November 4, 2011 by Darren
Engineering, In Case You Missed It...
Like everything else he packed for his South Pacific jungle island adventure, David Hall needed his 2D CAD tool to be light and portable.
Hall is a civil engineer in the middle of a two-year assignment for Volunteer Services Abroad, a New Zealand economic development agency similar to the American Peace Corps. Along with his wife Rosie, he’s stationed in West New Britain, Papua New Guinea, an impoverished nation of 6 million where most of the population lives in remote rural areas without plumbing.
Coordinating with another volunteer service NGO called “Live and Learn,” Hall is helping local villagers:
- Install basic water supply systems to provide water in taps within the village and relieve the women and children of the daily chore of fetching water, often from miles away.
- Construct ventilated “longdrop” toilets as a sanitary alternative to the current practice of using the bush or beaches as bathrooms. The main component is a concrete slab with a hole in it (to squat over) and a ventilation pipe to minimize odors.
- Establish a hygiene education program to teach people the links between health and sanitation.
Because islanders cannot depend on a power supply for pumping, the water harvesting and filtration systems are based on gravity from either an elevated natural spring or a collection tank on a roof. Read More