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.
Bioheat. Bioheat (B20) is a blend of 80% low sulfur No. 2 home heating oil and 20% biodiesel. This is a blend that can be used in your home oil burning furnace, as well as in diesel operated automobiles.This blend percentage ensures the safe and consistent operation of your current furnace while maximizing the environmental benefits of biodiesel.ou can expect to pay a price that would be close to the price of oil if you were not in the Co-op. The industry is confident that demand as well as a heightened sense of responsibility and environmental stewardship, the cost of bioheat continues to become more competitive.