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TORAY MBR

Instruction Manual

06-G-MB2-NHPAF-220801

27 of 63

Fig.IV-10 Downward Piping from Membrane Tank

Fig.IV-11 Upward Piping from Membrane Tank

Filtrate Water Outlet

Filtrate Water Valve

Chemical Feed Line

Air Discharge Valve

Chemical

Injection Valve

Air Discharge Valve

Chemical Feed Line

Filtrate Water Valve

Chemical Injection Valve

Suction Pump

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Содержание 050-1F

Страница 1: ...Instruction Manual Instruction Manual NHPA Series F type 050 1F 100 1F 150 1F 2F 3F and 4F Toray MBR Last updated August 2022 06 G MB2 NHPAF 220801...

Страница 2: ...t transferring this document to any other websites or printed media The material contained in this document may not be used without permission from the copyright holder for any other purpose that exce...

Страница 3: ...42 Switzerland Tel 41 61 415 8710 Fax 41 61 415 8720 E mail info tmeu mb mail toray Toray Asia Pte Ltd TAS 111 Somerset Road 14 22 14 27 Singapore 238164 Republic of Singapore Tel 65 6226 0525 Fax 65...

Страница 4: ...e Chart 15 2 Flow Diagram of Membrane Filtration 16 3 Layout of NHPA Series Modules in Membrane Tank 21 4 Piping 24 V INSTALLATION OF NHPA SERIES 29 1 Preparatory Procedure 29 2 Unloading Lifting Prod...

Страница 5: ...hazardous situation which if not avoided will result in serious injury or death This symbol is used to indicate a potentially hazardous situation which if not avoided can result in serious injury or d...

Страница 6: ...t Operators should thoroughly read this manual to ensure stable operation 1 Features of MBR The process flow of the conventional activated sludge system CAS and MBR are shown in Fig I 1 and Fig I 2 re...

Страница 7: ...sheets are arranged at a constant clearance Each element is connected via plastic tube to the filtrate water manifold For this F model the aeration block consists of fine bubble air diffusers to suppl...

Страница 8: ...ig I 5 This mechanism ensures the stable filtration since the membrane does not easily admit of sludge adherence to its surface In addition thin membrane element which consists of two membrane sheets...

Страница 9: ...ize Numerous small size pores are distributed evenly over the membrane surface with a sharp pore size distribution This structure gives an outstanding high treated water quality and excellent water pe...

Страница 10: ...cks and lower element blocks at once as one unit when lifting NHPA150 3F or 4F Lift the upper and lower element block separately Make provisions in advance to access the upper portions of the membrane...

Страница 11: ...ge of the filtrate water manifold Consider piping materials and regulate the load to the flange connection points at less than 20 kg per flange in order to avoid distortion leakage or breakage of the...

Страница 12: ...es longer than necessary to purge the system of entrained air when using clean water in the MBR tank Prolonged clean water operation can clog the membrane pores Keep the membranes wet once they get we...

Страница 13: ...d to just the amount required to maintain sludge viability Once a filtrate tube has been removed or disconnected from either the element nozzle or filtrate manifold it should be replaced with a Toray...

Страница 14: ...emicals at a pressure less than 10 kPa 100 mbar Before starting injecting chemical to elements confirm that the membrane tank liquid level is more than 500 mm above the top of the module Store chemica...

Страница 15: ...area m2 0 7 Dimensions mm Total width 480 Total height 800 Thickness 1 8 Weight kg Dry 0 25 Wet Reference 0 5 Main material Membrane PVDF and PET non woven fiber Nozzle PE Fig III 1 Element Appearanc...

Страница 16: ...50 2F 3F and 4F cassette and modules Note that NHP210 300S and 600D are described in the separate Instruction Manual Contact Toray in case of replacing existing Toray MBR TMR Series or NHP210 Series w...

Страница 17: ...rubber PVC 304SS Connection Manifold ANSI 1 1 2 inch flange using M12 bolts nuts One flange per module Air diffuser NPT 1 1 4 inch screw One connection per Aeration block NPT 1 1 2 inch screw Two conn...

Страница 18: ...nuts One flange per each deck 2F 2 pcs per module 3F 3 pcs per module 4F 4 pcs per module Air diffuser NPT 1 1 2 inch screw Two connections per Aeration block Operating range 3 Temperature 5 40 deg C...

Страница 19: ...ds Dried at 103 105 deg C or ISO 11923 3 Measuring method of NTU is complied with Standard Method of Examination of Water and Wastewater 20th Edition 1998 Section 2130 Turbidity or ISO 7027 Table III...

