| Title | Recovery of Waste Polyurethane from E-Waste. Part II. Investigation of the Adsorption Potential for Wastewater Treatment |
|---|---|
| ID_Doc | 23328 |
| Authors | Santucci, V; Fiore, S |
| Title | Recovery of Waste Polyurethane from E-Waste. Part II. Investigation of the Adsorption Potential for Wastewater Treatment |
| Year | 2021 |
| Published | Materials, 14, 24 |
| Abstract | This study explored the performances of waste polyurethane foam (PUF) derived from the shredding of end-of-life refrigerators as an adsorbent for wastewater treatment. The waste PUF underwent a basic pre-treatment (e.g., sieving and washing) prior the adsorption tests. Three target pollutants were considered: methylene blue, phenol, and mercury. Adsorption batch tests were performed putting in contact waste PUF with aqueous solutions of the three pollutants at a solid/liquid ratio equal to 25 g/L. A commercial activated carbon (AC) was considered for comparison. The contact time necessary to reach the adsorption equilibrium was in the range of 60-140 min for waste PUF, while AC needed about 30 min. The results of the adsorption tests showed a better fit of the Freundlich isotherm model (R-2 = 0.93 for all pollutants) compared to the Langmuir model. The adsorption capacity of waste PUF was limited for methylene blue and mercury (K-f = 0.02), and much lower for phenol (K-f = 0.001). The removal efficiency achieved by waste PUF was lower (phenol 12% and methylene blue and mercury 37-38%) compared to AC (64-99%). The preliminary results obtained in this study can support the application of additional pre-treatments aimed to overcome the adsorption limits of the waste PUF, and it could be applied for "rough-cut" wastewater treatment. |
| https://www.mdpi.com/1996-1944/14/24/7587/pdf?version=1639134432 |
Similar Articles
| ID | Score | Article |
|---|---|---|
23637
|
Santucci, V; Fiore, S Recovery of Waste Polyurethane from E-Waste-Part I: Investigation of the Oil Sorption Potential(2021)Materials, 14, 21 | |
| 15303
|
Quinteiro, P; Gama, NV; Ferreira, A; Dias, AC; Barros-Timmons, A Environmental assessment of different strategies to produce rigid polyurethane foams using unrefined crude glycerol(2022) | |
| 10927
|
Maia, LS; Zanini, NC; Claro, AM; do Amaral, NC; Barud, HS; Mulinari, DR Eco-friendly foams of castor oil based-polyurethane with Artemisia residue fillers for discarded vegetable oil sorption(2021)Journal Of Applied Polymer Science, 138, 43 | |
| 25808
|
Lee, T; Kim, JH; Tsang, YF; Chen, WH; Lee, D; Jung, MW; Jung, S; Kwon, EE Conversion of toxic chemicals into flammable gases through the thermolysis of polyurethane foam using CO2(2023) | |
| 13672
|
de Moura, AA; Straioto, H; Martins, WM; de Araújo, TP; Diório, A; Gil, GA; Moisés, MP; Barros, MASD Eco-friendly synthesis of a novel adsorbent from sugarcane and high-pressure boiler water(2024)Environmental Technology, 45, 18 | |
| 9948
|
Ko, JY; Zarei, M; Lee, SG; Cho, KL Single-Phase Recycling of Flexible Polyurethane Foam by Glycolysis and Oxyalkylation: Large-Scale Industrial Evaluation(2023)Acs Sustainable Chemistry & Engineering, 11.0, 27 | |
| 12729
|
Baskar, AV; Bolan, N; Hoang, SA; Sooriyakumar, P; Kumar, M; Singh, L; Jasemizad, T; Padhye, LP; Singh, G; Vinu, A; Sarkar, B; Kirkham, MB; Rinklebe, J; Wang, SS; Wang, HL; Balasubramanian, R; Siddique, KHM Recovery, regeneration and sustainable management of spent adsorbents from wastewater treatment streams: A review(2022) | |
| 14021
|
Nguyen, QH; Tran, ATK; Hoang, NTT; Tran, YTH; Nguyen, PX; Pham, TT; Nguyen, MK; Van der Bruggen, B Plastic waste as a valuable resource: strategy to remove heavy metals from wastewater in bench scale application(2022)Environmental Science And Pollution Research, 29, 28 | |
| 14723
|
Tejero, MDA; Jové, E; Carmona, P; Gomez, V; García-Molina, V; Villa, J; Das, S Treatment of oil-water emulsions by adsorption onto resin and activated carbon(2017) | |
| 15089
|
Gama, N; Godinho, B; Madureira, P; Marques, G; Barros-Timmons, A; Ferreira, A Polyurethane Recycling Through Acidolysis: Current Status and Prospects for the Future(2024) |