Joseph P. Curro, PE, BCEE Principal Engineer

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Presentation transcript:

Joseph P. Curro, PE, BCEE Principal Engineer Elimination of Positive Pressure Under a Landfill Cap Using Flat, Corrugated, Perforated Collector Piping Boston, MA

Quantification of problem Cap bubbling Positive pressure under cap Dead grass Elevated surface emissions Odors – high H2S gas Cap material overlap – not sealed

Remediation plan Locate extent of problem Determine best solution Horizontal gas collector Choose from collector types Flat, corrugated, perforated pipe Cap modification/repairs

Flat, corrugated, perforated pipe Panel pipe Filter fabric wrapped Supplied in a roll Large width / contact surface Structural strength Ease of installation No stone pack required

Conclusions Problem-free implementation Speed of installation Minimal disruption / odors Thriving grass Low surface methane emissions Reasonable cost Success!