Comparative Analysis of Efficiency of Passive and Controlled Active Degassing Schemes of MSW Landfill

Abstract

The disadvantages of existing technologies of landfill degassing are marked: at passive degassing there are no technological possibilities of biogas flow control in time at change of conditions of its formation in the process of biochemical fermentation and change of its chemical composition, and at active degassing of the landfill the volume of extracted gas from the body of the landfill cannot be significantly increased and accordingly the efficiency of technical methods at realization of the given method remains reduced. The technology of landfill degassing is proposed, which provides reduction of negative impact on the environment by controlling the flow rate and chemical composition of biogas emissions into the atmosphere, both during the operation of the landfill, and during the period of reclamation, and after it until the cessation of gas generation of the landfill body.