Bioleaching for resource recovery from low-grade wastes like fly and bottom ashes from municipal incinerators: A SWOT analysis

Gomes, Helena I.; Funari, Valerio; Ferrari, Rebecca

doi:10.1016/j.scitotenv.2020.136945

Cited by 39 publications

(15 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with chemical leaching, bioleaching is more environment friendly. e factors affecting the bioleaching of fly ash include pretreatment, concentration of fly ash, and bacteria species [113]. Bioleaching was originally used to extract metals from minerals, and the application of bioleaching in fly ash is still relatively rare.…”

Section: Leachingmentioning

confidence: 99%

Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

Tian

Zhang

et al. 2020

Advances in Civil Engineering

View full text Add to dashboard Cite

Municipal solid waste incineration (MSWI) has been widely used due to its benefits in reducing waste and recovering energy. However, MSWI fly ash and bottom ash are increasing rapidly, causing harm to human health and the environment. This paper discussed the production process, physical and chemical properties, leaching properties, pretreatment methods, and applications of fly ash and bottom ash. By summarizing the previous literature, it is found that MSWI fly ash and bottom ash have mechanical properties similar to natural aggregate. Many beneficial attempts have been made in cement concrete aggregates, ceramic raw materials, and highway engineering materials. Due to concerns about the leaching of heavy metals in fly ash, its application in highway engineering is limited. The application of bottom ash in asphalt pavement is rare because of the side effect on the performance of asphalt mixture. Considering the solidification effect of cement on heavy metals and the low cost of fly ash and bottom ash, the application in cement-stabilized macadam base has broad application prospects. This is beneficial to reduce the construction cost and promote the process of waste incineration, especially in developing countries.

show abstract

Section: Leachingmentioning

confidence: 99%

Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

Tian

Zhang

et al. 2020

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…The combination of these factors gives rise to four possible strategies: offensive (related to strengths with opportunities), defensive (related to strengths with threats), reorientation (related to weaknesses and opportunities), and survival (related to weaknesses and threats). In the scientific literature, this tool has been used in articles on various topics such as economics and business [64][65][66], environmental sciences [67,68], or education [69][70][71].…”

Section: Methodsmentioning

confidence: 99%

Complementary Currencies: An Analysis of the Creation Process Based on Sustainable Local Development Principles

et al. 2020

View full text Add to dashboard Cite

Complementary currencies are a reality and are being applied both globally and locally. The aim of this article is to explain the viability of this type of currency and its application in local development, in this case, in a rural mountain municipality in the province of Almería (Spain) called Almócita. The Plus, Minus, Interesting (PMI); “Flying Balloon”; and Strength, Weakness, Opportunity (SWOT) analysis methodologies will be used to carry out the study. Finally, a ranking of success factors will be carried out with a brainstorming exercise. As to the results, there are, a priori, more advantages than disadvantages of implementing these currencies, but the local population has clarified that their main concern is depopulation along with a lack of varied work. As a counterpart to this and strengths or advantages, almost all the participants mention the support from the Almócita city council and the initiatives that are constantly being promoted.

show abstract

“…Although the primary outputs of the biological cycle are still food crops, soil is nonetheless vital for plants and a core biological resource that is necessary for the production of all products of the biological cycle ( Figure 2) [84]. Bio-based processes can also be used to recover resources such as energy, metals, and nutrients [85][86][87]. Phytoextraction is commonly discussed for biomining metals but the potential is presently very limited (e.g., limited to a few metals such as nickel and gold, complex and expensive processing of bio-ore compared to the market price and availability, etc.)…”

Section: Brownfields In a Circular Economy (Ce)mentioning

confidence: 99%

Greening the Browns: A Bio-Based Land Use Framework for Analysing the Potential of Urban Brownfields in an Urban Circular Economy

et al. 2020

View full text Add to dashboard Cite

The Circular Economy (CE) is expected to accelerate the use of resources with bio-based origin. Cities have an important role in such an economy, not only as main consumers but also because vegetation provides numerous ecosystem services essential for the well-being of urban dwellers. Urban lands are, however, heavily burdened with both past and present activities and ongoing urbanization. Retrofitting obsolete and potentially contaminated brownfields provides an opportunity to engage with bio-based land uses within the city. At the same time, plants are an important part of Gentle Remediation Options (GROs), a more sustainable alternative for managing contamination risks and restoring soil health. This paper (1) provides a tentative selection of Urban Greenspaces (UGSs) relevant for brownfields, and a compilation of ecosystem services provided by the selected UGSs, and (2) presents a framework covering the 14 selected bio-based land uses on brownfields, including GRO interventions over time. This framework provides three practical tools: the conceptualization of linkages between GROs and prospective UGS uses, a scatter diagram for the realization of 14 UGS opportunities on brownfields, and a decision matrix to analyze the requirements for UGS realization on brownfields.

show abstract

Bioleaching for resource recovery from low-grade wastes like fly and bottom ashes from municipal incinerators: A SWOT analysis

Cited by 39 publications

References 27 publications

Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

Complementary Currencies: An Analysis of the Creation Process Based on Sustainable Local Development Principles

Greening the Browns: A Bio-Based Land Use Framework for Analysing the Potential of Urban Brownfields in an Urban Circular Economy

Contact Info

Product

Resources

About