Premium
Apportionment of net recharge in landfill covering layer into separate components of vertical leakage and horizontal seepage
Author(s) -
Lentz John J.
Publication year - 1981
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr017i004p01231
Subject(s) - leachate , groundwater recharge , groundwater , linearization , environmental science , leakage (economics) , ordinary differential equation , mathematics , hydrology (agriculture) , differential equation , geology , geotechnical engineering , aquifer , nonlinear system , mathematical analysis , engineering , waste management , economics , macroeconomics , physics , quantum mechanics
In order to assess the probable impact on groundwater of contaminated leachate from landfill waste, it is necessary to estimate the quantity of leachate. This requires an accounting of the water surplus in a sloping cover placed over a freestanding landfill. By using input‐output analysis, water surplus is separated into a lateral seepage fraction and a vertical leakage fraction. The equation used is differentiable to the Boussinesq equation. By linearization the partial differential input‐output equation is transformed into an ordinary differential equation solvable by standard techniques. An example is given.