- #1
EzaMoo
- 34
- 0
Homework Statement
Landfills*often*use*clay*soils*to*control*the*flow*of*fluids*in*and*out*of*the*landfill.*At*the*sides*and*bottom*of*the*land*fill,*compacted*clay*liners*are*used*to*contain*the*accumulating*fluid*within*the*landfill*(called*leachate).*At*the*top*of*the*landfill,*clay*cover*systems*keep*rain*water*from*infiltrating*into*the*landfill*and*creating*excess*leachate.*The*fluid*flow*through*these*liner*systems*can*generally*be*approximated*as*one‐dimensional*flow.*Leachate*collects*on*the*clay*liner*as*shown*in*Figure*5.*Below*the*clay*liner*is*a*gravel*layer*that*collects*the*leachate*so*it*can*be*pumped*out*and*treated.*There*is*a*second*clay*layer*below*the*gravel*layer*to*prevent*leachate*from*entering*the*groundwater*below.*For*the*conditions*shown*and*a*typical*effective*porosity*of*the*clay*of*0.10,*calculate The*total*amount*of*leachate*that*must*be*collected*and*treated*each*year.*Assume*the*
total*area*of*the*landfill*base*is*5000*m2.*
Homework Equations
q = k (h/L) A
The Attempt at a Solution
I can do the question but am wondering if I used 0.5m or 1.5m as h?
