Global Composting Solutions Ltd (HotRot) is a New Zealand-based business providing waste treatment solutions for customers with a variety of organic waste streams. HotRot designs, builds, installs and commissions integrated Organic Waste Treatment Plants around the proprietary HotRot Technology.
ABOUT OUR COMPANY
HotRot is the foundation of a highly efficient and cost effective system for your composting needs
40+
Reference Sites
282
Waste Managed
+15
Countries
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HotRot guarantees that the plant designed, installed and operated according to our guidelines will not result in odour problems for your business.
ODOUR FREE GUARANTEE
Annual operating costs for a HotRot plant are 25% less than for a comparable tunnel composting facility.
LOW OPERATING COSTS
HotRot systems require 50-75% less space than similar sized in-vessel and tunnel composting systems.
COMPACT & SCALEABLE
HotRot systems require significantly less labour than similar sized in-vessel and tunnel composting systems.
ROBUST & DURABLE
A unique central tine-bearing shaft rotates periodically and slowly to redistribute heat and moisture and maintain porosity promoting efficient composting.
UNIQUE DESIGN FEATURES
How it Works
The HotRot 3518 is the largest of Global Composting Solution’s in-vessel composting units. Designed for larger municipalities and sewage treatment plants.
Suitable for on-site applications such as zoos and mining camps, smaller municipal transfer stations, resorts and commercial food waste facilities.
The baby of the HotRot range, the HotRot1206, is designed to process food waste from canteens and commercial premises.
High-efficiency composting of source-separated food only or food and garden organics. 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 offers a system designed to process source separate food waste, with garden organics and other wood wastes added as needed. Solutions are available for a few hundred to over 300,000 people (based on 78 kg per person per annum of food waste and added amendment), primarily utilising the HotRot 3518 or HotRot 1811.
SOURCE SEPARATED FOOD WASTE
Turning dewatered biosolids into a useable fertiliser. Sludge or biosolids composting is usually done off-site at a dedicated composting facility, which generally involves significant transport, carbon emissions and costs. HotRot's compact footprint offers an on-site solution and can be coupled with dewatering systems, etc. Solutions for WWTP up to 500,000 population equivalents primarily utilising the HotRot 3518 and HotRot 1811.
SEWAGE SLUDGE / BIOSOLIDS
A unique system combining aerobic composting and anaerobic digestion operating in parallel. A system designed to optimize the performance of both processes by reducing the moisture content of material going to composting and anaerobically digesting recovered excess liquor that is free of contamination, such as packaging. Solutions for 2000 to in excess of 750,000 people.
PARALLEL AEROBIC ANAEROBIC PROCESSING
Reducing costs and environmental impacts at mine sites and oil and gas projects. HotRot systems have been employed at remote camps in different regions, such as Northern Canada, West Africa, Asia, Australia and the Pacific. Many sites utilise the HotRot 1811 or HotRot 1206 and can be supported by a dewatering system.
REMOTE WORK CAMPS
TESTIMONIALS
Client Success Stories: Hear What Our Clients Say
"We have made an important step towards our sustainability goals of zero waste to landfill"
THOMAS MEEK
Compost, Recycling & Waste Manager
Melbourne Zoo
The system has proven incredibly easy to operate and has certainly become a talking point with our consumers as well as something to be proud of among employees.
MANDY MCKAY
Sustainability Coordinator
Sierra Nevada Brewing Co.
Overall, the HotRot has been a wise investment for Sierra Nevada and we would absolutely recommend the system to others looking for onsite composting solutions.
CHERI CHASTAIN
Sustainability Manager
Sierra Nevada Brewing Co.