Getting rid of waste the clean way: Redwood City company finds a way to turn biosolids into fertilizer with no energy
Source: Daily Journal
Though most don’t think about what happens after a toilet is flushed, Dario Presezzi and his team of five have been hunkered down in trailers at a Redwood City wastewater treatment plant for the last five years laser focused on just that.
Presezzi is the CEO of Bioforcetech, a company working on a system that creates the energy required to turn the human waste collected from wastewater treatment plants into a rich fertilizer.
Starting in April, the small team of Italian natives that make up the Bioforcetech team have the opportunity to make a large dent in a problem most prefer not to think about — what happens to the truckloads of human waste processed at wastewater treatment plants — when they will begin processing half, or 7,000 tons, of the Silicon Valley Clean Water treatment plant’s biosolids, a friendly term the Bioforcetech team uses for human waste.
For Daniel Child, manager of the Silicon Valley Clean Water treatment plant, the Bioforcetech team’s work offers another option for solving a problem with few tried and true solutions. Currently, the biosolids that come through the plant are spread out on land to be dried by the sun for days before they are trucked out of the plant to fertilize farms in Solano County or nearby cities like Sacramento or Modesto.
“Disposal of biosolids is an ongoing challenge in the state of California,” he said. “It’s always good to have more than one option.”
When Presezzi and a few colleagues came to the Silicon Valley Clean Water treatment plant from Italy to explore how their system could work in the United States in 2011, it wasn’t clear the marshy land at the tip of Redwood Shores would become home to their offices.
But ever since 2011, when the plant treating wastewater from Redwood City, San Carlos, Belmont and other jurisdictions voiced support for their team, the six members of the Bioforcetech team have been hard at work refining a college project.