Abstract

GIESBRECHT, Karl; MENDEZ, Fulgencio  and  VALDEZ, Nolberto. Nature-based safe water treatment in Chaco, Paraguay. Year 2023. Poblac.Desarro. [online]. 2024, vol.30, n.58, pp.24-36. ISSN 2076-054X.  https://doi.org/10.18004/pdfce/2076-054x/2024.030.58.024.

This article presents the issue of water access in the context of the Paraguayan Chaco and the alternative that the Non-Governmental Organization (NGO), Pro Comunidades Indígenas (PCI), along with indigenous and peasant communities in the area, has been experimenting with to address the problem; from water access to the challenge of its treatment and purification for human consumption. The methodological approach of this research is qualitative, employing participant observation and semi-structured interviews with technicians, coordinators of the implementing institution of the nature-based safe water system, and community leaders. Additionally, bibliographic consultations and review of PCI institutional documents were conducted to obtain secondary data. The results of this study provide a description of PCI's experiences and lessons learned about a nature-based safe water treatment system, which utilizes biofilters such as stone, gravel, sand, and charcoal. This article covers the trials for the construction of the sys- tem, explains its operation, and discusses its implementation in communities. The nature-based safe water system proves effective for small populations and provides a solution to a long-standing problem in the Chaco territory. Its construction is easy, short-term, and much less costly than conventional water treatment systems. Additionally, the joint construction of the system with the residents, technical training in its operation and maintenance, greatly contributes to its sustainability. This article contributes to the identification, application, and study of suitable water systems for areas with difficult access to this vital liquid, such as the Paraguayan Chaco. Furthermore, it is an innovative and eco-friendly system, meaning it is environmentally friendly.

Keywords : Paraguayan Chaco; water access; water treatment; biofilters; sustainability.

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