Harro von Blottnitz
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View article: Regional Mineral Beneficiation Policy Interventions in the SADC: Stakeholder Perspectives
Regional Mineral Beneficiation Policy Interventions in the SADC: Stakeholder Perspectives Open
The Importance of Mineral Beneficiation: Mining is a significant economic activity in most Southern African Development Community (SADC) countries, and mineral beneficiation has been identified and controversially discussed as one of the p…
View article: How circular is an extractive economy? South Africa's export orientation results in low circularity and insufficient societal stocks for service-provisioning
How circular is an extractive economy? South Africa's export orientation results in low circularity and insufficient societal stocks for service-provisioning Open
The circular economy is a major topic in import-dependant nations like Japan, China or the European Union, where supply security, strengthening domestic value chains and greening economic growth are key concerns. In contrast, extractive ec…
View article: SI2: How circular is an extractive economy? South Africa's export orientation results in low circularity and insufficient societal stocks for service-provisioning
SI2: How circular is an extractive economy? South Africa's export orientation results in low circularity and insufficient societal stocks for service-provisioning Open
Supporting information SI2 for the manuscript under review: How circular is an extractive economy? South Africa’s export orientation results in low circularity and insufficient societal stocks for service-provisioning It provides the data …
View article: SI2: How circular is an extractive economy? South Africa's export orientation results in low circularity and insufficient societal stocks for service-provisioning
SI2: How circular is an extractive economy? South Africa's export orientation results in low circularity and insufficient societal stocks for service-provisioning Open
Supporting information SI2 for the manuscript under review: How circular is an extractive economy? South Africa’s export orientation results in low circularity and insufficient societal stocks for service-provisioning It provides the data …
View article: A lifecycle-based evaluation of greenhouse gas emissions from the plastics industry in South Africa
A lifecycle-based evaluation of greenhouse gas emissions from the plastics industry in South Africa Open
Increased production rates of plastic and limited disposal methods have fed concerns regarding environmental degradation. Whilst most of the focus is on plastic litter and marine pollution, greenhouse gas emissions of plastic over its valu…
View article: Resource Intensity Trends in the South African Ferrochrome Industry from 2007 to 2020
Resource Intensity Trends in the South African Ferrochrome Industry from 2007 to 2020 Open
Processing resource requirements in mineral extractive industries tend to increase over time as ore grades decrease, which consequently increases the environmental footprint of operations and products. This phenomenon may be alleviated by …
View article: Evolution of value chain and governance actor responses to the plastic leakage problem in South Africa
Evolution of value chain and governance actor responses to the plastic leakage problem in South Africa Open
An estimated 15,000–40,000 tons of plastic waste leaks into the oceans from South Africa annually. This has put the management of plastic products in the spotlight. In South Africa, life cycle management (LCM) is not a term that is commonl…
View article: What material flow analysis and life cycle assessment reveal about plastic polymer production and recycling in South Africa
What material flow analysis and life cycle assessment reveal about plastic polymer production and recycling in South Africa Open
Global production and consumption of plastics have increased significantly in recent years. The environmental impacts associated with this trend have received growing attention internationally with single-use plastic packaging responsible …
View article: An estimate of construction and demolition waste quantities and composition expected in South Africa
An estimate of construction and demolition waste quantities and composition expected in South Africa Open
Construction and demolition (C&D) waste is generated from the construction, renovation, repair and demolition of the built environment. It is one of the largest waste streams and is generally not well documented or understood. Various meth…
View article: Consuming Urban Poverty Field Report No.1 Food Systems Description - Kisumu
Consuming Urban Poverty Field Report No.1 Food Systems Description - Kisumu Open
This report is based on the fieldwork undertaken in Kisumu in May 2016. The report feeds into the overall Consuming Urban Poverty (CUP) study that aims at exploring food systems in secondary cities and determine how these food systems func…
View article: Technical Analysis to support the update of South Africa’s First NDC’s mitigation target ranges (UCT 2021)
Technical Analysis to support the update of South Africa’s First NDC’s mitigation target ranges (UCT 2021) Open
This technical analysis was undertaken to support the Department of Fisheries, Forestry and Environment in updating South Africa’s 2015/16 NDC mitigation target ranges, as required of South Africa by the Paris Agreement. It forms a compani…
View article: A revised approach for estimating informally disposed domestic waste in rural versus urban South Africa and implications for waste management
A revised approach for estimating informally disposed domestic waste in rural versus urban South Africa and implications for waste management Open
A major limitation to improved waste management in South Africa lies in the paucity of reliable waste data and the exclusion of the contribution of the informal sector from reporting. Due to the disparity in the provision of formal waste m…
View article: A technological and economic exploration of phosphate recovery from centralised sewage treatment in a transitioning economy context
A technological and economic exploration of phosphate recovery from centralised sewage treatment in a transitioning economy context Open
Phosphate is one of the substances which wastewater treatment works (WWTW) have to lower in order to meet the South African regulatory discharge standard of 1 mg/L. Wastewater is increasingly viewed as a 'water-carried waste', presenting o…