Updated on December 18, 2023

·

Created on August 28, 2017

Clivus Multrum composting toilet systems

Upcoming Update

The Clivus Multrum Composting Toilet System is a dry, composting toilet.

Developed By
  1. Clivus Multrum
Tested By
  • Eurofins
Content Partners
Unknown

Author

Product Description

The Clivus Multrum composting toilet systems are dry toilets connected to a composting tank. The faeces are composted without adding water or chemicals and the end product can be used as fertilizer or soil amendment.

The main target regions are Europe and North America but Clivus Multrum distributes globally. The company is present in Austria, Australia, Belgium, Canada, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, New Zealand, Norway, Russia, Spain, Sweden, South Korea, Switzerland, the United States, and the United Kingdom

 

Target SDGs

SDG 6: Clean Water and Sanitation

Market Suggested Retail Price

$8,800.00

Target Users (Target Impact Group)

Household

Distributors / Implementing Organizations

Clivus Multrum manufactures and sells the toilets but they can also be bought in retail stores. Examples of organizations implementing the products are the Bronx Zoo in New York, the Arcipelago Foundation in Stockholm archipelago, and along the E6 motorway and DANO-area campsites in Sweden.

Manufacturing/Building Method

Clivus Multrum has manufacturing factories in several countries.

Intellectural Property Type

Patent

User Provision Model

Direct sales from distributors. Installation can be completed by the user or by Clivus Multrum.

Distributions to Date Status

As of 2021, over 20,000 toilets have been sold globally.

Toilet type

Toilet

Evacuation method

Dry

Storage conditions

Container storage

Capacity (L)

650 to 4200 L

Time until emptying

6-7 years

Design Specifications

The user interface is selected by the user with available options and modifications. Toilets are made out of porcelain or glass fiber and are either pedestals or made to be positioned on a bench. The toilet seat is connected to a polyethylene composting tank with a 6-9 mm wall size. Tank sizes vary from 650 to 4200 liters. The sewage is stored in the composting tank until it is completely composted. This process takes about 6-7 years depending on the composting environment (micro-organisms, humidity, ventilation, and temperature). The leachate from the urine and liquid components are gathered in an assigned space and can be used as fertilizer.

Product Schematics

Technical Support

Clivus Multrum and their subcontractors offer technical support.

Replacement Components

Replacement components can be aquired at Clivus Multrum distributors.

Lifecycle

Tanks are made by recycled and recyclable polyethylene.

Manufacturer Specified Performance Parameters

The manufacturers claim that the composting process reduces volume by 98% in 7 years while eliminating pathogens and producing fertilizer and soil amendment. They also specify that their products are odourless.

Vetted Performance Status

Samples from installation in Sweden were tested for pH, various bacteria (coliform, Escherichia coli, Enterococcus, and Clostridium perfringens), organic matter content, total nitrogen, ammonium, phosphorous, potassium, and magnesium.

Safety

No safety concerns if used and maintained properly.

Complementary Technical Systems

Unknown

Academic Research and References

WCTNZ. Clivus Multrum Toilet Systems. Available: https://www.wctnz.co.nz/producttag/29/clivus-multrum-toilet-systems

Clivus Multrum – Composting Toilets. Available: https://www.clivusmultrum.eu/

Clivus Multrum – Test results. Available: http://www.clivusmultrum.eu/testresults.php 

Clivus Multrum – How does Clivus Multrum work?. Available: http://www.clivusmultrum.eu/pdfdocs/BrochureEN.pdf

Clivus Multrum – Bronx Zoo Eco-Restroom. Available: https://clivusmultrum.com/green-building-bronx.php

Clivus Multrum – Reference Projects. Available: http://www.clivusmultrum.eu/referenceprojects.php

Clivus Multrum – Associations. Available: http://www.clivusmultrum.com/associations.php

Clivus Multrum – Toilet Fixtures. Available: http://www.clivusmultrum.eu/toiletfixtures.php

Clivus Multrum – Composting Tanks. Available: http://www.clivusmultrum.eu/compostingtanks.php

Clivus Multrum – Products & Services. Available: http://www.clivusmultrum.com/products-services.php

Clivus Multrum – Accessories. Available: http://www.clivusmultrum.eu/accessories.php

Goal 6. Available: https://sdgs.un.org/goals/goal6

Compliance with regulations

Clivus Multrum composting toilets are certified under the NSF/ANSI Standard 41.

Evaluation methods

Laboratory testing and field testing by Eurofins.

Other Information

Detailed information about the composting process used is found here.

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