Sludge equals millions for Kansas City thanks to biofuels

In Missouri, Kansas City government generated $2 million over the past few years thanks to its innovative handling of sludge. The city uses sludge as fertilizer to grow corn and soybeans on city-owned farmland, which are then sold to produce biofuels. The program has allowed the city to not only generate revenue, but reduce its sludge incineration as well, spreading nearly 10,000 tons of sludge as fertilizer and only incinerating approximately 2,000 tons last year.