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How to Make Wool Into Organic Waste Pellets

Date: 02/26/2021 08:52:49 From: Clicks:

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There has been a lot of talk in recent years about finding another use for wool. The sad decline in the value of wool has been well documented, with wool prices hitting a new low in 2020. Wool merchants were quoting 20-25c/kg at best for good-quality wool, with poorer quality scotch wool being valued at a mere 5c/kg and in some cases not even worth anything. Wool prices have been on the decline for a long time now and the days of breaking even are gone, with many farmers out of pocket when it comes to carrying out the necessary task of shearing their sheep.


Wool has had a low market value for quite a long time now and Richi Machinery is looking at pelletising it to be used as an organic fertiliser as well as a slug repellent and weed suppressant for both domestic and agricultural use. Richi started making pellets to densify biomass materials and to take residues and turn them into reusable fertilisers. So through some research, We found that densifying the product would not only save on feed but it would be more energy-efficient to the animals. Over the years, Richi did more research and discovered that we could pelletise animal manure among a host of other biomass materials.

How to Make Wool Into Organic Waste Pellets

When making wool into granular products, if we bring in wool let’s say, it can be clean, dirty or short wool, it doesn’t matter really. We put it through the pellet mill and with heat and pressure we can turn it into a pellet. That pellet is then used as an organic fertiliser, as well as a range of other things.

how to make wool into organic waste pellets
how to make wool into organic waste pellets

At the minute, the one problem we are facing is being able to chop the wool up. We don’t have a machine for that as of yet but we are looking at getting one. If we were to put in large amounts of wool into the pellet mill unchopped, then it would just get clogged up and cause problems. But with a machine that could chop the wool up, we would be able to process a huge amount of wool at any one time and turn it into something useful like fertiliser.

Value Of Pelletised Wool

Speaking about the value of the wool once it is broken down and pelletised, Richi Mechanical Engineer Li said: “If a farmer was to spread the organic manure made from the wool, you’re talking about a nitrogen (N) value of about 9%, the phosphorus (P) value would be about 1% and the potassium value would be roughly 2%. It also contains micronutrients and approximately 60% organic matter, so it will help to improve the soil aeration and water-holding capacity – depending on the time of year.

All round, it is just a good basic fertiliser. We can also pelletise cattle manure if it’s pre-processed on a farm, dried and separated, and turn it into organic fertiliser. It would be a slow-release fertiliser, which would be very beneficial for crops. We can take just about take any type of biomass and turn it into a pellet.

Advantages of Organic Fertilizer Pellets

1. Soil Structure

Because of the organic matter present in organic fertilizer, soil structure is improved and as a result the soil’s ability to hold onto water and nutrients increases.

Organic Fertilizer Pellet
Organic Fertilizer Pellet

2. Reduce Fertilizers and Pesticides

Although organic fertilizer can be more costly than synthetic, it can reduce the need for pesticides and the overall nitrogen, phosphorus and potassium requirements. Because of the reductions, organic fertilizer can be cost neutral and sometimes a cost savings.

3. Plant Damage Threat Avoided

Some synthetic fertilizers can cause plant damage to leaves and roots. This is less likely with organic fertilizers.

4. Microbes Thrive

Synthetic fertilizer consists of chemical molecules without carbon. These molecules can sometimes be disruptive and are not accessible to microbes. On the other hand, organic fertilizer is rich in organic matter, which helps microbes thrive. Organic fertilizer contains carbon as part of its chemical makeup; and it is the carbon, along with nitrogen, phosphorus and potassium that feeds microbes and enables them to make nutrients available for plants in a naturally occurring biological process.

5. Sustainable and Environmentally Friendly

Synthetic fertilizers runoff into our waterways harming marine life and water quality. Organic fertilizers do not run off as easily (if at all) and are associated with soil structure. According to the Organic Trade Association, organic fertilizer also increases species biodiversity by 30% compared with synthetic fertilizer.

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