Modern landfills provide environmental containment and control for municipal solid waste. A wide variety of skills is necessary when developing and operating these landfills if the objectives are to be achieved. Qi Solutions has an extensive record in design management for landfill development and provides expertise in the following, either in isolation or as a part of a single complex project:
LANDFILL GAS
Planning
• phasing capital works with operations
• waste stability
• effects of comingling of sludges
Formation
• soil and rock slope stability
• reclamation seawalls and revetments
• reclamation over soft marine deposits
• temporary surface water systems
Groundwater
• catchment hydrology assessments
• catchment regime hydrogeology
• near surface, vadose zone hydrology
• rock fissure hydrogeology
• groundwater control
• collection systems
Liner systems
• geosynthetic liners systems
• steep wall liner systems
• conventional liners
• liner leakage estimation
• QA/QC procedures
Leachate
• generation assessments
• collection systems
• leachate storage and management
• leachate extraction wells and pumping
• leachate discharge pumping stations and rising mains
Landfill gas
• collection networks
• gas management compounds
Infrastructure
• reception areas
• haul roads
• embankments
Restoration
• capping systems arrangements
• infiltration and runoff assessments
• infiltration measurement and analysis
• subsurface drainage
• stability of closure capping systems
• surface water drainage systems
• flexible access and maintenance roads
• leachate extraction and collection