D�\��#͈� 3>� -0.0572 Tc 419.16 421.68 Td Use the following assumptions: loading rate is 216 m3/d.m2 , specific gravity of sand is 2.65, the shape factor is 0.82, the bed porosity is 0.45, the water temperature is 10oC, and the depth of sand is 0.5 m. Sieve No % retain d(mm) 8-12 7.3 2 12-16 17.1 1.42 X 5. (pressure vessel)Tj Langelier index calculator. 0 0 0 rg 1.145 623.685 612.577 132.82 re ET �/jJQ� �0 �0�0. -0.0115 Tc -0.0053 Tw T* h -0.0187 Tc 0.0019 Tw 0 -13.08 TD endobj -0.0102 Tc -0.0216 Tw (fitted with a set of frontal pipe work )Tj For Chlorine contact time is 2 min. Design Overview James M. Ebeling, Ph.D. Environmental Engineer ... fluidized sand filter, moving-bed bioreactor etc, where the ammonia is converted to nitrate by bacteria. endstream endobj 5 0 obj <> endobj 4 0 obj <>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/XObject<>>>/Type/Page>> endobj 41 0 obj <>stream -0.0208 Tc 0.019 Tw -129.48 -23.4 Td The rapid sand filter is operated with clarification ahead of the filter. <>>>/BBox[ 0 0 352.96 245.19] /Matrix[ 0.20399 0 0 0.29365 0 0] /Filter/FlateDecode/Length 61>> <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 720 540] /Contents 8 0 R/Group<>/Tabs/S/StructParents 1>> ET endobj /TT1 14.04 Tf -0.022 Tc 0 Tw T* (suspended matter)Tj Sand Filter Calculations Known Items: Diameter Height play sand $ 3.47 30 gal drum 19.5 29.5 filter sand $ 5.48 55 gal drum 23.75 34.5 size-cu.ft. q (-)Tj -0.0147 Tc -0.0021 Tw ( this could be either vertical or )Tj /TT0 11.04 Tf 0 Tc -0.0168 Tw ( )Tj Calculation of the Pressure Drop over the Filter Medium and/or the Filter Cake. $ Q <> 0.9977264 0 0 1.0161438 -1.4342804 24.535965 cm Q h These standards specify the calculation method of the vessel, the raw materials requisites, and the essays to be performed to the materials, prototypes and products. endobj -0.0161 Tc 0 Tw T* Peak Discharge Calculation for Bypass Flow ( )Tj -0.0454 Tc 133.8 98.16 Td Pressure sand filter is the first unit process in any treatment. <> -0.0224 Tc 120.6 98.16 Td { �0V " q (horizontal)Tj FIR FILTER DESIGN SOFTWARE Pressure Sand Filters For Water Treatment. ET BT BT Pressure sand Filters - Sewage Treatment Plant - Ahmedabad - … <> BT -0.0149 Tc -0.0019 Tw T* (1: Vertical Pressure Sand Filter)Tj 133.8 95.76 3.6 11.88 re -0.0135 Tc -0.0033 Tw -118.92 -23.52 Td ET ( )Tj (silex, a top distributor to distribute the incoming )Tj 0 Tc -0.0168 Tw ( )Tj (treated by addition of a coagulant like alum)Tj )Tj endobj endstream Roughing filters may be used CHAPTER 5 ... not only pollute the filter surface but also disturb the sand to a greater depth than will be removed by scraping. x�}ϱ %���� Q (vertical pressure sand filter. uuid:51ba8fdc-23c4-4a75-bce5-bdde0de0db06 h Q W n (graded under bed consisting of pebbles and )Tj This water filtration unit (Pressure Sand Filter), capacity 40 cum / hr. BT W n (The filter is now taken out of service and )Tj -0.035 Tc 0 Tw T* BT Depending on the capacity, they can be implemented as single tank or parallely operated multi tanks. /Im3 Do <> 0 0 0 rg endstream /TT0 11.04 Tf q ET Calculation of the Pressure Drop over the Filter Medium and/or the Filter Cake 2.1.1. Recommended