A Field Guide to Biochar Water Treatment

Updated solar biochar oven manual

emissions control and some troubleshooting tips

Sep 15 • 

JK

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4

July 2025

How to build a solar powered biochar oven

Here’s an open-access graphical manual that describes how to build a biochar oven that’s heated using direct DC electricity from solar panels.

Jul 7 • 

JK

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June 2025

Updates coming soon...

a preview of current field-based R&D and new service projects

Jun 12 • 

JK

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April 2025

Response to recent earthquake in SE Asia

Our collaborators' efforts in water and food security and disaster preparedness

Apr 3 • 

JK

5

February 2025

Can biochar remove [insert chemical of concern] from my water?

a new tool for estimating the potential of biochar water treatment

Feb 13 • 

JK

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January 2025

Solar powered biochar?!?!?!?

and other project updates

Jan 7 • 

JK

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Video resources

A selection of videos describing our approach to decentralized water treatment using biochar adsorbent

Jan 7 • 

JK

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Bibliography of peer-reviewed publications

For papers that are paywalled, please email to request a courtesy copy.

Jan 7 • 

JK

Graphical design manuals

Instructions for constructing 300 liter/day and 2,000 liter/day water treatment systems, and a drum oven for making biochar adsorbent, using inexpensive…

Jan 7 • 

JK

4

September 2024

Guardianes del Agua (Water Guardians)

a (pair of) fun and educational game(s) for children

Sep 5, 2024 • 

JK

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3

July 2024

Roughing filter + "Daylight Drive" water delivery system

a practical, low-cost, off-grid option for removing sediment and sending water where you need it

Jul 15, 2024 • 

JK

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April 2024

Anatomy of a decentralized water treatment system

removing arsenic, fluoride, organic chemical contaminants, and microbial pathogens

Apr 14, 2024 • 

JK

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