| 1. |
- Stigson, Peter, 1974-, et al.
(författare)
-
The ambitions in Copenhagen Pledges : Country case studies of drivers and barriers
- 2013
-
Ingår i: Greenhouse Gas Measurement and Management. - : Informa UK Limited. - 2043-0779 .- 2043-0787. ; 3:1-2, s. 21-36
-
Tidskriftsartikel (refereegranskat)abstract
- The climate pledges under the Copenhagen Accord have been evaluated by researchers in quantitative terms, but less attention has been provided on insights into what drove countries and what political barriers impeded countries to submit a pledge and the ambitiousness of the pledges. This article therefore highlights what the drivers and barriers are under the Copenhagen Accord and assesses whether the political considerations can be expected to differ from the positions under a binding climate regime under the United Nations Framework Convention on Climate Change. By means of case studies the research finds that the political origin differs and in general views that the Accord is viewed as adding to transparency and legitimacy of the negotiations. Moreover, while the pledges can be viewed as a separate regime, it should be complemented by emissions trading to spur increased ambition. The research also identifies that the pledges are commonly viewed as binding and that barriers are increasingly viewed as drivers seeing that costs of climate action is viewed as lower than inaction.
|
|
| 2. |
- Warneryd, Martin, et al.
(författare)
-
Microgrid communities: disclosing the path to future system-active communities
- 2022
-
Ingår i: Sustainable Futures. - Göterborg : IVL Svenska Miljöinstitutet AB. - 2666-1888. ; 4, s. 100079-100079
-
Tidskriftsartikel (refereegranskat)abstract
- To increase sustainability in future energy systems, both technical and social measures must be taken. Microgrid communities offer local balancing of supply and demand, while also integrating the community as an active part of the energy system. This study investigates two cases of microgrid communities; how they were realized and what wider effects they offered its communities and other stakeholders. The study shows that the microgrid collaboration between community and utility offers a new organizational division that can overcome the traditional locked-in position of the utility. This brings forward communities as system-active participants and a sustainably beneficial energy system for the future.
|
|
| 3. |
- Shahbazi, Sasha, et al.
(författare)
-
Using the Green Performance Map: Towards Material Efficiency Measurement
- 2019
-
Ingår i: Operations Management and Sustainability. - Cham : Springer International Publishing. - 9783319932118 - 9783319932125 ; , s. 247-269, s. 247-269
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Previous environmental studies indicate several barriers to circular economy and material efficiency including a lack of detailed methodologies for manufacturing improvement in terms of environmental and operational performances to measure, monitor and evaluate material consumption and waste generation. A lean and green tool, the green performance map (GPM), is an appropriate tool for different environmental initiatives including training, improvement, reporting and development. Through literature review and multiple case study methodology, this chapter presents the current application of GPM in industry and its usage to regularly measure and monitor material efficiency measurements on different levels and to remove barriers to improved material efficiency.
|
|
| 4. |
- Shahbazi, Sasha, et al.
(författare)
-
Material efficiency in manufacturing: swedish evidence on potential, barriers and strategies
- 2016
-
Ingår i: Journal of Cleaner Production. - : Elsevier BV. - 0959-6526 .- 1879-1786. ; 127, s. 438-450
-
Tidskriftsartikel (refereegranskat)abstract
- Improved material efficiency is a key to improve the circular economy and capturing value in industry. Material efficiency reduces the generation of industrial waste, the extraction and consumption of resources, and energy demands and carbon emissions. However, material efficiency in the manufacturing sector, as a means of improving the recyclability, reusability, reduction and prevention of industrial waste, is little understood. This study aims to investigate, on a micro-level, further material efficiency improvement opportunities, barriers and strategies in selected manufacturing companies in Sweden, focusing on increasing waste segregation into high quality circulated raw material. Improvement opportunities at large global manufacturing companies are investigated; barriers hindering material efficiency improvement are identified and categorized at two levels; and strategies that have been deployed at manufacturing companies are reviewed. Empirical findings reveal (1) further potential for improving material efficiency through higher segregation of residual material from mixed and low quality fractions (on average, 26% of the content of combustible waste, in weight, was plastics; 8% and 6% were paper and cardboard, respectively); (2) the most influential barriers are within budgetary, information, management, employee, engineering, and communication clusters; (3) a lack of actual material efficiency strategy implementation in the manufacturing companies. According to our analysis, the majority of barriers are internal and originate within the manufacturing companies, therefore they can be managed (and eradicated if possible) with sufficient resources in terms of man hours, education and investment, better operational and environmental (waste) management, better internal communication and information sharing, and deployment of material efficiency strategies.
|
|
| 5. |
- Mutafela, Richard N., 1984-, et al.
