{"id":741,"date":"2025-09-15T12:22:38","date_gmt":"2025-09-15T10:22:38","guid":{"rendered":"https:\/\/staging.filtrontec.de\/?post_type=projekt&#038;p=741"},"modified":"2026-02-23T11:27:10","modified_gmt":"2026-02-23T10:27:10","slug":"eight-air-filters-in-the-central-wan-chai-bypass-tunnel","status":"publish","type":"projekt","link":"https:\/\/filtrontec.de\/en\/projekt\/acht-luftfilter-im-tunnel-central-wan-chai-bypass\/","title":{"rendered":"Eight air filters in the Central-Wan Chai Bypass tunnel"},"content":{"rendered":"<p>The Central - Wan Chai Bypass tunnel is a central component of the strategically important road link on the north side of Hong Kong Island. The tunnel is 3.7 km long, has two carriageways with three lanes each and runs mostly under the water surface.<\/p>\n\n\n\n<p>In June 2014, FILTRONtec was awarded the contract for the planning, delivery and installation of eight air filtration systems as a subcontractor of the Hong Kong Special Administrative Region government. The systems filter the entire exhaust air volume of 1,500 m\u00b3\/s from the tunnel and, thus, ensure a significant improvement in air quality.<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-flex wp-container-core-group-is-layout-e0ac331c wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20)\">\n<a class=\"gb-text button-primary\" href=\"https:\/\/www.news.gov.hk\/eng\/2018\/12\/20181227\/20181227_173309_822.html?type=ticker\" target=\"_blank\" rel=\"noopener\">Announcement of tunnel opening<\/a>\n\n\n\n<a class=\"gb-text button-primary\" href=\"https:\/\/www.hyd.gov.hk\/en\/our_projects\/road_projects\/6579th\/index.html\" target=\"_blank\" rel=\"noopener\">Project website<\/a>\n<\/div>\n\n\n\n<div class=\"info-box gb-element-3ead864f\">\n<div class=\"wp-block-cloudcatch-splide-carousel wp-block-splide-carousel__container\"><figure class=\"wp-block-splide-carousel splide\" data-splide=\"{&quot;type&quot;:&quot;slide&quot;,&quot;perPage&quot;:1,&quot;speed&quot;:400,&quot;gap&quot;:&quot;0px&quot;,&quot;fixedWidth&quot;:&quot;&quot;,&quot;autoWidth&quot;:false,&quot;perMove&quot;:1,&quot;direction&quot;:&quot;ltr&quot;,&quot;fixedHeight&quot;:&quot;&quot;,&quot;height&quot;:&quot;&quot;,&quot;arrows&quot;:true,&quot;pagination&quot;:true,&quot;autoplay&quot;:false,&quot;interval&quot;:&quot;5000&quot;,&quot;pauseOnHover&quot;:true,&quot;mediaQuery&quot;:&quot;max&quot;,&quot;breakpoints&quot;:{}}\" data-splide-extensions=\"{&quot;autoScroll&quot;:false,&quot;urlHash&quot;:false,&quot;grid&quot;:false}\"><div class=\"wp-block-splide-carousel__track splide__track\"><div class=\"wp-block-splide-carousel__list splide__list\">\n<div class=\"wp-block-cloudcatch-splide-carousel-item wp-block-splide-carousel__slide splide__slide\">\n<div>\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d3b44a9a623&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d3b44a9a623\" class=\"wp-block-image size-large wp-lightbox-container\" style=\"margin-top:0;margin-bottom:0\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"678\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180313_Elektrofilter-EVB-1024x678.jpg\" alt=\"\" class=\"wp-image-1137\" style=\"aspect-ratio:3\/2;object-fit:cover\" srcset=\"https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180313_Elektrofilter-EVB-1024x678.jpg 1024w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180313_Elektrofilter-EVB-1536x1017.jpg 1536w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180313_Elektrofilter-EVB-2048x1356.jpg 2048w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180313_Elektrofilter-EVB-300x199.jpg 300w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180313_Elektrofilter-EVB-768x509.jpg 768w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180313_Elektrofilter-EVB-18x12.jpg 18w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180313_Elektrofilter-EVB-800x530.jpg 800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewbox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"gb-text figcaption\">Exemplary particle filter (installed in East Ventilation Building)<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-cloudcatch-splide-carousel-item wp-block-splide-carousel__slide splide__slide\">\n<div>\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d3b44a9af6b&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d3b44a9af6b\" class=\"wp-block-image size-large wp-lightbox-container\" style=\"margin-top:0;margin-right:0;margin-bottom:0;margin-left:0\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180320_Gasfilterauslass-WVB-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1138\" style=\"aspect-ratio:3\/2;object-fit:cover\" srcset=\"https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180320_Gasfilterauslass-WVB-1-1024x768.jpg 1024w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180320_Gasfilterauslass-WVB-1-300x225.jpg 300w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180320_Gasfilterauslass-WVB-1-768x576.jpg 768w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180320_Gasfilterauslass-WVB-1-1536x1152.jpg 1536w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180320_Gasfilterauslass-WVB-1-2048x1536.jpg 2048w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180320_Gasfilterauslass-WVB-1-16x12.jpg 16w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/20180320_Gasfilterauslass-WVB-1-800x600.jpg 800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewbox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"gb-text figcaption\">Exemplary gas filter (installed in West Ventilation Building)<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-cloudcatch-splide-carousel-item wp-block-splide-carousel__slide splide__slide\">\n<div>\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d3b44a9b795&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d3b44a9b795\" class=\"wp-block-image size-full wp-lightbox-container\" style=\"margin-top:0;margin-right:0;margin-bottom:0;margin-left:0\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/Leitbleche.jpg\" alt=\"Exemplary guide vanes for the airflow (installed in East Ventilation Building)\" class=\"wp-image-1522\" style=\"aspect-ratio:3\/2;object-fit:cover\" srcset=\"https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/Leitbleche.jpg 800w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/Leitbleche-300x200.jpg 300w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/Leitbleche-768x512.jpg 768w, https:\/\/filtrontec.de\/wp-content\/uploads\/2025\/09\/Leitbleche-18x12.jpg 18w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewbox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"gb-text figcaption\">Exemplary guide vanes for the airflow (installed in East Ventilation Building)<\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/figure><\/div>\n<\/div>","protected":false},"featured_media":742,"parent":0,"template":"","meta":{"_acf_changed":true,"inline_featured_image":false},"class_list":["post-741","projekt","type-projekt","status-publish","has-post-thumbnail","hentry"],"acf":{"ort__subheader":"Hongkong, China","auftraggeber":"Leighton Joint Venture","auftragsvergabe":"06.2014","uebergabe":"12.2018","tunneleroffnung":"01.2019","luftvolumenstrom_feinstaubfilter":"Partikelfilter: 1.500 m\u00b3\/s <br>Gasfilter: 50 m\u00b3\/s"},"_links":{"self":[{"href":"https:\/\/filtrontec.de\/en\/wp-json\/wp\/v2\/projekt\/741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/filtrontec.de\/en\/wp-json\/wp\/v2\/projekt"}],"about":[{"href":"https:\/\/filtrontec.de\/en\/wp-json\/wp\/v2\/types\/projekt"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/filtrontec.de\/en\/wp-json\/wp\/v2\/media\/742"}],"wp:attachment":[{"href":"https:\/\/filtrontec.de\/en\/wp-json\/wp\/v2\/media?parent=741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}