| Title | Use of nutrients from wastewater for the fertilizer industry - approaches towards the implementation of the circular economy (CE) |
|---|---|
| ID_Doc | 3460 |
| Authors | Smol, M; Adam, C; Krüger, O |
| Title | Use of nutrients from wastewater for the fertilizer industry - approaches towards the implementation of the circular economy (CE) |
| Year | 2020 |
| Published | |
| Abstract | More sustainable waste management practices are an important element in the transformation towards a circular economy (CE). Activities in this area should be dedicated to all groups of waste, including those generated in the water and sewage sector. This paper presents the characteristics of sewage sludge ash (SSA) coming from Polish municipal waste incineration plants. Due to the high content of nutrients such as phosphorus (8.01% P2O5), calcium (5.11% CaO) and magnesium (2.75% MgO), the analyzed SSA may constitute a valuable source of raw materials for the fertilizer industry. Despite the good fertilizing properties of the SSA, in some cases the presence of heavy metals such as cadmium (0.74-1.4 mg/kg dry matter), lead (49.8-99 mg/kg dry matter), mercury (3.93 mg/kg dry matter) and arsenic (4.23-4.43 mg/kg dry matter) and poor bioavailability of P from SSA disqualifies this waste from direct use as a fertilizer. Therefore, it is necessary to look for methods that will allow the municipal SSA to be processed, for example, technologies for the extraction of phosphorus and the production of phosphate fertilizer. This way of SSA management is in the line with the CE assumptions, in which waste becomes a valuable source of secondary raw materials. Fertilizer produced from waste meeting quality, safety and labelling requirements and limits of organic, microbiological and physical contaminants will be able to be traded freely within the European Union (EU) and receive the CE marking. The idea of use of SSA for fertilizer purposes is consistent not only with the objectives of the CE but also with the Polish National Waste Management Plan 2022 and the Municipal Sewage Sludge Strategy 2019-2022, which emphasizes the necessity to maximize the use of biogenic substances contained in wastewater. Therefore, sustainable management of SSA, in particular its storage in a way enabling the recovery of phosphorus, should be promoted. |
Similar Articles
| ID | Score | Article |
|---|---|---|
27508
|
Smol, M Inventory of Wastes Generated in Polish Sewage Sludge Incineration Plants and Their Possible Circular Management Directions(2020)Resources-Basel, 9.0, 8 | |
| 7012
|
Smol, M; Adam, C; Kugler, SA Inventory of Polish municipal sewage sludge ash (SSA) - Mass flows, chemical composition, and phosphorus recovery potential(2020) | |
| 18998
|
Smol, M; Adam, C; Kugler, SA Thermochemical Treatment of Sewage Sludge Ash (SSA)-Potential and Perspective in Poland(2020)Energies, 13.0, 20 | |
| 21790
|
Kominko, H; Gorazda, K; Wzorek, Z; Wojtas, K Sustainable Management of Sewage Sludge for the Production of Organo-Mineral Fertilizers(2018)Waste And Biomass Valorization, 9.0, 10 | |
| 5901
|
Smol, M Implementation of the Green Deal in the management of nutrients - phosphorus recovery potential from sewage sludge(2020) | |
| 4144
|
Smol, M The importance of sustainable phosphorus management in the circular economy (CE) model: the Polish case study(2019)Journal Of Material Cycles And Waste Management, 21, 2 | |
| 9261
|
Kominko, H; Gorazda, K; Wzorek, Z Sewage sludge: A review of its risks and circular raw material potential(2024) | |
| 23731
|
Valchev, D; Ribarova, I; Borisov, B; Radovanov, V; Lyubomirova, V; Kostova, I; Dimova, G; Karpuzova, O; Lazarova, S Valuable elements in sludge from eight municipal wastewater treatment plants in relation to their recovery potential(2024)Environmental Sciences Europe, 36, 1 | |
| 27968
|
Gorazda, K; Kominko, H; Nowak, AK; Wisniak, A Suspension fertilizers based on alternative raw materials - the key to sustainability and closed nutrient cycles(2023)Archives Of Environmental Protection, 49.0, 3 | |
| 17014
|
Smol, M; Szoldrowska, D An analysis of the fertilizing potential of selected waste streams - municipal, industrial and agricultural(2021)Gospodarka Surowcami Mineralnymi-Mineral Resources Management, 37, 3 |