Concrete Canoe. The Greek polymath Archimedes is said to have solved the mystery of buoyancy in a bathtub. Even if the story is apocryphal, his principle isn't: If an object weighs less than the water it displaces, it won't sink. Even concrete can float. Materials scientist Joseph-Louis Lambot built a concrete dinghy featured in the 1855 World's Fair.
Definition of BIOFILTER. : a filter bed in which sewage is subjected to the action of microorganisms that assist in decomposing it. ADVERTISEMENT. 2bi- + filter.rigin of BIOFILTER. 2bi- + filter. This word doesn't usually appear in our free dictionary, but the definition from our premium Unabridged Dictionary is offered here on a limited basis.
The Waterloo BiofilterÂ® is an advanced onsite wastewater treatment system for off-sewer developments including residential single dwelling households and cottages, decentralized commercial and light industrial lands such as golf courses, resorts and restaurants, as well as large clustered or communal systems.he Waterloo BiofilterÂ® is an advanced onsite wastewater treatment system for off-sewer developments including residential single dwelling households and cottages, decentralized commercial and light industrial lands such as golf courses, resorts and restaurants, as well as large clustered or communal systems.