How to anticipate their production?
How to anticipate their production?
Leachate quantity >Calculation based on: 1-Empirical data 2-Water mass balance How much field capacities are exceeded 3-Model (HELP)
Calculation based on: 1‐ Empirical data 2‐ Water mass balance How much field capacities are exceeded 3‐ Model (HELP) Leachate quantity
Empirical formula >Formula 1(Factor Analysis Approach): Q=(GA1+G2A2).7.10-3 >Q:total leachate quantity(m3/d) >A:landfill area >C:coefficient of permecapacities >I:daily conversion value of maximum precipitation >1:operating area 2:coverage area
Empirical formula Formula 1(Factor Analysis Approach): Q: total leachate quantity(m 3/d) A: landfill area C: coefficient of permecapacities I: daily conversion value of maximum precipitation 1: operating area ; 2: coverage area
>Formula 2: Q=0.25[1+（G-1)lg(1.4m.3)]W/m.6 Q=0.25 CW/R0.6 >Formula 3: Q=(C·IA+C20.4m:A)/1000, C1=(0.002(m)2+0.16m+21)/100, C2=(0.002(0.41m)2+0.16×0.4m+21)/100
Formula 2: Formula 3:
Water mass balance Precipitation(P) Interception and evapotranspiration by vegetation Evapotranspiration(E) Infiltration Surface Surface runoff(R) water Percolation (C) run-on Moisture content of waste(S) Groundwater Leachate Leachate escape to environment Figure 4-4 Schematic of components of water balance within a landfill
Water mass balance