A Field Guide to Biochar Water Treatment

Field testing new methods and instruments

I feel like we have crammed six months’ worth of biochar water testing method development and instrument prototyping into the last six weeks.

Aug 18 • JK

4

1

July 2026

Unicorn molecules & DIY spectrometers, oh my!

publishing updates in the Open Access Materials section

Jul 27 • JK

4

DIY fluorescence and UV spectrometers

inexpensive open-access instruments for biochar & water quality testing

Jul 27 • JK

1

4

Discovering ideal surrogate adsorbate(s)

unicorn hunting for miracle molecules...

Jul 26 • JK

DIY spectrometers for biochar & water quality testing

and the hunt for the Unicorn Molecule...

Jul 22 • JK

10

2

1

March 2026

Puerto Rico is Superfun(d)!

abundant opportunities for off-grid resilience

Mar 14 • JK

14

3

February 2026

Two upcoming workshops

Feb 28 / Mar 1 in Puerto Rico, Mar 7/8 in NC

Feb 5 • JK

5

Purificadora San Elias

new groundwater treatment system in rural Mexico

Feb 1 • JK

11

1

January 2026

Solar Biochar Oven Version 2.0

New and Improved!

Jan 18 • JK

13

2

1

Project updates & workshops

solar biochar oven design improvements, Water Guardians game, upcoming workshops

Jan 9 • JK

6

September 2025

Updated solar biochar oven manual

emissions control and some troubleshooting tips

Sep 15, 2025 • JK

7

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, 2025 • JK

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9

4