Abstract
Most modern landfills are fitted with a number of gas extraction wells. The concept of "radius of influence" of a well has become established as a single parameter related to the size of the region that a particular well can control. When several wells are present, their individual suctions interact to alter the radius influence of each. This paper uses mathematical modelling to develop a simple quantitative measure which relates the effect on gas yield at one well due to the pressure of its neighbours. This measure (termed the "yield reduction coefficient") is independent of the underlying rate of gas generation. Some generic guide-lines are given to show how the physical parameters of a site affect these yield reduction coefficients.
Get full access to this article
View all access options for this article.