An increasing number of governments around the world are enacting stricter regulations on the production and use of biosolids from wastewater, coinciding with growing support in some markets for high-quality, Class A biosolids. This blog article looks closer at the nutrient-rich material and its classification basis according to the US EPA 503 Biosolids Rule, differences between Class A and Class B biosolids, and the predilection for land recycling or application of biosolids in countries with specific drivers.
15 July 2021
A collaboration between Cambi and NOV Inc. using the latter’s Flexishaft design resulted in a new generation of progressive cavity pumps for thermal hydrolysis, with improved maintenance intervals and performance.
01 July 2021