Agriculture

Methane Emissions

Class-Research-Fieldwork: 
150 Projects Tags: 
Status: 
Reviewed
In D-Lab: Discovery, a group of students explored the solution space to curve down the uncontrolled emissions of methane gas. The goal is to promote environmentally friendly solutions that minimize the greenhouse effect. On a molecule-for-molecule basis methane is about eighty times stronger greenhouse gas than carbon dioxide.
D-Lab

Treadle Pump Testing

Class-Research-Fieldwork: 
Status: 
Reviewed
Irrigation technologies remain out of reach for most subsistence farmers; hand irrigation is time consuming, wasteful or often impractical. Our team worked with rural farmers to build and test a low-cost treadle pump developed by International Development Enterprises (IDE) Ghana.
Gomboi and Dwere

Rocker Water Pump Testing

Class-Research-Fieldwork: 
Status: 
Reviewed
Irrigation technologies remain out of reach for most subsistence farmers and hand irrigation is time consuming, wasteful or often impractical. Our team worked with rural farmers to build and test a cement rocker water pump developed by the Full Belly Project.
Gomboi and Dwere

Straw Chopper

Class-Research-Fieldwork: 
150 Projects Tags: 
Status: 
Reviewed
The market for mushrooms in India is steadily growing. Mushrooms are grown in media made from rice straw, a common waste product for Assamese farmers. Students are designing an affordable device to chop the straw is easier to use than the existing machines.
Assam

Moringa Seed Sheller

Class-Research-Fieldwork: 
150 Projects Tags: 
Status: 
Reviewed
Moringa is an exceptionally nutritious plant grown in Asia, Africa, and Latin America. Oil can be extracted from moringa seeds and has a number of beneficial uses. The seeds come in a shell; removing the shell can give higher yield of oil using a simple press. Students are currently designing an inexpensive moringa shelling machine.
New Longoro

Rope Pump Demonstration

Class-Research-Fieldwork: 
Status: 
Reviewed
People in Gomboi and Dwere do not have a source of safe drinking water; they currently walk a quarter mile to a river that tests indicate is highly contaminated with bacteria. In working with the community to develop a plan to build and finance a well/pump installation, we demonstrated how rope pumps work using modified bicycle parts.
Gomboi and Dwere

Urine Separating Toilet Seat

Class-Research-Fieldwork: 
Status: 
Reviewed
Composting toilets are currently expensive, but offer a promising alternative to pit latrines and have several advantages, among them the separation of urine from feces minimizes smell and allows the two to be used separately for fertilizer. Students are designing a process for locally manufacturing a urine separating toilet seat in Ghana.
Kumasi

Low-Cost Groundnut Sheller

Class-Research-Fieldwork: 
Status: 
Reviewed
Groundnuts are a staple food, but shelling nuts by hand is both time consuming and tedious. While there are several low-cost machines that can speed this process up, these devices can require unavailable parts, expensive materials or a high skill level to make. This new design is fast, easy to assemble, and costs less than $7 USD.
New Longoro

Charcoal & Corn Shelling Demonstrations

Class-Research-Fieldwork: 
Status: 
Reviewed
The 2011 D-Lab Rwanda team worked with the Rwanda Village Concept Project (RVCP) to demonstrate how to make charcoal out of agricultural waste. The community also learned how to make corn shellers out of local materials to help remove kernels from the cob faster than what was being done by hand.
Butare

Rainwater Filtration and Irrigation

Class-Research-Fieldwork: 
Status: 
Reviewed
A team from D-Lab's class on disseminating water, sanitation and hygiene (WASH) innovations is designing a dry season rainwater filtration/irrigation system that will generate income and promote healthier lives for the residents of Tamaula, Mexico. The team plans to prototype the low-cost and easy to maintain filter over the summer.
Tamaula

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