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Rapid economic growth and urbanization in India have increased demand for municipal services. In response, privatization has emerged as a policy solution to a growing deficit in urban infrastructure and service provision. But, privatization assumes prior state ownership of those services. Certain waste management services, specifically doorstep waste collection, have never been truly public in the sense that private informal actors have historically provided them. The purpose of this paper is to examine the tensions and contradictions between two related policy imperatives – universal service provision and privatization – that appear to be guiding the municipalization of solid waste collection services in urban India.

Research for this paper relies on detailed analysis of key government documents (reports of various committees, regulations and laws) that have been important in defining municipal responsibilities for waste management in India from 1990 to 2016. In addition, where appropriate, research materials from the author’s doctoral dissertation fieldwork in Delhi from October 2012 to December 2013 have also been used.

An analysis of key policy documents revealed that the government’s efforts to document deficits in service provision ignored, and thus rendered invisible, the work of the informal sector. While a consensus on the need for universal waste collection service had emerged as early as the late 1990s, it was not until 2016 that municipal responsibility for service provision was codified into law. The rules issued in 2016 municipalized this responsibility while simultaneously opening up spaces for the inclusion of the informal sector in waste collection service provision.

This paper fills a gap in the existing literature on how policy interventions have brought the space of the doorstep into the ambit of the state such that it allows for the opening up of those spaces for the entry of private capital. Under the guise of universal service provision, the shift to municipalization and outsourcing to private corporations is not in fact privatization – service provision is already private – but involves the dispossession of informal workers and the transfer of their resource to the formal, corporate sector.

In less than a decade to sustainable development goals (SDGs) there is a threat of household waste emanating from sub-urban sprawl especially in developing countries. Private approaches with government-enabling environments have been proved a successful platform for urban services such as housing provision and telecommunication in developing cities. Still private solid waste management (PSWM) seems different in Nigeria. Therefore, this paper aims to investigate the possible perceived hindrances facing PSWM organisations and proffer feasible policies to enhance sustainable clean and healthy cities.

Seven communities within Benin City sub-urban environs were adopted as the study area to accomplish the research’s objectives via a phenomenology type of qualitative research design. The study analysed the collated data from the knowledgeable participants via a thematic approach.

Lax legislative, absence of institutional framework, inadequate economic motivation, inadequate technical operations, among others, emerged as the encumbrances faced by PSWM firms. Wastes dumped along unethical locations such as streets, roads, uncompleted buildings, culverts and drainage channels, and undeveloped plots emerged as the encumbrance outcomes. Findings show that proffering feasible policy solutions to tackle identified hindrances can promote the achievement of SDGs across semi-urban locations in Nigeria.

This research is restricted to urban household waste management by PSWM within Nigeria. Also, the study identified the challenges and proffer policy solutions to enhance improved clean environment within the sub-urban and urban cities.

As part of this study’s implications, results from this research intend to guide government policymakers and PSWM firms to encourage collaboration in designing appropriate strategic and educational programmes for the householders (customers) in sub-cities. It will be achieved via feasible policies that are tailored towards achieving sustainable health and environment-friendly sub-urban locations.

This paper intends to enhance proper PSWM and create sustainable cities via collaboration. Also, the paper engaged key stakeholders via a qualitative research design to proffer possible solutions to the menace of sub-urban and urban household waste management.

In less than a decade to Sustainable Development Goals, the urban solid waste (USW) emanating from households, especially in developing countries, calls for concern. Several policies have been suggested and some implemented, but the challenges facing USW management remain, especially in developing nations. Past studies demonstrated that the fourth industrial revolution (4IR) technologies can be used to improve urban public services. The role of 4IR in mitigating the challenges of USW is yet to receive in-depth research in Nigeria. Thus, the study investigated 4IR role regarding mitigating the challenges facing USW.

Seven cities across Nigeria, including the Federal Capital Territory, were used as the study area to achieve the research objectives via a qualitative research design. Thirty-two semi-structured interviews were conducted from selected regulators, households, legislators, ICT experts, NGOs and waste managers. A thematic approach was adopted to analyse the collated data.

Findings group the USW challenges into five categories. The 4IR technologies can be used to manage USW; thus, they create an opportunity to integrate and promote sustainable clean cities.

This study is confined to the 4IR role concerning mitigating the encumbrances facing USW in Nigeria and proffered feasible policies to enhance a sustainable healthy environment.

Proffered policy solutions will stir policymakers and construction practitioners to think outside the box and offer and better understand how 4IR technologies can be utilised to mitigate those challenges. The outcome will create sustainable clean cities as part of the implication contribution to the body of knowledge.

Evidence from the reviewed literature shows a paucity of literature focussed on 4IR roles in mitigating the encumbrances facing USW in Nigeria. Therefore, this study contributes to the existing research work on 4IR concerning its role in enhancing USW in Nigeria and, by extension, to other developing countries.

This is a case study about the green agenda of Urban Hijau, a social enterprise which promotes urban farming as a way to a foster sustainability. It narrates how it started and progressed through the introduction of various sustainable farming systems. The landscape of farming with its opportunities and challenges such as embracing permaculture as a farming philosophy, and food security are presented. The case ends with questions which Urban Hijau has to address in order to sustain its social enterprise. Can a small urban farm contribute significantly to the food industry? If so, how? Is Urban Hijau on the right track?

The purpose of this paper is to provide insights into the role and practices of informal waste pickers and the implications for waste management policy in urban contexts of the Global South.

Qualitative case studies were used, including interviews, observations and document analyses. The authors compared informal waste management in two cities of the Global South: Accra (Ghana) and Porto Alegre (Brazil).