velocity for filtration is 10 m/hr to 30 m/hr. W n q -0.0454 Tc 409.68 421.68 Td <> /TT0 9.96 Tf The process of )Tj As with gravity filters, the media is usually sand or a combination of media, and filtration rates are similar to gravity filters. The major advantages of dual … -0.015 Tc -0.0168 Tw T* 0 Tc 0.0097 Tw 118.92 0 Td 120.6 95.76 13.2 11.88 re Consequently, for a given particle size, the pressure drop increase is lower with angular grain than with rounded ones. Activated carbon filter calculation based on EBCT value. /TT0 9.96 Tf evaporation of water (lake en pan evaporation) Seawater Reverse Osmosis Cost Analysis 73 %PDF-1.5 (action, which loosens the intercepted particles. endstream ET q The pressure filter is operated at elevated pressures, thus prolonging the filter cycle and/or increasing the rate of flow of water through the filter. stream 3 0 obj 9 0 obj (Product Description)Tj 0.0326 Tc -0.0908 Tw 137.4 98.16 Td 0.0064 Tc -0.0124 Tw (ressure Sand Filter )Tj BT At high loading densities, a ... For more exact calculation of ammonia-nitrogen that relates . 2007-06-11T13:25:18 ET W n )Tj /TT1 18 Tf (2)Tj -0.0162 Tc 0 Tw T* ) 0i. -0.048 Tc 69.12 607.08 Td /TT0 9.96 Tf -0.0153 Tc -0.0015 Tw T* �;� �� �0 �/$ )0X" -0.0198 Tc 0.003 Tw 0 -13.08 TD W n -0.0137 Tc -0.0151 Tw 0 -13.2 TD ҝb��{:�X%Iu��=m��͓{�z���-¶����B�&�p�����ל ��d��K2$��!�X�B#���V�����G��9��>�NQ� !�RדΊ�q>�a��. 2015-07-24T12:04:11+05:30 Q /TT0 9.96 Tf + .�� �0t 0� C0� 4f^ 0 ) 0� !�0� 0���~� �0 �0�w0J� u� &. h W n 0.5 Cylinder Choice (for 50 lb bag) Choose if cylinder or rectangle cylinder Enter data in green cells only Diameter Height Blue cells are results of calculations 0 Tc 0.0097 Tw 129.48 0 Td Literature conversion for pdf-MP - Microsoft Word �0' 00��9 ��� �� KC �0� �0z " ! <>>> In order to design the pressure vessels, three world recognized standards have been taken into consideration; AD-Merkblatt N1 (Germany) , BS4994 (United Kingdom). Recirculating Aquaculture Systems Short Course /TT0 9.96 Tf /TT1 14.04 Tf /Im1 Do -0.0141 Tc 0.0145 Tw T* (water uniformly throughout t)Tj f (sand grains immediately below the surface. Ion exchange calculator. USA - Rapid Sand Filter Design Inputs Design a rapid sand filter to treat Q= 20000 m3/d Allowing filtered water for backwashing: Q_BW= 2% Time used for bakwashing per day = t_BW= 0.50 hours Assume the rate of filtration = 10 m/h Number of Filters 2.00 endobj (air scouring agitates the sand with a scrubbing )Tj -0.0425 Tc 0.0257 Tw ( is )Tj ET It is used to remove suspended solids from raw water. Accuracy water analysis calculation. )Tj -0.02 Tc 0.0032 Tw T* (There is steady rise in the loss of head as the )Tj stream -0.0178 Tc 0.001 Tw 0 -13.2 TD -0.0224 Tc 396.48 421.68 Td Q (and valves, graded sand supported by layers of )Tj �l� �d� 0� �C �0c Cp �0 �/00� �0 + " 1 0 obj }����TC�|�F �� � uuid:7730a1a2-a944-43cf-bcb0-68d064b24d37 -0.0231 Tc -0.0177 Tw ( which has usually been )Tj 0 Tc -0.0168 Tw ( )Tj (operation is often preceded by air agita)Tj factor according to filter diameter diameter factor 10 0.13 20 0.55 30 1.00 40 1.50 50 2.50 60 4.30 90 6.80 120 9.70 175 15.00 200 16.30 250 17.40 300 25.00 350 