Introduction A well‑designed biochar filter aims to support biofilm growth, not fight it. Biofilms are the biological engine of filtration: they convert nutrients, degrade organics and stabilise contaminants inside the biochar matrix. But like all biological systems, they eventually reach a point where hydraulic flow slows and the filter becomes partially or fully clogged. This…
Are biochar and charcoal the same thing? Can they be used interchangeably? The short answer It depends! A good shorthand: look for and buy ‘certified biochar’ – that way you know it is made sustainably and meets the chemical purity as stated. Why does “it depend” Although the words are often used interchangeably, charcoal and…
👉 Quick answer Biochar is a carbon‑rich material made by heating plant or organic biomass in low oxygen. It’s long‑lasting, climate‑positive, and used in many industries. But biochar is not one product — different feedstocks and production methods create very different materials. Biochar can be used in soil, construction, filtration, plastics/composites, and carbon‑removal markets. Its…
In 2015, we ran a simple experiment that unexpectedly kick-started our interest in using biochar as a water-filtration medium. At the time, we were asking a basic question: could wood-based biochar rival or even replace activated carbon in aquariums? Using 500 ml plastic bottles as mini test columns, we filled each with a known weight…