In recent years there has been a growing body of knowledge exploring the benefits of using sanitation-derived nutrients. Such studies aim to uncover strategies that facilitate nutrient recovery from urine and faecal sludge for agricultural use. This paper presents the findings of a study which assessed the willingness to handle and use urine in agriculture among people living in rural areas of eThekwini Municipality, South Africa. Results show that less than 5% of participants are using urine as a fertiliser. This could be attributed to limited awareness of the value of urine in agriculture since only 9.7% are aware that urine contains essential nutrients that can support plant growth. Furthermore, health concerns, smell and the opinions of others are identified as barriers to the handling of urine. The study therefore recommends that participatory field trials and promotional activities are conducted to improve users’ awareness and acceptance. The outcome of this research is of importance to help inform low- and middle-income countries’ governments as they address urban and environmental challenges such as access to adequate sanitation, poverty and food security.

Sustainable smallholder farming is contingent on fertilizer access. Soils across Africa are typically nutrient deficient, a condition exacerbated by long-term nutrient mining. Nitrified urine fertilizer is a nutrient-rich and hygienically safe solution derived from human urine. It has the potential to provide a sustainable source of soil nutrients to low and middle-income countries struggling with food insecurity challenges. This study presents findings of a survey that assessed public acceptance within Msunduzi, Kwazulu-Natal, South Africa towards the use of nitrified urine fertilizer. Results indicate that in general attitudes were much more positive towards the use of nitrified urine fertilizer than raw urine as a soil amendment. Residents living within rural zones of the municipality (78.5%), as opposed to urban (65.7%) and peri-urban (65.2%), and younger individuals within the sampled population were found to be the most receptive to the use of nitrified urine fertilizer. Our findings also underscore the complex set of factors that shape attitudes towards a topic such as the use of human waste as a fertilizer, which are crucial in shaping the legitimacy of an emerging technology such as urine nitrification.

The twin challenges of lack of access to improved sanitation and food insecurity remain critical, particularly in the global south. With cognizance of the nutrient potential of human excreta, there has been increasing interest in linking sanitation innovations with agriculture by using nutrients recovered from human excreta for crop production, thus, closing the nutrient loop. While studies and field trials have explored and validated the technical feasibility of reusing nutrients recovered from human excreta in agriculture, there is still limited knowledge of its social acceptability. This study examined whether indigenous knowledge can be leveraged to increase the acceptability of human-excreta-derived plant nutrient sources such as treated effluent in agriculture. A qualitative research design comprising seven focus group interviews (five in rural areas and two in peri-urban areas) was conducted in KwaZulu Natal, South Africa. Findings from the focus groups reveal a willingness to grow and consume food using treated effluent. Additionally, participants made references to indigenous practices that encourage recycling and reuse of human excreta. Given the potential to simultaneously address issues of food insecurity and sanitation that characterize many peri-urban and rural areas in South Africa, we recommend further studies in this area.

The recent experiences and impact of the COVID-19 pandemic provide a valuable lens for understanding the vulnerabilities of informal settlements and how they are positioned to respond to other large-scale hazards. This article explores the body of knowledge on the pandemic in the context of informal settlements, guided by the scoping review strategy. Our findings reveal that COVID-19 has impacted informal settlements in several ways, including increasing loss of income, food insecurity, increased gender inequality, gender-based violence and forced evictions. While there have been numerous responses to the crisis, several pre-existing factors in informal settlements impeded their implementation. We note that lessons from the pandemic provide an important opportunity to address pre-existing vulnerabilities in informal settlements to make them more resilient to both health and environmental shocks.

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