scholarly journals A Circular Economy for Phosphorus in Sweden—Is it Possible?

2021 ◽  
Vol 13 (7) ◽  
pp. 3733
Author(s):  
Dag Lorick ◽  
Robin Harder ◽  
Magdalena Svanström
Keyword(s):  
Biomass Production ◽  
Circular Economy ◽  
Sustainable Management ◽  
Agricultural Sector ◽  
Mining Waste ◽  
Phosphorus Concentration ◽  
Comprehensive Understanding ◽  
Mineral Phosphorus ◽  
Forestry Sector ◽  
Stocks And Flows

More sustainable management of phosphorus requires comprehensive understanding of phosphorus stocks and flows. With the purpose of shedding light on the possibilities for an increased level of recirculation of phosphorus in Sweden, phosphorus flows entering and exiting biomass production sectors were quantified along with waste flows, that is, flows that are not currently utilized in biomass production. Relevant waste flows were also characterized in terms of phosphorus concentration, plant availability, contamination and geo-spatial distribution. The theoretical recirculation potential of phosphorus in Sweden was then estimated. The results indicate that there is a large potential for making phosphorus management more circular, especially regarding the utilization of phosphorus in sewage sludge as well as wood ashes from the forestry sector. Moreover, there is a large amount of phosphorus in mining waste that could potentially be used for fertilizer production. It is concluded that the amount of phosphorus in flows fit for recirculation in forestry could more or less balance today’s output. In agriculture, however, recirculation can only sufficiently replace imported mineral phosphorus at current demand if the phosphorus in mining waste is utilized. Thus, if the goal is to replace all of the mineral phosphorus, the agricultural sector also has to become much more efficient in its phosphorus usage.

scholarly journals Efficiency of Recycled Biogas Digestates as Phosphorus Fertilizers for Maize

Agriculture ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 553
Author(s):  
Inga-Mareike Bach ◽  
Lisa Essich ◽  
Torsten Müller
Keyword(s):  
Biomass Production ◽  
Plant Biomass ◽  
Nutrient Content ◽  
Phosphorus Concentration ◽  
Available Phosphorus ◽  
Phosphorus Fertilizers ◽  
Future Supply ◽  
Application Techniques ◽  
Phosphorus Recycling ◽  
Fertilizing Effect

Despite phosphorus resources on Earth being limited, over fertilization in many agricultural situations causes significant resource consumption. Phosphorus-recycling within agricultural production can reduce global dilution into the environment and is thus essential to secure sustainable future supply. This study investigated the fertilization efficacy of phosphorus fertilizers recycled from biogas digestates in maize shoots grown under controlled greenhouse conditions, in two soils, in a pot experiment. Variables investigated were plant-available phosphorus in soil, plant biomass production, and concentration of phosphorus, calcium, and magnesium in shoots. Soils were treated with three different fertilizer fractions, separated from biogas digestates, at equivalent phosphorus concentrations, using different combinations and application techniques, isolated or in combination, and compared to triple superphosphate (TSP) as a reference. One of the fractions (P-Salt) had effects on biomass production and plant phosphorus concentration equivalent to TSP in agricultural surface soil. In the second soil (with less active soil life and nutrient content), equivalence to TSP was achieved with combinations of two recycled fractions (P-Salt and dried solids). The enhancement of the phosphorus fertilizing effect by the solids was synergistic, indicating that the solids had a soil conditioning effect. The results show that biogas digestates are a valuable source for phosphorus recycling of fractions that have equivalent or even superior fertilizing properties compared to TSP.

scholarly journals The ‘3CE2CE’ Framework—Change Management Towards a Circular Economy: Opportunities for Agribusiness

2021 ◽  
Author(s):  
Nan-Hua Nadja Yang ◽  
Ana Carolina Bertassini ◽  
Jéssica Alves Justo Mendes ◽  
Mateus Cecílio Gerolamo
Keyword(s):  
Content Analysis ◽  
Literature Review ◽  
Change Management ◽  
Circular Economy ◽  
Agricultural Sector ◽  
Implementation Process ◽  
Managerial Practices ◽  
Depth Analysis ◽  
The Common ◽  
Transformation Processes

