Técnicas de compostagem. Todos os processos envolvidos e situações a ter em conta.

1. Composting for Soil Remediation João Ricardo Sousa, UTAD

2. Overall Process Schematic Composting Rocks Excavated contaminated soil Rotary screen Amendment soil mix Treated soil to landfill Washed rocks to landfill Windrows Wash tank

3. Composting Amendment mix Windrows Screen Monitoring Rotavator

10. Types of Composting Systems Composting - Soil placed in closed reactor with mechanical mixing and forced aeration - Aeration by turning the pile manually or mechanically - Aeration by forced air injection Windrows Systems Static Mix Systems In-vessel System Open Systems Closed Systems

11. Windrows System Composting Pile Width = 3 to 4 m (10 to 12 ft) Pile Height = 1.2 to 1.5 m (4 to 5 ft) Overhead sprinkler system

12. Details of Windrow House Composting Overhead sprinkler system Aeration system Leachate collection system

13. Static Pile System Composting Pile height = 3 to 6 m (10 to 20 ft) Aeration system Leachate collection system