Страница 20: ...ion The air scour should be suspended when the filtration process is stopped except for the following conditions 1 During normal membrane relaxation periods 2 During suspended filtration operation unl...

Страница 21: ...aving openings of 3 mm or less prior to being introduced into the membrane tank Failure to incorporate the screen device may result in large solids clogging or causing physical damage to the membrane...

Страница 22: ...trol valve fully closes to effectively stop the filtration process When the liquid level of the membrane tank reaches the designed upper limit the automatic shut off valve on the raw water influent li...

Страница 23: ...reaches the designed lower limit the filtration mode should be stopped As with the gravity filtration mode previously discussed should the membrane tank water level reach the designed upper limit the...

Страница 24: ...to control the flow rate of filtrate water It is recommended that each train be fitted with its own discreet filtrate flow rate controller when operating more than one NHPA Series module simultaneous...

Страница 25: ...s advised installing at a minimum one air flow meter for each train f Suction pump A suction pump is required in the case of pump suction configuration To achieve an accurate designed filtrate flow ra...

Страница 26: ...sludge It is very important to arrange the membrane modules with appropriate distances between each module to obtain an effective activated sludge circulation as well as not having excessive space aro...

Страница 27: ...dules in an existing aeration tank Contact Toray in the case the existing tank floor is not level If the existing tank floor is not level it is recommended that stands be installed as shown in Fig IV...

Страница 28: ...p twice the W1 distance between the modules and other aeration equipment in the case shown in Fig IV 8 Fig IV 8 Membrane Module Layout in Membrane Tank with Other Aeration Equipment top view Tank wall...

Страница 29: ...odule drawings attached to this manual 1 Pipe Arrangement for the Air Diffusers The pipe from the air supply device blower is connected to the air diffusers with the screws A as shown in Fig IV 9a b a...

Страница 30: ...Example of Piping to Air Diffusers for NHPA150 F Installation of One Unit A A B B B PG Fig IV 9c Example of Piping to Air Diffusers for NHPA150 F Installation of Multiple Units Header Pipe Header Pip...

Страница 31: ...e filtrated water piping from the Membrane Tank Fig IV 10 shows downward piping and Fig IV 11 shows upward piping The downward piping is incorporated when sufficient suction can be developed via sipho...

Страница 32: ...rd Piping from Membrane Tank Fig IV 11 Upward Piping from Membrane Tank Filtrate Water Outlet Filtrate Water Valve Chemical Feed Line Air Discharge Valve Chemical Injection Valve Air Discharge Valve C...

Страница 33: ...anifold If the load exceeds the limit shown above put some supports on the piping to reduce the load Be sure to confirm that the diameter of filtrate piping is suitable for the assumable maximum flow...

Страница 34: ...e NHPA Series module One is the element block complete with the prescribed number of membrane elements and the other box an aeration block 2 Do not lift the packages from overhead when unloading the p...

Страница 35: ...ndoors under lower than 40 deg C of the temperature If the NHPA Series cannot be stored indoors due to prevailing construction site conditions try to minimize the time being out of doors As soon as po...

Страница 36: ...of the tank and water or air lines 4 Using clean water in the tank check the operation of major equipment components such as pumps blowers sensors and control systems Review the drawings in the REFER...

Страница 37: ...pipe see 2 in the page 27 relevant decks must be connected Put the element block s onto the aeration blocks Joint both using provided bolts if guide rail system is not applied in case of 1F and 2F Us...

Страница 38: ...stand under the NHPA Series during lifting Use chains or slings with sufficient load rating to lift the weight of the NHPA Series or any of its components When installing NHPA Series module make prov...

Страница 39: ...l ground water for clean water operation as it may contain much amount of iron manganese calcium and silica which may cause the clogging of the membrane pore 2 Clean Water Operation After feeding clea...

Страница 40: ...brane pores Do not conduct clean water operation for a long time Clean water operation may cause membrane clogging Keep the membranes wet once they get wet If the membranes are allowed to dry out the...

Страница 41: ...approaches 7 000 mg L Gradually increase the flux rate as the condition of the activated sludge improves 2 At the initial operation of suction pump priming filling the suction piping with water may be...

Страница 42: ...se silicone based anti foaming agent which may cause choking of membrane pores Recommended Kurita Water Industries Kuriless 653 Schill Seilacher Structol SB2032 The operating conditions may deviate fr...

Страница 43: ...ludge Avoid abrupt changes in pH temperature trans membrane pressure or any other conditions even if they are within the standard operating conditions Table VII 1 Perform regular inspections of the mo...

Страница 44: ...nts and sludge properties Every week for water quality analysis 3 Basic Control Philosophy Presented below is the point of the generic MBR control philosophy The actual MBR system control philosophy w...

