• Cryophilia@lemmy.world
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      1 year ago

      Okay I said I was done talking with you but I actually love any excuse to nerd out on this so here:

      The state of California has mandated compostable household and business waste be separated out and picked up separately much like recycling is already separated. This is a law that is already in effect; however, they have declined to enforce it so far. They have recently began making statements that they will begin enforcing the law and fining businesses and property owners for not complying.

      Many small municipalities (and some big ones) have not even started setting up the infrastructure to do so. They’re way behind.

      This means there is a captive market for a company providing those services. A potentially huge market.

      Now anyone can set up a waste collection service, it’s pretty standardized, but here’s where my idea is different. A technology called pyrolization.. It mostly requires organic materials, lots of em. In essence, it’s burning without fire. The input is organic material, the output is a stable carbon-rich solid called biochar (similar to charcoal except not as flammable), and something called syngas, which is similar to natural gas. With the right machinery, the process produces energy and is carbon-negative.

      The carbon-negative aspect is the selling point. Do you know how many carbon-negative businesses there are? You could probably count them, globally, on both hands. This would play EXTREMELY well in California.

      Pyrolysis is not a new technology, but applying it at scale is. Currently it’s mainly in use as a way of processing human waste. There’s a company called BioForceTech in the Bay Area that has a successfully operating pyrolysis machine processing human waste, and they have machines globally that also process feedstock like wood chips and nut shells. Municipal organic waste would require a sorting machine for sure, but other than that it could use their machine just fine. And the sorting machine wouldn’t have to be as complex as those in municipal compost systems: if plastic gets mixed into your compost, that’s bad. If plastic gets mixed into something you’re just going to burn and bury, not a huge deal.

      $850,000 is not enough to set something up like this on the municipal level. That would take millions. It’s enough to get buy-in from BioForceTech, ReCology (bay area waste management company that has experience with waste-gas powered trucks, and compost sorting machines), investors, and local and state government (the state has several grant and loan programs for “green” businesses, especially in waste collection).

      In my opinion the biggest, most profitable market would be Santa Clara County or Alameda County, both in the bay area and both have limited compost pickup presently. But that’s a big bite to chew and I think beyond the capabilities of a new business. Something like small towns in Mendocino County would be perfect - small enough that they don’t have municipal organics collection aside from maybe yard trimmings, liberal enough that the carbon-negative aspect would play well, rural enough to have plenty of cheap land for a processing facility.

      So that’s our market. We get to charge customers for the pickup, and then sell the power generated as “clean energy”. Not to mention the whole thing functions like a peaker plant. When electricity prices are low, you can adjust the output ratio to create more biochar - adding to the carbon-negative selling point (and getting some money from cap and trade). When electricity prices are high, you can get more syngas and burn it as carbon-neutral energy.

      The one thing I’m not very familiar on and would need to consult experts on is the regulations involved in the “selling electricity” aspect. The regulatory burden may make that part not feasible, I just don’t know enough about it.