13 September, 2019 | Resource and waste management
Prof David C Wilson took part in a panel discussion at the RWM with CIWM exhibition and conference at the NEC in Birmingham this week. He made the point that while we already know what needs to be done to extend municipal solid waste management services to the unserved half of the World’s population, the UN sustainable development goals (SDGs) are critical to unlocking the political will to make it happen.
Extending waste collection to everyone and eliminating open dumping and burning would specifically address targets under SDGs 11 (sustainable cities), 12 (responsible consumption and production) and 6 (clean water and sanitation). But it would also halve the quantities of plastics reaching the oceans (SDG14 life below water) and contribute to climate mitigation (SDG13) and public health (SDG3). Local recycling would also contribute significantly to SDG8 (livelihoods) and SDG1 (end poverty).
DCW is currently drafting a chapter on SDGs as a driver for change, for an upcoming Routledge Handbook on the circular economy.
28 January, 2019 | Publication, Resource and waste management
Professor David C Wilson has been working for the last two years with the Rwandan academic Telesphore Kabera to apply the Wasteaware indicators to benchmark performance of the solid waste management (SWM) and recycling system in Kigali, the capital of Rwanda. Their results form the basis of a paper published today in the first ever open access issue of the long established ISWA peer-reviewed journal Waste Management & Research. The paper uses previously unpublished results from the Wasteaware database to compare Kigali’s performance with four other East African capital cities – Dar-es-Salaam, Kampala, Nairobi and Maputo.
The Wasteaware benchmark indicators grew out of work originally carried out for UN-Habitat’s Soild Waste Management in the World’s Cities (2010). They provide a standardised method to characterise the performance of a city’s SWM and recycling system across some 15 indicators, some quantitative and some qualitative, covering both waste generation, the physical aspects of waste and resource management, and various governance aspects. Results for the first 40 cities were used extensively in UNEP and ISWA’s inaugural Global Waste Management Outlook (2015). They are now being applied widely, both to characterise the baseline position in a city; to identify priority areas for improvement; and to monitor progress over time.
From this paper on East Africa, the stand-out result is the relatively high collection coverage achieved in two of the cities: in Maputo with extensive international technical assistance, and in Kigali using its own local resources. In both cases, governance factors are key. Kigali uses a public-private partnership (PPP), with exclusive franchises in 35 sectors being tendered every three years; households pay an affordable fee depending on their ability to pay (the service is free to the poorest category); 95% fee collection rates are achieved, partly through co-collection with charges for local security patrols, which is a service people value highly given the recent history of the country.
Another key priority to improve solid waste management across East Africa is to eliminate open dumping – only Kampala currently has an engineered disposal site. Recycling rates also need to be increased – only Nairobi currently has a good baseline to build on (30%). Common weaknesses include a lack of segregation at source; and of institutional capacity and of available and reliable waste data.
19 December, 2018 | Publication, Resource and waste management
Professor David C. Wilson’s final contribution to the CIWM Journal took the form of an interview in which he looked back on his Presidential year. This web-posting also includes an index of and links to his monthly columns for the CIWM journal, many of which were ‘think-pieces’ on issues in which he has been involved for years or even decades. Among the questions covered in the final interview were: has any topic dominated the year (yes, plastics – both marine plastics and the ‘China ban’); and what would be your advice to Enda Kiernan and future CIWM Presidents (‘Be true to yourself’ – which the editor also used as this month’s headline).
Interviews and DCW’s theme for the year:
- Dec 2018: ‘Be true to yourself’. DCW looks back on his year as president. PDF attached at end of post.
- Dec 2017: A key utility service. DCW revisited his Presidential address to further explain his key themes for the year ahead. The overarching theme was to have solid waste management recognised as an essential utility service.
- Nov 2017: One small step. The editor Ben Wood introduced DCW, his story in waste and his hopes for his Presidential year. PDF attached at end of post.
- Oct 2018: Plastics – diabolic or fantastic? How to respond to the crisis of plastics entering our oceans? Which plastic uses are diabolic and which fantastic?
- Jun 2018: How to influence people. DCW reported on CIWM’s role in influencing the UK’s initiative on marine plastics which was announced at the Commonwealth Heads of Government Meeting in London in April 2018.
- Apr 2018: China – coming full circle. In the wake of the current China-induced recycling crisis in the West, DCW gave his personal perspective on China’s journey in waste management and recycling over the last 30-40 years and moving forward…
- Feb 2018: Turning the tide. Where do plastics entering the ocean come from, and how do we turn the tide?