AbstractFor the transition towards a circular economy (CE), organisations have to be prepared to adapt to major changes. Thus, the concept and implementation of change management (CM) will be essential to an organisation’s success during this transformative period. Studies have shown that organisational CE barriers were more significant than individual CE barriers. To overcome such obstacles, the most appropriate set of managerial practices should be carefully considered. These barriers also have the potential to influence the agricultural sector, which seeks to adopt more sustainable ways of production. The goal of this paper is to propose a solution framework based on CM strategies to overcome organisational challenges posed by a CE, especially for agribusinesses. To accomplish this objectively, a systematic literature review and a content analysis were conducted. The common errors in CM within the implementation process and the main CE barriers were identified and classified. An in-depth analysis of the issue’s roots led to a solid understanding of how to tackle such CM problems. This paper presents an overview of organisational CE barriers verified in the agricultural context, the common errors in CM, and the correlation between these findings. The two areas were then combined in a matrix that shows the connection between common errors in CM errors and CE barriers. Based on this result, a solution framework called 3CE2CE was developed that provides a step-by-step guide on how organisations can successfully undergo transformation processes towards a CE with the principles of CM.

Making the Case for Reforms of Forestry Policy and Law: Lessons and Experiences from Nigeria

2021 ◽  
pp. 1-9
Author(s):  
Bola Fajemirokun
Keyword(s):  
Sustainable Development ◽  
Forest Management ◽  
Sustainable Management ◽  
Sustainable Development Goals ◽  
Sustainable Forest Management ◽  
Terrestrial Ecosystems ◽  
Forestry Policy ◽  
2030 Agenda ◽  
Forestry Sector ◽  
Development Goals

The 2030 Agenda for Sustainable Development incorporates 17 Sustainable Development Goals (SDGs). Goal 15 (SDG 15) focuses on terrestrial ecosystems. Regarding forests, it sets targets requiring signatories to promote the implementation of the sustainable management of all types of forests by 2020 and further mobilize significant resources from all sources to achieve sustainable forest management. The United Nations Strategic Plan for Forests 2017 – 2030 advances the vision of SDG 15. Nigeria’s high demographic growth rate has led to the surging demand for land to support settlements and farming. Coupled with extensive illegal or uncontrolled logging, the annual forest net loss of 5% is one of the highest rates globally in percentage terms. This paper is a critical analysis of the policy-law interface of the forestry sector in Nigeria. It examines the country’s trajectory or state of preparedness for sustainable forest management, and it concludes that forestry policy and law in Nigeria must undergo urgent reforms so that the forest commitments such as those under SDG 15 and other regional and global instruments can be ultimately achieved.

The impacts of COVID-19 on the sustainable management of the forestry sector in Southern Africa

2021 ◽  
Vol 23 (3) ◽  
pp. 298-308
Author(s):  
P.W. Chirwa ◽  
J.M. Kamwi ◽  
G. Kabia ◽  
L. Makhubele ◽  
W. Sagona ◽  
...  
Keyword(s):  
Forest Management ◽  
Southern Africa ◽  
Sustainable Management ◽  
Sustainable Forest Management ◽  
Land Uses ◽  
Illegal Logging ◽  
Forest Production ◽  
Forestry Sector ◽  
The Impact ◽  
Targeted Approach

The objective of the study was to examine the impact of the COVID-19 pandemic on sustainable forest management in southern Africa. The study employed a targeted approach, also referred to as purposive sampling, to select respondents from the various sectors. The results show that COVID-19 had an 80% impact on forest management operations. The COVID-19 pandemic did not have a significant effect on the conversion of land from forest to other land uses. However, there was severe illegal logging and moderate to severe fires. The COVID-19 pandemic also had a severe impact on the agriculture, environment and ecotourism sectors, with nature reserves completely closed. From the forest production perspective, the impact of COVID-19 on production, supply, demand and the price of timber was generally low due to the commercial nature of the forestry sector in South Africa; the largest economy in SADC being classified as an essential sector.

Mine waste reuse and reprocessing: an important step for the implementation of the circular economy in Europe

2021 ◽  
Author(s):  
Françoise Bodénan ◽  
Yannick Ménard ◽  
Patrick d'Hugues
Keyword(s):  
Circular Economy ◽  
Mine Waste ◽  
Construction Materials ◽  
Mining Industry ◽  
Mining Waste ◽  
Management Approach ◽  
Secondary Resources ◽  
Mineral Fraction ◽  
Long Term Treatment

