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VI. Operation

1. Advance preparation

(1) Check that all piping is connected appropriately and flushed out prior to the

operation. Fig. 9 shows a typical example of piping.

Fig. 9 Typical example of piping

(2) Open the feed water valve (V-1) to provide the submerged tank with the feed

raw water. Make sure the water level of the submerged tank is higher than the

top of the filtrate piping.

(3) Open the filtrate water valve (V-2) and the air drain valve (V-6). Make sure the

filtrate piping between the filtrate pump and the membrane element is filled by

filtrated water.

(4) Close the air drain valve (V-6) and then run the filtrate pump. Make sure the

water in the backwash tank is enough for the next step, stop the filtrate pump

and close the feed water valve (V-1) and the filtrate water valve (V-2).

(5) Open the air drain valve (V-6) and the backwash valve (V-4) and run the

backwash pump until the filtrate piping is filled by filtrated water.

(6) Make sure all pumps are “stopped” and all valves are “closed”.

V-5

V-3

V-1

V-2

Backwash

pump

Backwash

tank

Filtrate
water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane

Membrane
Submerged
Tank

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane

Membrane
Submerged
Tank

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane

Membrane
Submerged
Tank

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane
Rack

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

Backwash

pump

Backwash

tank

Filtrate
water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane

Membrane
Submerged
Tank

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

Backwash

pump

Backwash

tank

Filtrate
water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane

Membrane
Submerged
Tank

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane

Membrane
Submerged
Tank

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane

Membrane
Submerged
Tank

Chemical

tank

Chemical feed

pump

V-7

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

V-5

V-3

V-1

V-2

pump

water

Feed
raw water

Drainage

Air for
scrubbing

Filtrate

pump

V-4

V-6

Membrane
Rack

Chemical

tank

Chemical feed

pump

V-7

Содержание HSU-1515

Страница 1: ...erged UF MEMBRANE ELEMENT Instruction Manual Model HSU 1515 issued by Toray Industries Inc Water Treatment Environment Division 2 1 1 Nihonbashi Muromachi Chuo ku Tokyo 103 8666 Japan Tel 81 3 3245 4557 Fax 81 3 3245 4913 URL http www toray com BJADJCAG ...

Страница 2: ...f rack 12 IV Specifications and Configuration 13 1 Specifications of Membrane 13 2 Specifications and Configuration of Element 14 3 Specifications and Configuration of Rack 16 4 Feed water and Cleaning Limits 20 V Installation 21 VI Operation 25 1 Advance preparation 25 2 Filtration 27 3 Backwash and Air scrubbing 29 4 Toray Maintenance Cleaning 31 5 Air Diffuser Cleaning 32 6 Temperature Correcti...

Страница 3: ...he air scrubbing can be adopted to remove suspended solid effectively 1 Characteristics of Toray Submerged UF Membrane Rack 1 High Filtration Flux It provides high filtration flux and stable operation for the filtration of various raw water sources The membrane is made with a special spinning method which enables high permeability and high fouling resistance 2 Excellent Water Quality It provides v...

Страница 4: ...chlorine and with high concentrations of acid resulting in better cleaning and longer sustainable membrane flux rates 2 Applications of Toray Submerged UF Membrane Rack Drinking Water Production Membrane Elements certified with NSF61 Tertiary Treatment of Sewage Water Industrial Water Production Reuse of Industrial Waste Water ...

Страница 5: ...ult in serious injury or death when the instruction is not observed This symbol indicates a potentially hazardous situation which will result in serious injury or death when the instruction is not observed This symbol indicates a potentially hazardous situation which might result in injury or property damage when the instruction is not observed The following table explains the information to be no...

Страница 6: ...straight upward calmly to prevent it from shaking Please never allow any person under lifted article When installing rack please set up a foothold in advance Please never do the work above the rack Use protective equipment to ensure the safety of workers Be sure to wear safety gear such as a helmet and safety shoes to avoid injury The preservative solution should be washed out before using the ele...

Страница 7: ... install the element vertically for effective air scrubbing Be sure to store the element transversely At transportation storage and installation rack please take appropriate measures to protect rack from damage Do not put any heavy objects on the rack Please take care to protect the rack from collision with other objects Please take adequate measures to protect rack from sparks caused by welding f...

Страница 8: ... quality Protect elements from direct sunlight and ultraviolet light Ultraviolet light can degrade element housing and membranes Constantly monitor filtrate water quality such as turbidity and or the number of particles during filtration and stop the operation if abnormal water quality is detected Do not exceed the maximum applicable trans membrane pressure for filtrating 100 kPa or for backwashin...

Страница 9: ...al Do not overfeed air to the element Excessive scrubbing air damages the membranes and or shortens the membrane life The air flow rate should be within the range below for each element HSU 1515 1 5 3 0 Nm3 h At the Integrity tests such as Pressure Decay Test PDT or Diffusive Air Flow DAF Test keep the air pressure below 125 kPa Keep the source air pressure lower than 200 kPa to prevent the elemen...

