| Title | Variability in the composition of extracellular polymeric substances from a full-scale aerobic granular sludge reactor treating urban wastewater |
|---|---|
| ID_Doc | 12892 |
| Authors | Oliveira, AS; Amorim, CL; Ramos, MA; Mesquita, DP; Inocêncio, P; Ferreira, EC; van Loosdrecht, M; Castro, PML |
| Title | Variability in the composition of extracellular polymeric substances from a full-scale aerobic granular sludge reactor treating urban wastewater |
| Year | 2020 |
| Published | Journal Of Environmental Chemical Engineering, 8.0, 5 |
| Abstract | Within the framework of the circular economy, there is a need for waste management alternatives that promote the reuse of materials produced in wastewater treatment plants (WWTP). An interesting option is the recovery of extracellular substances from sludge. The variability of characteristics of potential recovered bioproducts has to be assessed in full scale operational settings. In this study, aerobic granular sludge (AGS) from a full-scale WWTP treating urban wastewater was regularly collected for 4 months to assess variability in extracellular polymeric substances (EPS) composition and in granular morphology. Variations in the EPS composition occurred with time. Proteins and humic substances were the main EPS components (329-494 and 259 - 316 mg/g VSS of AGS, respectively), with polysaccharides and DNA representing minor components. The application of an extra purification step after extraction to obtain a purer EPS led to a decrease in the yield of each EPS component, particularly pronounced for the polysaccharides. The final product had a rather constant composition for the monthly samples. The granules showed morphological stability throughout the sampling period and the yield of EPS was correlated to the size of the granules, higher when there was a higher content of small granules (Deq < 150 mu m) comparing to intermediate (150 <= Deq < 1500 mu m) or large granules (Deq >= 1500 mu m). This is the first time that a potential valorization strategy for surplus AGS biomass is studied in a full-scale environment. Knowledge on yield and product homogeneity is important as these features are essential for downstream application of the recovered EPS. |
| http://manuscript.elsevier.com/S2213343720305042/pdf/S2213343720305042.pdf |
Similar Articles
| ID | Score | Article |
|---|---|---|
21464
|
Traina, F; Corsino, S; Torregrossa, M; Viviani, G Biopolymer Recovery from Aerobic Granular Sludge and Conventional Flocculent Sludge in Treating Industrial Wastewater: Preliminary Analysis of Different Carbon Routes for Organic Carbon Utilization(2023)Water, 15.0, 1 | |
| 21610
|
Feng, CJ; Lotti, T; Canziani, R; Lin, YM; Tagliabue, C; Malpei, F Extracellular biopolymers recovered as raw biomaterials from waste granular sludge and potential applications: A critical review(2021) | |
| 27062
|
Núñez, D; Oulego, P; Collado, S; Riera, FA; Díaz, M Separation and purification techniques for the recovery of added-value biocompounds from waste activated sludge. A review(2022) | |
| 22241
|
Cydzik-Kwiatkowska, A Biopolymers in Aerobic Granular Sludge-Their Role in Wastewater Treatment and Possibilities of Re-Use in Line with Circular Economy(2021)Energies, 14.0, 21 | |
| 14760
|
Cydzik-Kwiatkowska, A; Bernat, K; Zielinska, M; Gusiatin, MZ; Wojnowska-Baryla, I; Kulikowska, D Valorization of full-scale waste aerobic granular sludge for biogas production and the characteristics of the digestate(2022) | |
| 16567
|
Gusiatin, MZ; Kulikowska, D; Bernat, K Municipal Sewage Sludge as a Resource in the Circular Economy(2024)Energies, 17, 11 | |
| 16261
|
Wisniowska, E; Kowalczyk, M Recovery of Cellulose, Extracellular Polymeric Substances and Microplastics from Sewage Sludge: A Review(2022)Energies, 15, 20 | |
| 13353
|
Izadi, P; Izadi, P; Eldyasti, A Holistic insights into extracellular polymeric substance (EPS) in anammosx bacterial matrix and the potential sustainable biopolymer recovery: A review(2021) | |
| 15379
|
Kehrein, P; van Loosdrecht, M; Osseweijer, P; Posada, J Exploring resource recovery potentials for the aerobic granular sludge process by mass and energy balances - energy, biopolymer and phosphorous recovery from municipal wastewater(2020)Environmental Science-Water Research & Technology, 6, 8 | |
| 11132
|
Swiatczak, P; Cydzik-Kwiatkowska, A; Zielinska, M Treatment of Liquid Phase of Digestate from Agricultural Biogas Plant in a System with Aerobic Granules and Ultrafiltration(2019)Water, 11, 1 |