title: Forecasting the settlement of a bioreactor landfill based on gas pressure changes.
abstract: In order to study the influence of settlement under gas pressure in bioreactor landfill, the landfill is simplified as a one-way gas seepage field, combining Darcy's Law, the gas equation of state, and the principle of effective stress and fluid dynamics of porous media theory. First assume that the bioreactor landfill leachate is fully recharged on the basis of gas mass conservation, then according to the changes in gas pressure (inside the landfill and surrounding atmosphere) during the gas leakage time and settlement in the landfill, establish a numerical model of bioreactor landfill settlement under the action of the gas pressure, and use the finite difference method to solve it. Through a case study, the model's improved prediction of the settlement of bioreactor landfill is demonstrated.
authors.affiliation: 1College of Resources & Civil Engineering, Northeastern University, Shenyang, Liaoning, People's Republic of China.
authors.forename: Gang
authors.initials: G
authors.lastname: Qiu
authors.forename: Liang
authors.initials: L
authors.lastname: Li
authors.forename: Hongjun
authors.initials: H
authors.lastname: Sun
mesh_terms: D000393:Air Pollutants / Q000032:analysis / Q000737:chemistry; D019149:Bioreactors; D004784:Environmental Monitoring / Q000379:methods*; D005544:Forecasting; D005740:Gases / Q000032:analysis / Q000737:chemistry; D008962:Models, Theoretical; D016062:Porosity; D011312:Pressure; D064091:Waste Disposal Facilities; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry*
chemical_list: D000393:Air Pollutants; D005740:Gases; D014874:Water Pollutants, Chemical
keywords: Bioreactor landfill; biodegradation; finite difference method; gas pressure; settlement