HotRot’s In-vessel composting systems take the nuisance out of large scale composting. We design, build and install turnkey organic waste treatment plants worldwide for organisations looking for a clean, simple composting solution.

The equipment is designed to compost large amounts of putrescible waste for councils, waste collection/ processing companies and commercial/ industrial organic waste producers such as food processors and breweries. It is also ideal for organic waste composting at zoos, universities, resorts and remote site organic waste disposal e.g mining, oil and gas projects. Where necessary HotRot offers a complete integrated solution from waste collection, pre-processing and sorting, through to composting and end-product use.

The plants are completely enclosed and are the only composting systems in the world supplied with a contractual odour free guarantee This makes them ideal for composting highly putrescible waste streams such as source separated organics (food waste), sewage sludge or biosolids and diapers/ nappies and absorbent hygiene waste (AHW).

HotRot’s technology is simple to operate, requires minimal space, has low labour/ maintenance requirements and is leachate free. As landfill costs inrease and environmental regulations continue to tighten, HotRot's in-vessel sytems are a compelling proposition for the processing of organic waste.


Waste dashboard

Daily Waste Usage: 94 tonnesWASTE PROCESSED per day
Total Year to date Processed Waste: 10904 tonnesWASTE PROCESSED THIS YEAR TO DATE
  • HotRot Solutions

    Commercial composting solutions for a wide range of organic wastes.

    • High efficiency composting of kitchen and garden (leaf and yard) waste. Quality compost requires quality inputs: just as “you can’t make a silk purse from a sow’s ear”, you can’t make quality compost from mixed municipal waste. HotRot recommends the separate collection of municipal green waste to maximise the value and quality of the compost.


      Council and municipal bodies have historically collected mixed waste and put it straight into landfill. However this is becoming increasingly problematic due to rising gate fees, higher transport costs and tighter regulatory controls. Progressive councils are collecting source separated materials (organics and recyclables) and closing the loop by converting kitchen and garden waste into compost, a valuable and renewable resource.



    • Innovative composting of biosolids using natural and synthetic bulkers. Sludge or biosolids composting is traditionally done off-site at a dedicated composting facility. This generally involves significant transportation, reducing overall environmental benefits. --END-- HotRot’s fully enclosed, small footprint, composting system lends itself to composting of biosolids on-site at the wastewater or sewage treatment plant. Both primary and secondary sludge can be composted but material should be dewatered or solar-thickened as much as possible. --END-- A HotRot sludge composting system can be integrated seamlessly into the operations of a wastewater treatment plant. HotRot also offers the ability to replace traditional organic bulking agents (shredded wood or garden waste) with a fully reusable synthetic bulker.

    • Reducing costs and environmental impacts at mine sites and oil and gas projects. HotRot systems have been employed at remote camps in Northern Canada, West Africa, Asia, Australia and the Pacific. --END--Work camps at mines, oil and gas projects and large infrastructure projects can become large self-contained communities. Their remoteness and the sensitivity of the environment pose specific challenges when it comes to waste disposal. --END--Remote camps often produce a disproportionately high amount of food waste per head. This waste can be difficult and costly to dispose of. Compact and efficient, HotRot’s units turn this waste into compost, a resource that can be used to grow produce for the camp or local community or to assist with site restoration and reforestation. The HotRot technology is simple to operate, robust and uses minimal power while transforming putrescible organic waste, which is smelly and attracts vermin, to stable compost that is soil-like to touch and smell.

    • A complete system and business model for collection and processing of diapers and absorbent hygiene waste. More than 19 billion disposable diapers (nappies) are used annually in the US alone - enough to circumnavigate the globe more than 90 times.


      Yes you can compost nappies! While diapers and absorbent hygiene waste (AHW) contain plastic and other non-compostable materials a large portion is organic. The super absorbent polymer (SAP) which makes up more than 30% of a fresh nappy was initially developed by the US Department of Agriculture as an additive to improve the moisture holding capacity of soils and is commonly used in commercial composts such as potting and tub mixes. --END--

      For diaper and AHP composting HotRot offers an economic scalable commercial solution through our global partner Environcomp, an OCS Group company.

    • Compact composting systems for processing organic waste on-site. The ability to compost organic waste on site and then utilise the compost produced offers organisations such as zoos, universities and specialist processors (e.g. breweries) the ability to truly close-the-loop.--END-- If you are a large business or institution concerned about the greenhouse gas emissions, transport costs and landfill costs associated with your organic waste disposal then consider composting it on-site and utilising the product.--END--Food waste disposal for resorts, hospitals, prisons, zoos and hospitals can be taken care of on-site. HotRot's units have a small footprint and are easy to operate. The composted material can be used on gardens/ vegetation within the grounds or for local crop production.

Waste 2015 conference
27 April, 2015Christchurch, NZ

HotRot will visit the 15th annual Coffs Harbour Waste Conference will be held at Opal Cove Resort, Coffs Harbour from 5th to 7th May 2015.

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The Coffs Harbour Waste Conference is the leading conference for the waste management industry in Australia and is the only WMAA endorsed conference in NSW.

Annually the conference attracts over 450 delegates, 45 exhibitors and 80 presenters, both national and international. It is targeted at anyone who works in or has an interest in waste management issues, and is particularly relevant to local government.

Attendees benefit from exhibition by leading companies and professionals in the waste management industry from across Australia, as well as hearing from keynote speakers on the latest developments in the industry.

There are also three social evenings providing a relaxed atmosphere for networking.

Topics that may be covered in 2015 include:

  • Waste Infrastructure
  • Landfill issues
  • Marketing and Education
  • Innovation in Organics
  • Policy and Strategy
  • Litter, Illegal Dumping and Problem Wastes
  • Packaging and Collection
  • Resource Efficiency
  • Social Enterprise
  • Carbon and Waste