SolarPure UF

Target SDGs

Market Suggested Retail Price

$15,200.00

Target Users (Target Impact Group)

Community, Small and Medium-sized Enterprises

Distributors / Implementing Organizations

Distributed by Healing Waters. Implemented in Uganda, Rwanda, and Kenya by Jibu. ^{Interview with representative}

Countries

Kenya, Rwanda, Uganda

Manufacturing/Building Method

Batch assembled, up to 12 week lead time for large orders. ^{Interview with representative}

Intellectural Property Type

Trade Secret

User Provision Model

Direct purchase from manufacturer or through a partner NGO called Jibu.

Distributions to Date Status

Healing Waters has implemented over 200 water projects around the world. This particular design is newer, with 52 units produced to date. Interview with representative

Design Specifications

The SolarPure UF uses a 5-step water treatment process which is low-waste, with typically >90% net water recovery. It includes:

• Pre-filtration: 105-micron stainless steel screen.
• Ultrafiltration: 0.02-micon pores for removal of bacteria, viruses, and other waterborne diseases.
• Activated Carbon: 24kg of coconut-shell carbon contains 28,000,000 m2 of surface area. Effective at reducing taste and odor issues.
• Polishing Filter: 0.35-micron cartridge filter.
• Chloramine (at 1.0 ppm) is injected into the final water as a preservative.

Dimensions: 102 cm x 74 cm x 153 cm

Weight: 240 kg

Power Supply: use any 2 of the following:

• City Power (90-240VAC, 50/60Hz)

• Generator (90-240VAC, 50/60Hz, 1000W)

• Solar Panels (48-300VDC) Recommendation: 500-1000W of panels

• Batteries (48V array) Recommendation: Four 12V 100AH batteries

If any power source is reliable and continuously available, an additional power supply may not be needed.

Water Supply

• Any fresh water supply (not salt water)

• Must be tested for chemical contamination

• Should be stored in a holding tank.

Materials Used

• Frame: Stainless steel

• Hardware: Stainless steel and galvanized steel

• Plumbing: Stainless steel, brass, and plastic

• Filter Housings: Plastic and Structural Poly Glass™

• Valves: Stainless steel with PTFE seats

• Pump internals: Stainless steel

Additional built-in functionality:

• Internal clean: sanitizing the filters and plumbing with panel-mounted ball valves (sanitizes with 200ppm chlorine, followed by a clean water flush)

• Backwash: cleaning the membrane by simply turning one panel-mounted ball valve (the backwash is designed to be at a higher pressure than forward flow)

• Bottle-wash: sanitizing the inside of bottles with panel-mounted ball valves (sanitizes with 200ppm chlorine, followed by clean water rinse).

• Diagnostics: Simple diagnostics of clogged filters with 5 panel-mounted pressure gauges

Technical Support

The Healing Waters Engineering team provides support. ^{Interview with representative}

Replacement Components

Inventory of replacement components are stocked in several countries around the world and growing. ^{Interview with representative}

Lifecycle

The manufacturers offer a 1 year warrenty. Typical life cycle of 10-20 years, but could be much longer with proper maintenance. Equipment frame and most plumbing/valves are stainless steel. Regarding disposal, filtration media is non-hazardous, stainless steel is a recyclable commodity, and electronic components should be properly recycled. ^{Interview with representative}

Manufacturer Specified Performance Parameters

Provides ultrafiltration with removal of bacteria, viruses, and other waterborne diseases. The SolarPure UF can reach a production rate of up to 30 liters per minute at 400 W, and can filter water with as little as 50 W. All built-in functionality is fully functional at 200 W. ^{Interview with representative}

Vetted Performance Status

During design phase, 3rd-party performance testing performed by Dr. Nathan Hancock, Colorado School of Mines. ^{Interview with representative}

Safety

The filtration media is non-hazardous.^{Interview with representative}

Complementary Technical Systems

For surface water, sand pre-filtration is recommended. ^{Interview with representative}

Academic Research and References

Compliance with regulations

Most components are produced in ISO 9001 facilities. Ultrafiltration Membrane is produced in an ISO 9001 facility and is NSF 61 listed. ^{Interview with representative}

Evaluation methods

Field and laboratory performance testing.

Other Information

None.