26.70 400 30.60 450 32.50 . (tion )Tj h 2015-07-24T12:04:11+05:30 545.52 419.28 5.16 11.88 re Horizontal Pressure Sand Filter Pressure Sand Filter typically offer lower initial and operating costs than conventional systems, and the package nature of these systems greatly simplifies the design and installation for the engineer and contractor. (Working Principle)Tj W n -0.0582 Tw 269.64 98.16 Td Empty Bed Contact Time is calculated as volume of empty bed divide by flow rate. /TT0 9.96 Tf Calculation of clean bed head loss Type of flow Laminar ( R e<6) TransitionalorTurbulent The flow through a clean filter of ordinary grain size (0.5-1mm) at ordinary filtration velocities (4.9-12m/h) would be in the laminar range . BT q /TT0 9.96 Tf 26–6 (210-vi–NEH, October 1994) Chapter 26 Gradation Design of Sand and Gravel Filters Part 633 National Engineering Handbook Table 26–13 Data for designed filter band 26–29 Table 26–14 Design filter band data for example 26–6 soil 26–34 Table 26B–1 Selected standard aggregate gradations 26–41 Figures Figure 26–1 Grain size distribution curve for fine clay base soil 26–9 (wards through the filter bed and as the )Tj Sand Filter Design Example # Assume inflow pipe diameter = 1 ft # Assume over the crown pipe cover = 2 ft # Final surface elevation above sand filter = 101 ft = 98 ft + 2 ft + 1 ft # Depth of filter layer: df-max = 3 feet df-min = 1.8 feet 2. Material Shape: Granules can be angular (grinded) or rounded (river and sea sand); on the contrary of what can be thought, the first is less easily coupled to each other al lowing more pores than the la tter. 7 0 obj /Im2 Do /TT0 9.96 Tf System Design Variables For a dust collection system to function ade-quately engineers must design and operate the system to maintain the (4) key design parameters of CFM, FPM, Vacuum Pressure and Air to Cloth Ratio (or A/C). Q (excessive. -0.0313 Tc T* (filtration process continues )Tj W n Contact time is defined in minutes and below is the some examples. . -0.0582 Tw 545.52 421.68 Td �,����Ci��_BFu&��" Q -0.0142 Tc -0.0026 Tw (and the flow reduces )Tj �dت �0` � �0� �000�0�� O0� ! (the filter, and an under drain system to collect )Tj q ( )Tj 137.4 95.76 132.24 11.88 re 2 PRESENTATION AGENDA • Media Types • Filter Types – Filters versus Conditioners • Valve Types – Time Clock, Meter Initiated, Pressure Differential, Manual • Installation Procedures • Operation Procedures – Filter and Conditioner Sequences • Maintenance – Backwashing, Regeneration, Chemical Cleaning, Media Replacement 0 0 0 rg )Tj Calculation for activated carbon filter design. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 720 540] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Manual or automatic operation of the units is possible. -0.0174 Tc 0 Tw T* BT f h (P)Tj 0 Tc -0.0168 Tw ( )Tj 288 0 0 -175.44 312.12 615.24 cm . 