Processing of Bio-ore to Products

Simonnot, Marie-Odile; Vaughan, James; Laubie, Baptiste

doi:10.1007/978-3-319-61899-9_3

Cited by 25 publications

(21 citation statements)

References 44 publications

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“…The Ni-agromining chain consists of two stages: (1) the cultivation of hyperaccumulator plants to obtain sufficient aerial biomass with a high Ni concentration and (2) the transformation of the biomass to obtain valuable end-products. Both in-situ and ex-situ experiments were carried out in Albania, Spain, Austria and Greece, and Ni has been successfully recovered from bio-ores in pure form, as a mineral salt (ammonium nickel sulphate hexahydrate) or as eco-catalysts (Simonnot et al 2018).…”

Section: Technologies and Productsmentioning

confidence: 99%

A review of nature-based solutions for resource recovery in cities

Kisser¹,

Wirth²,

Gusseme

et al. 2020

Blue-Green Systems

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Our modern cities are resource sinks designed on the current linear economic model which recovers very little of the original input. As the current model is not sustainable, a viable solution is to recover and reuse parts of the input. In this context, resource recovery using nature-based solutions (NBS) is gaining popularity worldwide. In this specific review, we focus on NBS as technologies that bring nature into cities and those that are derived from nature, using (micro)organisms as principal agents, provided they enable resource recovery. The findings presented in this work are based on an extensive literature review, as well as on original results of recent innovation projects across Europe. The case studies were collected by participants of the COST Action Circular City, which includes a portfolio of more than 92 projects. The present review article focuses on urban wastewater, industrial wastewater, municipal solid waste and gaseous effluents, the recoverable products (e.g., nutrients, nanoparticles, energy), as well as the implications of source-separation and circularity by design. The analysis also includes assessment of the maturity of different technologies (technology readiness level) and the barriers that need to be overcome to accelerate the transition to resilient, self-sustainable cities of the future.

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Section: Technologies and Productsmentioning

confidence: 99%

A review of nature-based solutions for resource recovery in cities

Kisser¹,

Wirth²,

Gusseme

et al. 2020

Blue-Green Systems

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“…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.) [88][89][90][91][92]. Novel processes, such as biosorption and bioleaching, are now being explored within the CE framework for extracting metals and other resources from waste [93].…”

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

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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.

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“…The European Innovation Partnership (EIP) classified Ni as a raw material with high economic importance and Ni agromining was proven to be efficient in the 2000's and became a real market opportunity in 2007 (Chaney et al, 2007;Tang et al, 2012;Bani et al, 2015a). Nickel has been successfully recovered from bio-ores in pure form, as a mineral salt (ANSH, ammonium nickel sulfate hexahydrate), or as eco-catalysts (Simonnot et al, 2018). Nickel-hyperaccumulator plants are ideal candidates for Ni agromining due to their unusual ability to bioconcentrate and purify Ni from ultramafic soils.…”

Section: The Concept Of Agrominingmentioning

confidence: 99%

“…The resulting ash is a real bio-ore, containing up to 20 wt % of Ni. In step 2, it has been proven possible to obtain a bunch of Ni compounds (e.g., Ni metal, Ni-based catalysts, Ni salts or oxides) by hydrometallurgical processes (Simonnot et al, 2018). Energy is potentially another end product of agromining.…”

Section: Processing Biomass From Ni-hyperaccumulator Plantsmentioning

confidence: 99%

Developing Sustainable Agromining Systems in Agricultural Ultramafic Soils for Nickel Recovery

Kidd

Bani

Benizri

et al. 2018

Front. Environ. Sci.

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Ultramafic soils are typically enriched in nickel (Ni), chromium (Cr), and cobalt (Co) and deficient in essential nutrients, making them unattractive for traditional agriculture. Implementing agromining systems in ultramafic agricultural soils represent an ecological option for the sustainable management and re-valorisation of these low-productivity landscapes. These novel agroecosystems cultivate Ni-hyperaccumulating plants which are able to bioaccumulate this metal in their aerial plant parts; harvested biomass can be incinerated to produce Ni-enriched ash or "bio-ore" from which Ni metal, Ni ecocatalysts or pure Ni salts can be recovered. Nickel hyperaccumulation has been documented in ∼450 species, and in temperate latitudes these mainly belong to the family Brassicaceae and particularly to the genus Odontarrhena (syn. Alyssum pro parte). Agromining allows for sustainable metal recovery without causing the environmental impacts associated with conventional mining activities, and at the same time, can improve soil fertility and quality and provide essential ecosystem services. Parallel reductions in Ni phytotoxicity over time would also permit cultivation of conventional agricultural crops. Field studies in Europe have been restricted to Mediterranean areas and these only evaluated the Ni-hyperaccumulator Odontarrhena muralis s.l. Two recent EU projects (Agronickel and LIFE-Agromine) have established a network of agromining field sites in ultramafic regions with different edapho-climatic characteristics across Albania, Austria, Greece and Spain. Soil and crop management practices are being developed so as to Kidd et al. Sustainable Agromining Systems for Nickel Recovery optimize the Ni agromining process; field studies are evaluating the potential benefits of fertilization regimes, crop selection and cropping patterns, and bioaugmentation with plant-associated microorganisms. Hydrometallurgical processes are being up-scaled to produce nickel compounds and energy from hyperaccumulator biomass. Exploratory techno-economic assessment of Ni metal recovery by pyrometallurgical conversion of O. muralis s.l. shows promising results under the condition that heat released during incineration can be valorized in the vicinity of the processing facility.

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Processing of Bio-ore to Products

Cited by 25 publications

References 44 publications

A review of nature-based solutions for resource recovery in cities

A review of nature-based solutions for resource recovery in cities

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

Developing Sustainable Agromining Systems in Agricultural Ultramafic Soils for Nickel Recovery

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