The bales come in stacked like hay.<\/p>\n
Burgundy, beige, grey and brown, pressed into blocks and trucked from houses and offices across the Southwest.<\/p>\n
Every block is floor covering that somebody walked on for fifteen years and then tore up<\/strong>.<\/p>\n Inside a building in west Phoenix it gets shredded, washed and split into three separate materials<\/strong>, each sold to a different industry.<\/p>\n Two of those sales are easy.<\/p>\n The third is the heaviest thing<\/strong> in the bale.<\/p>\n A carpet is not one material. It is four of them glued into a sandwich<\/strong>.<\/p>\n The face fiber you walk on, usually nylon or polyester, is stitched through a woven polypropylene backing<\/strong>. Latex adhesive goes across the back of that to lock the tufts so they cannot be pulled out. And packed into the latex is a heavy dose of ground limestone powder, which adds body and weight and keeps the thing lying flat.<\/p>\n Every one of those choices is correct for a floor.<\/p>\n It has to take fifteen years of shoes, resist stretching, and stay flat. A carpet that came apart easily would be a bad carpet.<\/p>\n And every one of those choices is wrong for a recycler<\/strong>. Lift the thing and shred it and you have a mixed pile of tangled fiber, chalky dust and sticky rubber fragments.<\/p>\n Nobody buys a mixed pile<\/strong>.<\/p>\n The instinct with any plastic is to melt it. Melt a bonded composite and all you get is a contaminated melt<\/strong>, worth less than the pile you started with.<\/p>\n So the Phoenix line uses water instead.<\/p>\n The carpet is shredded first, then washed, and sorted by density rather than by force. Nylon, polypropylene and mineral powder each behave differently in moving water, and that difference lets three clean products leave a building that took in one dirty one.<\/p>\n There is a catch, and it is a large one. The plant is built around Nylon 6<\/strong>, the one carpet polymer that can be chemically unzipped back to its raw ingredient.<\/p>\n Carpet faced with polyester, or with Nylon 6,6, does not fit that route at all. Much of it still goes in the ground<\/strong>.<\/p>\n The facility covers 116,000 square feet<\/strong> in west Phoenix. It opened in December 2018 as the first of its kind in the country.<\/p>\n It was built to take about 35 million pounds of old carpet a year, which is roughly 17,500 tons<\/strong>.<\/p>\n The recovered Nylon 6 travels furthest, leaving as pellets bound for a plant in Slovenia, where it is broken back to its building block and rebuilt into new fiber. The polypropylene goes to injection molders. The mineral powder goes to road builders and cement makers.<\/p>\n Against national disposal, all of that is a rounding error. Federal figures put carpet and rug generation at 3.37 million tons, of which 310,000 tons<\/strong> were recycled and about 2.5 million went straight into landfill.<\/p>\n Calcium carbonate is not a trace ingredient in a carpet. It is 30 to 40 percent of what the thing weighs, which makes it the single largest<\/strong> component by mass.<\/p>\n The head of the industry’s carpet recovery group put it plainly. Somewhere around 30 to 40 percent of a carpet is calcium carbonate, he said, and it has no value<\/a> in the marketplace.<\/p>\n Then comes the number that settles the argument. His organization pays 17 cents<\/strong> a pound to have the stuff taken away and reused.<\/p>\n That is not a processing cost. It is money going out the door<\/strong> to make the heaviest third of a carpet somebody else’s problem<\/strong>.<\/p>\n Which is the same trap that catches every layered product built for service rather than for disassembly, including the fused sofas<\/a> that make up the bulk of discarded furniture.<\/p>\n The powder is not useless. In road base and concrete it substitutes for quarried limestone filler, which means something that spent fifteen years under shoes ends up doing structural work underground.<\/p>\n Call that what it is, though. It is plain downcycling<\/strong>, and it works only while a road crew is closer than a landfill.<\/p>\n The policy gap is stark. California, the one state with a producer funded<\/strong> stewardship program, hit a record 38.5 percent recycling rate in 2024, against a national figure that has sat near nine percent for fifteen years.<\/p>\n The other route is to stop building the problem. A floor covering designed to be pulled apart, with the layers held mechanically rather than glued, would arrive at a plant like this as parts<\/strong> rather than as a puzzle, the way a turf field<\/a> arrives as 220 tons of which only 20 are wanted.<\/p>\n Carpet was not designed that way. Until the heaviest third of it is worth more than the cost of moving it<\/a>, the sorting line will keep running ahead of the market waiting at the other end.<\/p>\n","protected":false},"excerpt":{"rendered":" The bales come in stacked like hay. Burgundy, beige, grey and brown, pressed into blocks and trucked from houses and offices across the Southwest. Every block is floor covering that somebody walked on for fifteen years and then tore up. Inside a building in west Phoenix it gets shredded, washed and split into three separate materials, each … Read more<\/a><\/p>\n","protected":false},"author":28,"featured_media":34246,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_focus_keyword":"116 000 square","rank_math_title":"A worn carpet is 30 to 40 percent chalky mineral filler by weight, and the industry group that has to find a home for the calcium carbonate pays 17 cents a pound to make it go away","rank_math_description":"A Phoenix plant tears old carpet into nylon, polypropylene and calcium carbonate \u2014 three separate buyers, three industries. The latex binder that held it","footnotes":""},"categories":[10],"tags":[],"class_list":["post-34156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/34156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/comments?post=34156"}],"version-history":[{"count":0,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/34156\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media\/34246"}],"wp:attachment":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media?parent=34156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/categories?post=34156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/tags?post=34156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Why a rug is built never to come apart<\/h2>\n
What water does that heat cannot<\/h2>\n
The plant, and what it is up against<\/h2>\n
The part of the load nobody wants<\/h2>\n
What changes when a carpet ends up in a road<\/h2>\n