0 0 0 rg Fig 1 shows the arrangement of a vertical pressure sand filter. Q endobj (In pressure sand filter raw water flows down )Tj ( )Tj (retained on the sand surface ands between the )Tj Each tank is NSF listed and manufactured by ASME Code certifiedwelders from Type q Anthracite/sand filter beds normally provide all of the advantages of single-media filtration but require less backwash water than sand or anthracite alone. For VOC contact time is 7 min -0.0157 Tc -0.0011 Tw 0 -13.08 TD Sand MAN 6110 06.09-E PRESSURE SAND FILTER Pressurized sand filters are commonly used for suspended solids removal from water and waste water. Q 0 0 0 rg 0 0 0 rg 135.12 0 0 -32.28 69.12 678.24 cm Q 1 1 1 rg endstream endobj 15 0 obj <>stream 413.28 419.28 5.88 11.88 re Similar claims have been made for anthracite/sand/garnet mixed units. Literature conversion for pdf-MP.PDF 10 0 obj -0.0137 Tc 0.0119 Tw T* %PDF-1.6 %���� BT q HORIZONTAL FILTER D U A L C E L L Standard Features Options Paddock’s Dual Cell Horizontal Pressure Sand Filters are designed to save on space and cost without compromising performance, durability, or ease of operation. (-)Tj q Filtration in water Treatment 5.1 Definition of Sedimentation: Filtration is a solid –liquid separation process in which the liquid passes through a porous medium to remove as much fine suspended solids as possible 5.2 Locations of filtrationtanks inwater treatment: Ionic strength and activity coeficient. -0.0227 Tc 0.0359 Tw (he cross section of )Tj -0.0186 Tc 0.0018 Tw T* Changes to any of these key sys-tem parameters will result in systemwide perform-ance issues. (To assist in cleaning the bed, the backwash )Tj 0.0394 Tc 0 Tw (-)Tj q Q (Fig)Tj �Y�7��f�W���e�!䉠;#�G��E#�q�����ȧ��@�k�B�qhBq�[���8���-��q�����.�V^9ՙB\D��{1�:{}X���ZR~���\K���pD� x�읽��0o�ٖ�Ӄ��jp���� ��)��c�N�w]~��� D��4g?�]�J Rn��e!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!���>?? �Pz�� �n�7)�����stH� b[� �I�b�����t��40ؓq%�dbʀt�)���Y-��^���:j&�mV��C��Ӽݬ�~A��"�p�Ý��v쌃�\�}٦t���P_3��\Gyl�{ԇf�^�}�Z�E� has constructed and installed at Indian Oil plant Korba (Chhattisgarh). T* 0.0394 Tc 0 Tw (-)Tj ET Specifically, pressure filter systems have been developed to focus on common ground Nb W0�! 0 0 0 rg stream 0 0 0 rg (once the pressure drop across the filter is )Tj q W n 341.88 404.64 252.12 30.12 re q 5 0 obj )Tj stream 0.0394 Tc 0 Tw (-)Tj x�m�Ak1�{ ����L�5 0.0036 Tc 413.28 421.68 Td Acrobat PDFWriter 4.05 for Windows NT sand filter using the sand. 0 0 0 rg �0��=�w8s��ܛ6I�t�up(��,�N*��UA+���q�/Q�y�. 396.48 419.28 13.2 11.88 re 78.12 84.24 234 27 re 261 0 0 -154.44 69.12 259.68 cm -0.0289 Tc 0.0386 Tw 0 -32.04 TD Fig 1 shows the arrangement of a )Tj (Fig)Tj {�ү��"�}B!q����r�7!���#�,�ӛ&���qw����߂r]m�7Ѽ�Y�M�&����1zdÔ�o�TgW /�H����oB9�K7[;S �nq��d��OK�uڵ��H�m�ߗ��X�+�1�� O!� DE:������T�AQ��]�M����G>m����M�R��B�&�^��0�0NNw{I��G�%�|�����m !�� -0.0191 Tc 0.0173 Tw -189.84 -13.2 Td Appendix I. <> ! h (The filter is now ready to be put back into )Tj The cleaning of the bed may … (A typical pressure sand filter consists of a )Tj BT �0 &0�0) -0.0161 Tc 0.0127 Tw 272.52 112.2 Td W* n Pressure filters are used for small treatment plants or industries. 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pressure sand filter design calculation pdf

//pressure sand filter design calculation pdf

pressure sand filter design calculation pdf

