UZ-XL Large Capacity Water Filter
The UZ-XL Large Capacity Filter is a hollow fiber membrane filtration unit manufactured in the USA, designed to service schools, clinics, and orphanages.
The UZ-XL Large Capacity Water Filter is designed and manufactured by Uzima to meet larger water demands like that of clinics, schools, and orphanages. The product uses hollow fiber membrane technology, with the backflushing process occurring in-line. The filter contains bundles of hollow fibers designed to allow only water molecules to pass through the filter, filtering out anything larger than 0.1 microns (bacteria, cysts, protozoa).
The product has been implemented in Kenya, Nigeria, and Honduras.
The target region for this technology is Africa, with implementations in Kenya and Nigeria. The product has also been implemented in Honduras.
Uzima Clean Water Mission is an organization that coordinates the purchase of products for communities by NGOs. In Kenya, this product has been implemented by NGOs such as e3kids, Just One Africa, and Pregis. In Nigeria, IPG is a key distributor of the product. The product has also been implemented by HOI in Honduras.
Goal 6: Clean water and sanitation
Target users include schools, clinics, and orphanages. Target buyers are humanitarian organizations.
The product is largely marketed for purchase and distribution by humanitarian organizations. Alternatively, users can obtain the product directly from Uzima.
The exact number is unknown. However, it is estimated that over 6,000 products have been implemented as of 2017 through distributor Just One Africa.
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 filtration system consists of a primary and secondary filter, with the backflushing process occurring in-line. Each filter contains bundles of hollow fibers designed to allow only water molecules to pass through the filter, filtering out anything larger than 0.1 microns (bacteria, cysts, protozoa). Valves located on the water input and water output assembly parts allow for control of water flow and operating mode. In standard operating mode, all valves are orientated horizontally. Water flows from the water input tubing, through the primary filter, and exits the system purified by the water output tubing.
The product requires regular cleaning to ensure proper operation. The manufacturer provides detailed documentation for product operating modes: standard, backflush, and cleaning configurations.
Rubber tubing is listed as a replacement component.
The filter has an expected lifespan of 10 years.
The product is designed to treat water to the safety standards of WHO.
Performance in the field by independent research has found 6 log (coliform) reduction through the use of the UZ-XL filter.
Regular cleaning of the system is required to ensure that water is safe to consume.
Safe water storage systems.
Fagerli, G., et al., 2018, Evaluation of use, acceptability, and effectiveness of household water filter systems in Honduras, 2016–2017. Journal of Water, Sanitation and Hygiene for Development, 35, pp. 20-44
World Health Organisation, 2019, Results of Round II of the WHO International Scheme to Evaluate Household Water Treatment Technologies. Licence: CC BY-NC-SA 3.0 IGO.
US Environmental Protection Agency (EPA) goals for microbiological reduction were used to assess the UZ-1 filter, by BCA Laboratories. The study found that the filters were able to reduce bacteria levels by log 6 (coliform).
Compliance with WHO performance metrics for the reduction of bacteria and protozoa.
Effective removal of coliforms, in compliance with WHO safe water drinking guidelines, is cited as an evaluation criterion by the manufacturers.
Uzima has a number of products for personal and household use, available via their website.
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