Why biochar replaces wood chip as a bulking agent at compost scale

Short answer

At compost scale, bulking agents are structural tools, not disposable inputs. Biochar can replace wood chip in this role while maintaining airflow and process control. This substitution improves both material performance and value capture.

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Where this sits within the wider BHC framework

This clarification supports production and stabilisation logic by explaining how compost system design can evolve without sacrificing operational performance.