Promoting waste reduction and recycling:
- Sep 2018: Charge! DCW reflected on the challenges of devising the right policies to charge households for solid waste management services
- May 2018: Revaluing recycling. DCW argued that we need to rethink recycling if it is to become sustainable and proposed a framework for doing so, by considering the embodied social, environmental and technical values alongside the market price.
- Jan 2018: Inspiring reuse. DCW showcased the five inspiring projects shortlisted for Best Reuse or Waste Prevention Project at the CIWM Sustainability and Resource Awards 2017.
Waste and climate
- Jul 2018: Don’t waste our climate. DCW made the case for resource and waste management as an entry point to achieve significant climate mitigation. The article was subsequently re-published by the National Solid Waste Association of India (NSWAI) in their member journal Waste Monitor in July 2019.
- Website May 2018: Uncontrolled burning of solid waste as a significant contributor to climate change. DCW reported on current research at Imperial College London.
Tackling the global waste crisis
- Website Nov 2018: DCW awards his Presidential Medal to Mike Webster, Founder and CEO of the charity Wasteaid.
- Website Oct 2018: Tackling the global waste crisis through community waste management. DCW reported on two papers in the peer-reviewed literature, which follow-up on the CIWM-Waste aid toolkit Making Waste Work.
- Dec 2017: A key utility service. A key theme for DCW’s Presidential year was to highlight the global waste crisis, the 3 billion people who lack access to basic SWM services.
- Website Nov 2017: DCW launches toolkit for community waste management. Introducing DCW’s Presidential Report, the CIWM-Wasteaid Toolkit Making Waste Work. The Toolkit includes a dozen How-to-do-it Guides to enable local entrepreneurs to implement simple technologies using organics and low-value plastics in the waste.
Other DCW areas of interest or ‘hobby horses’:
- Aug 2018: Hazardous waste – plus ça change. DCW reflected on 40 years of involvement with hazardous waste policy, and concluded that the current and future challenges identified by CIWM’s Hazardous Waste Special Interest Group have changed relatively little over the years.
- Mar 2018: Let’s skip “the tip”. DCW argued that terms such as “the tip”, “rubbish”, “refuse” and arguably “tipping”, have no place in the vocabulary of the professional waste and resource manager.
14 October, 2018 | Publication, Resource and waste management
According to the UNEP and ISWA’s Global Waste Management Outlook (GWMO), three billion people lack access to basic solid waste management (SWM) services; addressing this global waste crisis would not only vastly improve their lives but also halve the weight of plastics entering the oceans. Professor David C Wilson and Mike Webster of Wasteaid made the case earlier this year, in an open access editorial in the ISWA journal Waste Management & Research, for community waste management as a ‘bottom up’ approach, to run in parallel to traditional ‘top-down’ approaches led by donors and governments.
Community waste management aims to help local communities in the poorest countries, where the local authority often has no funds to provide a SWM service, to tackle the problem themselves through the resource value in the wastes. If, for example, food wastes or low-value plastics are kept separate, they can be turned into new, useful products. With simple tools and the right knowledge, people can become self-employed recycling entrepreneurs, providing a very valuable service for the health and wellbeing of their community, and the whole planet – as well as reducing poverty and creating sustainable livelihoods.
One of the gaps identified by the GWMO was for practical guidance on such low-cost ‘waste to wealth’ technologies which involve minimal capital investment and make products to sell in a local market. DCW’s CIWM Presidential Report aimed to plug that gap: Wasteaid prepared a Toolkit, including a dozen How-to-do-it Guides for simple technologies using organics and low-value plastics.
While preparing the Toolkit, we identified a parallel requirement, for the scientific underpinning of some of the technologies. This month sees the publication of a paper on optimising the technology for producing plastic bonded sand blocks, for use e.g. as paving slabs, from the low value LDPE film plastic, which is a major problem even in the least-developed countries. Our team at Imperial College London was led by Professor Chris Cheeseman, with the laboratory research carried out by Alexander Kumi-Larbi Jnr and Danladi Yunana. The technology was developed by another co-authors, Pierre Kamsouloum, a self-taught entrepreneur from the Cameroun.
31 August, 2018 | Conference, Waste Management
CIWM President, and Chair of CIWM’s Hazardous Waste Special Interest Group (SIG), David C Wilson reflects in his August CIWM column on the challenges facing hazardous waste management in the UK and Ireland – past, present and future. His review with the SIG of current challenges suggests that not much has changed over the 44 years of his involvement with the hazardous waste sector. In particular, the UK continues to lack the ‘regulatory certainty’ which is necessary to secure the investment required in hazardous waste management infrastructure if such investment is left entirely to ‘the market’. And looking at the island of Ireland in particular, the uncertainties around Brexit do not help.