| Title | Municipal Sewage Sludge as a Resource in the Circular Economy |
|---|---|
| ID_Doc | 16567 |
| Authors | Gusiatin, MZ; Kulikowska, D; Bernat, K |
| Title | Municipal Sewage Sludge as a Resource in the Circular Economy |
| Year | 2024 |
| Published | Energies, 17, 11 |
| Abstract | Municipal sewage sludge (MSS) is an inevitable byproduct of wastewater treatment, with increasing amounts year by year worldwide. The development of environmentally and economically acceptable methods for the sustainable management of MSS is a major environmental challenge. Nowadays, sludge management practices, besides the commonly used stabilization methods, focus attention on alternative sludge-disposal pathways, which encompass enhanced energy and valuable-resource recovery. This review presents the recent advances in the recovery of selected value-added products from sludge. Because of the high nitrogen and phosphorus concentrations, waste MSS can be a nutrient source (e.g., struvite). This paper discusses the conditions of and advances in the technology of struvite recovery. As in the extracellular polymeric substances (EPSs) of biological sludge, alginate-like exopolymers (ALEs) are present in MSS systems that treat municipal wastewater. The yields, dynamics in content, and characterization of ALEs and their possible applications were analyzed. MSS is an important source of humic substances. Their occurrence, characterization, and yields in various types of MSS (e.g., untreated, composted, and digested sludge) and main methods of application are presented. The important aspects and trends of MSS pyrolysis, including the thermochemical conversion to biochar, are discussed in this review. The characterization of biochar derived from MSS and the assessment of the environmental risks are also covered. This paper explores the potential use of biochar derived from MSS in various applications, including soil amendment, carbon sequestration, and environmental remediation. |
Similar Articles
| ID | Score | Article |
|---|---|---|
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 | |
| 16261
|
Wisniowska, E; Kowalczyk, M Recovery of Cellulose, Extracellular Polymeric Substances and Microplastics from Sewage Sludge: A Review(2022)Energies, 15, 20 | |
| 29361
|
Zeng, RG; Shi, C; Hao, LT; Huang, A; Yuan, T; Zhang, N A review of alginate-like extracellular polymers from excess sludge: Extraction, characterization, and potential application(2023) | |
| 15039
|
Liu, J; Zhang, Z; Deng, YF; Chen, GH Effect of extraction method on the structure and bioactivity of polysaccharides from activated sludge(2024) | |
| 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) | |
| 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) | |
| 8045
|
Racek, J; Sevcik, J; Chorazy, T; Kucerik, J; Hlavinek, P Biochar - Recovery Material from Pyrolysis of Sewage Sludge: A Review(2020)Waste And Biomass Valorization, 11, 7 | |
| 20829
|
Capodaglio, AG Biorefinery of Sewage Sludge: Overview of Possible Value-Added Products and Applicable Process Technologies(2023)Water, 15, 6 | |
| 12892
|
Oliveira, AS; Amorim, CL; Ramos, MA; Mesquita, DP; Inocêncio, P; Ferreira, EC; van Loosdrecht, M; Castro, PML Variability in the composition of extracellular polymeric substances from a full-scale aerobic granular sludge reactor treating urban wastewater(2020)Journal Of Environmental Chemical Engineering, 8.0, 5 |