Can biomass char remove toxic synthetic chemicals from drinking water?

Here's a campaign worthy of support. Josh Kearns has a long history of good work in Thailand. This is a very well presented pitch...
https://experiment.com/projects/can-biomass-char-remove-toxic-synthetic-chemicals-from-drinking-water

"Toxic synthetic chemicals such as pesticides and pharmaceutical residues are a major threat to drinking water safety worldwide. Low-cost, environmentally sustainable and locally managed treatment technologies are needed to protect human health in impoverished, rural and remote communities. This research project demonstrates the potential of char made from surplus biomass (biochar) as an effective sorbent for chemical toxins."