Improvement of permeability of waste sludge by mixing with slag or construction and demolition waste

摘要: To determine the allowable ratio of waste sludge required to ensure an aerobic zone in landfill, we investigated permeability, which involved mixing sludge, major landfill Japan, at different ratios with other wastes (slag and construction demolition (C&D)). We measured parameters sample permeability analyzed that exert a large influence on oxygen penetration depth simulation model accounting for both diffusion convection driven by temperature gradients. also determined critical volumetric contents gas and/or water change significantly when is mixed sand or gravel. From results simulations, layer, difference between inside outside temperatures consumption rate resulting depth. The was considering balance above three parameters. By keeping content below 25%, air several meters were achieved modeling.