Страница 10: ...appropriately based on the MSDS Do not mix sodium hypochlorite with acid Such mixture generates toxic chlorine gas Stop operation whenever any anomaly occurs with the equipment or any signs of an anomaly are observed In the chemical cleaning strictly follow the procedure described in the latter section of this manual Otherwise you may damage the elements or negatively affect the membrane performan...

Страница 11: ... apply a service of a qualified waste disposing company When the element is to be incinerated please apply the appropriate facilities in which hydrogen fluoride HF gas can be neutralized HF gas is generaterd with the incineration of membrane Instruction WARNING WARNING ...

Страница 12: ... designed to be as follows For HSU 1515 Outside diameter is 1 4 mm Inside diameter is 0 9 mm Molecular weight cut off MWCO of the HSU membrane is shown in Fig 2 The MWCO is determined by dextran solution having molecular weight of 70 000 200 000 and 500 000 The concentrations of the dextran are measured by the Refractive Index Detector 0 20 40 60 80 100 10 000 100 000 1 000 000 MW of Dextran Rejec...

Страница 13: ...DF membranes In addition the physical strength of the membrane fiber is so high that it hardly gets breakage during the normal operation for many years 2 Outline of element TORAY PVDF Hollow Fiber Membrane Element HSU 1515 is submerged type which is shown Fig 3 Effective membrane area of an element is as follows HSU 1515 20 m2 HSU 1515 suitable for high turbidity water large scale water treatment ...

Страница 14: ...o the permeated water manifold The air diffuser consists of a number of holes to supply scouring air to each membrane element This rack is used submerged in water to be treated Rack image is shown Fig 4 Fig 4 Image of Rack 4 units of R16 Model are submerged in tank Permeate Backwash Feed Air Drain Drain Permeate Backwash Feed Air Drain Drain ...

Страница 15: ... Membrane Pressure Maximum 4 200 kPa Normal Operation Not higher than 150 kPa Storage and Operating Temperature Range 0 40 degree C Operating pH Range 1 10 1 Please note that the specifications are subject to changes from time to time 2 The nominal molecular weight cut off is determined with the model test of dextran 3 TMP Trans Membrane Pressure should be below 100 kPa at any time even during the...

Страница 16: ...ht Wet Condition 18 kg Materials Cap ABS Protective Cylinder PE Potting Material Epoxy or equivalent Connections Top Center IDF ISO Clamp Union Fitting 1 5s Operating Conditions Max Feed Water Flow 2 0 m3 h Max Backwash Flow 3 0 m3 h Max Air Flow 4 5 Nm3 h Normal Air Flow 1 5 3 0 Nm3 h Filtration Method Submerged Outside to inside Maximum Temperature 40 degree C 1 Please note that the specificatio...

Страница 17: ... a 50 IDF ISO Clamp Union Fitting 1 5s Filtrate Outlet b Inlet of Backwash Water a Feed Drain Feed Drain Drain Air Feed Air Air Lowest Water Level in Filtration 180 1327 156 Filtrate Outlet b Inlet of Backwash Water a Feed Drain Feed Drain Drain Air Feed Air Air Lowest Water Level in Filtration 180 1327 156 180 1327 180 1327 156 ...

Страница 18: ...587 mm Width 365 mm Weight Wet Condition Max 500 kg Materials Element PVDF ABS PE Epoxy or equivalent Rack 304SS 2 Pipe 304SS 2 PP HIVP Operating Conditions Max Feed Water Flow 32 m3 h Max Backwash Flow 48 m3 h Max Air Flow 72 Nm3 h Normal Air Flow 24 48 Nm3 h Filtration Method Submerged Outside to inside Maximum Temperature 40 degree C 1 Please note that the specifications are subject to changes ...

Страница 19: ...ion Max 250 kg Materials Element PVDF ABS PE Epoxy or equivalent Rack 304SS 2 Pipe 304 SS 2 PP HIVP Operating Conditions Max Feed Water Flow 16 m3 h Max Backwash Flow 24 m3 h Max Air Flow 36 Nm3 h Normal Air Flow 12 24 Nm3 h Filtration Method Submerged Outside to inside Maximum Temperature 40 degree C 1 Please note that the specifications are subject to changes from time to time 2 316SS is availab...

Страница 20: ...18 2 Configuration Rack Model R16 ...

Страница 21: ...19 Rack Model R08 ...

Страница 22: ...ours and the occurrence frequency should not exceed more than once a month Table 6 Cleaning limits for all types of elements 1 Cleaning pH Range 0 12 Cleaning Temperature Range 0 40 degree C Maximum Concentration of NaClO as Cl2 3 000 mg L 10 pH 12 Maximum NaClO Exposure lifetime contact time as Cl2 1 000 000 mg L hours Maximum Acid Contact Time 1 000 hours pH 0 1 Please note that the specificatio...

