Grifaid Family Filter
A pump-incorporated filter to treat water for groups up to 59 people.
The Grifaid Family filter® is a household water filter that produces safe drinking water on demand at a rate of 90 liters per hour by fixing the device to a container with the untreated water and pumping (see user manual). It uses hollow fibres/ultra-filtration membranes to eliminate all biological pathogens from water sources such as shallow wells, rivers, ponds and lakes, down to 0.01 microns and is designed to last at least 5 years (see fact sheet). This product is designed and produced by Grifaid, a non-profit organization based in the United Kingdom in association with Aquabox, a Rotary organization involved in supplying emergency aid products.
Worldwide where people need safe water, from developing nations, to countries and regions that are suffering from the effects of war or natural disasters.
44 USD (£35) Converted on July 13, 2019. Interview with representative.
Goal 6: Clean water and sanitation
Target users include individuals and communities of humanitarian aid projects in developing countries and who need emergency relief, while the target customer buyers include humanitarian organizations and governmental institutions.
Grifaid family filters are mass produced by the UK-based non-profit organization Grifaid.
Just over 40,000 Grifaid Family filter® have been distributed Interview with representative, in more than 40 countries, including the DRC, Gambia, Ghana, The Philippines, Syria, Lebanon, OPT-Gaza, and Haiti.
Is this filter designed for individual, household, or community use?
Manufacturer-specified flow rate (L/hr)
Laboratory-evaluated log scale removal rate of bacteria
Does the system use microfiltration, ultrafiltration, nanofiltration, or reverse osmosis?
Laboratory-evaluated log scale removal rate of viruses
Laboratory-evaluated log scale removal rate of protozoa
Reduction levels of heavy metals and/or arsenic through this treatment system
Manufacturer-specified maximum level of inlet turbidity (NTU)
Range or value of outlet turbidity levels (NTU)
Description of materials of construction
Is there safe water storage integrated into this product?
What is the total number of liters that is recommended can be filtered?
The device consistis of a hand pump to bring water to the filter and a 120 micrometer mesh-prefilter to prevent large particles, that make a two-way cross-flow continually wash the membrane while pumping. It is based on a cross-flow ultra hollow fiber filtration membrane, with a pore size of 0.01 micrometers (MWCO 150kDa) and has a a built-in flushing system with backwash syringe. It has a dry weight of 1.2 Kg and dimensions are: 480 x 100 x 140mm.
If safety measures described in the user manual indicate that the filter might be faulty, users are instructed to contact their filter supplier.
Filter does not require spare parts by design, replacement cartridges, chemicals, electricity or third party maintenance.
Tests conducted by the school of Civil Engineering of New Castle University indicated a high removal efficiency of E. coli. Microbial Reduction Evaluation by the Department of Soil, Water and Environment of the University of Arizona determined a removal of MS-2 bacteriophage of 4.9-5.75 Log and of E. coli of >5.23 Log.
Potencial hazards include the consumption of unsafe water that can lead to gastrointestinal problems due to failure to follow use and maintenance instructions of the user manual.
A container or any type of vessel to collect the untreated water is required for the Grifaid Family Filter to be fixed on. Also a container to collect the filtered water.
Dao Trinh,Ngoc., 2018, Development of a Decentralized Drinking Water Treatment Plant Based on Membrane Technology for Rural Areas in Vietnam, Kassel University Press, pp. 46.
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