| Title | Valorization of a poultry industry floated sludge as a raw material to produce char and activated carbon for pharmaceutical compounds adsorption |
|---|---|
| ID_Doc | 8528 |
| Authors | Grassi, P; Streit, AFM; Ahmad, N; Nawaz, A; Silva, LFO; Oliveira, MLS; Salla, JD; Gerhardt, A; Collazzo, GC; Jahn, SL; Dotto, GL |
| Title | Valorization of a poultry industry floated sludge as a raw material to produce char and activated carbon for pharmaceutical compounds adsorption |
| Year | 2023 |
| Published | Environmental Science And Pollution Research, 30.0, 46 |
| Abstract | This study was intended to valorize a floated sludge of a poultry slaughterhouse using it as a precursor to producing char and activated carbon, which were tested as adsorbents in removing ketoprofen and diclofenac sodium from the water. The addition of zinc chloride or calcium hydroxide was determinant for forming a porous carbonaceous structure with a high surface area in AC-FSP (656.54 m(2) g(-1)), differently from that exhibited by the CHAR-FSP (8.11 m(2) g(-1)). Kinetic and equilibrium studies indicated that the pseudo-second-order and the Sips models were suitable. The AC- FSP maximum adsorption capacity for ketoprofen and diclofenac sodium was 124.98 mg g(-1) and 138.32 mg g(-1), respectively. The adsorption was a spontaneous and endothermic process. It was concluded that AC-FSP is a more efficient and promising adsorbent than CHAR-FSP for the adsorption of drugs in contaminated wastewater. In addition, AC-FSP can be reused, maintaining good adsorption levels for about 5 cycles. Therefore, this study is aligned with the 2030 Agenda for global sustainability since converting waste (valueless) into an adsorbent is also directly linked to the circular economy and neutral carbon. |
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