0 0 0 rg 0.0394 Tc (-)Tj (:)Tj -0.0143 Tc -0.0025 Tw 0 -13.2 TD Q Design of a Filtration System for a Small Scale … www.ijesi.org 40 | Page Filter sand has a grain size of 0.4-1.0mm which is large in comparison with many of the smaller particles carried by water and the rapid gravity sand filter can only operate as intended when coagulants have Osmotic pressure calculator. h /TT0 9.96 Tf '"��-�ۣ5y��m*tgL��{+y��[|:�*>D�\��#͈� 3>� -0.0572 Tc 419.16 421.68 Td Use the following assumptions: loading rate is 216 m3/d.m2 , specific gravity of sand is 2.65, the shape factor is 0.82, the bed porosity is 0.45, the water temperature is 10oC, and the depth of sand is 0.5 m. Sieve No % retain d(mm) 8-12 7.3 2 12-16 17.1 1.42 X 5. (pressure vessel)Tj Langelier index calculator. 0 0 0 rg 1.145 623.685 612.577 132.82 re ET �/jJQ� �0 �0�0. -0.0115 Tc -0.0053 Tw T* h -0.0187 Tc 0.0019 Tw 0 -13.08 TD endobj -0.0102 Tc -0.0216 Tw (fitted with a set of frontal pipe work )Tj For Chlorine contact time is 2 min. Design Overview James M. Ebeling, Ph.D. Environmental Engineer ... fluidized sand filter, moving-bed bioreactor etc, where the ammonia is converted to nitrate by bacteria. endstream endobj 5 0 obj <> endobj 4 0 obj <>/Font<>/ProcSet[/PDF/Text/ImageC/ImageI]/XObject<>>>/Type/Page>> endobj 41 0 obj <>stream -0.0208 Tc 0.019 Tw -129.48 -23.4 Td The rapid sand filter is operated with clarification ahead of the filter. <>>>/BBox[ 0 0 352.96 245.19] /Matrix[ 0.20399 0 0 0.29365 0 0] /Filter/FlateDecode/Length 61>> <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 720 540] /Contents 8 0 R/Group<>/Tabs/S/StructParents 1>> ET endobj /TT1 14.04 Tf -0.022 Tc 0 Tw T* (suspended matter)Tj Sand Filter Calculations Known Items: Diameter Height play sand $ 3.47 30 gal drum 19.5 29.5 filter sand $ 5.48 55 gal drum 23.75 34.5 size-cu.ft. q (-)Tj -0.0147 Tc -0.0021 Tw ( this could be either vertical or )Tj /TT0 11.04 Tf 0 Tc -0.0168 Tw ( )Tj Calculation of the Pressure Drop over the Filter Medium and/or the Filter Cake. $ Q <> 0.9977264 0 0 1.0161438 -1.4342804 24.535965 cm Q h These standards specify the calculation method of the vessel, the raw materials requisites, and the essays to be performed to the materials, prototypes and products. endobj -0.0161 Tc 0 Tw T* Peak Discharge Calculation for Bypass Flow ( )Tj -0.0454 Tc 133.8 98.16 Td Pressure sand filter is the first unit process in any treatment. <> -0.0224 Tc 120.6 98.16 Td { �0V " q (horizontal)Tj FIR FILTER DESIGN SOFTWARE Pressure Sand Filters For Water Treatment. ET BT BT Pressure sand Filters - Sewage Treatment Plant - Ahmedabad - … <> BT -0.0149 Tc -0.0019 Tw T* (1: Vertical Pressure Sand Filter)Tj 133.8 95.76 3.6 11.88 re -0.0135 Tc -0.0033 Tw -118.92 -23.52 Td ET ( )Tj (silex, a top distributor to distribute the incoming )Tj 0 Tc -0.0168 Tw ( )Tj (treated by addition of a coagulant like alum)Tj )Tj endobj endstream Roughing filters may be used CHAPTER 5 ... not only pollute the filter surface but also disturb the sand to a greater depth than will be removed by scraping. x�}ϱ %���� Q (vertical pressure sand filter. uuid:51ba8fdc-23c4-4a75-bce5-bdde0de0db06 h Q W n (graded under bed consisting of pebbles and )Tj This water filtration unit (Pressure Sand Filter), capacity 40 cum / hr. BT W n (The filter is now taken out of service