{"id":1151,"date":"2025-10-17T17:14:04","date_gmt":"2025-10-17T09:14:04","guid":{"rendered":"https:\/\/yrdactivatedcarbon.com\/?post_type=product&#038;p=1151"},"modified":"2025-12-03T17:39:07","modified_gmt":"2025-12-03T09:39:07","slug":"walnut-shell-filter-media","status":"publish","type":"product","link":"https:\/\/yrdactivatedcarbon.com\/bn\/product\/walnut-shell-filter-media\/","title":{"rendered":"Walnut Shell Filter Media"},"content":{"rendered":"<h2 dir=\"auto\">Physical Properties<\/h2>\n<p dir=\"auto\">The following table outlines the key physical characteristics of walnut shell filter media, based on standard industry data.<\/p>\n<table>\n<thead>\n<tr>\n<th data-col-size=\"lg\">Property<\/th>\n<th data-col-size=\"md\">Value\/Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td data-col-size=\"lg\">Specific Gravity<\/td>\n<td data-col-size=\"md\">1.2 &#8211; 1.4<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Bulk Density<\/td>\n<td data-col-size=\"md\">0.85 g\/cm\u00b3 (approximate)<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Hardness (Mohs Scale)<\/td>\n<td data-col-size=\"md\">2.5 &#8211; 3.0<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Grain Shape<\/td>\n<td data-col-size=\"md\">Angular, multi-faceted<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Color<\/td>\n<td data-col-size=\"md\">Light brown<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Moisture Content<\/td>\n<td data-col-size=\"md\">\u2264 11% by weight<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">pH Value<\/td>\n<td data-col-size=\"md\">7.5 (neutral)<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Charring Temperature<\/td>\n<td data-col-size=\"md\">243\u00b0C (470\u00b0F)<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Attrition Rate<\/td>\n<td data-col-size=\"md\">&lt; 5% per year<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 dir=\"auto\">Chemical Composition<\/h2>\n<p dir=\"auto\">Walnut shell filter media is composed of natural organic compounds, ensuring it is non-toxic, biodegradable, and chemically inert. The typical chemical makeup is as follows:<\/p>\n<table>\n<thead>\n<tr>\n<th data-col-size=\"lg\">Component<\/th>\n<th data-col-size=\"md\">Percentage (%)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td data-col-size=\"lg\">Nitrogen<\/td>\n<td data-col-size=\"md\">0.10<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Cellulose<\/td>\n<td data-col-size=\"md\">40 &#8211; 60<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Lignin<\/td>\n<td data-col-size=\"md\">20 &#8211; 30<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Toluene Solubility<\/td>\n<td data-col-size=\"md\">0.5 &#8211; 1.0<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Methoxyl<\/td>\n<td data-col-size=\"md\">6.5<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Chlorine<\/td>\n<td data-col-size=\"md\">0.10<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"lg\">Ash<\/td>\n<td data-col-size=\"md\">\u2264 1.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a dir=\"auto\" style=\"display: inline-block; padding: 12px 28px; border-radius: 999px; background: #0067ff; color: #ffffff; font-size: 20px; font-weight: 600; text-decoration: none; cursor: pointer; \" href=\"mailto:info@yrdcarbon.com\">Get free quality samples for testing<\/a><\/p>\n<h2 dir=\"auto\">Available Particle Sizes<\/h2>\n<p dir=\"auto\">Walnut shell filter media is available in various granular sizes to suit specific filtration requirements. Sizes are typically specified in U.S. Mesh or metric equivalents. Common sizes include:<\/p>\n<ul dir=\"auto\">\n<li>6\/10 Mesh (3.36 &#8211; 2.00 mm)<\/li>\n<li>8\/12 Mesh (2.38 &#8211; 1.68 mm)<\/li>\n<li>12\/20 Mesh (1.68 &#8211; 0.84 mm)<\/li>\n<li>20\/30 Mesh (0.84 &#8211; 0.59 mm)<\/li>\n<li>30\/60 Mesh (0.59 &#8211; 0.25 mm)<\/li>\n<\/ul>\n<p dir=\"auto\">Custom sizes can be provided upon request. For water filtration applications, 12\/20 or 12\/16 Mesh is commonly recommended for optimal performance in removing hydrocarbons and solids.