B Green Group sees a future in converting restaurant waste oil, fat and grease into biofuels. According to the National Renewable Energy Laboratory (NREL) 4 billion lb (1.81 billion kg) of trap grease available in the U.S. each year could yield about 500 million gal (1.89 billion L) of biodiesel instead of ending up in municipal waste streams. The figures for oils and fats are similar.
The largest city in Saskatchewan has turned a problem of excess phosphorus accumulating in its wastewater treatment system into a slow-release, environmentally-friendly fertilizer. Using an Ostara Pearl 2000 reactor system, as well as Kason screening and classifying technology, operating at the City of Saskatoon Wastewater Treatment Plant, the city is transforming excess (previously wasted) phosphorus and nitrogen from their wastewater into high-grade fertilizer.
This new Vibroscreen Flo-Thru low profile screener from Kason classifies bulk material into three fractions at high rates. It employs two screening decks and two unbalanced-weight gyratory motors mounted on opposing exterior sidewalls of the unit, instead of one motor positioned beneath the screening chamber, which reduces minimum height requirements significantly.
This medium capacity Centri-Sifter centrifugal screener, model “MO”, features a cantilevered shaft with two externally-mounted bearings between the screening chamber and motor drive, allowing all internals to slide freely from the shaft end for cleaning, screen changes, or inspection. These screeners are ideal for use in various industries requiring thorough wash-down and frequent screen changes, or where cross-contamination is a concern. In recycling, units are ideal for various applications, such as for the screening of paper fibres for gypsum wallboard recycling.