Transportable Composter

WTT Transportable Composter — Smart Decentralized Mobile Composter

Introducing the Transportable Composter (TC). Unlike traditional testing methods that require a fixed, cumbersome setup at your site, our innovative solution allows for testing in a compact and movable unit — bringing the composting plant directly to your waste stream.

Ideal for Your Needs

Choose the TC When You Want to…

  • Adapt your composting process to seasonal changes or different types of waste by feedstock testing
  • Improve or adapt your process by small scale adjustments before scaling to full tunnel installations
  • Demonstrate the effectiveness of the composting process to clients, regulators or stakeholders
  • Use the heat produced in the composting process to dry high-value residues or heat adjacent areas

Compact Design, Full Capability

Our compact yet fully-equipped TC is designed to turn organic waste into compost on-site, offering an excellent testbed for your feedstock. Perfect for waste treatment facilities or research centres looking to improve their composting process.

Seize the opportunity to test and optimize your composting process in our TC. This innovation helps you to close the loop more effectively, transforming your ever-changing organic waste into valuable fertilizer with each cycle.

Key Features

Perfect for Testing and Adjusting Your Process

The Transportable Composter mirrors the setup of a full-size composting tunnel, packed into a movable 32 m³ steel hook lift container.

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Compact Design

The TC is a 32 m³ steel hook lift container with a hydraulic roof, meticulously crafted for optimal efficiency and mobility. Fits standard hook-lift trucks for easy transport.

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Convenient Operation

The hydraulic roof opens via hand pump or optional electric pump, enabling swift container filling. The integrated hook lift system ensures seamless, hassle-free emptying.

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Optimal Process Control

Each container is integrated with our WTT software, mirroring the setup of a full-size composting tunnel. Data generated can be used to optimize a full-size installation.

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Easy to Relocate

The TC can be easily transported to any of your waste treatment facilities, offering flexibility and convenience in your testing processes across multiple sites.

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On-Site Composting

Convert organic waste directly into compost at the point of generation, eliminating haulage costs and the emissions associated with transporting waste.

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Hydraulic Roof

Robust hydraulic roof keeps the process enclosed and controlled, while allowing rapid top-loading with standard loaders when opened.

Closing the Loop for a Better Future

Bringing the Transportable Composter Plant to You! Experience the efficiency of our compact solution. Whether you are validating a new feedstock, training operators, demonstrating technology to a client, or scaling up to a full tunnel composting facility — the TC is your ideal companion on the path to sustainable, circular organics management.

Standard Configuration

Container Dimensions & Throughput

One standard unit — easily transportable, quick to set up, and sized for meaningful test-scale data.

7 m
Length
2 m
Width
2.3 m
Height
1 #
Containers
1 /wk
Container Fillings
7 days
Cycle Duration
11,500 kg
Input Weight
23.0 m³
Input Volume
2.1 m
Filling Height
32 m³
Container Volume
Specific Example

TC Composting Process — Worked Example

Representative input and output figures for a typical 7-day composting cycle in the Transportable Composter.

→ Organic Waste Stream (Input)

Quantity 11.500 kg
Dry Solids (DS) 35%
Organic Dry Solids (ODS) 75%
Density 500 kg/m³
Volume 22.8 m³

→ Compost (Output)

Quantity 7.250 kg
Dry Solids (DS) 49%
Organic Dry Solids (ODS) 72%
Mass reduction through water evaporation & organics degradation
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Heat Harvest
Organics Degradation
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Water Evaporation
Utilizing Heat Exchange

Interconnect Multiple Containers for Even Greater Efficiency

By interconnecting multiple containers, heat transfer between them is facilitated, enhancing operational efficiency. This allows for accelerated start-up of the composting process or efficient drying of residual streams, optimizing overall productivity and resource utilization.

  • Share process heat between active and freshly loaded containers
  • Shorten the mesophilic phase — reach thermophilic temperatures faster
  • Dry high-value residue streams with recovered waste heat
  • Boost overall energy balance of multi-container installations
40k–85k
kWh / year heat potential
75–125
kWh / ton of input

Resource-Conscious Design

Heat is a valuable by-product of active composting. Rather than letting it dissipate to the atmosphere, WTT’s interconnection system captures it and puts it to productive use — reinforcing the circular-economy value proposition of every TC system.

At a Glance

Why the Transportable Composter?

A self-contained, process-accurate test platform that mirrors real tunnel composting — in a package that goes wherever you need it.

Benefit Area What the TC Delivers
Feedstock Testing Validate new waste streams on a small, manageable scale before committing to full tunnel capacity
Process Optimisation Adjust aeration, moisture, C:N ratio and recipe at low risk — then scale what works
Seasonal Adaptation Iterate quickly when feedstock composition shifts with seasons or supplier changes
Demonstration Show regulators, clients and investors real composting output and sanitisation data
Heat Recovery Use composting heat to dry residues, warm buildings or pre-heat incoming feedstock
Mobility Hook-lift compatible — move the unit between facilities on a standard truck

© 2026MECBIO

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