(författare)
-
Radiometrical and physico-chemical characterisation of contaminated glass waste from a glass dump in Sweden
- 2020
-
Ingår i: Chemosphere. - : Elsevier BV. - 0045-6535 .- 1879-1298. ; 241
-
Tidskriftsartikel (refereegranskat)abstract
- Around former glass factories in south eastern Sweden, there are dozens of dumps whose radioactivity and physico-chemical properties were not investigated previously. Thus, radiometric and physico-chemical characteristics of waste at Madesjö glass dump were studied to evaluate pre-recycling storage requirements and potential radiological and environmental risks. The material was sieved, hand-sorted, leached and scanned with X-Ray Fluorescence (XRF). External dose rates and activity concentrations of Naturally Occurring Radioactive Materials from 238U, 232Th series and 40K were also measured coupled with a radiological risk assessment. Results showed that the waste was 95% glass and dominated by fine fractions (<11.3 mm) at 43.6%. The fine fraction had pH 7.8, 2.6% moisture content, 123 mg kg−1 Total Dissolved Solids, 37.2 mg kg−1 Dissolved Organic Carbon and 10.5 mg kg−1 fluorides. Compared with Swedish EPA guidelines, the elements As, Cd, Pb and Zn were in hazardous concentrations while Pb leached more than the limits for inert and non-hazardous wastes. With 40K activity concentration up to 3000 Bq kg−1, enhanced external dose rates of 40K were established (0.20 μSv h−1) although no radiological risk was found since both External Hazard Index (Hex) and Gamma Index (Iγ) were <1. The glass dump needs remediation and storage of the waste materials under a safe hazardous waste class ‘Bank Account’ storage cell as a secondary resource for potential future recycling. © 2019 Elsevier Ltd
|
|
| 6. |
- Waara, Sylvia, et al.
(författare)
-
Performance of a constructed wetland system for treatment of landfill leachate.
- 2008
-
Ingår i: Waste 2008. Waste and Resource management-A shared responsibility. - Stanton-on-the-Wolds : Waste Conference Ltd.. ; , s. 655-667, s. 655-667
-
Konferensbidrag (refereegranskat)abstract
- The performance of a constructed wetland for treatment of landfill leachate has been evaluated based upon data obtained during 4 years (2003-2006). It consists of a series of 10 ponds with a total capacity of 52.000 m3 covering 8 ha. Using univariate and multivariate statistics (PCA) the reduction pattern of a large number of chemical parameters including heavy metals has been investigated in 3 parts of the wetland with equal volume. Analyses show that many parameters are removed to the greatest extent in the first part of the system (e.g. many heavy metals, total suspended solids) or the second part of the system (N-NH4) while other parameters such as total nitrogen are more gradually reduced (10 ton/year removed). Toxicity testing with 5 bioassays showed that toxicity was sometimes observed at the inlet but no toxicity was observed at the outlet for 4 of the test species. The data presented will be used for optimizing the treatment process as well as to improve the monitoring program.
|
|
| 7. |
- Elgh-Dalgren, Kristin, et al.
(författare)
-
Anaerobic bioremediation of a soil with mixed contaminants : Explosives degradation and influence on heavy metal distribution, monitored as changes in concentration and toxicity
- 2009
-
Ingår i: Water, Air and Soil Pollution. - Dordrecht : Springer Netherlands. - 0049-6979 .- 1573-2932. ; 202:1-4, s. 301-313
-
Tidskriftsartikel (refereegranskat)abstract
- Two soils with explosives and metals were evaluated for the degradation efficiency of explosives by native microorganisms under anaerobic conditions. The commercially available method Daramend®, amended with zero-valent iron (ZVI), was compared with a horse-manure amended compost and a treatment with ZVI alone. In a moderately contaminated soil, Daramend® and ZVI treatment gave significantly higher removal rates compared to compost and control treatments (Tukey’s test, P<0.05). The largest overall decrease in ecotoxicity, measured with bioluminescent bacteria (Vibrio fischeri), was achieved with ZVI-treatment. In a more contaminated soil no degradation of contaminants and no decline in soil toxicity could be distinguished after the same time period. Problems with establishment of anaerobic conditions during parts of the remediation process and low microbial activity due to acute toxicity of contaminants are plausible explanations. Redistribution that could potentially lead to mobilization of the co-contaminant Pb was not observed in either of the soils during the biological treatments.