and )Tj -0.035 Tc 0 Tw T* BT Depending on the capacity, they can be implemented as single tank or parallely operated multi tanks. /Im3 Do <> 0 0 0 rg endstream /TT0 11.04 Tf q ET Calculation of the Pressure Drop over the Filter Medium and/or the Filter Cake 2.1.1. Recommended velocity for filtration is 10 m/hr to 30 m/hr. W n q -0.0454 Tc 409.68 421.68 Td <> /TT0 9.96 Tf The process of )Tj As with gravity filters, the media is usually sand or a combination of media, and filtration rates are similar to gravity filters. The major advantages of dual … -0.015 Tc -0.0168 Tw T* 0 Tc 0.0097 Tw 118.92 0 Td 120.6 95.76 13.2 11.88 re Consequently, for a given particle size, the pressure drop increase is lower with angular grain than with rounded ones. Activated carbon filter calculation based on EBCT value. /TT0 9.96 Tf evaporation of water (lake en pan evaporation) Seawater Reverse Osmosis Cost Analysis 73 %PDF-1.5 (action, which loosens the intercepted particles. endstream ET q The pressure filter is operated at elevated pressures, thus prolonging the filter cycle and/or increasing the rate of flow of water through the filter. stream 3 0 obj 9 0 obj (Product Description)Tj 0.0326 Tc -0.0908 Tw 137.4 98.16 Td 0.0064 Tc -0.0124 Tw (ressure Sand Filter )Tj BT At high loading densities, a ... For more exact calculation of ammonia-nitrogen that relates . 2007-06-11T13:25:18 ET W n )Tj /TT1 18 Tf (2)Tj -0.0162 Tc 0 Tw T* ) 0i. -0.048 Tc 69.12 607.08 Td /TT0 9.96 Tf -0.0153 Tc -0.0015 Tw T* �;� �� �0 �/$ )0X" -0.0198 Tc 0.003 Tw 0 -13.08 TD W n -0.0137 Tc -0.0151 Tw 0 -13.2 TD ҝb��{:�X%Iu��=m��͓{�z���-¶����B�&�p�����ל ��d��K2$��!�X�B#���V�����G��9��>�NQ� !�RדΊ�q>�a��. 2015-07-24T12:04:11+05:30 Q /TT0 9.96 Tf + .�� �0t 0� C0� 4f^ 0 ) 0� !�0� 0���~� �0 �0�w0J� u� &. h W n 0.5 Cylinder Choice (for 50 lb bag) Choose if cylinder or rectangle cylinder Enter data in green cells only Diameter Height Blue cells are results of calculations 0 Tc 0.0097 Tw 129.48 0 Td Literature conversion for pdf-MP - Microsoft Word �0' 00��9 ��� �� KC �0� �0z " ! <>>> In order to design the pressure vessels, three world recognized standards have been taken into consideration; AD-Merkblatt N1 (Germany) , BS4994 (United Kingdom). Recirculating Aquaculture Systems Short Course /TT0 9.96 Tf /TT1 14.04 Tf /Im1 Do -0.0141 Tc 0.0145 Tw T* (water uniformly throughout t)Tj f (sand grains immediately below the surface. Ion exchange calculator. USA - Rapid Sand Filter Design Inputs Design a rapid sand filter to treat Q= 20000 m3/d Allowing filtered water for backwashing: Q_BW= 2% Time used for bakwashing per day = t_BW= 0.50 hours Assume the rate of filtration = 10 m/h Number of Filters 2.00 endobj (air scouring agitates the sand with a scrubbing )Tj -0.0425 Tc 0.0257 Tw ( is )Tj ET It is used to remove suspended solids from raw water. Accuracy water analysis calculation. )Tj -0.02 Tc 0.0032 Tw T* (There is steady rise in the loss of head as the )Tj stream -0.0178 Tc 0.001 Tw 0 -13.2 TD -0.0224 Tc 396.48 421.68 Td Q (and valves, graded sand supported by layers of )Tj �l� �d� 0� �C �0c Cp �0 �/00� �0 + " 1 0 obj }����TC�|�F �� � uuid:7730a1a2-a944-43cf-bcb0-68d064b24d37 -0.0231 Tc -0.0177 Tw ( which has usually been )Tj 0 Tc -0.0168 Tw ( )Tj (operation is often preceded by air agita)Tj factor according to filter diameter diameter factor 10 0.13 20 0.55 30 1.00 40 1.50 50 2.50 60 4.30 90 6.80 120 9.70 175 15.00 200 16.30 250 17.40 300 25.00 350 26.70 400 30.60 450 32.50 . (tion )Tj h 2015-07-24T12:04:11+05:30 545.52 419.28 5.16 11.88 re Horizontal Pressure Sand Filter Pressure Sand Filter typically offer lower initial and operating costs than conventional systems, and the package nature of these systems greatly simplifies the design and installation for the engineer and contractor. (Working Principle)Tj W n -0.0582 Tw 269.64 98.16 Td Empty Bed Contact Time is calculated as volume of empty bed divide by flow rate. /TT0 9.96 Tf Calculation of clean bed head loss Type of flow Laminar ( R e<6) TransitionalorTurbulent The flow through a clean filter of ordinary grain size (0.5-1mm) at ordinary filtration velocities (4.9-12m/h) would be in the laminar range . BT q /TT0 9.96 Tf 26–6 (210-vi–NEH, October 1994) Chapter 26 Gradation Design of Sand and Gravel Filters Part 633 National Engineering Handbook Table 26–13 Data for designed filter band 26–29 Table 26–14 Design filter band data for example 26–6 soil 26–34 Table 26B–1 Selected standard aggregate gradations 26–41 Figures Figure 26–1 Grain size distribution curve for fine clay base soil 26–9 (wards through the filter bed and as the )Tj Sand Filter Design Example # Assume inflow pipe diameter = 1 ft # Assume over the crown pipe cover = 2 ft # Final surface elevation above sand filter = 101 ft = 98 ft + 2 ft + 1 ft # Depth of filter layer: df-max = 3 feet df-min = 1.8 feet 2. Material Shape: Granules can be angular (grinded) or rounded (river and sea sand); on the contrary of what can be thought, the first is less easily coupled to each other al lowing more pores than the la tter. 7 0 obj /Im2 Do /TT0 9.96 Tf System Design Variables For a dust collection system to function ade-quately engineers must design and operate the system to maintain the (4) key design parameters of CFM, FPM, Vacuum Pressure and Air to Cloth Ratio (or A/C). Q (excessive. -0.0313 Tc T* (filtration process continues )Tj W n Contact time is defined in minutes and below is the some examples. . -0.0582 Tw 545.52 421.68 Td �,����Ci��_BFu&��" Q -0.0142 Tc -0.0026 Tw (and the flow reduces )Tj �dت �0` � �0� �000�0�� O0� ! (the filter, and an under drain system to collect )Tj q ( )Tj 137.4 95.76 132.24 11.88 re 2 PRESENTATION AGENDA • Media Types • Filter Types – Filters versus Conditioners • Valve Types – Time Clock, Meter Initiated, Pressure Differential, Manual • Installation Procedures • Operation Procedures – Filter and Conditioner Sequences • Maintenance – Backwashing, Regeneration, Chemical Cleaning, Media Replacement 0 0 0 rg )Tj Calculation for activated carbon filter design. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 720 540] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Manual or automatic operation of the units is possible. -0.0174 Tc 0 Tw T* BT f h (P)Tj 0 Tc -0.0168 Tw ( )Tj 288 0 0 -175.44 312.12 615.24 cm . 