{"id":8965,"date":"2026-01-13T16:37:36","date_gmt":"2026-01-13T07:37:36","guid":{"rendered":"https:\/\/www.dry-fog.com\/en\/?post_type=cases&#038;p=8965"},"modified":"2026-02-13T11:26:20","modified_gmt":"2026-02-13T02:26:20","slug":"nozzle-environ-003","status":"publish","type":"cases","link":"https:\/\/www.dry-fog.com\/en\/projects-technology\/cases\/nozzle-environ-003\/","title":{"rendered":"Surface Washing Nozzles for Rapid Sand Filters at Water Treatment Plants"},"content":{"rendered":"<section>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Solutions or Products Featured in This Case Study<\/h3>\n<\/div>\n<ul style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:2rem\">\n<div style=\"margin-bottom:0.8rem\"><a href=\"https:\/\/www.dry-fog.com\/dldocuments\/en\/catalog\/423.pdf\" style=\"color: #00a273\">Surface Washing Nozzle<\/a>:<br \/>\nA dedicated nozzle for sand filter beds in water treatment plants. It generates multiple solid stream jets in a radial pattern underwater to remove deposits from the surface of the filter sand.\n<\/div>\n<\/ul>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/01\/nozzle-environ-003_01-1.jpg\" alt=\"\" width=\"824\" height=\"400\" class=\"aligncenter size-full wp-image-5966\" \/><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-top:5rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"float: left;padding-top:1.5rem;padding-left: 2rem\">\n<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/call-1.jpg\" alt=\"\" width=\"330\" height=\"296\" class=\"alignleft size-medium wp-image-5969\" \/>\n<\/div>\n<div style=\"float: right;margin-top: 4rem;margin-right: 3%\">\n<ul style=\"list-style-type: none;margin-left:0rem;font-size: 1.2rem;font-weight: bold;line-height:1.6rem\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/check.svg) no-repeat 0 0;background-size:auto 20px;padding-left: 30px\">\n<li>Not sure which product is right for you?<\/li>\n<\/div>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/check.svg) no-repeat 0 0;background-size:auto 20px;padding-left: 30px\">\n<li>Curious about the total cost?<\/li>\n<\/div>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/check.svg) no-repeat 0 0;background-size:auto 20px;padding-left: 30px\">\n<li>Wondering where to start?<\/li>\n<\/div>\n<div style=\"margin-bottom:0.8rem;font-size: 0.8rem;font-weight: bold;padding-left: 30px\">\n<li>We\u2019re here to help \u2013 reach out with any questions.<\/li>\n<\/div>\n<\/ul>\n<div style=\"text-align:center;margin-top:2rem;margin-bottom: 2rem\">\n<a style=\"margin-bottom:1rem;margin-left:2rem;justify-content: center;align-items: center;padding: 0.5rem 4rem;color: #fff;font-weight: 500;font-size:1.2rem;width:auto;background: #0C9B6F;border-radius: 30px\" href=\"https:\/\/www.dry-fog.com\/en\/contact\/\" target=\"_blank\" rel=\"noopener\">Contact Us<\/a>\n<\/div>\n<\/div>\n<div style=\"clear:both\"><\/div>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-top:0rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Surface Washing Nozzles for Rapid Sand Filters<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">IKEUCHI spray nozzles are used across a wide range of industries. In this case study, we introduce a <span style=\"font-weight:bold\">surface washing nozzle used in rapid sand filters at a water treatment plant<\/span>, helping improve operational efficiency.<\/p>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Overview of the Water Treatment Plant Process<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">A water treatment plant consists of multiple treatment basins (tanks), and the rapid sand filter basin is one of them. In a typical treatment process, water passes through several steps in sequence before being supplied as clean water.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/01\/nozzle-environ-003_02e.jpg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/><\/p>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">What Is a Rapid Sand Filter Basin?<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">A rapid sand filter basin further purifies water after turbidity has been reduced in the upstream coagulation and sedimentation step.<br \/>\nBy passing the water through layers of sand and gravel, the basin removes fine suspended particles. Its key feature is its ability to treat large volumes of water efficiently in a short time.\n<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/01\/nozzle-environ-003-main-PC.jpg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/01\/nozzle-environ-003_03e.jpg\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/><\/p>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">What Is Surface Washing?<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">Surface washing is a cleaning step that efficiently <span style=\"font-weight:bold\">removes deposits accumulated on the surface of the filter sand<\/span>. As filtration continues, contaminants build up on the sand surface, which reduces filtration performance. To prevent this, <span style=\"font-weight:bold\">the filter sand is washed on a regular basis to minimize clogging and maintain stable capacity<\/span>.<\/span><\/p>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">About the Surface Washing Nozzle<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">The nozzle used in this process is a surface washing nozzle.<br \/>\nInstalled at the end of the piping, it generates <span style=\"font-weight:bold\">multiple solid stream jets in a radial pattern<\/span> underwater. These jets dislodge and remove deposits from the surface of the filter sand, helping prevent buildup.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2026\/01\/nozzle-environ-003_04.png\" alt=\"\" width=\"820\" class=\"aligncenter size-full wp-image-6304\" \/><\/p>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">What Is Backwashing?<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">The contaminants loosened during surface washing temporarily remain suspended in the water, but they are then removed by backwashing. In backwashing, water and\/or air is introduced to push out the water in the basin\u2014along with the suspended contaminants\u2014so it can be discharged outside the basin. Performing this process regularly maintains the filtration capacity of the filter media and supports stable operation.<\/p>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Surface Washing Nozzles for Stable Filtration Performance<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">Proper surface washing\u2014used together with backwashing\u2014is a critical element for long-term, stable operation of rapid sand filters.<br \/>\nIKEUCHI surface washing nozzles <span style=\"font-weight:bold\">effectively remove deposits from the filter bed surface, contributing to higher operating efficiency at water treatment facilities<\/span>.<br \/>\nFor more efficient surface washing, please contact us. We will recommend the best-suited product and technical solution for your application.<\/p>\n<\/div>\n<\/section>\n","protected":false},"featured_media":0,"template":"","cat_cases":[87],"tag_cases":[416,542,581],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/cases\/8965"}],"collection":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/cases"}],"about":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/types\/cases"}],"wp:attachment":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/media?parent=8965"}],"wp:term":[{"taxonomy":"cat_cases","embeddable":true,"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/cat_cases?post=8965"},{"taxonomy":"tag_cases","embeddable":true,"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/tag_cases?post=8965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}