nprglobalhealth:

Floating Toilets That Clean Themselves Grow On A Lake

Imagine you live on a floating lake house. Open air. Chirping crickets. Clear, starry nights. Everything seems great until you need to use the bathroom.

The natural instinct might be to make a deposit in the water. But that wouldn’t be safe. Microbes in your feces would contaminate the water and could cause outbreaks of deadly diseases, like cholera.

A group of engineers in Cambodia wants to solve that problem for the floating villages of Tonle Sap Lake, the largest freshwater lake in Southeast Asia. Over a million people live on or around it. Exposure to wastewater spawns diarrhea outbreaks each year. In Cambodia, diarrheal diseases cause 1 in 5 deaths of children under age 5.

To help clean the lake’s water, engineers at the company Wetlands Work! in Phnom Penh are developing plant-based purifiers, called Handy Pods. The pods are essentially little kayaks filled with plants. They float under the latrine of a river house and decontaminate the water that flows out.

Here’s how it works. When a person uses the latrine, the wastewater flows into an expandable bag, called a digester. A microbial soup of bacteria and fungi inside the digester breaks down the organic sludge into gases, such as carbon dioxide, ammonia and hydrogen.

Continue reading.

Photo: A pod to pick up your poo: The Handy Pod features floating hyacinth plants placed underneath a houseboat’s latrine. The blue tarp offers privacy. (Courtesy Taber Hand)

What an amazingly great system! I wonder if this + solar would be enough to get houseboats fully off the grid i.e. both electricity and otherwise?

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s