The analysis points out that informal waste pickers play a crucial role in the implementation of waste policies in both cities, despite differing economic, social and institutional contexts. The study of the waste management system also points to multiple connections between informal and formal parts of the economy. Although the informal waste pickers are integral to the waste management systems, their economically disadvantaged position excludes them from the formal labour market. Faced with these challenges, they develop creative solutions to guarantee their livelihood and gain more effective collective voice.

The comparison of two case studies, conducted about the same social phenomenon in two different economic, institutional and social contexts, has limited generalisability but is theoretically and practically important.

The findings are relevant to policy-makers who deal with urban waste management and for organisations who develop support actions for informal workers.

The authors draw on a comparison of qualitative case studies to explore the multidimensionality of the waste picker’s phenomenon. This paper sparks discussion among scholars and experts who study the informal economy from different perspectives, in this case bridging insights from sociology and victimology.

The purpose of this paper is to examine empirical studies on public-private partnerships (PPPs) and solid waste management (SWM) in Ghana and India to synthesize the “crucial lessons” for urban managers and policy makers in developing countries.

A systematic review of empirical studies was carried out, the search process comprised four categories of keywords combined differently across three main search engines in order to obtain a pool of more relevant literature on the study. Sorting for relevance was done at various levels; retrospective content analysis of relevant empirical studies on PPP and SWM in Ghana and India was subsequently carried out to draw lessons and policy suggestions.

PPPs have mainly been impressive in coverage of waste collection in the Ghanaian context, whilst in India, emphasis has been on injection of technology and effectiveness into SWM. It is also observed that in both cases the PPP processes have lacked adequate openness, transparency and sufficient stakeholder engagement. In the Ghana cases, mostly, urban authorities hardly pay attention to details in the partnership deed and also ignore monitoring of private partners. Poorly performed PPPs do occur when one of the partners relent on his role which could have a cascading effect on other actors.

Whilst PPP is a strong candidate to address the SWM challenges of urban centers in developing countries, this does not necessarily come about by joining the bandwagon. Merely entering into a partnership deed with private waste management companies without paying due attention to details of the contract will usher urban managers into a state of schizophrenia. The paper presents five key lessons to inform policy and practice.

The paper draws lessons from multiple cases of PPPs in Ghana and India by synchronizing lessons adaptable to city authorities and policy makers in developing countries.

Waste production and related environmental problems have caused urban services management many problems in collecting, transporting and disposal of waste. The purpose of this study is to design a new model for municipal waste collection vehicle routing problems with time windows and energy generating from waste. To this purpose, a bi-objective model is presented with the objectives of increasing the income of waste recycles and energy generation from waste and reducing emissions from environmental pollutants.

A bi-objective model is presented with the objectives of increasing income of recycles trade and energy generation and reducing emissions from environmental pollutants. Concerning the complexity of the model and its inability to solve large-scale problems, non-dominated sorting genetic algorithms and multi-objective particle swarm optimization algorithms are applied.

In this research, an integrated approach to urban waste collection modeling that coordinates the various activities of waste management in the city of Kermanshah and energy generation from waste are provided. Besides, this study calculates the criteria that show the environmental effects of municipal waste. The proposed model helps to collect municipal wastes in the shortest possible time in addition to reducing the total cost, revenues from the sale of recycled materials and energy production.

The proposed model boosts the current understanding of the waste management and energy generation of waste. The paper adds additional value by unveiling some key future research directions. This guidance may demonstrate possible existing and unexplored gaps so that researchers can direct future research to develop new processes.

Urban population growth has increased pressure on natural resources, water in particular. It has resulted in serious water stresses, poor waste management and severe diffuse pollution. To achieve more favourable solutions, there is a need to look for technological alternatives based on the principles of closing cycles. Incorporation of the agricultural system to the sanitary system with nutrient recycling is one of the major ways of closing the loops in urban and peri‐urban areas. However, various partnerships with all actors of the civil society should be established. Development and implementation of successful reuse operations require more research work to define urban models in which material cycles are closed at affordable economic costs. This paper aims at discussing alternative water management approaches to ensure environmentally sound urban and peri‐urban water‐related relationships.

The global economy is facing a steep challenge from volatility, risk and uncertainty associated with climate change, pandemics, regional conflicts and trade wars which are unprecedented and overlapping. These crises are leading to macro- and microeconomic imbalances. The immediate effects like rising inflation, shortage of energy and fertiliser, food insecurity, loss of jobs and poverty are looming large, leading to existential threat. It is evident that decades of progress are at risk and pursuing sustainable development goals (SDGs) requires dedicated and customised efforts by the governments and other relevant actors, especially in the low- and middle-income countries (LMICS). The concept of circular economy is considered to bring a paradigm shift by reducing the dependence on natural resource extraction and decoupling economic growth from use of natural resources. Bioeconomy is another emerging field which deals with the use of renewable biological resources such as biomass to produce renewable biofuels, bioproducts, and biopower for economic, environmental and social benefits. Circular bioeconomy (CBE) lies at the intersection and is defined as the production of recoverable biological (waste) resources and the conversion of these resources into high-value-added products, such as food, feed, bio-based products and bioenergy. It has been estimated that the economic opportunity for the sector to complement or even substitute conventional ones is estimated to be USD 7.7 trillion by 2030 for food and feed waste products, and energy. CBE is perceived as a pathway for development and has the potential to target different SDGs directly like 6, 7 and 12 and SDGs 2, 3, 11, 12, 13 and 15 indirectly. This study explores the linkages of CBE with the SDG goals and provides recommendations to stimulate the sector.