|
|||||||
|
|||||||
|
|||||||
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||
| Tendrain for Leachate Collection and Removal System (LCRS) | ||||||||||
|
New River Regional Landfill |
||||||||||
 The engineers of Jones, Edmunds and Associates, Inc, in an effort to develop a flat bottom design for a landfill at New River Regional Landfill, were in search of a high flow geonet to incorporate into the design. Tenax Tendrain was determined to be the best geocomposite for use in the design due to Tendrain's high flow capacity along long and flat slopes. Tendrain is also capable of maintaining high flow under heavy loads.This double geonet bottom liner system does not incorporate leachate collection laterals which are common in traditional, corrugated bottom liner deisgns. The combined effect of simplifying the bottom liner grading plan and eliminating the leachate collection laterals results in significant cost savings to the facility owner. It provides an estimated 31% reduction in construction costs, and an approximate 42% reduction in construction duration. The other benefits of this "low-head high flow" design include: reduced potential for leakage into the leak detection system and environment due to minimal leachate head in the leachate collection system; reduced potential for construction claims and owner liability due to simplified construction requirements as well as separation of subcontractor work; and reduced potential for leachate system failure and associated regulatory exceedances, due to the entire triplanar geonet layer overlying the leachate collection geomembrane functioning as the "conveyance" channel, rather than relying on a small number of colleciton lateral pipes.
|
||||||||||
| |
|
© 2006 TENAX Group, All Rights Reserved |