Drip Tape Recycling Process: From Soil-Soaked Tape to Premium PE Pellets

The drip tape recycling process turns used drip irrigation tape, thin, mud-caked polyethylene that piles up at the end of every growing season, into clean plastic pellets a factory can run again. On paper it’s simple: collect, shred, wash, dry, melt, and pelletize. In practice, the hard part isn’t the plastic at all. It’s the dirt that come with it. This guide walks through each stage, the equipment behind it, what the recovered pellets are worth, and why most used drip tape still never gets recycled.

The Drip Tape Waste Problem

Drip tape is one of the most efficient irrigation tools a grower has, delivering water straight to the root zone and cutting field water use sharply compared with flood irrigation. Trouble comes at the end of the season. Thin-wall tape, the 6–8 mil grades many vegetable growers buy, is often pulled up after a single crop, leaving long, tangled ribbons of dirty plastic at the edge of every field.

Volumes add up fast. A single acre under drip can leave behind hundreds of pounds of used tape per season, and a mid-sized operation generate tons of it. Burning it releases carbon and turns recyclable plastic waste into pollution; burying or stockpiling it carries legal and environmental risk in most jurisdictions. Yet recycling lags badly: industry estimates put the share of U.S. agricultural plastic that actually get recycled at less than 15%, according to reporting from Resource Recycling. Recyclable plastic, broken collection system: that’s the whole problem.

That gap is the whole story. Understanding the drip tape recycling process means understanding why a technically easy material is economically hard to recover, and what a recycling line has to do to close that gap.

What Drip Tape Is Made Of (and Why It Matters for Recycling)

Before you can recycle drip tape, you’ve to know what polymer you’re holding. Get the resin wrong and you contaminate a whole batch; get it right and the material drop cleanly into a polyethylene recycling stream.

What type of plastic is drip tape made of?

Drip tape is made almost entirely of polyethylene (PE)predominantly low-density and linear low-density polyethylene (LDPE/LLDPE), with some heavier-wall products using HDPE blends. PE is chosen because it’s flexible, weather-resistant, and cheap, and because it extrudes easily into thin tube with a molded or labyrinth emitter running down the seam. To a recycler this is good news: PE is one of the most widely processed mechanical-recycling resins, with established end markets for the regranulate.

Wall thickness is the spec that drive both irrigation life and recycling behavior. Drawing on guidance from sources such as Delaware State University’s drip irrigation extension materials, tape is sold in a tight band of gauges and pressures:

Operating pressures are low, roughly 4 to 15 PSI, which is why the wall can be so thin. In recycling, that thinness is the catch: a truckload of 6 mil tape is mostly air and dirt, not plastic. A 15 mil heavy-wall product yields far more granulate per ton handled. This is also why a dedicated drip tape recycling line is configured differently from a rigid-plastics line, it has to move large volumes of light, floppy material without choking.

Can You Recycle Drip Tape? The Honest Answer

Can you recycle drip tape?

Yes, used drip tape can be mechanically recycled into polyethylene pellets, but not through your curbside bin. It needs a purpose-built recycling line or a dedicated agricultural-plastics program. Barriers are never the chemistry of the plastic; they’re contamination, collection, and the economics of handling a bulky, dirty, low-value stream.

Curbside and municipal recycling reject drip tape for the same reasons they reject plastic bags and film: it wraps around sorting equipment, it arrives filthy, and there’s no clean local market for it. So recycling happens in one of two places, a specialized recycler running a film/tape washing-and-pelletizing line, or a manufacturer-run take-back program that collects, processes, and feeds the regranulate back into new product. Research on agricultural-plastics management published through the U.S. National Library of Medicine stresses this same point: the limiting factors for ag-film recovery are logistics and contamination, not recyclability.

The Drip Tape Recycling Process, Step by Step

Mechanical recycling of drip tape follows a consistent sequence, from shredding through to pelletizing. Each stage exists to solve a specific problem: size, dirt, water, or melt quality. Here’s the full chain from field to pellet.

