ACI Household Filter
Aqua Clara International (ACI)
The ACI Household Filter is a hollow-fiber membrane tabletop filter that can include one or two buckets for safe water storage and is suitable for turbid waters.
The ACI Household Filter is a tabletop filter manufactured by the US‐based organization Aqua Clara International (www.aquaclara.org). It comes with two 0.1‐micron hollow fiber membrane elements in a single PVC housing, a tap, necessary installation hardware, a 75‐micron pre‐filter screen, and a backwashing syringe. The buckets must be procured separately and can be configured with one or two 20L buckets for safe water storage.
Filters have been distributed in Belize, Cameroon, Costa Rica, Dominican Republic, Haiti, Honduras, Kenya, Mexico, Mozambique, Nepal, Nicaragua, Peru, Rwanda, Tanzania, Uganda, Vietnam, and Zambia.
The $40 filters are distributed by partner organizations who provide filters by donation or locally established micro-enterprises.
Membrane filters for household use, such as these options from the Engineering For Change Solutions Library membrane filter category.
Goal 6: Clean water and sanitation
Individuals and households in developing countries where water turbidity is too high for a ceramic water filter, such as surface water.
Filters units are assembled in country. Locally available components include, 1/4 inch PVC housing; 1, 3/4 inch tap with rubber seal; 1, 75 micron pre filter screen; 1. 5 gallon bucket or larger; 1, large back-flushing syringe. Imported components include: 2, 0.1 micron hollow membrane units. To assemble, install the filter unit on the side of the bucket near the bottom in line with the tap in a one bucket configuration, or with the filter installed in the upper bucket over the hole to the bottom bucket with the tap in the bottom bucket.
Users can obtain the filters from local partner organizations. ACI requires that interested parties participate in a training program to ensure proper construction, use and monitoring of the units built in the field. Their approach centers on training and supporting individuals and/or organizations to establish and manage micro-enterprises based around purifier construction, sales and service with a focus on sustainability.
More than 10,000 distributions correspondence with manufacturer.
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 filter is comprised of one or two 20 L buckets, a pre-filter screen, and two hollow-fiber membrane units. The pre-filter has a 50-75 micron screen and the membrane filters have a pore size of 0.2 microns.
ACI provides technical support to implementing organizations.
Filter housing replacement components available on local market.
Manufacturer claims filters can treat more than 300 liters of water a day and last for 10 years if properly maintained.
Manufacturer claims filters are capable of 6 log bacteria removal.
No known safety risks.
Safe water storage container for treated water for a one-bucket configuration.
Approved by the Kenya Bureau of standards
In the HIF Emergency Household Water Filter Challenge, filters were tested for ease-of-use, effectiveness, lifespan, robustness, and affordability and evaluated in a matrix for different disaster scenarios. There is also a logistics case study from CAWST for product acceptance which used interviewing and focus groups to test implementation and financing strategies.
Aqua Clara International works with a number of technologies for household, facility and industrial water treatment.
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