Method and apparatus for extracting or concentrating carbonaceous compounds from a fluid

摘要

This invention relates to a method for extracting or concentrating carbonaceous corn pounds from a fluid containing carbonaceous material during wastewater, sludge or biomass treatment using a wastewater plant, which method comprises steps of: -(i) collecting, mixing the fluid in a bio process tank -(ii) subjecting the fluid to clarification in a clarification tank thereby obtaining a dan fied fluid, which separates between a treated fluid and a sludge fluid -(iii) subjecting at least one of the clanified fluids and predominantly the sludge fluid to ultrasonic irradiation using an ultrasound system to form a disintegrated fluid -(iv) subjecting the disintegrated fluid to a separation process using a centrifuge to form a rejected fluid and centrifuged fluid -(v) subjecting the centrifuged fluid to digestion in a digester to form a carbon rich gas suitable for further industrial utilization in a gas refiner or in a gas engine.