What is Biochar

Biochar is a form of carbon-rich organic material produced by heating organic matter in a low-oxygen environment.

A variety of renewable sources, such as agricultural waste products, can be used to make biochar. The production process involves pyrolysis, a reaction that results in the breakdown of complex molecular chains and the formation of a stable product through intense heating without oxygen.

The stability of biochar allows it to persist in soil for hundreds of years, making it a valuable tool for improving soil health, crop yields, and mitigating climate change.

Biochar in agriculture

Biochar is applied to soil as a single amendment mix in agriculture.

Its unique physical and chemical properties enhance soil quality, increasing its water retention and nutrient retention, while balancing acidic soils with its high carbon content. This leads to improved crop productivity and the possibility of organic farming.

The greatest impact of biochar in agriculture has been seen in tropical crops, with a 25% average increase in production globally at a biochar application rate of 1.5 kg/m2 (Jeffery et al., 2017).

French Carbon offers farmers training and support in using biochar.

Biochar in water filtration

Biochar can be used in water filtration as a sorbent material to remove pollutants and contaminants such as heavy metals, pesticides, and pharmaceuticals.

Its porous structure, high surface area, and chemical stability make it an effective adsorbent for removing contaminants from water.

Biochar can also help to reduce the levels of harmful microorganisms, such as bacteria and viruses, in contaminated water sources.

The use of biochar in water filtration systems can provide a low-cost, sustainable solution for improving water quality in both developed and developing countries.