Two design choices shape how these steps are arranged. With lightly soiled, dry tape, a cutter-compactor integrated pelletizer can combine size reduction, drying, and feeding in one unit, which suits clean film well. For tape that arrives wet and dirty, the usual case, a wash line ahead of a two-stage pelletizer is the more reliable route, because it removes contamination before it reaches the melt. Kitech configures lines around the second pattern for field-collected tape, since real-world feedstock is rarely clean enough to skip washing. You can see how the wet route compares to dry processing in our guide to hot wash vs cold wash plastic recycling.

Why Contamination Is the Hardest Part: The Soil-Weight Trap

Here’s the single most important thing to understand about recycling drip tape, and the part almost every machinery brochure skips. When you buy or build a recycling line, you instinctively size it by plastic, tons of PE per hour. But field-collected tape doesn’t arrive as plastic. It arrives as plastic plus a very large amount of dirt.

Peer-reviewed work backs this up with hard numbers. A 2024 review of agricultural-mulch recycling in the journal Circular Agricultural Systems reports recovered films carrying 30–80% surface contamination, mostly soil and plant debris. A 2025 study from American University on the plastic footprint of U.S. agriculture goes further, finding that mulch films at end of life can be 60–80% adhered soil by total masswhich, the authors note, is exactly what drives up the cost of cleaning and recycling these plastics.

This is the Soil-Weight Trap. If half of every incoming ton is dirt, then your wash line, not your shredder or extruder, sets the true capacity of the operation. A bigger shredder just produces dirty flake faster. Washing is where soil actually leaves, where water and energy get consumed, where wastewater and sludge are generated, and where final pellet quality is decided. Size the line by what the wash section can clean per hour, and you’ll get realistic throughput. Size it by extruder output, and you’ll be disappointed every day.

That contamination load is also why float-sink separation is non-negotiable for tape: abrasive sand left in the stream chews through screws and screens and shows up as grit and weak spots in the pellet. Heavy water use, in turn, is why serious operations run a closed-loop water system rather than dumping wash water.

“People ask us how big a shredder they need. The better question is how dirty the tape is. On field-collected drip tape, the washing and drying section is the bottleneck and the cost center, the extruder is the easy part. We size every line from the wash stage backward.”

Equipment in a Drip Tape Recycling Line

A complete drip tape recycling machine setup is really a sequence of machines, each matched to one stage of the process. Exact configuration depends on contamination level and volume, but a wet-route line for field tape generally includes the following:

Several of these stages have dedicated machines worth understanding on their own: the plastic film shredder that handles the size-reduction step, the PE agricultural film washing system that does the heavy cleaning, the plastic squeezing dryer that drives off moisture, and the film pelletizing machine that forms the final granulate. Because drip tape sits within the broader category of agricultural film, the same line architecture overlaps heavily with a general agricultural film recycling line.

What Recycled Drip Tape Becomes

What happens to recycled drip tape?

Recycled drip tape becomes black polyethylene regranulate, and that pellet color shape where it goes next. Because the tape is usually dark and the recovered melt come out black, the pellets are best reused in products where color doesn’t matter, which still covers a surprisingly wide range of end markets.

Its highest-value loop run back into agriculture: regranulate going into new drip line and irrigation tubing. Beyond that, recovered PE feeds into bin liners and carrier bags, flexible packaging, plastic pallets, drainage pipe, and plastic lumber. Manufacturer take-back programs show this circular economy in action, used tubing collected, washed, pelletized, and blended back into new product lines, sometimes alongside landscape and industrial applications.

Quality is the gatekeeper. Properties that decide where a batch can go include melt flow index (MFI consistency), residual ash content from leftover soil, moisture, and bulk density. Tape that was washed properly produces pellets clean enough for demanding converters; tape that skipped washing produce gritty, inconsistent regranulate that only the lowest-value applications will accept. This is why the wash stage, not the extruder, ultimately determines the price you can sell at, a point we break down further in our guide to recycled pellet quality grades. It’s worth being honest that some of this is downcycling: not every batch return to food-contact-grade or pressure-rated use, and that’s normal for post-consumer agricultural film.