<p>Whereas there are growing needs for mineral resources (metals for the energy and digital transitions<br>and construction materials), the mining industry must produce them from poorer, more<br>heterogeneous and more complex deposits. Therefore, volumes of mine waste produced (including<br>tailings) are also increasing and add up to waste from mining legacy. For example in Europe (x27): 732<br>Mtons of extractive waste are generated per year and more than 1.2 Btons of legacy waste are stored<br>all over the European territory. The localisation (and potential hazards) are well known and covered<br>by the inventories carried out in EU countries under the Mining Waste Directive.<br>At the same time, Europe is implementing the circular economy approach and put a lot of emphasis<br>on the resource efficiency concept. In this context, reprocessing operation to recover both metals and<br>mineral fraction is studied with the objective of combing waste management (reducing final waste<br>storage and long-term impact) and material production from secondary resources.<br>Numerous industrial experiences of reprocessing of mine waste and tailings exist all over the world to<br>recover metals such as copper, gold or critical raw materials - CRM They concern mainly active mine<br>where both primary and secondary resources are considered in profitable operations; for example in<br>Chile, South Africa, Australia. Mineral fraction recovery is often not considered which still leaves the<br>industry with a high volume of residual minerals to store and manage.<br>In addition, legacy mining waste are potentially available for reprocessing. In this case, numerous<br>mining liabilities issues need to be managed. Some of the European legacy mining waste have residual<br>valuable metals that could be recovered but some of them have very low metal contents. In Europe,<br>classical rehabilitation operations – usually at the charge of member states and local authorities – is<br>the priority and concern the reduction of instabilities and impacts to the environment including heap<br>remodelling, covering and water management with long-term treatment. Completing this risk<br>management approach by a circular economy one is a very active R&D subject in EU27.<br>This presentation will give an overview of EU research projects which tackled the legacy mining waste<br>challenge from inventory to process development. Several process flowsheets to recover metals were<br>designed and tested on several case studies with CRM – REE, Co, W, Sb, etc. Initiatives to reuse mineral<br>fraction are also underway and should be ready for commercialisation in the coming years.<br>Resources efficiency concept and the circular economy implementation starts on mining sites. In order<br>to facilitate the implementation of this approach, the technical solutions will need to be included in<br>innovative global initiatives covering also legal (liability management), environmental (Life Cycle<br>Analysis approaches) and social (acceptance) questions.</p>

Sustainable management of spent fluid catalytic cracking catalyst from a circular economy approach

2020 ◽  
Vol 110 ◽  
pp. 10-19 ◽  
Author(s):  
Bernabé Alonso-Fariñas ◽  
Mónica Rodríguez-Galán ◽  
Celia Arenas ◽  
Fátima Arroyo Torralvo ◽  
Carlos Leiva
Keyword(s):  
Circular Economy ◽  
Catalytic Cracking ◽  
Sustainable Management ◽  
Fluid Catalytic Cracking

Miejsce odpadów drzewnych w gospodarce cyrkularnej

2018 ◽  
Vol XI ◽  
pp. 141-150
Author(s):  
Monika Jakubus
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Circular Economy ◽  
Sustainable Management ◽  
European Directive ◽  
Polish Law

The paper presents the problem of wood wastes and wood management in Poland. The overview of obligatory European directive and Polish law acts dedicated to wood wastes was presented. The special attention was focused on the actual problems concerned with the introduction of the circular economy and Life Cycle Assessment. The current Polish classification of wood wastes was shown. Moreover, the present sustainable management of wood wastes and raddled wood was analysed.

An executive's handbook for understanding and risk managing unit linked guarantees

2012 ◽  
Vol 17 (1) ◽  
pp. 71-125 ◽  
Author(s):  
J. Maher ◽  
J. Corrigan ◽  
A. Bentley ◽  
W. Diffey
Keyword(s):  
Capital Markets ◽  
Sustainable Management ◽  
Balance Sheet ◽  
Market Risk ◽  
Comprehensive Analysis ◽  
Senior Executive ◽  
Comprehensive Understanding ◽  
Micro Structure ◽  
Executive Summary ◽  
First Order

AbstractThe focus of this paper is the identification, and more importantly, sustainable management, of risks embedded in guarantees attaching to unit linked savings and retirement contracts (as commonly referred to as GMxBs). In developing customer centric guarantees that are not readily transferrable to the capital markets, insurance undertakings require the skills and resources to hedge the guarantees within their own balance sheet (or with a temporary use of packaged solutions such as reinsurance). In taking on the guarantee manufacture task insurers are departing from areas of historic competence and need to develop a comprehensive understanding of all elements of market risk replication. These include both first order market exposures as well as the material second order risks associated with market micro structure. The paper seeks to integrate this comprehensive analysis within a practitioner focused framework and concludes with a senior executive summary of “Seven key considerations in successful guarantee manufacture”.

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