0 0 0 rg Fig 1 shows the arrangement of a vertical pressure sand filter. Q endobj (In pressure sand filter raw water flows down )Tj ( )Tj (retained on the sand surface ands between the )Tj Each tank is NSF listed and manufactured by ASME Code certifiedwelders from Type q Anthracite/sand filter beds normally provide all of the advantages of single-media filtration but require less backwash water than sand or anthracite alone. For VOC contact time is 7 min -0.0157 Tc -0.0011 Tw 0 -13.08 TD Sand MAN 6110 06.09-E PRESSURE SAND FILTER Pressurized sand filters are commonly used for suspended solids removal from water and waste water. Q 0 0 0 rg 0 0 0 rg 135.12 0 0 -32.28 69.12 678.24 cm Q 1 1 1 rg endstream endobj 15 0 obj <>stream 413.28 419.28 5.88 11.88 re Similar claims have been made for anthracite/sand/garnet mixed units. Literature conversion for pdf-MP.PDF 10 0 obj -0.0137 Tc 0.0119 Tw T* %PDF-1.6 %���� BT q HORIZONTAL FILTER D U A L C E L L Standard Features Options Paddock’s Dual Cell Horizontal Pressure Sand Filters are designed to save on space and cost without compromising performance, durability, or ease of operation. (-)Tj q Filtration in water Treatment 5.1 Definition of Sedimentation: Filtration is a solid –liquid separation process in which the liquid passes through a porous medium to remove as much fine suspended solids as possible 5.2 Locations of filtrationtanks inwater treatment: Ionic strength and activity coeficient. -0.0227 Tc 0.0359 Tw (he cross section of )Tj -0.0186 Tc 0.0018 Tw T* Changes to any of these key sys-tem parameters will result in systemwide perform-ance issues. (To assist in cleaning the bed, the backwash )Tj 0.0394 Tc 0 Tw (-)Tj q Q (Fig)Tj �Y�7��f�W���e�!䉠;#�G��E#�q�����ȧ��@�k�B�qhBq�[���8���-��q�����.�V^9ՙB\D��{1�:{}X���ZR~���\K���pD� x�읽��0o�ٖ�Ӄ��jp���� ��)��c�N�w]~��� D��4g?�]�J Rn��e!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!�B!���>?? �Pz�� �n�7)�����stH� b[� �I�b�����t��40ؓq%�dbʀt�)���Y-��^���:j&�mV��C��Ӽݬ�~A��"�p�Ý��v쌃�\�}٦t���P_3��\Gyl�{ԇf�^�}�Z�E� has constructed and installed at Indian Oil plant Korba (Chhattisgarh). T* 0.0394 Tc 0 Tw (-)Tj ET Specifically, pressure filter systems have been developed to focus on common ground Nb W0�! 0 0 0 rg stream 0 0 0 rg (once the pressure drop across the filter is )Tj q W n 341.88 404.64 252.12 30.12 re q 5 0 obj )Tj stream 0.0394 Tc 0 Tw (-)Tj x�m�Ak1�{ ����L�5 0.0036 Tc 413.28 421.68 Td Acrobat PDFWriter 4.05 for Windows NT sand filter using the sand. 0 0 0 rg �0��=�w8s��ܛ6I�t�up(��,�N*��UA+���q�/Q�y�. 396.48 419.28 13.2 11.88 re 78.12 84.24 234 27 re 261 0 0 -154.44 69.12 259.68 cm -0.0289 Tc 0.0386 Tw 0 -32.04 TD Fig 1 shows the arrangement of a )Tj (Fig)Tj {�ү��"�}B!q����r�7!���#�,�ӛ&���qw����߂r]m�7Ѽ�Y�M�&����1zdÔ�o�TgW /�H����oB9�K7[;S �nq��d��OK�uڵ��H�m�ߗ��X�+�1�� O!� DE:������T�AQ��]�M����G>m����M�R��B�&�^��0�0NNw{I��G�%�|�����m !�� -0.0191 Tc 0.0173 Tw -189.84 -13.2 Td Appendix I. <> ! h (The filter is now ready to be put back into )Tj The cleaning of the bed may … (A typical pressure sand filter consists of a )Tj BT �0 &0�0) -0.0161 Tc 0.0127 Tw 272.52 112.2 Td W* n Pressure filters are used for small treatment plants or industries. 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