Clean Water For Crops: As Simple as Sand and Seeds (UC Davis)


Slow-sand filtration (SSF) is a tertiary treatment process that has been widely used for drinking water treatment. This technology has yet to be applied to wastewater treatment on a large scale. Pathogen reduction can be further enhanced by the addition of seeds from Moringa oleifera (a typical tree in Guatemala), which have proteins with antimicrobial properties. This project proposes to construct and operate a pilot-scale slow seed-sand filtration system at UC Davis to assess the feasibility of this technology, then to build a pilot-scale system in Sololá, Guatemala in order to adjust the system to local conditions. If successful, the pilot project will serve to encourage the community to build a full-scale treatment system.

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Blum Center for Developing Economies
The University of California, Berkeley
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Host and Fellow Responsibilities

Host Organizations

  • Identify staff supervisor to manage I&E Climate Action Fellow
  • Submit fellowship description and tasks
  • Engage in the matching process
  • Mentor and advise students
  • Communicate with Berkeley program director and give feedback on the program.

Berkeley Program Director​

  • Communicate with host organizations, students, and other university departments to ensure smooth program operations

Student Fellows

  • Complete application and cohort activities
  • Communicate with staff and host organizations
  • Successfully complete assignments from host organization during summer practicum
  • Summarize and report summer experience activities post-fellowship