Publication
ENHANCING VOLATILE FATTY ACIDS YIELDS FROM WASTE ACTIVATED SLUDGE TREATED BY HYBRID OXIDATION WITH OZONE AND SODIUM PERCARBONATE
(STEF92 Technology, 2025-12-27, Diana Puiu, Marcela Popa, Laurentiu Dinu, Mihai Nita-Lazar, Lucian Alexandru Constantin)
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The volatile fatty acids (VFAs) are a valuable source of hydrogen on fuel industry or precursors of polyhydroxyalkanoates, a highly in trend and non-toxic bioplastics. However, the VFAs generation costs are expensive. Therefore, this study proposed a recycling solution of the waste activated sludge (WAS) into VFAs by non-conventional treatment with tandem steps of energic and slow oxidation in alkaline media by hybrid treatment with ozone and sodium percarbonate (SPC), followed by semi-aerobic fermentation at 22oC...
Recycling2025