Environmental Agricultural Science
Maribel Zapater-Pereyra (1)*, Rosa María Miglio Toledo (2)
(1) Independent researcher, Gottfried-Keller-Str. 25 81245 Munich, Germany
(2) Profesora Principal, Facultad de Ingeniería Agrícola, Universidad Nacional Agraria la Molina, Lima, Peru
*firstname.lastname@example.org, Tel: +49 157522 00432
Natural wastewater treatment technologies like constructed wetlands (CWs) are efficient approaches to increase the sanitation coverage around the globe. The goal 6 of the Sustainable Development Goals expects in 2030 to “achieve access to adequate and equitable sanitation and hygiene for all and end open defecation” and CWs are a simple low-cost technology accessible to everyone. This technology is not only able to treat wastewater to meet water reuse and disposal quality guidelines, but also to fit within the urban and rural environment since it provides green areas. The recent drastic increase in the world’s population has led to the main disadvantage of rapid urbanization and more dark-construction (concrete) in spaces that used to be natural open spaces. The only water resource that grows together with the population is wastewater. Therefore, treating this resource with a green technology, that increases the green areas in a city, and to reuse the water for the needs of the population is a valid initiative towards fulfilling the basic right of sanitation in urban but also rural areas, where the distance to the centralized treatment plant is always problematic .
This study summarizes the benefits of CWs to be implemented around the globe and will focus on: (i) types of CWs and efficiency, (ii) weather conditions to guarantee treatment success, (iii) green areas and CWs – Water Sensitive Urban Design Concept, (iv) the challenge to built CWs in megacities and (v) case-studies and possibilities to develop and spread them in Peru.
 Zapater-Pereyra M., “Design and development of two novel constructed wetlands: The Duplex-Constructed Wetland and the Constructed Wetroof”, Doctoral dissertation, CRC Press/Balkema. ISBN: 978-1-13-802930-9