Страница 23: ...summer Do not freeze the element 3 Set the element vertically into a rack see Fig 6 Make sure that the element is installed vertically Please contact us if you need the detail information of the rack 4 Connect a filtrate piping to a connection point of the element with a ferrule joint see Fig 6 Keep the connection surface free of any dirt or oils Do not over tighten the clamp when using ferrule jo...

Страница 24: ... impaired Fig 6 Installation of Element in Membrane Rack CAUTION CAUTION WARNING WARNING a b e d f 1 2 c Element Rack Fixing Protrusion Ferrule Gasket Clamp a b c d e f Element installing to a rack Element connecting to a piping 1 2 a b e d f 1 2 c a b e d f 1 2 c Element Rack Fixing Protrusion Ferrule Gasket Clamp a b c d e f Element Rack Fixing Protrusion Ferrule Gasket Clamp a b c d e f Element...

Страница 25: ...ayout in Membrane Submerged Tank side view Fig 8 Rack Layout in Membrane Submerged Tank top view W2 W3 Top of Manifold L1 Liquid Level Guide Manifold Rack Foothold Tank Wall Union Guide W2 W3 Top of Manifold L1 Liquid Level Guide Manifold Rack Foothold Tank Wall Union Guide W1 W1 P1 P1 Guide Rail Tank Wall Foothold W4 Rack Guide Rail Rack Rack W1 W1 P1 P1 Guide Rail Tank Wall Foothold W4 Rack Rack...

Страница 26: ...l of the tank should be more than 100 mm at anytime of the normal operation the maximum is when after finishing backwash the value is changing depend on operation condition Please contact us for the details iii W1 more than 30 mm iv W2 more than 30 mm v W3 more than 30 mm vi W4 more than 800 mm ...

Страница 27: ... Submerged Tank Chemical tank Chemical feed pump V 7 V 5 V 3 V 1 V 2 pump water Feed raw water Drainage Air for scrubbing Filtrate pump V 4 V 6 Membrane Membrane Submerged Tank Chemical tank Chemical feed pump V 7 V 5 V 3 V 1 V 2 pump water Feed raw water Drainage Air for scrubbing Filtrate pump V 4 V 6 V 5 V 3 V 1 V 2 pump water Feed raw water Drainage Air for scrubbing Filtrate pump V 4 V 6 Memb...

Страница 28: ...mg L as the preservative at the time of shipment The preservative should be washed out before using the element After that keep clean water on the element to prevent the membranes from drying out Do not allow the element to dry even for a few hours CAUTION CAUTION ...

Страница 29: ...Membrane Chemical tank Chemical feed pump V 7 V 5 V 3 V 1 V 2 pump water Feed raw water Drainage Air for scrubbing Filtrate pump V 4 V 6 V 5 V 3 V 1 V 2 pump water Feed raw water Drainage Air for scrubbing Filtrate pump V 4 V 6 Membrane Rack Membrane Submerged Tank Chemical tank Chemical feed pump V 7 V 5 V 3 V 1 V 2 Backwash pump Backwash tank Filtrate water Feed raw water Drainage Air for scrubb...

Страница 30: ...e Details are described in the next session Please contact us if you need technical support 5 When you stop the filtration stop the filtrate pump and close the filtrate water valve V 2 and then close the feed water valve V 1 after make sure water level of the submerged tank is higher than the Lowest Water Level shown in Fig 5 Always monitor filtrate water quality during filtration and stop the ope...

Страница 31: ...aw water Drainage Air for scrubbing Filtrate pump V 4 V 6 Membrane Submerged Tank Chemical tank Chemical feed pump V 7 V 5 V 3 V 1 V 2 pump tank water Feed raw water Drainage Air for scrubbing Filtrate pump V 4 V 6 Membrane Submerged Tank Chemical tank Chemical feed pump V 7 V 5 V 3 V 1 V 2 pump tank water Feed raw water Drainage Air for scrubbing Filtrate pump V 4 V 6 V 5 V 3 V 1 V 2 pump water F...

Страница 32: ...within the range below Excessive air flow rate may damage the membranes HSU 1515 1 5 3 0 Nm3 h 5 After backwashing with air scrubbing for a fixed time normally 60 seconds close the air scrubbing valve V 5 stop the chemical feed pump if used and the backwash pump and close the chemical feed valve V 7 and the backwash valve V 4 6 Open the drainage valve V 3 7 Close the drainage valve V 3 after backw...

Страница 33: ... membrane performance retention This process is called Toray Maintenance Cleaning TMC TMC is usually held following the backwash and air scrubbing which does not contain the chemical dosing The frequency and the soaking time of TMC mainly depend on the raw water quality Normally once a day and each soaking time is 20 minutes Please contact us if you need technical support ...

