Please enable JavaScript.
Coggle requires JavaScript to display documents.
LANDFILL DESIGN - Coggle Diagram
LANDFILL DESIGN
Landfill operation
Stability analysis
waste placement technique
monitoring settlement program
operating facility
Gas management and monitoring
Surface water and drainage;
Leachate management and groundwater control;
Environment concerns
Activities in Landfill
Biological decompostion
Chemical oxidation
Gas escape
Liquid movement
Unevent settlement
Dissolved material movement by concentration gradient
Dissolution of organic and inorganic material
Leachate Management
Landfill leachate
liquid that has percolated through waste and has extracted dissolved material from it
biochemical and physical breakdown of wastes
liquid produced from the decomposition of the waste
LEachate formation
leachate production
Source of leachate in landfill
Surface drainage
ground water
Rainfall
Underground spring
Leachate collection
Ground Water
Compacted Clay
Geomembrane
Drainage Layer
Protection Layer
Management
Recycling
Treatment
Evaporation
Recycling
Re-circulate in landfill
High rate of gas production
high TDS,BOD and heavy metal
Reduce volume of liquid
Pro
landfill stabilization
Reduce volume
Cons
Increase groundwater pollution
Increase toxicity
Covering Operation
Type of covering
Final operation
Intermediate Operation
Daily operation
help to protect environment
Begin after or co-current ly with tipping
Final covering plan
Provide permenant isolation
integrate site with environment
long term future compatible
easy management
barrier to water migration
Leachate Treatment
Option
Aerated Lagoon
Light penetrates to bottom
Active algal photosynthesis
Wetland System
wetland plant
Enogh ground for construction
Evaporation
Used the energy from combustion
Contaminants concentrated in small volume
Reed Bed
filled with gravel, sand or soil
planted with macrophytes i.e. reeds
Advantage
Prevents public disturbances
low cost
New habitat for wildlife
Potential for fertilizer production
On-site
Minimize the contaminants
Removal of 90% COD