In composting, the contaminated material is mixed with organic bulking agents, such as manure, and formed into piles or windrows. An accelerated bioremediation effect then takes place. The bulking agents help increase soil porosity to facilitate airflow. The energy released during organic degradation results in temperature elevation of the pile. Water can be added periodically and the piles or windrows are mechanically mixed at regular (typically weekly) intervals.

Some soil types will not require a bulking agent, whereby only nutrients, moisture and oxygen concentrations need to be controlled.


This flowchart illustrates all possible stages of the remediation process and is fully interactive; click on each process box for a detailed description...