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50: Rocket high speed composting machine

Solution 49 in a 1-a-day series of 366 creative, hopeful ideas to clean up, repair, protect our planet:

Problem:

The conventional composting of biowaste is slow.

Solution:

The Rocket high-speed composting machine.


In the early 1990s, John Webb of Macclesfield, Cheshire, England, wanting to speed up the composting process on his smallholding, developed a machine that could treat his garden waste and horse manure and turn it into highly nutritious compost in just 14 days.

Working closely with DEFRA (The Department for Environment, Food and Rural Affairs) after the 2001 foot and mouth crisis, Webb and his son Simon continued to develop the machine to ensure it was fully compliant with the Animal By-Products Regulations to safely treat other organic wastes, including food waste.

They founded Tidy Planet to build and commercialise a machine they called the Rocket.

It comprises a continual flow system with waste being mixed with dry woodchip for compost production. The capacity of the electrically-powered Rocket range of machines goes from 154 gallons (700 liters) up to 3.9 tons (3.5 tonnes) per day.
France

Tidy Planet expanded its globally-acclaimed range of Rocket composters, with the creation of the B1400, a machine specially-commissioned for its French distributor: Alexandre Guilluy and Fabien Kenzo of Les Alchimistes needed equipment that would process up to two tonnes of a mix of food and shredded wood wastes every day – in line with the site’s waste processing threshold.

Les Alchimistes have a fleet of trailer bicycles and small vans which go around Paris collecting food waste from supermarkets, restaurants, and hotels across the French capital.

This is assembled at Lil’O known locally as L’Île-Saint-Denis an island in the River Seine, 6 mi (10km) north of The Eiffel Tower where it is turned into compost, to be sold to urban agriculture and gardening.

Due to the project’s resounding success, Les Alchimistes has received support from the French Government and EU funding to set up similar food waste collection centres in Lyon, Toulouse, Toulon, and Marseille, each of them using Tidy Planet’s B1400 Rocket. Les Détritivores based at the Ecosytème Darwin in Bordeaux are carrying out a similar operation.

China

In China, another solution dealing with food waste is to feed it to cockroaches (Blattodea) which then become either feed for livestock or for curing oral and peptic ulcers, skin wounds and even stomach cancer. At one farm, run by Li Yanrong in the Zhangqiu District, over 1 billion cockroaches are consuming some 55 tons (50 tonnes) of kitchen waste every day.

Elsewhere in Sichuan, a company called Gooddoctor is rearing 6 billion cockroaches, while Shandong Qiaobin Agricultural Technology Co., in Jinan plans to set up three more such plants, aiming to process a third of the kitchen waste produced by Jinan, home to about seven million people.

What you can do: Tell local authorities about advances of Rocket composters in large towns.

Discover solution 51: The miracle of birdsafe window panes

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