Anaerobic digestion is a generally used microbial process in wastewater treatment plants, and anaerobic digestion sludge often possesses unacceptable characteristics including high resistance to solid-liquid separation and high concentration of nutrients, such as phosphorus and nitrogen. Gamma-ray irradiation was used to improve the dewaterability of anaerobic digestion sludge, and the struvite (magnesium ammonium phosphate) precipitation method was utilized to recover increased orthophosphate (PO43 - P) and ammonium nitrogen (NH4+-N) from the ...