<\/p>\n<h2 dir=\"auto\">Performance Data<\/h2>\n<p dir=\"auto\">Walnut shell filter media demonstrates high efficiency in deep-bed filtration systems. Key performance metrics include:<\/p>\n<ul dir=\"auto\">\n<li><strong>Suspended Solids Removal<\/strong>: 95% &#8211; 99% (effective down to 5 microns)<\/li>\n<li><strong>Insoluble Hydrocarbons Removal<\/strong>: 90% &#8211; 99%<\/li>\n<li><strong>Oil Discharge Levels<\/strong>: Typically \u2264 5 ppm<\/li>\n<li><strong>Filtration Flux Rate<\/strong>: 10 &#8211; 12 gpm\/ft\u00b2 (higher than sand or anthracite filters)<\/li>\n<li><strong>Backwash Efficiency<\/strong>: Requires 0.5% &#8211; 1% of throughput volume; media regenerates fully without chemicals or air sparging<\/li>\n<li><strong>Service Life<\/strong>: Media lasts the lifetime of the filter with minimal replacement (5% &#8211; 10% annually if needed)<\/li>\n<li><strong>Filtering Speed<\/strong>: 25 &#8211; 30 m\/h<\/li>\n<li><strong>Backwashing Strength<\/strong>: 6 &#8211; 7 L\/s\u00b7m\u00b2<\/li>\n<\/ul>\n<p dir=\"auto\">These parameters ensure reliable operation with &gt;99% uptime in demanding environments.<\/p>\n<h2 dir=\"auto\">Applications<\/h2>\n<p dir=\"auto\">Walnut shell filter media is versatile and suitable for a range of water treatment scenarios, including:<\/p>\n<ul dir=\"auto\">\n<li>Produced water treatment in oil and gas industries<\/li>\n<li>Industrial wastewater filtration for removing oil, grease, and suspended solids<\/li>\n<li>Groundwater remediation and surface water polishing<\/li>\n<li>Cooling water recycling in manufacturing and power generation<\/li>\n<li>Municipal and petrochemical liquid treatment for suspended solids, oily residues, ash, and metallic hydroxides<\/li>\n<\/ul>\n<p dir=\"auto\">It is compatible with multimedia filters, sand filters, and activated carbon systems, enhancing overall filtration efficiency.<\/p>\n<h2 dir=\"auto\">Key Advantages<\/h2>\n<ul dir=\"auto\">\n<li><strong>High Oil Absorption<\/strong>: 2-3 times greater than traditional sand media, preventing clogging and mudball formation.<\/li>\n<li><strong>Durability and Low Maintenance<\/strong>: Angular shape and high strength result in low breakdown; media can be reclaimed and reused multiple times.<\/li>\n<li><strong>Environmental Benefits<\/strong>: Natural, biodegradable, and non-toxic; reduces chemical usage and waste.<\/li>\n<li><strong>Cost Efficiency<\/strong>: Higher throughput reduces equipment size and operational costs; efficient backwashing minimizes water consumption.<\/li>\n<\/ul>\n<h2 dir=\"auto\">Certifications and Standards<\/h2>\n<p dir=\"auto\">Walnut shell filter media complies with relevant industry standards to ensure quality and safety:<\/p>\n<ul dir=\"auto\">\n<li>AWWA B100 for granular filter material quality<\/li>\n<li>GSA Specification AA-1722 Type 2<\/li>\n<li>MIL-G-5634 Type 3<span lang=\"zh-CN\"><span data-immersive-translate-translation-element-mark=\"1\">\u00a0\u00a0<\/span><span data-immersive-translate-translation-element-mark=\"1\">MIL-G-5634 3\u00a0<\/span><\/span><\/li>\n<li>NSF\/ANSI certified for drinking water applications<\/li>\n<\/ul>\n<p><a dir=\"auto\" style=\"display: inline-block; padding: 12px 28px; border-radius: 999px; background: #0067ff; color: #ffffff; font-size: 20px; font-weight: 600; text-decoration: none; cursor: pointer; \" href=\"mailto:info@yrdcarbon.com\">Get free quality samples for testing<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p><a dir=\"auto\" style=\"display: inline-block; padding: 12px 28px; border-radius: 999px; background: #0067ff; color: #ffffff; font-size: 20px; font-weight: 600; text-decoration: none; cursor: pointer; \" href=\"mailto:info@yrdcarbon.com\">Get free quality samples for testing<\/a><\/p>\n<p dir=\"auto\">Walnut shell filter media is a natural, high-performance filtration material derived from crushed black walnut shells. It is widely used in water treatment applications for its exceptional ability to remove suspended solids and insoluble hydrocarbons without the need for chemical additives.<\/p>\n<p dir=\"auto\">This media offers superior durability, low attrition rates, and environmental sustainability, making it an ideal choice for industrial wastewater, produced water in oil and gas, and general water polishing processes.<\/p>\n<p dir=\"auto\">Key advantages include high oil absorption capacity, efficient backwashing, and long service life, ensuring cost-effective operation and compliance with industry standards.<\/p>","protected":false},"featured_media":1395,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[32],"product_tag":[],"class_list":{"0":"post-1151","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-filter-materials-series","7":"desktop-align-left","8":"tablet-align-left","9":"mobile-align-left","11":"first","12":"instock","13":"featured","14":"shipping-taxable","15":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Walnut Shell Filter Media<\/title>\n<meta name=\"description\" content=\"Walnut shell filter media for oil-water separation and activated carbon polishing in industrial filtration systems. 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