Agriculture
September 23, 2023
Dispensers for Safe Water
Read SolutionImplemented by
Innovations for Poverty Action
Product Description
The Safe Water Book, a product by Folia Water is both a water filter and an instruction manual for how and why to clean drinking water. This product was discontinued in 2016 and has been replaced by Folia Filters, which use the same filtration technology but are redesigned into a cone-shape based on user feedback.
Target SDGs
SDG 6: Clean Water and Sanitation
Target Users (Target Impact Group)
Household
Distributors / Implementing Organizations
This product was discontinued as of July 2016.
Regions
Worldwide
Manufacturing/Building Method
Absorbent blotting papers are made from bleached softwood kraft pulp manufactured by FPInnovations and are embedded with silver nanoparticles. Water is treated during filtration through the papers.
Intellectural Property Type
Patent
User Provision Model
This product was discontinued in July 2016.
Target use case
Individual
Manufacturer-specified flow rate (L/hr)
Unknown
Bacteria reduction
2 log
Type of membrane filtration
Microfiltration:Â Absorbent blotting papers made from bleached softwood kraft pulp
Virus reduction
Unknown
Protozoa reduction
Unknown
Heavy metals and/or arsenic reduction
Unknown
Maximum recommended influent turbidity level (NTU)
Unknown
Effluent turbidity levels (NTU)
Unknown
Material of construction
bleached softwood kraft pulp embedded with silver nanoparticles
Safe water storage capacity (L)
None
Manufacturer-specified lifetime volume (L)
100 L of water per page
Design Specifications
The pages of the book consist of bleached softwood kraft pulp that are embedded with silver nanoparticles.
Product Schematics
Technical Support
Provided by manufacturer or distributor
Replacement Components
None
Lifecycle
Each page can treat 100 liters of water and each book can last for up to 4 years.
Manufacturer Specified Performance Parameters
Filter papers remove bacteria from water.
Vetted Performance Status
Between 4.8 and 5.1 log reduction of total coliform concentration in water filtered through the paper. Academic research by the University of Virginia and McGill University.
Safety
Unknown
Complementary Technical Systems
Safe storage container to protect treated water from recontamination.
Academic Research and References
Theresa A Dankovich, Jonathan S Levine et al. Inactivation of bacteria from contaminated streams in Limpopo, South Africa by silver or copper nanoparticle paper filters; Environment Science: Water Research and Technology, 2016.
Theresa A Dankovich, Derek G. Gray, Bactericidal Paper Impregnated with Silver Nanoparticles for Point-of-Use Water Treatment, Environ. Sci. Technol. 45(5), 2011.
Compliance with regulations
Silver and/or copper elution is reported to be below USEPA secondary guideline values.
Evaluation methods
Field and laboratory evaluations
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