{"id":9347,"date":"2022-05-30T11:01:42","date_gmt":"2022-05-30T09:01:42","guid":{"rendered":"https:\/\/brightwork.nl\/?p=9347"},"modified":"2022-05-30T12:03:55","modified_gmt":"2022-05-30T10:03:55","slug":"clean-filter-bed-resistance-l-blog-5","status":"publish","type":"post","link":"https:\/\/brightwork.nl\/nl\/continuous-deep-bed-filtration\/clean-filter-bed-resistance-l-blog-5\/","title":{"rendered":"Schone filterbedweerstand l Blog 5"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"9347\" class=\"elementor elementor-9347\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8edb152 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8edb152\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9e1f0b4\" data-id=\"9e1f0b4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1a83be0 elementor-widget elementor-widget-elementskit-header-info\" data-id=\"1a83be0\" data-element_type=\"widget\" data-widget_type=\"elementskit-header-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"ekit-wid-con\" >        <ul class=\"ekit-header-info\">\n                                    <li>\n                            <a > \n                                <i aria-hidden=\"true\" class=\"icon icon-calendar3\"><\/i>                                30 mei 2022                            <\/a>\n                        <\/li>\n\n                            <\/ul>\n        <\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4dbb045 elementor-widget elementor-widget-page-title\" data-id=\"4dbb045\" data-element_type=\"widget\" data-widget_type=\"page-title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<div class=\"hfe-page-title hfe-page-title-wrapper elementor-widget-heading\">\n\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/brightwork.nl\/nl\">\n\t\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">\n\t\t\t\t\t\t\t\t\n\t\t\t\tSchone filterbedweerstand l Blog 5  \n\t\t\t<\/h1> \n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75afdaf elementor-widget elementor-widget-text-editor\" data-id=\"75afdaf\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"color: #000000;\">In een continu zandfilter passeert het water het filterbed in opwaartse richting. De stroming van water door een poreus medium resulteert in een hydraulische drukval. Deze drukval noemen we de filterbedweerstand. De werkelijke waarde van deze filterbedweerstand wordt gemeten door het aflezen van het verschil in opvoerhoogte in de toevoerleiding naar het filter en het filtraatniveau in het filter, zoals aangegeven in de figuur.\u00a0\u00a0<\/span><\/p><p><img decoding=\"async\" class=\"alignright wp-image-9349\" src=\"https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/blog-5--300x294.png\" alt=\"Schone filterbedweerstand\" width=\"202\" height=\"198\" srcset=\"https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/blog-5--300x294.png 300w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/blog-5--12x12.png 12w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/blog-5-.png 356w\" sizes=\"(max-width: 202px) 100vw, 202px\" \/><\/p><p><span style=\"color: #000000;\"> Hetzij met behulp van een drukindicator, hetzij door eenvoudig het waterpeil in de ontluchtingspijp bovenaan het filter te meten.<\/span><\/p><h3>\u00a0<\/h3><h3><span style=\"color: #000000;\"><strong>Weerstand van het filterbed<\/strong><\/span><\/h3><p><span style=\"color: #000000;\">De filterbedweerstand, H<sub>filterbed<\/sub>kan worden onderverdeeld in twee componenten:<\/span><\/p><p><span style=\"color: #000000;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 H<sub>filterbed<\/sub> = H<sub>0<\/sub> + H<sub>depositie\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/sub>(1)<\/span><\/p><p><span style=\"color: #000000;\">H<sub>0<\/sub> wordt aangeduid als de <em>weerstand tegen schoon bed<\/em>; dit is de hydraulische weerstand ten gevolge van de waterstroming van een schoon filterbed, zonder afzettingen in de pori\u00ebnruimte.<\/span><\/p><p><span style=\"color: #000000;\">De tweede component, H<sub>depositie<\/sub>staat voor de extra filterbedweerstand ten gevolge van afzettingen in de pori\u00ebnruimte van het filtermedium.<\/span><\/p><p><span style=\"color: #000000;\">In deze blog laten we zien hoe de schoonbedweerstand wordt berekend. Als u weet wat de schoonbedweerstand zou moeten zijn, bent u in staat de werkelijk gemeten filterbedweerstand te interpreteren. Als u een waarde meet die dicht bij de schoonbedweerstand ligt, is uw filterbed min of meer schoon. Omgekeerd: als u een waarde meet die hoger is dan de berekende schoonbedweerstand, is het extra drukverlies te wijten aan de aanwezigheid van afzettingen in de pori\u00ebn van het filterbed.<\/span><\/p><p>\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-42b0695 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"42b0695\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-1b84ddb\" data-id=\"1b84ddb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-24aaf92 elementor-widget elementor-widget-text-editor\" data-id=\"24aaf92\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h3><span style=\"color: #000000;\"><strong>Berekening van de schoonbedweerstand H<sub>0<\/sub><\/strong><\/span><\/h3><p><span style=\"color: #000000;\">De schoonbedweerstand H<sub>o<\/sub> (m) is een functie van verschillende parameters en kan worden beschreven met de Carman-Kozeny-vergelijking:<\/span><\/p><p><span style=\"color: #000000;\">Met:<\/span><\/p><p><span style=\"color: #000000;\">v = kinematische viscositeit (m<sup>2<\/sup>\/s)<\/span><\/p><p><span style=\"color: #000000;\">g = gravitatieversnelling (m\/s<sup>2<\/sup>)<\/span><\/p><p><span style=\"color: #000000;\">p<sub>0<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = porositeit (-)<\/span><\/p><p><span style=\"color: #000000;\">v = filtratiesnelheid (m\/s)<\/span><\/p><p><span style=\"color: #000000;\">L = hoogte filterbed (m)<\/span><\/p><p><span style=\"color: #000000;\">d<sub>0<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = specifieke diameter van het filtermedium (m)<\/span><\/p><p><span style=\"color: #000000;\">De specifieke diameter is een kenmerkende diameter die wordt be\u00efnvloed door zowel de korrelgrootte als de uniformiteit en de vorm van de korrels. Dit onderwerp zal in een andere blog worden besproken.