Recycling Nutrients and Reducing Carbon Emissions in the Baltic Sea Region—Sustainable or Economically Infeasible?
- 20 September 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Environmental Management
- Vol. 69 (1), 213-225
- https://doi.org/10.1007/s00267-021-01537-z
Abstract
Ecotechnologies have the potential to reduce the use of finite resources while providing a variety of co-benefits to society, though they often lack in market competitiveness. In this study, we investigate the sustainability of ecotechnologies for recovering carbon and nutrients, and demonstrate how a so-called “bottom-up” approach can serve as a decision-making instrument. Based on three case study catchments with a focus on domestic wastewater in Sweden and Poland, and on manure, grass and blackwater substrates in Finland, we apply a cost–benefit analysis (CBA) on system alternatives derived from a participatory process. After drawing on an initial systematic mapping of relevant ecotechnologies, the scope of the CBA is determined by stakeholder suggestions, namely in terms of the considered assessment criteria, the physical impacts and the utilised data. Thus, this CBA is rooted in a localised consideration of ecotechnologies rather than a centralised governmental approach to systems boundaries. The key advantage of applying such a bottom-up approach is that it has gone through a robust participatory selection process by local stakeholders, which provides more legitimacy to the decisions reached compared with traditional feasibility studies. Despite considering the revenues of the recovered products as well as the provision of the non-market goods CO2 mitigation and reduced eutrophication, findings from this study indicate that the benefits of the considered ecotechnologies are often outweighed by their costs. Only anaerobic digestion of agricultural wastes appears to be economically feasible under the current conditions, highlighting that further efforts and incentives may be required to mainstream ecotechnologies.Keywords
This publication has 37 references indexed in Scilit:
- Solubility and mobility of phosphorus recycled from dairy effluents and pig manures in incubated soils with different characteristicsNutrient Cycling in Agroecosystems, 2014
- Assessing phosphate rock depletion and phosphorus recycling optionsGlobal Environmental Change, 2013
- Life cycle assessment of phosphorus alternatives for Swedish agricultureResources, Conservation and Recycling, 2012
- Phytoavailability of Copper, Zinc and Cadmium in Sewage Sludge-Amended Calcareous SoilsPedosphere, 2012
- Economic feasibility study for wastewater treatment: A cost–benefit analysisScience of The Total Environment, 2010
- Experimental study of the influence of the m. tibialis anterior on the walk-to-run transition by means of a powered ankle-foot exoskeletonGait & Posture, 2009
- The marginal utility of incomeJournal of Public Economics, 2008
- Bioavailability and plant accumulation of heavy metals and phosphorus in agricultural soils amended by long-term application of sewage sludgeChemosphere, 2007
- Rethinking Cost-Benefit AnalysisThe Yale Law Journal, 1999
- Time PreferenceInternational Economic Review, 1982