Страница 34: ...ge nozzle Air diffuser cleaning procedure Fig 12 Condition when air scrubbing Fig 13 Condition when stop operation 1 After do the air scrubbing Fig 12 close V1 and V2 open V3 and V4 valve Fig 13 At this step the water from the tank comes through the diffuser holes into diffuser piping and is discharged with the water Stop operation 2 Keep this stop operation condition for about 5 seconds After tha...

Страница 35: ...close V1 V2 and V3 valves Drain out the water inside the tank restart the feed and filtration process 4 If the clogging occurs only on the one of the air diffuser line do the cleaning only for that line by repeating 1 3 Fig 14 Condition when cleaning process open close open close V3 V4 Compressor or Blower V1 V2 V3 V4 Compressor or Blower V1 V2 ...

Страница 36: ...ng by TCF at real temperature shown in Fig 15 A filtrate flow rate measured at some real temperature can be converted to 25 degree C corrected filtrate flow rate with divided by TCF at real temperature shown in Fig 15 Fig 15 Temperature correction factor TCF The equation for calculating TCF at a temperature T degree C is as follows TCF 0 0008902 0 01257187 x EXP 1 0 005806436 x 273 15 T 0 00113091...

Страница 37: ...e air for scrubbing V 1 P1 Filtrate Water V 7 Filtrate Pump V 6 The air for PDT Air Filter H Backwash Tank V 3 V 5 V 4 Backwash Pump Feed raw water Drainage P2 P2 P3 P3 V 2 The air for scrubbing V 1 P1 P1 Water V 7 Filtrate Pump V 6 The air for PDT Air Filter Membrane Submerged Tank H Backwash Tank V 3 V 5 V 4 Backwash Pump Feed raw water Drainage P2 P3 V 2 The air for scrubbing V 1 P1 Water V 7 F...

Страница 38: ...f 5 kPa in 5 minutes is normally used to indicate the presence of a single broken membrane fiber for this size of unit 7 In case of the pressure decay is excessiveness identify the elements with broken membrane fibers by visual check of water surface bubbling in the submerged tank The pressure time should be kept within 15 minutes to keep from drying out of the membrane 8 Mark any leaking elements...

Страница 39: ...e kPa 1 8 16 32 64 128 Diffusion Only No Breaks No of element HSU 1515 Fig 17 HSU 1515 pressure decay rates with one broken membrane fiber calculated NOTE Above figure and indicates the estimate values The actual values may depend on the volume of the pipe work temperature etc ...

Страница 40: ...ning If you use the unacceptable chemicals or perform the cleaning altered from the recommended procedure the membranes could be seriously damaged Pay full attention when handling chemicals and be sure to wear the safety gear such as glasses and gloves The chemicals used for the chemical cleaning are harmful to people If chemicals directly contact your skin your eyes or other body parts take the a...

Страница 41: ...rate side not shown in the figure instead of the soak is available V 5 V 3 V 1 V 2 Backwash pump Backwash tank Filtrate water Feed raw water Drainage Air for scrubbing Filtrate pump V 4 V 6 Membrane Rack Membrane Submerged Tank V 10 CIP pump V 9 V 6 V 10 CIP pump V 9 CIP tank V 11 Rinse water V 5 V 3 V 1 V 2 pump tank water Feed raw water Drainage Air for scrubbing Filtrate pump V 4 V 6 Membrane S...

Страница 42: ...from the submerged tank completely 11 Close the drainage valve V 3 12 Open the air drain valve V 6 and the backwash valve V 4 and run the backwash pump After purging any air out normally a few seconds from the backwash line close the air drain valve V 6 to feed back the filtrate water from the backwash tank to the element The flow rate of backwash water is set up in advance normally for 1 1 to 1 5...

Страница 43: ...mical cleaning Pollutants Chemicals Maximum Concentration Hold Time Inorganic Substances Citric acid 1 3 0 wt 1 3 hr Organic Substances Sodium hypochlorite 3 000 mg L as chlorine 10 pH 12 1 3 hr 1 Besides citric acid hydrochloric acid with the maximum concentration of 1 0 mol L oxalic acid with the maximum concentration of 1 0 wt sulfuric acid with the maximum concentration of 0 05 mol L and nitri...

Страница 44: ...ter in the submerged tank and keep the water level of the submerged tank is higher than the top of the membrane rack Keep the element at 0 40 degree C If the suspension lasts more than three days fill the submerged tank with the chemical described in Table 6 Use filtrate quality water Replace the chemical every maximum storage period described in Table 6 Keep the element at 0 40 degree C Table 6 C...

Страница 45: ... 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 The content of this Instruction Manual is subject to revision from time to time Unauthorized use or reproduction of this manual is forbidden ...

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