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-d30433e\" data-id=\"d30433e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ff25451 elementor-widget elementor-widget-image\" data-id=\"ff25451\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"87\" src=\"https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/Knipse-300x87.png\" class=\"attachment-medium size-medium wp-image-9414\" alt=\"\" srcset=\"https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/Knipse-300x87.png 300w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/Knipse-450x131.png 450w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/Knipse-18x5.png 18w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/Knipse-350x100.png 350w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/Knipse.png 563w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-b2f7942\" data-id=\"b2f7942\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-785722a elementor-widget elementor-widget-text-editor\" data-id=\"785722a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>(2)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-55b9d8a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"55b9d8a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-4906533e\" data-id=\"4906533e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-61e88aa7 elementor-widget elementor-widget-text-editor\" data-id=\"61e88aa7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"color: #000000;\">De kinematische viscositeit hangt alleen af van de watertemperatuur via:<\/span><\/p><p><span style=\"color: #000000;\">Met:<\/span><\/p><p>\u00a0<\/p><p><span style=\"color: #000000;\">T = watertemperatuur (\u00baC)<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-4026680d\" data-id=\"4026680d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-71fa4c71 elementor-widget elementor-widget-image\" data-id=\"71fa4c71\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"406\" height=\"153\" src=\"https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/3-.png\" class=\"attachment-large size-large wp-image-9412\" alt=\"\" srcset=\"https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/3-.png 406w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/3--300x113.png 300w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/3--18x7.png 18w\" sizes=\"(max-width: 406px) 100vw, 406px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-4787c4a3\" data-id=\"4787c4a3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7d8eeec0 elementor-widget elementor-widget-text-editor\" data-id=\"7d8eeec0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>(3)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fb249f2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fb249f2\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-5971ea\" data-id=\"5971ea\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-36941681 elementor-widget elementor-widget-text-editor\" data-id=\"36941681\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"color: #000000;\">Met:<\/span><\/p><p><span style=\"color: #000000;\">Q = toevoerstroom (m<sup>3<\/sup>\/s)<\/span><\/p><p><span style=\"color: #000000;\">n = aantal filters in werking (-)<\/span><\/p><p><span style=\"color: #000000;\">Af = filteroppervlak per filter (m<sup>2<\/sup>)<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-61715f18\" data-id=\"61715f18\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-75f992a elementor-widget elementor-widget-image\" data-id=\"75f992a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"310\" height=\"179\" src=\"https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/4-1.png\" class=\"attachment-large size-large wp-image-9415\" alt=\"\" srcset=\"https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/4-1.png 310w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/4-1-300x173.png 300w, https:\/\/brightwork.nl\/wp-content\/uploads\/2022\/05\/4-1-18x10.png 18w\" sizes=\"(max-width: 310px) 100vw, 310px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-3e7e8b19\" data-id=\"3e7e8b19\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b861c4b elementor-widget elementor-widget-text-editor\" data-id=\"b861c4b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>(4)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e178ae4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e178ae4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b443866\" data-id=\"b443866\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c82886e elementor-widget elementor-widget-text-editor\" data-id=\"c82886e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"color: #000000;\">Laten we een voorbeeld geven om de hydraulische weerstand van het schone bed te kwantificeren, uitgaande