M-Drop

Target SDGs

Market Suggested Retail Price

$20.00

Target Users (Target Impact Group)

Household

Distributors / Implementing Organizations

Non-governmental organizations, Universities, Faith-Based Organizations and Private Parties including Agua y Vida, Wine to Water, Ultimate Mission, & St Paul's Episcopal Church.

Manufacturing/Building Method

M-Drop tablets are manufactured from clay, sawdust, silver and/or copper nitrate, pressed into shape and fired to a ceramic state

Intellectural Property Type

Patent

User Provision Model

Users can obtain the product from organizations, agencies and private parties including Agua y Vida, Wine to Water, Ultimate Mission, St Paul's Episcopal Church.

Distributions to Date Status

Unknown

Design Specifications

M-Drop is a small tablet of porous clay embedded with silver. When placed in water silver ions are released gradually and disinfect waterborne pathogens. Silver concentration is below 0.01 mg/L and a 6 log in bacteria reduction and 1 log virus and protozoa reduction can be achieved after 10-24 hours, depending on how contaminated the water is. Additional specifications: Weight: 50 grams; Length: 9.0cm; Height: 1.7; cm; Width: 3.5 cm.

Product Schematics

Technical Support

The M-Drop is placed in the water storage container and left there for 6 months. The user should avoid moving the M-Drop from container to container as this will reduce its effectiveness. The M-Drop works best when left in a container for at least several days, preferably weeks and months. The water storage container can be cleaned as needed. The M-Drop should be handled as little as possible to prevent the oil on skin from clogging the pores but it can be cleaned by rubbing it between hands, or gently scrubbing it with a clean brush. The user must remember to replace the M-Drop after 6 months.

Replacement Components

A supply chain is needed to purchase additional or replacement MadiDrops locally.

Lifecycle

Approximately 6 months; To discard a M-Drop users need to simply throw them away into the trash, or break it into pieces and disperse them on the ground.

Manufacturer Specified Performance Parameters

Performance targets 6 log bacteria removal, 1 log virus and 1 log protozoa removal.

Vetted Performance Status

Porous Ceramic Tablet Embedded with Silver Nanopatches for Low-Cost Point-of-Use Water Purification, Performance and Acceptance of Novel Silver Impregnated Ceramic cubes for Drinking Water Treatment in Two Field sites: Limpopo Province, South Africa and Dodoma region, Tanzania

Safety

Manufacturer reports silver elution is below USEPA secondary guideline values of 0.1 mg/L.

Complementary Technical Systems

Can be used in conjunction with boiling or filtration technologies to prevent post-treatment contamination during storage.

Academic Research and References

Compliance with regulations

Depends on local market regulations. MadiDrop offers support to distributors and resellers to obtain local certification.

Evaluation methods

Field & Laboratory evaluations, see academic research.

Other Information

Video on M-Drop.