|
|
| 8. |
|
|
| 9. |
- Burlakovs, J., et al.
(författare)
-
Application of anaerobic digestion for biogas and methane production from fresh beach-cast biomass
- 2022
-
Ingår i: 3rd EAGE Global Energy Transition, GET 2022. - : European Association of Geoscientists and Engineers, EAGE. - 9781713863618 ; , s. 61-65, s. 1-5
-
Konferensbidrag (refereegranskat)abstract
- In this research, biogas production potential from beach wrack collected in Riga Gulf (Ragaciems, Jaunķemeri, Bigauņciems) and in coastline of Sweden (Kalmar) was studied using an anaerobic digestion method. Selected beach wrack masses laying ashore and containing macroalgal biomass of common macroalgae types specific to the Baltic Sea were mixed for consolidated samples. Anoxic fermentation of untreated beach wrack was carried out in 16 bioreactors applying a single filling mode at 38 °C. The study revealed that by utilizing beach wrack accumulated ashore as a feedstock for anaerobic digestion methane can be utilized if pretreatment and conditioning of the samples are performed. The study was continued for selected brown algae containing biomass tested with three dewatering pretreatment methods: a) keeping in tap water for 24 hours; b) washing with running fresh water for one hour, and c) drying to relatively constant weight. The resulting methane outcome was compared with the data corresponding to raw brown algae. The study confirmed that washing of macroalgal biomass applied as pretreatment prior to anaerobic fermentation avoids inhibition of salts and promotes biomethane production.
|
|
| 10. |
- Burlakovs, Juris, 1977-, et al.
(författare)
-
Geophysical aspects of abandoned landfill geomorphological and material properties macro-characterization
- 2020
-
Ingår i: International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM. - : International Multidisciplinary Scientific Geoconference. - 9786197603057 ; , s. 551-558
-
Konferensbidrag (refereegranskat)abstract
- Landfills (dumps) are places where the end of the life cycle of products can be found - useful material is dumped away from the sight creating contaminant flows around. Another problem is huge unexplored potential of resources recycling - we have limited knowledge also on useful elements and materials that are buried. The solution to overcome the limitations that provide remote sensing and traditional geodesy, proximal sensing techniques could be used. “Near surface geophysics” with operation at or just below the soil surface, significantly may contribute to give answers that traditionally are solved only after excavation. Geophysical methods are various, those can be active (i.e. create its own signal) or passive (i.e. register an existing signal); invasive (by inserting devices into the soil) or non-destructive. Some of these methods are static (e.g. a sequence of inserted electrodes), others can be used in a mobile way (e.g. pulled by a quad-bike). In general, their depth of exploration can vary from a few decimetres to some tens of metres. Thus in range of wide geophysical methodology spectrum almost all methods might be of use for unknown dump exploration depending on circumstances. In this paper, the aim is to macro-characterize anthropogenic geomorphological forms for contouring of old buried dumps by use of magnetometry, and geoelectric research methods to provide knowledge on approximate content of the dump. Protonmagnetometer was used in Eastern Latvia to determine unseen on surface dumpsite, buried in forest; induced polarisation and electric resistivity research was done in Southern Sweden for the macro-content analysis of dump hills composed of glass industry residuals and construction waste mixture. Geophysical surveying was performed to support site investigation with respect to landfill-related environmental problems, to enhance the opportunity for contouring of location of material mass and initially evaluate its physical properties. Results have shown good potential of geophysical surveying to spatially characterize landfill masses (location and dimensions) and to identify the internal structure of a landfill site, which already provides valuable information to estimate the landfill mining (material recovery) potential of landfills.
|
|
