prevent “TMR140 Series”...
- Page 29 DANGER Use chains or slings compatible with lifting weight. Never climb the module. DANGER Please set up the foothold when installation. Use protective equipments to ensure the safety. CAUTION Don't apply pressure to the permeate side. AIRE-064-1-4...
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Page 30: Start Of Operation
VI. Start of Operation Clean Water Operation (1) Checks and Arrangements At first, please make the following inspections and arrangements: Check that the air diffusion pipe and the permeated water pipes are connected properly. Check that the element block is secured on the aeration block. Check that the membrane submerged tank has been cleaned up completely and then remove the protective cover. -
Page 31: Seeding Sludge Injection
supply. Check the control devices work well during the clean water operation, Start filtration with clean water. Measure and record the trans-membrane pressure and water temperature at designed filtration rates (at a normal, maximum and minimum flow rate). Maintain such records. Stop the filtration and the air supply as soon as the above tests finish. -
Page 32: Operation Control
VII. Operation Control Standard Operating Conditions Table VII-1 shows standard operating conditions for “TMR140 Series". These operating parameters such as MLSS, sludge viscosity, DO (dissolved oxygen concentration) and pH should be kept in the range of the standard operation conditions given in Table VII-1 in order to ensure stable operation. - Page 33 ABS supporting panel may get chemical cracks by some organic solvent, such as alcohols and oils, and some synthetic detergents. CAUTION So don't make ABS panel contact such materials. Avoid abrupt changes in pH, temperature, trans-membrane CAUTION pressure or any other conditions even if they are within the standard operating conditions (Table VII-1).
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Page 34: Operating Parameters
Operating Parameters The performance of “TMR140 Series” varies in accordance with the raw water quality and the operating conditions. It is recommended to monitor and record the values of operating parameters in order to achieve the stable operation and the expected performance with “TMR140 Series”. -
Page 35: Daily Inspection
Daily Inspection There are three key items for the stable operation without troubles, those are the trans-membrane pressure, the diffused air conditions and the biological treatment situation. For the control parameters listed in the preceding section, perform inspection as follows: (1) Trans-membrane pressure Please check that the trans-membrane pressure is stable. - Page 36 is too high, please replace the sludge or transfer the sludge to the sludge storage tank until an appropriate viscosity value is attained. (6) DO It is desirable that DO value is 1.0 mg/L or more at any point in the membrane submerged tank.
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Page 37: Maintenance Of "Tmr140 Series
VIII. Maintenance of “TMR140 Series” Maintenance Items and Maintenance Frequency Please perform strictly the following items to maintain “TMR140 Series" in good condition. Clean the air diffusers (everyday) Chemical cleaning of the element (every 6 months or when the trans-membrane pressure has risen by 5 kPa or more from its initial operating level at the same permeated water flow rate, whichever comes first). -
Page 38: Air Diffuser Cleaning
Air Diffuser Cleaning The clogging of diffuser holes causes uneven air diffusion and membrane clogging, and the elements are broken in the worst case. Please clean the air diffusers at least once a day to prevent such trouble. (it is recommended to install the automatic air diffuser cleaning system with automatic valves). -
Page 39: Chemical Cleaning Of Element
3. Chemical Cleaning of Element Chemical cleaning of element should be conducted when the trans-membrane pressure rises to excess. Such a pressure increase can be caused when contaminants clog the pores of the membrane surface. The timing of chemical cleaning is determined as follows: Every 6 months or when the trans-membrane pressure rises by 5 kPa from its initial operating level at the same permeated water flow rate, whichever comes first. -
Page 40: Handling Of Chemical Agents
Handling of Chemical Agents The chemical agents used for chemical cleaning are harmful to the health when in contact with the skin. When handling chemicals, wear protective goggles, protective gloves and other protectors. Make sure to check the details of its material safety data sheet (MSDS) and the instructions given below beforehand. - Page 41 (e) Thoroughly wash your hands and face and rinse out your mouth after using chemicals. Don't eat or drink anything in the working place except in a designated place. (g) Don't bring gloves or other contaminated protectors into the rest area. (h) Forbid unauthorized entry to the place where chemicals are handled.
- Page 42 The chemical agents used for chemical cleaning are harmful to the health. When handling chemicals, wear protective goggles, WARNING protective gloves and other protectors. Make sure to check the details of its material safety data sheet (MSDS) beforehand. If chemicals should stick to your skin or clothes, immediately wash WARNING it away with a large amount of running water.
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Page 43: Chemical Cleaning Procedure
Chemical Cleaning Procedure (1) Element Chemical Cleaning Procedure Firstly please slowly inject the chemical via the permeated water nozzle into the elements until it percolates through the membranes. Please use a natural water head to inject the chemical, as shown below. Chemical Cleaning with the chemical tank located at the bottom (Fig.VIII-1) Confirm that the chemical injection valve is closed and that the chemical feed pump is stopped. - Page 44 Chemical cleaning with the chemical tank located above the membrane submerged tank (Fig.VIII-2) Confirm that the chemical injection valve is closed. (ii) Provide the chemical tank with specified amounts of the chemical. (iii) Stop filtration, stop aeration, and close the filtrate valve. (iv) Slowly open the chemical injection valve to inject chemicals.
- Page 45 (2) Precautions for Element Chemical Cleaning Inject chemical by gravity. Keep the gravity pressure below 10kPa. Avoid forcibly applying pressure directly with the pump. A higher pressure will damage elements. Submerge the module completely in the tank and inject chemical. Please maintain the top of the module at least 500 mm below the liquid surface for the safety reason.
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Page 46: Lifting Procedure
Lifting Procedure Please take the following steps to lift “TMR140 Series” modules for maintenance, in the case that the modules are installed on the bottom of the tank with using anchors. Discharge completely activated sludge liquid from the tank. (2) In the case of lifting only the element block, please disconnect the manifold from the permeate water line and disjoint the bolts jointing the element block with the aeration block. -
Page 47: Replacement Parts List
Replacement Parts List Please contact us for the details of the specifications.. Name Frequency Type No. Permeate Tube Every 3 years or when EBL-TUBE-050 EBL-TUBE-100 deterioration detected, (50 sets/100 sets) whichever comes first GASKET140-050M element TMR140- Middle fixing 050S Every 3 years or when Side GASKET140-050S gasket... -
Page 48: Iix. Troubleshooting
Troubleshooting Most of troubles in the operation of “TMR140 Series” are related to abnormal air diffusion, increased trans-membrane pressure, decreased permeated water flow rate and bad permeated water quality. The following table shows such troubles and corrective actions against them:... - Page 49 This Instruction Manual does not intend to guarantee the results of application of the information provided herein or the safety and the compatibility of this product. Before using this product, the user is asked to check for its safety and compatibility with the intended purpose.
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