PIA experiments with 'sludge' composting


Kyle Clayton / Petersburg Pilot

The sludge is constantly being aerated to increase bacteria productivity in the digester at the wastewater treatment plant.

The stuff you flush down the toilet might spruce up town if Petersburg Indian Association's new compost plan works out.

"It's a lot less gross than you think," said Jason Wilson, PIA tribal resource director.

Justin Haley, wastewater-operating supervisor, and his staff calls it sludge and Wilson took a tour of the facility earlier this week.

"Sludge is what we refer to it as until we take the water out," Haley said.

Haley said an average of 400,000 gallons of sludge per day flows from Petersburg's pipes into the treatment facility.

Sludge includes material from toilets and kitchen sinks to...

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