van een installatie die wordt gekarakteriseerd in tabel 1:<\/span><\/p><table><tbody><tr><td width=\"302\"><p><span style=\"color: #000000;\"><strong>Parameter <\/strong><\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\"><strong>Symbool<\/strong><\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\"><strong>Waarde<\/strong><\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\"><strong>Waarde gebruikt in<\/strong><\/span><\/p><p><span style=\"color: #000000;\"><strong>vergelijkingen <\/strong><\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">Voerstroom<\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\">Q<\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\">120 m<sup>3<\/sup>\/h<\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\">0.033 m<sup>3<\/sup>\/s<\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">Aantal filters in werking<\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\">n<\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\">2<\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\">2<\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">Filtratiegebied per filter<\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\">A<sub>f<\/sub><\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\">5.0 m<sup>2<\/sup><\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\">5.0 m<sup>2<\/sup><\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">Temperatuur<\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\">T<\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\">8 <sup>o<\/sup>C<\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\">8 <sup>o<\/sup>C<\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">poreusheid<\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\">p<sub>o<\/sub><\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\">40%<\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\">0.40<\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">Filtratiesnelheid<\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\">v<\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\">12,0 m\/h<\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\">0,0033 m\/s<\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">Hoogte filterbed<\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\">L<\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\">1.5 m<\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\">1.5 m<\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">specifieke diameter van het filtermedium<\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\">d<sub>o<\/sub><\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\">1,4 mm<\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\">0.0014 m<\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">Gravitatie versnelling<\/span><\/p><\/td><td width=\"76\"><p><span style=\"color: #000000;\">g<\/span><\/p><\/td><td width=\"104\"><p><span style=\"color: #000000;\">9,81 m\/s<sup>2<\/sup><\/span><\/p><\/td><td width=\"122\"><p><span style=\"color: #000000;\">9,81 m\/s<sup>2<\/sup><\/span><\/p><\/td><\/tr><\/tbody><\/table><p><span style=\"color: #000000;\">De output is aangegeven in de onderstaande tabel:<\/span><\/p><table width=\"604\"><tbody><tr><td width=\"302\"><p><span style=\"color: #000000;\"><strong>Parameter <\/strong><\/span><\/p><\/td><td width=\"85\"><p><span style=\"color: #000000;\"><strong>Vergelijking<\/strong><\/span><\/p><\/td><td width=\"217\"><p><span style=\"color: #000000;\"><strong>Waarde<\/strong><\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">Kinematische viscositeit<\/span><\/p><\/td><td width=\"85\"><p><span style=\"color: #000000;\">(3)<\/span><\/p><\/td><td width=\"217\"><p><span style=\"color: #000000;\">1.38*10<sup>-6<\/sup> m<sup>2<\/sup>\/s<\/span><\/p><\/td><\/tr><tr><td width=\"302\"><p><span style=\"color: #000000;\">Weerstand tegen schoon bed H<sub>o<\/sub><\/span><\/p><\/td><td width=\"85\"><p><span style=\"color: #000000;\">(2)<\/span><\/p><\/td><td width=\"217\"><p><span style=\"color: #000000;\">0,36 m<\/span><\/p><\/td><\/tr><\/tbody><\/table><h3><span style=\"color: #000000;\"><strong>Samenvatting<\/strong><\/span><\/h3><p><span style=\"color: #000000;\">Met de berekeningen kunt u de schoonbedweerstand bepalen in functie van de bedrijfsparameters. Ook kunt u de schoonbedweerstand vergelijken met de werkelijke filterbedweerstand, die u in de praktijk kunt meten. Indien blijkt dat de werkelijke filterbedweerstand veel hoger is dan de schoonbedweerstand, kan uw systeem overbelast of gecompenseerd zijn. Een verdere analyse kan dan aangewezen zijn.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>In een continu zandfilter passeert het water het filterbed in opwaartse richting. De stroming van water door een poreus medium resulteert in een hydraulische drukval. Deze drukval noemen we de filterbedweerstand.<\/p>","protected":false},"author":2,"featured_media":9381,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_canvas","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[40],"tags":[],"class_list":["post-9347","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-continuous-deep-bed-filtration"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Clean filter bed resistance l Blog 5 - Brightwork BV<\/title>\n<meta name=\"description\" content=\"In a continuous sand filter the water passes the filter bed in upward direction. The flow of water through a porous medium results in a hydraulic pressure drop. 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