How Farmers Can Recycle Used Drip Tape

Knowing the process is one thing; getting your tape into it’s another. Growers have three practical routes, and which one fits depend almost entirely on volume and location.

• ✔Manufacturer take-back programs. Some irrigation makers run regional collection. These are convenient but conditional, they typically require the material to be a specific brand of thinwall PE tape, baled and free of trash, metal, rocks, and excessive dirt, with high minimum loads (one major program sets a 20,000 lb minimum and operates only in select states).
• ✔Regional agricultural-plastics recyclers. Independent recyclers running film/tape lines will take baled tape, sometimes via county or co-op aggregation points that pool material from many small farms.
• ✔On-site processing. Large operations and cooperatives with steady tonnage can justify their own recycling line, turning a disposal cost into a pellet revenue stream.

An uncomfortable reality, and a big reason recovery rates stay below 15%, is that most individual farms generate too little tape to meet program minimums on their own. Aggregation, pooling tape across farms or through a co-op, is usually what makes collection viable. Prepping the material well also matters: keep tape separate from plastic mulch and other plastics, shake or knock off loose soil before baling, and remove non-PE hardware and metal ties, since contamination is exactly what gets loads rejected.

Is drip tape biodegradable?

No. Standard drip tape is polyethylene and isn’t biodegradable, left in a field or landfill it can persist for decades. This is a common point of confusion because biodegradable options (PLA/PBAT blends) do exist for some agricultural mulch films. Those materials are designed to be tilled into soil, not to hold water under pressure, so they aren’t a substitute for drip tape. With tape, recycling, not biodegradation, is the realistic end-of-life path.

The Economics of Recycling Drip Tape

Whether recycling makes sense comes down to three variables: how much tape you generate, how contaminated it’s, and how thick it’s. This isn’t a “recycle or not” question in the abstract, it’s which route gives the best result for your situation.

Cost drivers on a recycling line all trace back to the Soil-Weight Trap: water and energy for washing, wear parts abraded by grit, drying energy, and wastewater handling. On the value side sit the pellet, black PE regranulate sells into the markets above, and avoided landfill tipping fees count too. On a serious build, the honest way to size the decision is to model wash-line throughput and pellet yield against your actual feedstock, which is why our drip tape recycling operating cost estimator and line sizing calculator start from contamination and volume rather than headline extruder output. To get broader cost context across washing systems, see our plastic washing line cost guide.

Industry Outlook: Where Ag-Plastic Recycling Is Heading

That headline number, under 15% of U.S. agricultural plastic recycled, is usually framed as a failure. To anyone building recycling capacity, it’s the opposite: it’s the size of the open market. Feedstock already exists, in the millions of pounds, sitting at field edges every season.

Market direction. Demand for recovered film is climbing. Resource Recycling reported in 2026 that the agricultural sector holds large untapped potential as a recycling feedstock, and broader film-recycling markets are growing, the multi-layer film recycling market alone is projected to expand at roughly a 9% compound annual rate over the coming decade. As virgin-resin buyers face recycled-content targets, clean PE regranulate from sources like drip tape gains value.

Policy and funding. Public money is starting to de-risk collection, the part of the chain that has always been weakest. California’s CalRecycle agency, for example, has awarded multi-million-dollar grants to expand closed-loop dripline recycling, including a roughly $2 million grant to fund processing of thousands of additional tons of used irrigation tubing per year. Expect more extended-producer-responsibility and stewardship programs to push collection economics in the same direction through the late 2020s.

Technology and a caveat. Biodegradable mulch films are advancing, but they address a different problem (films tilled into soil), not pressurized drip tape, so recycling, not biodegradation, remains the path for tape. If you’re planning capacity for 2027 and beyond, the smart move is to design around contamination handling and collection logistics, because those, not the recyclability of PE, are what the whole industry is still solving for.

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