Страница 45: ...while avoiding too much stress to the membrane elements 3 Membrane Tank Water Level If the liquid level in the membrane tank reaches the low level the suction pump and membrane scouring air should be...

Страница 46: ...le MBR modules are located in the same tank check that diffused air is being evenly distributed between each MBR module If uneven air distribution is observed conduct an air diffuser cleaning as descr...

Страница 47: ...dge discharge rate In the case where the air supply for biological aeration requirements and the air piping for membrane scouring comes from the same blower do not exceed the recommended range of memb...

Страница 48: ...hod is a simple and reliable method to determine the filtration properties of the sludge See the method described in the attached document Toray recommends conducting paper filtration test and measure...

Страница 49: ...5 Replace air diffusers when extraordinary uneven diffusion is detected even after cleaning Be sure to use Toray approved replacement parts Contact Toray sales department to obtain information on how...

Страница 50: ...leaning procedure 1 Repeat the operation of turning on and off the blower several times or increasing and decreasing the blower air flow several times This operation expands and contracts the rubber p...

Страница 51: ...ncreases can be the result of less than the optimal operating conditions This operating procedure is effective to prolong the life of membranes 4 If the membrane permeability is not recovered by a sin...

Страница 52: ...l chemical containers after each use e Thoroughly wash your hands and face and rinse out your mouth after using chemicals f Do not eat or drink anything in the working place except in a designated pla...

Страница 53: ...strong oxidants and bases b Handle the chemical container with great care Avoid toppling bumping or dragging it c Take care not to spill liquid chemicals and avoid breathing in vapors In the case of d...

Страница 54: ...h your skin or clothes immediately wash the contacted area with a large volume of running water If chemicals splash into your eyes immediately flush with large volumes of running water and contact a d...

Страница 55: ...d the chemical is being pumped to the elevated cleaning chemical injection tank v Slowly open the chemical injection valve to start injecting the chemical vi After injecting the specified amount of ch...

Страница 56: ...les It is recommended that the filtrate flow be directed back into the raw water tank until no residual cleaning chemical is detected Before directing the filtrate from the raw water tank back to the...

Страница 57: ...ting up the MBR after a chemical cleaning some residual cleaning chemical may be present in the filtrated water for 2 or more filtration cycles It is recommended that the filtrate flow be directed bac...

Страница 58: ...ycles It is recommended that the filtrate flow be directed back into the raw water tank until no residual cleaning chemical is detected Before directing the filtrate from the raw water tank back to th...

Страница 59: ...ot inject any chemical into the membrane directly from the chemical pump discharge Excessive membrane element internal pressure will damage the element Be sure to inject chemicals at a pressure less t...

Страница 60: ...Also do not lift entire decks at one time The upper lower element block must be lifted one by one to avoid distortion or damage to the element block which may cause severe accident See the instruction...

Страница 61: ...is shown and the cover plate is omitted in the left figure for your easy understanding 2 Unscrew the air diffuser pipes from the header pipe 3 Seal the nipples of new air diffusers with Teflon seal ta...

Страница 62: ...iffuser pipes 5 Fit the header pipes to the aeration block while fixing air diffusers on the pipe supports Be careful not to damage the rubber parts of air diffusers Element block header pipe pipe sup...

Страница 63: ...ule covered with water Open air discharge valve before pouring water and keep it open during storage A periodic dosing of the membrane tank storage water to a 50 ppm concentration of sodium hypochlori...

Страница 64: ...s according to local waste disposal regulations If required disassemble the module and segregate its components accordingly e g combustible incombustible 3 Do not incinerate the membrane unless approp...

Страница 65: ...S035 x 3 or EBL150 x 1 4 NHPA150 2F Required Quantity per Module NHPA150 2F Filtrate Tube When deterioration detected NHP TUBE 200 200pcs set 300 pcs unit Air Diffuser When deterioration detected DIFF...

Страница 66: ...the air diffusers to improve air diffusion Conduct chemical cleaning Remove sludge cake by external cleaning Abnormal properties of sludge have worsened its filterability Improve sludge properties Ad...

Страница 67: ...laim the customer automatically agrees to provide Toray with the information about operation mode recording performance data of MBR systems Please kindly contact Toray if the customer wishes to deviat...

Страница 68: ...tion Manual 06 G MB2 NHPAF 220801 63 of 63 XII REFERENCE Following information is provided upon your request 1 Assembly of Modules 2 Assembly of Guide Rail System 3 Assembly of Hangers 4 Procedure of...

Страница 69: ...tegrated approach using our 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 w...

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