Guidance on evidence-based practices for improved sanitation, water security and ecological health, with a focus on nature-based solutions
There are 2.4 billion people living without sanitation properly separating them from their biological waste. For another 2.1 billion, wastewater drains directly into surface waters. Despite improvements over past decades, unsafe management of fecal waste and wastewater still presents a major risk to public health and the environment.
There are various natural solutions which can be part of wastewater treatment systems, supporting the removal of wastewater contaminants such as bacteria, heavy metals and high levels of nutrients. These include: constructed and natural wetlands, wastewater treatment ponds and soil infiltration systems, and green roofs and vertical gardens.
However, it is often difficult for wastewater utility managers to know whether to incorporate natural infrastructure into their planning, how best to find a suitable mix of grey and green infrastructure, and how to choose among the menu of possible types of green infrastructure. Many professionals, technicians and regulators, are hesitant to implement nature-based solutions, because the mechanisms at play are not well understood and controlled.
This interdisciplinary Science for Nature and People Partnership (SNAPP) will develop guidance on nature-based sanitation solutions that can be implemented into wastewater treatment facilities in a way that benefits ecological and human health.
The working group will be guided by the BRIDGE Collaborative principles as an approach to enable more effective cross sector collaboration, with the ambition to inspire wastewater utilities and regulatory authorities to incorporate the guidance into their operation and planning.
Katharine Cross – International Water Association
Justin Abbott – Arup Group
Vicenç Acuña – Catalan Institute for Water Research (ICRA)
Natasa Atanasova – University of Ljubljana
Robert K Bastian – US Environmental Protection Agency (EPA)
Florent Chazarenc – Institut national de recherche en sciences et technologies pour l’environnement et l’agriculture (IRSTEA)
Rose Kaggwa – National Water and Sewerage Corporation, Uganda
Günter Langergraber – BOKU University
Fabio Masi – IRIDRA
Rob McDonald – The Nature Conservancy
Stefan Reuter – Bremen Overseas Research and Development Association (BORDA)
Kari Vigerstol – The Nature Conservancy
Stephanie Wear – The Nature Conservancy
Josh Goldstein – Bridge Collaborative, The Nature Conservancy
A TNC led study examining the state of water in 2,000 watersheds in 534 cities around the world. It provides information on natural solutions that can be integrated alongside traditional infrastructure to improve the quality of water that reaches cities
It explores the co-benefits of source water protection, including climate change mitigation and adaptation, human health and well-being and biodiversity across 4,000 cities
It provides a dataset of among the most important constructed wetland treatment plants realised worldwide
The dataset contains more than 900 constructed wetland treatment plants, collecting meta-data such as location, flow path, wastewater type, as well as technical information such as person equivalent and wastewater flow treated, and surface area
Information on access to sanitation, drinking water and hygiene in each country at national, urban and rural levels
A new Science & Technical report for practitioners, summarising practical experiences on treatment wetlands (forthcoming)
A resource online service that provides information regarding constructed wetlands in the UK
It provides a dataset of wetlands worldwide that have been designated as internationally relevant
Dataset of wetlands in the tropics and sub-tropics, including information about wetlands for water supply and other types.